How to edit one specific row/tuple in Server Management Studio 2008/2012/2014/2016

Step 1: Right button mouse > Select "Edit Top 200 Rows"

Step 2: Navigate to Query Designer > Pane > SQL (Shortcut: Ctrl+3)

Step 3: Modify the query

Step 4: Right button mouse > Select "Execute SQL" (Shortcut: Ctrl+R)

You can try this code. Fast, you can also include special characters

@echo off
set "str=[string]"
echo %str% > "%tmp%\STR"
for %%P in ("%TMP%\STR") do (set /a strlen=%%~zP-3)
echo String lenght: %strlen%

In order to unit test code that relies on your database you need to setup a database or mock for each and every test.

1. Having a database (real or mocked) with a single state for all your tests will bite you quickly; you cannot test all records are valid and some aren't from the same data.
2. Setting up an in-memory database in a OneTimeSetup will have issues where the old database is not cleared down before the next test starts up. This will show as tests working when you run them individually, but failing when you run them all.
3. A Unit test should ideally only set what affects the test

I am working in an application that has a lot of tables with a lot of connections and some massive Linq blocks. These need testing. A simple grouping missed, or a join that results in more than 1 row will affect results.

To deal with this I have setup a heavy Unit Test Helper that is a lot of work to setup, but enables us to reliably mock the database in any state, and running 48 tests against 55 interconnected tables, with the entire database setup 48 times takes 4.7 seconds.

Here's how:

1. In the Db context class ensure each table class is set to virtual

   public virtual DbSet<Branch> Branches { get; set; }
   public virtual DbSet<Warehouse> Warehouses { get; set; }
   

2. In a UnitTestHelper class create a method to setup your database. Each table class is an optional parameter. If not supplied, it will be created through a Make method

   internal static Db Bootstrap(bool onlyMockPassedTables = false, List<Branch> branches = null, List<Products> products = null, List<Warehouses> warehouses = null)
   {
       if (onlyMockPassedTables == false) {
           branches ??= new List<Branch> { MakeBranch() };
           warehouses ??= new List<Warehouse>{ MakeWarehouse() };
       }
   

3. For each table class, each object in it is mapped to the other lists

       branches?.ForEach(b => {
           b.Warehouse = warehouses.FirstOrDefault(w => w.ID == b.WarehouseID);
       });
   
       warehouses?.ForEach(w => {
           w.Branches = branches.Where(b => b.WarehouseID == w.ID);
       });
   

4. And add it to the DbContext

        var context = new Db(new DbContextOptionsBuilder<Db>().UseInMemoryDatabase(Guid.NewGuid().ToString()).Options);
        context.Branches.AddRange(branches);
        context.Warehouses.AddRange(warehouses);
        context.SaveChanges();
        return context;
    }
   

5. Define a list of IDs to make is easier to reuse them and make sure joins are valid

    internal const int BranchID = 1;
    internal const int WarehouseID = 2;
   

6. Create a Make for each table to setup the most basic, but connected version it can be

    internal static Branch MakeBranch(int id = BranchID, string code = "The branch", int warehouseId = WarehouseID) => new Branch { ID = id, Code = code, WarehouseID = warehouseId };
    internal static Warehouse MakeWarehouse(int id = WarehouseID, string code = "B", string name = "My Big Warehouse") => new Warehouse { ID = id, Code = code, Name = name };
   

It's a lot of work, but it only needs doing once, and then your tests can be very focused because the rest of the database will be setup for it.

[Test]
[TestCase(new string [] {"ABC", "DEF"}, "ABC", ExpectedResult = 1)]
[TestCase(new string [] {"ABC", "BCD"}, "BC", ExpectedResult = 2)]
[TestCase(new string [] {"ABC"}, "EF", ExpectedResult = 0)]
[TestCase(new string[] { "ABC", "DEF" }, "abc", ExpectedResult = 1)]
public int Given_SearchingForBranchByName_Then_ReturnCount(string[] codesInDatabase, string searchString)
{
    // Arrange
    var branches = codesInDatabase.Select(x => UnitTestHelpers.MakeBranch(code: $"qqqq{x}qqq")).ToList();
    var db = UnitTestHelpers.Bootstrap(branches: branches);
    var service = new BranchService(db);

    // Act
    var result = service.SearchByName(searchString);

    // Assert
    return result.Count();
}

Let's say you want to match the literal its[brac]et.

You don't need to escape the ] as it has special meaning only when it is paired with [.

Therefore escaping [ suffices to solve the problem. You can escape [ by replacing it with [[].

Two issues:

1. You're passing the jQuery wrapper of the element into parseInt, which isn't what you want, as parseInt will call toString on it and get back "[object Object]". You need to use val or text or something (depending on what the element is) to get the string you want.

2. You're not telling parseInt what radix (number base) it should use, which puts you at risk of odd input giving you odd results when parseInt guesses which radix to use.

Fix if the element is a form field:

//                               vvvvv-- use val to get the value
var test = parseInt($("#testid").val(), 10);
//                                    ^^^^-- tell parseInt to use decimal (base 10)

Fix if the element is something else and you want to use the text within it:

//                               vvvvvv-- use text to get the text
var test = parseInt($("#testid").text(), 10);
//                                     ^^^^-- tell parseInt to use decimal (base 10)

Here is my solution for this

public void ArrayPush<T>(ref T[] table, object value)
{
    Array.Resize(ref table, table.Length + 1); // Resizing the array for the cloned length (+-) (+1)
    table.SetValue(value, table.Length - 1); // Setting the value for the new element
}

How to use it? So simple.
Array Push Example

string[] table = { "apple", "orange" };
ArrayPush(ref table, "banana");

Array.ForEach(table, (element) => Console.WriteLine(element));
// "apple"
// "orange"
// "banana"

Really simple & useful.
It is some tricky but it works

You could also try jARVEST.

It is based on a JRuby DSL over a pure-Java engine to spider-scrape-transform web sites.

Example:

Find all links inside a web page (wget and xpath are constructs of the jARVEST's language):

wget | xpath('//a/@href')

Inside a Java program:

Jarvest jarvest = new Jarvest();
  String[] results = jarvest.exec(
    "wget | xpath('//a/@href')", //robot! 
    "http://www.google.com" //inputs
  );
  for (String s : results){
    System.out.println(s);
  }

The hash is never sent to the server, so no.

Here's a simple way.

/**
 * Add css to the document
 * @param {string} css
 */
function addCssToDocument(css){
  var style = document.createElement('style')
  style.innerText = css
  document.head.appendChild(style)
}

Because both a and b have only one axis, as their shape is (3), and the axis parameter specifically refers to the axis of the elements to concatenate.

this example should clarify what concatenate is doing with axis. Take two vectors with two axis, with shape (2,3):

a = np.array([[1,5,9], [2,6,10]])
b = np.array([[3,7,11], [4,8,12]])

concatenates along the 1st axis (rows of the 1st, then rows of the 2nd):

np.concatenate((a,b), axis=0)
array([[ 1,  5,  9],
       [ 2,  6, 10],
       [ 3,  7, 11],
       [ 4,  8, 12]])

concatenates along the 2nd axis (columns of the 1st, then columns of the 2nd):

np.concatenate((a, b), axis=1)
array([[ 1,  5,  9,  3,  7, 11],
       [ 2,  6, 10,  4,  8, 12]])

to obtain the output you presented, you can use vstack

a = np.array([1,2,3])
b = np.array([4,5,6])
np.vstack((a, b))
array([[1, 2, 3],
       [4, 5, 6]])

You can still do it with concatenate, but you need to reshape them first:

np.concatenate((a.reshape(1,3), b.reshape(1,3)))
array([[1, 2, 3],
       [4, 5, 6]])

Finally, as proposed in the comments, one way to reshape them is to use newaxis:

np.concatenate((a[np.newaxis,:], b[np.newaxis,:]))

If you want to quit without saving in Vim and have Vim return a non-zero exit code, you can use :cq.

I use this all the time because I can't be bothered to pinky shift for !. I often pipe things to Vim which don't need to be saved in a file. We also have an odd SVN wrapper at work which must be exited with a non-zero value in order to abort a checkin.

Solution irrespective of different jurisdictions having different holidays:

If you need to find the right id within a table, you can use this snippet. The Table model is a sqlalchemy model and the dates to search from are in the field day.

def last_relevant_date(db: Session, given_date: date) -> int:
    available_days = (db.query(Table.id, Table.day)
                      .order_by(desc(Table.day))
                      .limit(100).all())
    close_dates = pd.DataFrame(available_days)
    close_dates['delta'] = close_dates['day'] - given_date
    past_dates = (close_dates
                  .loc[close_dates['delta'] < pd.Timedelta(0, unit='d')])
    table_id = int(past_dates.loc[past_dates['delta'].idxmax()]['id'])
    return table_id

This is not a solution that I would recommend when you have to convert in bulk. It is rather generic and expensive as you are not using joins. Moreover, it assumes that you have a relevant day that is one of the 100 most recent days in the model Table. So it tackles data input that may have different dates.

You can have an auto-Incrementing column that is not the PRIMARY KEY, as long as there is an index (key) on it:

CREATE TABLE members ( 
  id int(11)  UNSIGNED NOT NULL AUTO_INCREMENT,
  memberid VARCHAR( 30 ) NOT NULL , 
  `time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP , 
  firstname VARCHAR( 50 ) NULL , 
  lastname VARCHAR( 50 ) NULL , 
  PRIMARY KEY (memberid) ,
  KEY (id)                          --- or:    UNIQUE KEY (id)
) ENGINE = MYISAM; 

 $ npm uninstall -g angular-cli 
 $ npm cache clean 
 $ npm install -g angular-cli

I based my answer on Daniel López Lacalle and this post http://www.henning.ms/2013/09/09/viewpager-that-simply-dont-measure-up/. The problem with Daniel's answer is that in some cases my children had a height of zero. The solution was to unfortunately measure twice.

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    int mode = MeasureSpec.getMode(heightMeasureSpec);
    // Unspecified means that the ViewPager is in a ScrollView WRAP_CONTENT.
    // At Most means that the ViewPager is not in a ScrollView WRAP_CONTENT.
    if (mode == MeasureSpec.UNSPECIFIED || mode == MeasureSpec.AT_MOST) {
        // super has to be called in the beginning so the child views can be initialized.
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        int height = 0;
        for (int i = 0; i < getChildCount(); i++) {
            View child = getChildAt(i);
            child.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
            int h = child.getMeasuredHeight();
            if (h > height) height = h;
        }
        heightMeasureSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);
    }
    // super has to be called again so the new specs are treated as exact measurements
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}

This also lets you set a height on the ViewPager if you so want to or just wrap_content.

There are a bunch of color descriptors used to recognise objects, the paper below compares a lot of them. They are specially powerful when combined with SIFT or SURF. SURF or SIFT alone are not very useful in a coca cola can image because they don't recognise a lot of interest points, you need the color information to help. I use BIC (Border/Interior Pixel Classi?cation) with SURF in a project and it worked great to recognise objects.

Color descriptors for Web image retrieval: a comparative study

you can put

getchar();

before the return from the main function. That will wait for a character input before exiting the program.

Alternatively you could run your program from a command line and the output would be visible.

Since Java 8 you can call java.time.Instant.toEpochMilli().

For example the call

final long currentTimeJava8 = Instant.now().toEpochMilli();

gives you the same results as

final long currentTimeJava1 = System.currentTimeMillis();

const static int newvals[] = {34,2,4,5,6};

std::copy(newvals, newvals+sizeof(newvals)/sizeof(newvals[0]), array);

Use -o, which means "or":

find Documents \( -name "*.py" -o -name "*.html" \)

You'd need to build that command line programmatically, which isn't that easy.

Are you using bash (or Cygwin on Windows)? If you are, you should be able to do this:

ls **/*.py **/*.html

which might be easier to build programmatically.

I like Stefan’s answer (Sep 11 ’13) but would like to make it a bit stronger:

If the vector ends with a null terminator, you should not use (v.begin(), v.end()): you should use v.data() (or &v[0] for those prior to C++17).

If v does not have a null terminator, you should use (v.begin(), v.end()).

If you use begin() and end() and the vector does have a terminating zero, you’ll end up with a string "abc\0" for example, that is of length 4, but should really be only "abc".

Your css is here: Project/Web/Support/Styles/file.css

1 time ../ means Project/Web/Support and 2 times ../ i.e. ../../ means Project/Web

Try:

background-image: url('../../images/image.png');

str1.toLowerCase().contains(str2.toLowerCase())

For Eclipse Mars use the similar approach as harshit.

1) Help -> Install New Software
2) Use url: http://download.oracle.com/otn_software/oepe/mars repository Above is the OEPE tool provided by oracle for EE development.
3) From all the suggestions, select Glassfish Tools, (Oracle Weblogic Server Tools, Oracle Weblogic Scripting Tools, Oracle patches, Oracle Maven Tools).
4) Install it.
5) Restart eclipse

In point 3) are 4 tools are in braces, I don't know minimal combination, but only install Glassfish Tools has no effect.

During restart Oepe ask for Java 8 JDK if Eclipse run on on older version.

Eclipse 4.5.0 Mars JDK : 1.8

SQL Server recognizes 'TRUE' and 'FALSE' as bit values. So, use a bit data type!

declare @var bit
set @var = 'true'
print @var

That returns 1.

You can also try this:

data = ['itemA.ABC', 'itemB.defg', 'itemC.drug', 'itemD.ashok']
x = []
for (i, item) in enumerate(data):
      a = (i, str(item).split('.'))
      x.append(a)
for index, value in x:
     print(index, value)

The output is

0 ['itemA', 'ABC']
1 ['itemB', 'defg']
2 ['itemC', 'drug']
3 ['itemD', 'ashok']

A friend who is a JIRA wiz showed me that you can actually pass the filter (escaped) as a jqlQuery parameter to JIRA via URL:

http://hostname/secure/IssueNavigator!executeAdvanced.jspa?clear=true&runQuery=true&jqlQuery=created%3E='2010-05-31%2000:00'%20AND%20created%3C='2010-06-06%2023:59'%20ORDER%20BY%20created%20ASC

I created an ASP.Net page which generates the URLs based on an offset week or month.

Everybody's happy!

If u want a direct/ quick away, without assing to variables:

{
 urArray.map((prop, key) => {
     console.log(emp);
     return <Picker.Item label={emp.Name} value={emp.id} />;
 })
}

How about mkString ?

theStrings.mkString(",")

A variant exists in which you can specify a prefix and suffix too.

See here for an implementation using foldLeft, which is much more verbose, but perhaps worth looking at for education's sake.

The best way is to use menu mnemonics, i.e. to have menu entries in your main form that get assigned the keyboard shortcut you want. Then everything else is handled internally and all you have to do is to implement the appropriate action that gets executed in the Click event handler of that menu entry.

If you use dplyr package you can do:

library(dplyr)
filter(df, aged <= laclen)

import {Router, ActivatedRoute, Params} from '@angular/router';

constructor(private activatedRoute: ActivatedRoute) { }

  ngOnInit() {
    this.activatedRoute.paramMap
    .subscribe( params => {
    let id = +params.get('id');
    console.log('id' + id);
    console.log(params);


id12
ParamsAsMap {params: {…}}
keys: Array(1)
0: "id"
length: 1
__proto__: Array(0)
params:
id: "12"
__proto__: Object
__proto__: Object
        }
        )

      }

Ajax Submit form with out page refresh by using jquery ajax method first include library jquery.js and jquery-form.js then create form in html:

<form action="postpage.php" method="POST" id="postForm" >

<div id="flash_success"></div>

name:
<input type="text" name="name" />
password:
<input type="password" name="pass" />
Email:
<input type="text" name="email" />

<input type="submit" name="btn" value="Submit" />
</form>

<script>
  var options = { 
        target:        '#flash_success',  // your response show in this ID
        beforeSubmit:  callValidationFunction,
        success:       YourResponseFunction  
    };
    // bind to the form's submit event
        jQuery('#postForm').submit(function() { 
            jQuery(this).ajaxSubmit(options); 
            return false; 
        }); 


});
function callValidationFunction()
{
 //  validation code for your form HERE
}

function YourResponseFunction(responseText, statusText, xhr, $form)
{
    if(responseText=='success')
    {
        $('#flash_success').html('Your Success Message Here!!!');
        $('body,html').animate({scrollTop: 0}, 800);

    }else
    {
        $('#flash_success').html('Error Msg Here');

    }
}
</script>

It depends on which version of Oracle? Older versions require exp (export), newer versions use expdp (data pump); exp was deprecated but still works most of the time.

Before starting, note that Data Pump exports to the server-side Oracle "directory", which is an Oracle symbolic location mapped in the database to a physical location. There may be a default directory (DATA_PUMP_DIR), check by querying DBA_DIRECTORIES:

  SQL> select * from dba_directories;

... and if not, create one

  SQL> create directory DATA_PUMP_DIR as '/oracle/dumps';
  SQL> grant all on directory DATA_PUMP_DIR to myuser;    -- DBAs dont need this grant

Assuming you can connect as the SYSTEM user, or another DBA, you can export any schema like so, to the default directory:

 $ expdp system/manager schemas=user1 dumpfile=user1.dpdmp

Or specifying a specific directory, add directory=<directory name>:

 C:\> expdp system/manager schemas=user1 dumpfile=user1.dpdmp directory=DUMPDIR

With older export utility, you can export to your working directory, and even on a client machine that is remote from the server, using:

 $ exp system/manager owner=user1 file=user1.dmp

Make sure the export is done in the correct charset. If you haven't setup your environment, the Oracle client charset may not match the DB charset, and Oracle will do charset conversion, which may not be what you want. You'll see a warning, if so, then you'll want to repeat the export after setting NLS_LANG environment variable so the client charset matches the database charset. This will cause Oracle to skip charset conversion.

Example for American UTF8 (UNIX):

 $ export NLS_LANG=AMERICAN_AMERICA.AL32UTF8

Windows uses SET, example using Japanese UTF8:

 C:\> set NLS_LANG=Japanese_Japan.AL32UTF8

More info on Data Pump here: http://docs.oracle.com/cd/B28359_01/server.111/b28319/dp_export.htm#g1022624

For iPhone Devices : Now we need only one size iPhone 6 Plus (5.5 Inch) • 1242 x 2208 Then we have check box there, in all other sizes to : Use 5.5-Inch Display

None of those work for me.

.fa-volume-down {
    color: white;
    width: 50% !important;
    height: 50% !important;
    margin-top: 8%;
    margin-left: 7.5%;
    font-size: 1em;
    background-size: 120%;
}

use this

$date = date('m/d/Y h:i:s', time());

and then in MYSQL do

type=varchar

then date and time will be successfully inserted

To expand on Yuchen's answer, you can include files and paths as a link. This is not the same thing as adding the existing items because it doesn't make an extra copy in your project's folder structure. It is useful if you want one canonical folder / file etc to be used in a lot of different places but you only want to maintain one version/copy of it.

Here is an example of what you can add to a *.csproj file to create the link

<Compile Include="$(Codez)\z.Libraries\Common\Strings\RegexExtensions.cs">
    <Link>Helpers\RegexExtensions.cs</Link>
</Compile>

<Compile Include="..\..\z.Libraries\MoreLINQ\MoreLinq\ExceptBy.cs">
    <Link>Helpers\ExceptBy.cs</Link>
</Compile>

<Content Include="C:\Codez\Libs\Folder\OtherFolder\**\*.*">
    <Link>%(RecursiveDir)%(Filename)%(Extension)</Link>
    <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</Content>

$(Codez) is a Windows Environment variable I defined, you can use the built-in Environment variables in the same manner.

The last example group is a bunch of content files I need in the final output. See https://stackoverflow.com/a/11808911/492 and other answers & links there for more on that.

More MSBuild info at https://msdn.microsoft.com/en-us/library/bb629388.aspx

As already hinted at, isin requires columns and indices to be the same for a match. If match should only be on row contents, one way to get the mask for filtering the rows present is to convert the rows to a (Multi)Index:

In [77]: df1 = pandas.DataFrame(data = {'col1' : [1, 2, 3, 4, 5, 3], 'col2' : [10, 11, 12, 13, 14, 10]})
In [78]: df2 = pandas.DataFrame(data = {'col1' : [1, 3, 4], 'col2' : [10, 12, 13]})
In [79]: df1.loc[~df1.set_index(list(df1.columns)).index.isin(df2.set_index(list(df2.columns)).index)]
Out[79]:
   col1  col2
1     2    11
4     5    14
5     3    10

If index should be taken into account, set_index has keyword argument append to append columns to existing index. If columns do not line up, list(df.columns) can be replaced with column specifications to align the data.

pandas.MultiIndex.from_tuples(df<N>.to_records(index = False).tolist())

could alternatively be used to create the indices, though I doubt this is more efficient.

Also; auto it = std::next(v.begin(), index);

Update: Needs a C++11x compliant compiler

This kind of query should work - after rewriting with explicit JOIN syntax:

SELECT something
FROM   master      parent
JOIN   master      child ON child.parent_id = parent.id
LEFT   JOIN second parentdata ON parentdata.id = parent.secondary_id
LEFT   JOIN second childdata ON childdata.id = child.secondary_id
WHERE  parent.parent_id = 'rootID'

The tripping wire here is that an explicit JOIN binds before "old style" CROSS JOIN with comma (,). I quote the manual here:

In any case JOIN binds more tightly than the commas separating FROM-list items.

After rewriting the first, all joins are applied left-to-right (logically - Postgres is free to rearrange tables in the query plan otherwise) and it works.

Just to make my point, this would work, too:

SELECT something
FROM   master parent
LEFT   JOIN second parentdata ON parentdata.id = parent.secondary_id
,      master child
LEFT   JOIN second childdata ON childdata.id = child.secondary_id
WHERE  child.parent_id = parent.id
AND    parent.parent_id = 'rootID'

But explicit JOIN syntax is generally preferable, as your case illustrates once again.

And be aware that multiple (LEFT) JOIN can multiply rows:

• Two SQL LEFT JOINS produce incorrect result

You need to stringify the json, not calling toString

var buf = Buffer.from(JSON.stringify(obj));

And for converting string to json obj :

var temp = JSON.parse(buf.toString());

In the GSM specification 3GPP TS 11.11, there are 10 bytes set aside in the MSISDN EF (6F40) for 'dialing number'. Since this is the GSM representation of a phone number, and it's usage is nibble swapped, (and there is always the possibility of parentheses) 22 characters of data should be plenty.

In my experience, there is only one instance of open/close parentheses, that is my reasoning for the above.

In swift

 yourLabel.intrinsicContentSize().width 

You can run a batch file that calls your program, check out the discussion here for how to do it: http://www.pcworld.com/article/115628/windows_tips_make_windows_start_and_stop_the_way_you_want.html

(from google search: windows schedule task run at shut down)

I believe, the 500ms run in the background, while the rest of the code continues to execute and empties the list.

Then after 500ms nothing happens, as no function-call is implemented in the after-callup (same as frame.after(500, function=None))

It seems some what center of the screen. So I would like to do like this

body { 
     background: url('http://oi44.tinypic.com/33tjudk.jpg') no-repeat center center fixed;    
     background-size:cover; 
     text-align: 0 auto; // Make the play button horizontal center
}

#play_button {
    position:absolute;  // absolutely positioned
    transition: .5s ease;
    top: 50%;  // Makes vertical center
} 

I believe that the best format for universal interoperability is not the ISO-8601 string, but rather the format used by EJSON:

{ "myDateField": { "$date" : <ms-since-epoch> } }

As described here: https://docs.meteor.com/api/ejson.html

Benefits

1. Parsing performance: If you store dates as ISO-8601 strings, this is great if you are expecting a date value under that particular field, but if you have a system which must determine value types without context, you're parsing every string for a date format.
2. No Need for Date Validation: You need not worry about validation and verification of the date. Even if a string matches ISO-8601 format, it may not be a real date; this can never happen with an EJSON date.
3. Unambiguous Type Declaration: as far as generic data systems go, if you wanted to store an ISO string as a string in one case, and a real system date in another, generic systems adopting the ISO-8601 string format will not allow this, mechanically (without escape tricks or similar awful solutions).

Conclusion

I understand that a human-readable format (ISO-8601 string) is helpful and more convenient for 80% of use cases, and indeed no-one should ever be told not to store their dates as ISO-8601 strings if that's what their applications understand, but for a universally accepted transport format which should guarantee certain values to for sure be dates, how can we allow for ambiguity and need for so much validation?

SBT use both HTTP/HTTPS/SFTP/SSH and other kind of connections to a repository. so when behind a proxy, these protocols should be available.

In most simple cases on Windows, you just need to pass proxy parameters options to JVM, like:

java -Dhttp.proxyHost=myproxy -Dhttp.proxyPort=8080

That will do.

But if not, there are few things you should be aware of:

1. whether if you are making a HTTPS connection to the repository.
2. whether sever certificates been imported to jre cacerts
3. whether your proxy would replace your server certificates

to solve first, you should pass https proxy parameter to jvm, like:

java -Dhttps.proxyHost=myproxy -Dhttps.proxyPort=8080 -Djavax.net.ssl.trustStore=${TRUST_STORE_PATH}

to solve the second, you should import the ca. there are a lot of tips.

to solve the third, you maybe could considering using a authentication proxy.

to Simplify the config of SBT, it provide sbtconfig.txt and sbtops in the conf directory, look into it.

Reference:
http://www.scala-sbt.org/0.13/docs/Setup-Notes.html
http://www.scala-sbt.org/1.0/docs/Publishing.html

I prefer (a != null) so that the syntax matches reference types.

http://digital.ni.com/public.nsf/allkb/4EA929B78B5718238625789D0071F307

This error occurs because the default value is true for the Embed Interop Types property of the TestStand API Interop assembly referenced in the new project. To resolve this error, change the value of the Embed Interop Types property to False by following these steps: Select the TestStand Interop Assembly reference in the references section of your project in the Solution Explorer. Find the Embed Interop Types property in the Property Browser, and change the value to False

let unix_timestamp = 1549312452_x000D_
// Create a new JavaScript Date object based on the timestamp_x000D_
// multiplied by 1000 so that the argument is in milliseconds, not seconds._x000D_
var date = new Date(unix_timestamp * 1000);_x000D_
// Hours part from the timestamp_x000D_
var hours = date.getHours();_x000D_
// Minutes part from the timestamp_x000D_
var minutes = "0" + date.getMinutes();_x000D_
// Seconds part from the timestamp_x000D_
var seconds = "0" + date.getSeconds();_x000D_
_x000D_
// Will display time in 10:30:23 format_x000D_
var formattedTime = hours + ':' + minutes.substr(-2) + ':' + seconds.substr(-2);_x000D_
_x000D_
console.log(formattedTime);

For more information regarding the Date object, please refer to MDN or the ECMAScript 5 specification.

break interacts solely with the closest enclosing loop or switch, whether it be a for, while or do .. while type. It is frequently referred to as a goto in disguise, as all loops in C can in fact be transformed into a set of conditional gotos:

for (A; B; C) D;
// translates to
A;
goto test;
loop: D;
iter: C;
test: if (B) goto loop;
end:

while (B) D;          // Simply doesn't have A or C
do { D; } while (B);  // Omits initial goto test
continue;             // goto iter;
break;                // goto end;

The difference is, continue and break interact with virtual labels automatically placed by the compiler. This is similar to what return does as you know it will always jump ahead in the program flow. Switches are slightly more complicated, generating arrays of labels and computed gotos, but the way break works with them is similar.

The programming error the notice refers to is misunderstanding break as interacting with an enclosing block rather than an enclosing loop. Consider:

for (A; B; C) {
   D;
   if (E) {
       F;
       if (G) break;   // Incorrectly assumed to break if(E), breaks for()
       H;
   }
   I;
}
J;

Someone thought, given such a piece of code, that G would cause a jump to I, but it jumps to J. The intended function would use if (!G) H; instead.

I'm assuming you figured this out already but:

Technical Reference for Log Files in Configuration Manager

That's a list of client-side logs and what they do. They are located in Windows\CCM\Logs

AppEnforce.log will show you the actual command-line executed and the resulting exit code for each Deployment Type (only for the new style ConfigMgr Applications)

This is my go-to for troubleshooting apps. Haven't really found any other logs that are exceedingly useful.

Although Marcus Ekwall is absolutely right about the synchronicity of append, I have also found that in odd situations sometimes the DOM isn't completely rendered by the browser when the next line of code runs.

In this scenario then shadowdiver solutions is along the correct lines - with using .ready - however it is a lot tidier to chain the call to your original append.

$('#root')
  .append(html)
  .ready(function () {
    // enter code here
  });

If you are using Symfony there's a great rest client bundle that even includes all of the ~100 exceptions and throws them instead of returning some meaningless error code + message.

You should really check it: https://github.com/CircleOfNice/CiRestClientBundle

I love the interface:

try {
    $restClient = new RestClient();
    $response   = $restClient->get('http://www.someUrl.com');
    $statusCode = $response->getStatusCode();
    $content    = $response->getContent();
} catch(OperationTimedOutException $e) {
    // do something
}

Works for all http methods.

Use a list instead and replace your foreach loop with a for loop:

@model IList<BlockedIPViewModel>

@using (Html.BeginForm()) 
{ 
    @Html.AntiForgeryToken()

    @for (var i = 0; i < Model.Count; i++) 
    {
        <tr>
            <td>
                @Html.HiddenFor(x => x[i].IP)           
                @Html.CheckBoxFor(x => x[i].Checked)
            </td>
            <td>
                @Html.DisplayFor(x => x[i].IP)
            </td>
        </tr>
    }
    <div>
        <input type="submit" value="Unblock IPs" />
    </div>
}

Alternatively you could use an editor template:

@model IEnumerable<BlockedIPViewModel>

@using (Html.BeginForm()) 
{ 
    @Html.AntiForgeryToken()
    @Html.EditorForModel()   
    <div>
        <input type="submit" value="Unblock IPs" />
    </div>
}

and then define the template ~/Views/Shared/EditorTemplates/BlockedIPViewModel.cshtml which will automatically be rendered for each element of the collection:

@model BlockedIPViewModel
<tr>
    <td>
        @Html.HiddenFor(x => x.IP)
        @Html.CheckBoxFor(x => x.Checked)
    </td>
    <td>
        @Html.DisplayFor(x => x.IP)
    </td>
</tr>

The reason you were getting null in your controller is because you didn't respect the naming convention for your input fields that the default model binder expects to successfully bind to a list. I invite you to read the following article.

Once you have read it, look at the generated HTML (and more specifically the names of the input fields) with my example and yours. Then compare and you will understand why yours doesn't work.

Strace is a tool that tells you how your application interacts with your operating system.

It does this by telling you what OS system calls your application uses and with what parameters it calls them.

So for instance you see what files your program tries to open, and weather the call succeeds.

You can debug all sorts of problems with this tool. For instance if application says that it cannot find library that you know you have installed you strace would tell you where the application is looking for that file.

And that is just a tip of the iceberg.

The correct way to use max in the having clause is by performing a self join first:

select t1.a, t1.b, t1.c
from table1 t1
join table1 t1_max
  on t1.id = t1_max.id
group by t1.a, t1.b, t1.c
having t1.date = max(t1_max.date)

The following is how you would join with a subquery:

select t1.a, t1.b, t1.c
from table1 t1
where t1.date = (select max(t1_max.date)
                 from table1 t1_max
                 where t1.id = t1_max.id)

Be sure to create a single dataset before using an aggregate when dealing with a multi-table join:

select t1.id, t1.date, t1.a, t1.b, t1.c
into #dataset
from table1 t1
join table2 t2
  on t1.id = t2.id
join table2 t3
  on t1.id = t3.id


select a, b, c
from #dataset d
join #dataset d_max
  on d.id = d_max.id
having d.date = max(d_max.date)
group by a, b, c

Sub query version:

select t1.id, t1.date, t1.a, t1.b, t1.c
into #dataset
from table1 t1
join table2 t2
  on t1.id = t2.id
join table2 t3
  on t1.id = t3.id


select a, b, c
from #dataset d
where d.date = (select max(d_max.date)
                from #dataset d_max
                where d.id = d_max.id)

You need to actually use the shortened array after you remove items from it. You are ignoring the shortened array.

You convert the cookie into an array. You reduce the length of the array and then you never use that shortened array. Instead, you just use the old cookie (the unshortened one).

You should convert the shortened array back to a string with .join(",") and then use it for the new cookie instead of using old_cookie which is not shortened.

You may also not be using .splice() correctly, but I don't know exactly what your objective is for shortening the array. You can read about the exact function of .splice() here.

You try this.

I have already tried it in my django template.

It will work fine. Just remove the curly braces pair {{ and }} from {{source}}.

I have also added <table> tag and that's it.

After modification your code will look something like below.

{% for source in sources %}
   <table>
      <tr>
          <td>{{ source }}</td>
          <td>
              {% if title == source %}
                Just now! 
              {% endif %}
          </td>
      </tr>
   </table>
{% endfor %}

My dictionary looks like below,

{'title':"Rishikesh", 'sources':["Hemkesh", "Malinikesh", "Rishikesh", "Sandeep", "Darshan", "Veeru", "Shwetabh"]}

and OUTPUT looked like below once my template got rendered.

Hemkesh 
Malinikesh  
Rishikesh   Just now!
Sandeep 
Darshan 
Veeru   
Shwetabh    

Uninstallation :

sudo /Library/PostgreSQL/9.6/uninstall-postgresql.app/Contents/MacOS/installbuilder.sh

Removing the data file :

sudo rm -rf /Library/PostgreSQL

Removing the configs :

sudo rm /etc/postgres-reg.ini

And thats it.

I was able to work it out only after adding those two TOGETHER:

dependencies {
...
implementation 'com.android.support:recyclerview-v7:27.1.1'
implementation 'com.android.support:cardview-v7:27.1.1'
...
}

in my build.gradle (Module:app) file

and then press the sync now button

To give a detailed answer to question 3: yes, there are (rare) occasions when you might call the destructor explicitly, in particular as the counterpart to a placement new, as dasblinkenlight observes.

To give a concrete example of this:

#include <iostream>
#include <new>

struct Foo
{
    Foo(int i_) : i(i_) {}
    int i;
};

int main()
{
    // Allocate a chunk of memory large enough to hold 5 Foo objects.
    int n = 5;
    char *chunk = static_cast<char*>(::operator new(sizeof(Foo) * n));

    // Use placement new to construct Foo instances at the right places in the chunk.
    for(int i=0; i<n; ++i)
    {
        new (chunk + i*sizeof(Foo)) Foo(i);
    }

    // Output the contents of each Foo instance and use an explicit destructor call to destroy it.
    for(int i=0; i<n; ++i)
    {
        Foo *foo = reinterpret_cast<Foo*>(chunk + i*sizeof(Foo));
        std::cout << foo->i << '\n';
        foo->~Foo();
    }

    // Deallocate the original chunk of memory.
    ::operator delete(chunk);

    return 0;
}

The purpose of this kind of thing is to decouple memory allocation from object construction.

Isn't this the normal way to free the memory associated with an object?

This is a common way of managing dynamically allocated memory, but it's not a good way to do so. This sort of code is brittle because it is not exception-safe: if an exception is thrown between when you create the object and when you delete it, you will leak that object.

It is far better to use a smart pointer container, which you can use to get scope-bound resource management (it's more commonly called resource acquisition is initialization, or RAII).

As an example of automatic resource management:

void test()
{
    std::auto_ptr<Object1> obj1(new Object1);

} // The object is automatically deleted when the scope ends.

Depending on your use case, auto_ptr might not provide the semantics you need. In that case, you can consider using shared_ptr.

As for why your program crashes when you delete the object, you have not given sufficient code for anyone to be able to answer that question with any certainty.

There are many ways in which you can create unique keys, the simplest method is to use the index when iterating arrays.

Example

    var lists = this.state.lists.map(function(list, index) {
        return(
            <div key={index}>
                <div key={list.name} id={list.name}>
                    <h2 key={"header"+list.name}>{list.name}</h2>
                    <ListForm update={lst.updateSaved} name={list.name}/>
                </div>
            </div>
        )
    });

Wherever you're lopping over data, here this.state.lists.map, you can pass second parameter function(list, index) to the callback as well and that will be its index value and it will be unique for all the items in the array.

And then you can use it like

<div key={index}>

You can do the same here as well

    var savedLists = this.state.savedLists.map(function(list, index) {
        var list_data = list.data;
        list_data.map(function(data, index) {
            return (
                <li key={index}>{data}</li>
            )
        });
        return(
            <div key={index}>
                <h2>{list.name}</h2>
                <ul>
                    {list_data}
                </ul>
            </div>
        )
    });

Edit

However, As pointed by the user Martin Dawson in the comment below, This is not always ideal.

So whats the solution then?

Many

• You can create a function to generate unique keys/ids/numbers/strings and use that
• You can make use of existing npm packages like uuid, uniqid, etc
• You can also generate random number like new Date().getTime(); and prefix it with something from the item you're iterating to guarantee its uniqueness
• Lastly, I recommend using the unique ID you get from the database, If you get it.

Example:

const generateKey = (pre) => {
    return `${ pre }_${ new Date().getTime() }`;
}

const savedLists = this.state.savedLists.map( list => {
    const list_data = list.data.map( data => <li key={ generateKey(data) }>{ data }</li> );
    return(
        <div key={ generateKey(list.name) }>
            <h2>{ list.name }</h2>
            <ul>
                { list_data }
            </ul>
        </div>
    )
});

This should get you started: Using VBA in your own Excel workbook, have it prompt the user for the filename of their data file, then just copy that fixed range into your target workbook (that could be either the same workbook as your macro enabled one, or a third workbook). Here's a quick vba example of how that works:

' Get customer workbook...
Dim customerBook As Workbook
Dim filter As String
Dim caption As String
Dim customerFilename As String
Dim customerWorkbook As Workbook
Dim targetWorkbook As Workbook

' make weak assumption that active workbook is the target
Set targetWorkbook = Application.ActiveWorkbook

' get the customer workbook
filter = "Text files (*.xlsx),*.xlsx"
caption = "Please Select an input file "
customerFilename = Application.GetOpenFilename(filter, , caption)

Set customerWorkbook = Application.Workbooks.Open(customerFilename)

' assume range is A1 - C10 in sheet1
' copy data from customer to target workbook
Dim targetSheet As Worksheet
Set targetSheet = targetWorkbook.Worksheets(1)
Dim sourceSheet As Worksheet
Set sourceSheet = customerWorkbook.Worksheets(1)

targetSheet.Range("A1", "C10").Value = sourceSheet.Range("A1", "C10").Value

' Close customer workbook
customerWorkbook.Close

Using Excel for storing (huge amounts of) data.

I have seen companies holding thousands of rows and using multiple worksheets (due to the row limit of 65535 on previous versions of Excel).

Excel is well suited for reports, data presentation and other tasks, but should not be treated as a database.

The best way around this would be to create an Excel called 'launcher.xlsm' in the same folder as the file you wish to open. In the 'launcher' file put the following code in the 'Workbook' object, but set the constant TargetWBName to be the name of the file you wish to open.

Private Const TargetWBName As String = "myworkbook.xlsx"

'// First, a function to tell us if the workbook is already open...
Function WorkbookOpen(WorkBookName As String) As Boolean
' returns TRUE if the workbook is open
    WorkbookOpen = False
    On Error GoTo WorkBookNotOpen
    If Len(Application.Workbooks(WorkBookName).Name) > 0 Then
        WorkbookOpen = True
        Exit Function
    End If
WorkBookNotOpen:
End Function

Private Sub Workbook_Open()
    'Check if our target workbook is open
    If WorkbookOpen(TargetWBName) = False Then
        'set calculation to manual
        Application.Calculation = xlCalculationManual
        Workbooks.Open ThisWorkbook.Path & "\" & TargetWBName
        DoEvents
        Me.Close False
    End If
End Sub

Set the constant 'TargetWBName' to be the name of the workbook that you wish to open. This code will simply switch calculation to manual, then open the file. The launcher file will then automatically close itself. *NOTE: If you do not wish to be prompted to 'Enable Content' every time you open this file (depending on your security settings) you should temporarily remove the 'me.close' to prevent it from closing itself, save the file and set it to be trusted, and then re-enable the 'me.close' call before saving again. Alternatively, you could just set the False to True after Me.Close

the major difference between greedy method and dynamic programming is in greedy method only one optimal decision sequence is ever generated and in dynamic programming more than one optimal decision sequence may be generated.

This is an improvement of the accepted answer by Carl Meyer. It works with virtualenv for Python 3 and 2 and also for the venv module in Python 3:

import sys


def is_venv():
    return (hasattr(sys, 'real_prefix') or
            (hasattr(sys, 'base_prefix') and sys.base_prefix != sys.prefix))

The check for sys.real_prefix covers virtualenv, the equality of non-empty sys.base_prefix with sys.prefix covers venv.

Consider a script that uses the function like this:

if is_venv():
    print('inside virtualenv or venv')
else:
    print('outside virtualenv or venv')

And the following invocation:

$ python2 test.py 
outside virtualenv or venv

$ python3 test.py 
outside virtualenv or venv

$ python2 -m virtualenv virtualenv2
...
$ . virtualenv2/bin/activate
(virtualenv2) $ python test.py 
inside virtualenv or venv
(virtualenv2) $ deactivate

$ python3 -m virtualenv virtualenv3
...
$ . virtualenv3/bin/activate
(virtualenv3) $ python test.py 
inside virtualenv or venv
(virtualenv3) $ deactivate 

$ python3 -m venv venv3
$ . venv3/bin/activate
(venv3) $ python test.py 
inside virtualenv or venv
(venv3) $ deactivate 

Use:

File.ReadAllLines("My textfile.txt");

Reference: https://msdn.microsoft.com/pt-br/library/s2tte0y1(v=vs.110).aspx

SERVER_IP="$(ip addr show ens160 | grep 'inet ' | cut -f2 | awk '{ print $2}')"

replace ens160 with your interface name

Use the re.escape() function for this:

4.2.3 re Module Contents

escape(string)

Return string with all non-alphanumerics backslashed; this is useful if you want to match an arbitrary literal string that may have regular expression metacharacters in it.

A simplistic example, search any occurence of the provided string optionally followed by 's', and return the match object.

def simplistic_plural(word, text):
    word_or_plural = re.escape(word) + 's?'
    return re.match(word_or_plural, text)

Make sure there is an namespace definition (xmlns) for the namespace your control belong to.

xmlns:myControls="clr-namespace:YourCustomNamespace.Controls;assembly=YourAssemblyName"

<myControls:thecontrol/>

If you use CSS to select a monospace font, the problem of varying character length is easily solved.

select D.DeptName from [Department] D where D.DeptID in 
( 
    select E.DeptId from [Employee] E
    where E.Salary > 1000
    group by E.DeptId
    having count(*) > 2
)

This is the error line:

if (called_from.equalsIgnoreCase("add")) {  --->38th error line

This means that called_from is null. Simple check if it is null above:

String called_from = getIntent().getStringExtra("called");

if(called_from == null) {
    called_from = "empty string";
}
if (called_from.equalsIgnoreCase("add")) {
    // do whatever
} else {
    // do whatever
}

That way, if called_from is null, it'll execute the else part of your if statement.

For Android:

According to latest Facebook SDK,

First you need to call GraphRequest API for getting all the details of user in which API also gives URL of current Profile Picture.

Bundle params = new Bundle();
params.putString("fields", "id,email,gender,cover,picture.type(large)");
new GraphRequest(token, "me", params, HttpMethod.GET,
        new GraphRequest.Callback() {
            @Override
            public void onCompleted(GraphResponse response) {
                if (response != null) {
                    try {
                        JSONObject data = response.getJSONObject();
                        if (data.has("picture")) {
                            String profilePicUrl = data.getJSONObject("picture").getJSONObject("data").getString("url");
                        }
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
}).executeAsync();

If you're not familiar or comfortable with is(), you could just check the value of prop("selected").

As seen here:

$('#mySelectBox option').each(function() {
    if ($(this).prop("selected") == true) {
       // do something
    } else {
       // do something
    }
});?

Edit:

As @gdoron pointed out in the comments, the faster and most appropriate way to access the selected property of an option is via the DOM selector. Here is the fiddle update displaying this action.

if (this.selected == true) {

appears to work just as well! Thanks gdoron.

As Java has no pointer data types, it is impossible to use pointers in Java. Even the few experts will not be able to use pointers in java.

See also the last point in: The Java Language Environment

Take a look at anchor tags. You can create an anchor with

<div id="anchor-name">Heading Text</div>

and refer to it later with

<a href="http://server/page.html#anchor-name">Link text</a>

Open Oracle SQLDeveloper

Right click on connection tab and select new connection

Enter HR_ORCL in connection name and HR for the username and password.

Specify localhost for your Hostname and enter ORCL for the SID.

Click Test.

The status of the connection Test Successfully.

The connection was not saved however click on Save button to save the connection. And then click on Connect button to connect your database.

The connection is saved and you see the connection list.

you can use this too

.parent:hover * {
   /* ... */
}

Definitely Method A because its pooled and thread safe.

If you are using httpclient 4.x, the connection manager is called ThreadSafeClientConnManager. See this link for further details (scroll down to "Pooling connection manager"). For example:

    HttpParams params = new BasicHttpParams();
    SchemeRegistry registry = new SchemeRegistry();
    registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
    ClientConnectionManager cm = new ThreadSafeClientConnManager(params, registry);
    HttpClient client = new DefaultHttpClient(cm, params);

This will get your buttons and labels next to each other, at least. I believe the second part can't be done in css alone, and will need javascript. I found a page that might help you with that part as well, but I don't have time right now to try it out: http://www.webmasterworld.com/forum83/6942.htm

<style type="text/css">
.input input {
  float: left;
}
.input label {
  margin: 5px;
}
</style>
<div class="input radio">
    <fieldset>
        <legend>What color is the sky?</legend>
        <input type="hidden" name="data[Submit][question]" value="" id="SubmitQuestion" />

        <input type="radio" name="data[Submit][question]" id="SubmitQuestion1" value="1"  />
        <label for="SubmitQuestion1">A strange radient green.</label>

        <input type="radio" name="data[Submit][question]" id="SubmitQuestion2" value="2"  />
        <label for="SubmitQuestion2">A dark gloomy orange</label>
        <input type="radio" name="data[Submit][question]" id="SubmitQuestion3" value="3"  />
        <label for="SubmitQuestion3">A perfect glittering blue</label>
    </fieldset>
</div>

I tried Update-Package -reinstall but it fails on a package and stopped processing all remaining packages of projects in my solution.

I ended up with my script that enumerates all package.config files and run Update-Package -Reinstall -ProjectName prj -Id pkg for each project/package.

Hope it can be useful for someone:

$files = Get-ChildItem -Recurse -Include packages.config;

[array]$projectPackages = @();
$files | foreach { [xml]$packageFile = gc $_; $projectName = $_.Directory.Name; $packageFile.packages.package.id | foreach { $projectPackages += @( ,@( $projectName, $_ ) ) } }

$projectPackages | foreach { Update-Package -Reinstall -ProjectName $_[0] -Id $_[1] }

Edit: This is an error that I had: Update-Package : Unable to find package 'EntityFramework.BulkInsert-ef6'. Existing packages must be restored before performing an install or update. Manual run of Update-Package -Reinstall -ProjectName my_prj -Id EntityFramework.BulkInsert-ef6 worked very well.

Here's how I've done it ...

1 . make a small script to test if a file is plain text istext:

#!/bin/bash
[[ "$(file -bi $1)" == *"file"* ]]

2 . use find as before

find . -type f -exec istext {} \; -exec grep -nHi mystring {} \;

Maybe try looking into this as well

!is_int()

JavaScript that allows for syntax checking

JSHint-Eclipse

and autosuggestions for .js files in Eclipse?

1. Use JSDoc more as JSDT has nice support for the standard, so you will get more suggestions for your own code.
2. There is new TernIDE that provide additional hints for .js and AngulatJS .html. Get them together as Anide from http://www.nodeclipse.org/updates/anide/

As Nodeclipse lead, I am always looking for what is available in Eclipse ecosystem. Nodeclipse site has even more links, and I am inviting to collaborate on the JavaScript tools on GitHub

Folks from this theory it seems we cannot run map reduce jobs in parallel.

Lets say I configured total 5 mapper jobs to run on particular node.Also I want to use this in such a way that JOB1 can use 3 mappers and JOB2 can use 2 mappers so that job can run in parallel. But above properties are ignored then how can execute jobs in parallel.

Yes. The casts are redundant. In your expression:

true == 1

Integral promotion applies and the bool value will be promoted to an int and this promotion must yield 1.

Reference: 4.7 [conv.integral] / 4: If the source type is bool... true is converted to one.

Wouldn't occam's razor say to just do this until you need something more complex? It's a bit of a hack, but may suit the needs of someone that wants a quick fix.

.navbar-default .container-fluid{
    background-color:#62ADD7; // Change the color
    margin: -1px -1px 10px -1px; // Get rid of the border
}

Pre-append your commands with sudo.

For example, Instead of vim textfile.txt, used sudo vim textfile.txt. This will resolve the issue.

I had the same problem and I got to solve with this code:

ALTER TABLE `table_name` DROP FOREIGN KEY `id_name_fk`;
ALTER TABLE `table_name` DROP INDEX  `id_name_fk`;

If you're still stuck on PowerShell v1.0 or v2.0, here is my variation on Jason Stangroome's excellent answer.

Create a powershell4.cmd somewhere on your path with the following contents:

@echo off
:: http://stackoverflow.com/questions/7308586/using-batch-echo-with-special-characters
if exist %~dp0powershell.exe.activation_config goto :run
echo.^<?xml version="1.0" encoding="utf-8" ?^>                 > %~dp0powershell.exe.activation_config
echo.^<configuration^>                                        >> %~dp0powershell.exe.activation_config
echo.  ^<startup useLegacyV2RuntimeActivationPolicy="true"^>  >> %~dp0powershell.exe.activation_config
echo.    ^<supportedRuntime version="v4.0"/^>                 >> %~dp0powershell.exe.activation_config
echo.  ^</startup^>                                           >> %~dp0powershell.exe.activation_config
echo.^</configuration^>                                       >> %~dp0powershell.exe.activation_config
:run
:: point COMPLUS_ApplicationMigrationRuntimeActivationConfigPath to the directory that this cmd file lives in
:: and the directory contains a powershell.exe.activation_config file which matches the executable name powershell.exe
set COMPLUS_ApplicationMigrationRuntimeActivationConfigPath=%~dp0
%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe %*
set COMPLUS_ApplicationMigrationRuntimeActivationConfigPath=

This will allow you to launch an instance of the powershell console running under .NET 4.0.

You can see the difference on my system where I have PowerShell 2.0 by examining the output of the following two commands run from cmd.

C:\>powershell -ExecutionPolicy ByPass -Command $PSVersionTable

Name                           Value
----                           -----
CLRVersion                     2.0.50727.5485
BuildVersion                   6.1.7601.17514
PSVersion                      2.0
WSManStackVersion              2.0
PSCompatibleVersions           {1.0, 2.0}
SerializationVersion           1.1.0.1
PSRemotingProtocolVersion      2.1


C:\>powershell4.cmd -ExecutionPolicy ByPass -Command $PSVersionTable

Name                           Value
----                           -----
PSVersion                      2.0
PSCompatibleVersions           {1.0, 2.0}
BuildVersion                   6.1.7601.17514
CLRVersion                     4.0.30319.18408
WSManStackVersion              2.0
PSRemotingProtocolVersion      2.1
SerializationVersion           1.1.0.1

One method that doesn't introduce side-effects to the original:

h = {:a => 'a', :b => 'b'}
h2 = Hash[h.map {|k,v| [k, '%' + v + '%']}]

Hash#map may also be an interesting read as it explains why the Hash.map doesn't return a Hash (which is why the resultant Array of [key,value] pairs is converted into a new Hash) and provides alternative approaches to the same general pattern.

Happy coding.

[Disclaimer: I am not sure if Hash.map semantics change in Ruby 2.x]

"pull-left" is what you need, it looks like you are using Bootstrap 2, I am not sure if that is available, consider bootstrap 3, unless ofcourse it is a huge rework! ... for Bootstrap 3 but you need to make sure you have 12 columns in each row as well, otherwise you will have issues.

Vanilla JDBC only supports named parameters in a CallableStatement (e.g. setString("name", name)), and even then, I suspect the underlying stored procedure implementation has to support it.

An example of how to use named parameters:

//uss Sybase ASE sysobjects table...adjust for your RDBMS
stmt = conn.prepareCall("create procedure p1 (@id int = null, @name varchar(255) = null) as begin "
        + "if @id is not null "
        + "select * from sysobjects where id = @id "
        + "else if @name is not null "
        + "select * from sysobjects where name = @name "
        + " end");
stmt.execute();

//call the proc using one of the 2 optional params
stmt = conn.prepareCall("{call p1 ?}");
stmt.setInt("@id", 10);
ResultSet rs = stmt.executeQuery();
while (rs.next())
{
    System.out.println(rs.getString(1));
}


//use the other optional param
stmt = conn.prepareCall("{call p1 ?}");
stmt.setString("@name", "sysprocedures");
rs = stmt.executeQuery();
while (rs.next())
{
    System.out.println(rs.getString(1));
}

This workaround helped us so much at my job (Tech Support), we made a simple batch file we could run from anywhere (We didnt have the permissions to install it). This workaround will set the variable and then run OpenSSL for you. It also opens up the bin folder for you (cause this is where any files you create or modify will be saved). Also, this is only for Windows.

How to Set Up:

1. Download the OpenSSL binaries here. (Note that this is confirmed to work with version 0.9.8h.)

2. Copy this code to a file named StartOpenSSL.bat. Save this to a location of your choice. It can be run from anywhere.

   @echo off
   title OpenSSL
   
   cd\openssl\bin
   
   if exist "C:\openssl\share\openssl.cnf" (
   
   set OPENSSL_CONF=c:/openssl/share/openssl.cnf
   start explorer.exe c:\openssl\bin
   
   echo Welcome to OpenSSL
   
   openssl
   
   ) else (
   
   echo Error: openssl.cnf was not found
   echo File openssl.cnf needs to be present in c:\openssl\share
   pause
   
   )
   
   exit
   

3. Once you have downloaded the OpenSSL binaries, extract them to your C drive in a folder titled OpenSSL. (The path needs to be C:\OpenSSL). Do not move any of the folders contents around, just extract them to the folder.
4. You are ready to use OpenSSL. This is a great workaround for Windows users who dont have the privileges to install it as it requires no permissions. Just run the bat file from earlier by double clicking it.

If you NPM those modules you can serve them using static redirect.

First install the packages:

npm install jquery
npm install bootstrap

Then on the server.js:

var express = require('express');
var app = express();

// prepare server
app.use('/api', api); // redirect API calls
app.use('/', express.static(__dirname + '/www')); // redirect root
app.use('/js', express.static(__dirname + '/node_modules/bootstrap/dist/js')); // redirect bootstrap JS
app.use('/js', express.static(__dirname + '/node_modules/jquery/dist')); // redirect JS jQuery
app.use('/css', express.static(__dirname + '/node_modules/bootstrap/dist/css')); // redirect CSS bootstrap

Then, finally, at the .html:

<link rel="stylesheet" href="/css/bootstrap.min.css">
<script src="/js/jquery.min.js"></script>
<script src="/js/bootstrap.min.js"></script>

I would not serve pages directly from the folder where your server.js file is (which is usually the same as node_modules) as proposed by timetowonder, that way people can access your server.js file.

Of course you can simply download and copy & paste on your folder, but with NPM you can simply update when needed... easier, I think.

For comparing jsons I recommend using JSONCompare: https://github.com/fslev/json-compare

// Compare by regex
String expected = "{\"a\":\".*me.*\"}";
String actual = "{\"a\":\"some text\"}";
JSONCompare.assertEquals(expected, actual);  // True

// Check expected array has no extra elements
String expected = "[1,\"test\",4,\"!.*\"]";
String actual = "[4,1,\"test\"]";
JSONCompare.assertEquals(expected, actual);  // True

// Check expected array has no numbers
String expected = "[\"\\\\\\d+\"]";
String actual = "[\"text\",\"test\"]";
JSONCompare.assertEquals(expected, actual);  // True

// Check expected array has no numbers
String expected = "[\"\\\\\\d+\"]";
String actual = "[2018]";
JSONCompare.assertNotEquals(expected, actual);  // True

I made it calculate days in month from datetimepicker selected month and year , and I but the code in datetimepicker1 textchanged to return the result in a textbox with this code

private void DateTimePicker1_ValueChanged(object sender, EventArgs e)
{
    int s = System.DateTime.DaysInMonth(DateTimePicker1.Value.Date.Year, DateTimePicker1.Value.Date.Month);

    TextBox1.Text = s.ToString();
} 

Assuming that you want to group the data before you generate the key with the sequence, it sounds like you want something like

INSERT INTO HISTORICAL_CAR_STATS (
    HISTORICAL_CAR_STATS_ID, 
    YEAR,
    MONTH, 
    MAKE,
    MODEL,
    REGION,
    AVG_MSRP,
    CNT) 
SELECT MY_SEQ.nextval,
       year,
       month,
       make,
       model,
       region,
       avg_msrp,
       cnt
  FROM (SELECT '2010' year,
               '12' month,
               'ALL' make,
               'ALL' model,
               REGION,
               sum(AVG_MSRP*COUNT)/sum(COUNT) avg_msrp,
               sum(cnt) cnt
          FROM HISTORICAL_CAR_STATS
         WHERE YEAR = '2010' 
           AND MONTH = '12'
           AND MAKE != 'ALL' 
         GROUP BY REGION)

I managed to deal with this problem. Below is the link :

https://github.com/nakosung/ng-dynamic-template-example

with the specific file being:

https://github.com/nakosung/ng-dynamic-template-example/blob/master/src/main.coffee

dynamicTemplate directive hosts dynamic template which is passed within scope and hosted element acts like other native angular elements.

scope.template = '< div ng-controller="SomeUberCtrl">rocks< /div>'

You should not include commands.c in your header file. In general, you should not include .c files. Rather, commands.c should include commands.h. As defined here, the C preprocessor is inserting the contents of commands.c into commands.h where the include is. You end up with two definitions of f123 in commands.h.

commands.h

#ifndef COMMANDS_H_
#define COMMANDS_H_

void f123();

#endif

commands.c

#include "commands.h"

void f123()
{
    /* code */
}

A Bcrypt hash can be stored in a BINARY(40) column.

BINARY(60), as the other answers suggest, is the easiest and most natural choice, but if you want to maximize storage efficiency, you can save 20 bytes by losslessly deconstructing the hash. I've documented this more thoroughly on GitHub: https://github.com/ademarre/binary-mcf

Bcrypt hashes follow a structure referred to as modular crypt format (MCF). Binary MCF (BMCF) decodes these textual hash representations to a more compact binary structure. In the case of Bcrypt, the resulting binary hash is 40 bytes.

Gumbo did a nice job of explaining the four components of a Bcrypt MCF hash:

$<id>$<cost>$<salt><digest>

Decoding to BMCF goes like this:

1. $<id>$ can be represented in 3 bits.
2. <cost>$, 04-31, can be represented in 5 bits. Put these together for 1 byte.
3. The 22-character salt is a (non-standard) base-64 representation of 128 bits. Base-64 decoding yields 16 bytes.
4. The 31-character hash digest can be base-64 decoded to 23 bytes.
5. Put it all together for 40 bytes: 1 + 16 + 23

You can read more at the link above, or examine my PHP implementation, also on GitHub.

Since most of the autocomplete suggestions, including the accepted answer, don't work in today's web browsers (i.e. web browser password managers ignore autocomplete), a more novel solution is to swap between password and text types and make the background color match the text color when the field is a plain text field, which continues to hide the password while being a real password field when the user (or a program like KeePass) is entering a password. Browsers don't ask to save passwords that are stored in plain text fields.

The advantage of this approach is that it allows for progressive enhancement and therefore doesn't require Javascript for a field to function as a normal password field (you could also start with a plain text field instead and apply the same approach but that's not really HIPAA PHI/PII-compliant). Nor does this approach depend on hidden forms/fields which might not necessarily be sent to the server (because they are hidden) and some of those tricks also don't work either in several modern browsers.

jQuery plugin:

https://github.com/cubiclesoft/php-flexforms-modules/blob/master/password-manager/jquery.stoppasswordmanager.js

Relevant source code from the above link:

(function($) {
$.fn.StopPasswordManager = function() {
    return this.each(function() {
        var $this = $(this);

        $this.addClass('no-print');
        $this.attr('data-background-color', $this.css('background-color'));
        $this.css('background-color', $this.css('color'));
        $this.attr('type', 'text');
        $this.attr('autocomplete', 'off');

        $this.focus(function() {
            $this.attr('type', 'password');
            $this.css('background-color', $this.attr('data-background-color'));
        });

        $this.blur(function() {
            $this.css('background-color', $this.css('color'));
            $this.attr('type', 'text');
            $this[0].selectionStart = $this[0].selectionEnd;
        });

        $this.on('keydown', function(e) {
            if (e.keyCode == 13)
            {
                $this.css('background-color', $this.css('color'));
                $this.attr('type', 'text');
                $this[0].selectionStart = $this[0].selectionEnd;
            }
        });
    });
}
}(jQuery));

Demo:

https://barebonescms.com/demos/admin_pack/admin.php

Click "Add Entry" in the menu and then scroll to the bottom of the page to "Module: Stop Password Manager".

Disclaimer: While this approach works for sighted individuals, there might be issues with screen reader software. For example, a screen reader might read the user's password out loud because it sees a plain text field. There might also be other unforeseen consequences of using the above plugin. Altering built-in web browser functionality should be done sparingly with testing a wide variety of conditions and edge cases.

I have been having the same problem. I followed Bruno's advice to you and found that adding a KeyListener just to the "first" button in the JFrame (ie, on the top left) did the trick. But I agree with you it is kind of an unsettling solution. So I fiddled around and discovered a neater way to fix it. Just add the line

myChildOfJFrame.requestFocusInWindow();

to your main method, after you've created your instance of your subclass of JFrame and set it visible.

There are 3 ways to do it.

1. You can directly access HttpContext.Current.Session

2. You can Mock HttpContextBase

3. Create a extension method for HttpContextBase

I prefer 3rd way.This link is good reference.

Get/Set HttpContext Session Methods in BaseController vs Mocking HttpContextBase to create Get/Set methods

user

The maximum total length of a user name is 64 characters.

domain

Maximum of 255 characters in the domain part (the one after the “@”)

However, there is a restriction in RFC 2821 reading:

The maximum total length of a reverse-path or forward-path is 256 characters, including the punctuation and element separators”. Since addresses that don’t fit in those fields are not normally useful, the upper limit on address lengths should normally be considered to be 256, but a path is defined as: Path = “<” [ A-d-l “:” ] Mailbox “>” The forward-path will contain at least a pair of angle brackets in addition to the Mailbox, which limits the email address to 254 characters.

Best and easy way is just pass argument and create instance and call thread method

Call thread using create a thread object and send a runnable class object with parameter or without parameter and start method of thread object.

In my condition I am sending parameter and I will use in run method.

new Thread(new FCMThreadController("2", null, "3", "1")).start();

OR

new Thread(new FCMThreadController()).start();

public class FCMThreadController implements Runnable {
private String type;
private List<UserDeviceModel> devices;
private String message;
private String id;


    public FCMThreadController(String type, List<UserDeviceModel> devices, String message, String id) {

        this.type = type;
        this.devices = devices;
        this.message = message;
        this.id = id;
    }



    public FCMThreadController( ) {

    }

    @Override
    public void run() {
        // TODO Auto-generated method stub

    }



}

By comparing the solution below with the one that uses cumsum of numpy, This one takes almost half the time. This is because it does not need to go through the entire array to do the cumsum and then do all the subtraction. Moreover, the cumsum can be "dangerous" if the array is huge and the number are huge (possible overflow). Of course, also here the danger exists but at least are summed together only the essential numbers.

def moving_average(array_numbers, n):
    if n > len(array_numbers):
      return []
    temp_sum = sum(array_numbers[:n])
    averages = [temp_sum / float(n)]
    for first_index, item in enumerate(array_numbers[n:]):
        temp_sum += item - array_numbers[first_index]
        averages.append(temp_sum / float(n))
    return averages

To immediately flush call fflush(stdout) or fflush(NULL) (NULL means flush everything).

You could also do this if you think it's more clear:

if (columnname != a 
  && columnname != b 
  && columnname != c
{
   if (checkbox.checked || columnname != A2)
   {
      "statement 1"
   }
}

There is a optimized code for case when function needs to equals to empty arrays (and returning false in that case)

const objectsEqual = (o1, o2) => {
    if (o2 === null && o1 !== null) return false;
    return o1 !== null && typeof o1 === 'object' && Object.keys(o1).length > 0 ?
        Object.keys(o1).length === Object.keys(o2).length && 
        Object.keys(o1).every(p => objectsEqual(o1[p], o2[p]))
        : (o1 !== null && Array.isArray(o1) && Array.isArray(o2) && !o1.length && 
        !o2.length) ? true : o1 === o2;
}

Non C++11 solution: With the <ctime> header, you could use strftime. Make sure your buffer is large enough, you wouldn't want to overrun it and wreak havoc later.

#include <iostream>
#include <ctime>

int main ()
{
  time_t rawtime;
  struct tm * timeinfo;
  char buffer[80];

  time (&rawtime);
  timeinfo = localtime(&rawtime);

  strftime(buffer,sizeof(buffer),"%d-%m-%Y %H:%M:%S",timeinfo);
  std::string str(buffer);

  std::cout << str;

  return 0;
}

As @Bruno suggested, using pytest fixtures is another solution that is accessible for both test classes or even just simple test functions. Here's an example testing python2.7 functions:

import pytest

@pytest.fixture(scope='function')
def some_resource(request):
    stuff_i_setup = ["I setup"]

    def some_teardown():
        stuff_i_setup[0] += " ... but now I'm torn down..."
        print stuff_i_setup[0]
    request.addfinalizer(some_teardown)

    return stuff_i_setup[0]

def test_1_that_needs_resource(some_resource):
    print some_resource + "... and now I'm testing things..."

So, running test_1... produces:

I setup... and now I'm testing things...
I setup ... but now I'm torn down...

Notice that stuff_i_setup is referenced in the fixture, allowing that object to be setup and torn down for the test it's interacting with. You can imagine this could be useful for a persistent object, such as a hypothetical database or some connection, that must be cleared before each test runs to keep them isolated.

By design, getRequestURL() gives you the full URL, missing only the query string.

In HttpServletRequest, you can get individual parts of the URI using the methods below:

// Example: http://myhost:8080/people?lastname=Fox&age=30

String uri = request.getScheme() + "://" +   // "http" + "://
             request.getServerName() +       // "myhost"
             ":" +                           // ":"
             request.getServerPort() +       // "8080"
             request.getRequestURI() +       // "/people"
             "?" +                           // "?"
             request.getQueryString();       // "lastname=Fox&age=30"

• .getScheme() will give you "https" if it was a https://domain request.
• .getServerName() gives domain on http(s)://domain.
• .getServerPort() will give you the port.

Use the snippet below:

String uri = request.getScheme() + "://" +
             request.getServerName() + 
             ("http".equals(request.getScheme()) && request.getServerPort() == 80 || "https".equals(request.getScheme()) && request.getServerPort() == 443 ? "" : ":" + request.getServerPort() ) +
             request.getRequestURI() +
            (request.getQueryString() != null ? "?" + request.getQueryString() : "");

This snippet above will get the full URI, hiding the port if the default one was used, and not adding the "?" and the query string if the latter was not provided.

Proxied requests

Note, that if your request passes through a proxy, you need to look at the X-Forwarded-Proto header since the scheme might be altered:

request.getHeader("X-Forwarded-Proto")

Also, a common header is X-Forwarded-For, which show the original request IP instead of the proxys IP.

request.getHeader("X-Forwarded-For")

If you are responsible for the configuration of the proxy/load balancer yourself, you need to ensure that these headers are set upon forwarding.

jQuery UI draggable and droppable are the two plugins I would use to achieve this effect. As for the insertion marker, I would investigate modifying the div (or container) element that was about to have content dropped into it. It should be possible to modify the border in some way or add a JavaScript/jQuery listener that listens for the hover (element about to be dropped) event and modifies the border or adds an image of the insertion marker in the right place.

You can use the Javascript library PDF.JS to display a PDF inside a div. The size of the PDF can be adjusted according to the size of the div. You can also setup event handlers for moving to next / previous pages of the PDF.

You can checkout PDF.JS Tutorial - How to display a PDF with Javascript to see how PDF.JS can be integrated in your HTML code.

Do “chmod +x script”

Now try executing

<style type="text/css">
table {
  border:1px solid black;
}
</style>

An actual JSON request would look like this:

data: '{"command":"on"}',

Where you're sending an actual JSON string. For a more general solution, use JSON.stringify() to serialize an object to JSON, like this:

data: JSON.stringify({ "command": "on" }),

To support older browsers that don't have the JSON object, use json2.js which will add it in.

What's currently happening is since you have processData: false, it's basically sending this: ({"command":"on"}).toString() which is [object Object]...what you see in your request.

1. You are putting there a two-digits year. The first century. And the Gregorian calendar started in the 16th century. I think you should add 2000 to the year.

2. Month in the function new GregorianCalendar(year, month, days) is 0-based. Subtract 1 from the month there.

3. Change the body of the second function as follows:

       String dateFormatted = null;
       SimpleDateFormat fmt = new SimpleDateFormat("dd-MMM-yyyy");
       try {
           dateFormatted = fmt.format(date);
       }
       catch ( IllegalArgumentException e){
           System.out.println(e.getMessage());
       }
       return dateFormatted;
   

After debugging, you'll see that simply GregorianCalendar can't be an argument of the fmt.format();.

Really, nobody needs GregorianCalendar as output, even you are told to return "a string".

Change the header of your format function to

public static String format(final Date date) 

and make the appropriate changes. fmt.format() will take the Date object gladly.

4. Always after an unexpected exception arises, catch it yourself, don't allow the Java machine to do it. This way, you'll understand the problem.

ArrayIndexOutOfBoundsException in simple words is -> you have 10 students in your class (int array size 10) and you want to view the value of the 11th student (a student who does not exist)

if you make this int i[3] then i takes values i[0] i[1] i[2]

for your problem try this code structure

double[] array = new double[50];

    for (int i = 0; i < 24; i++) {

    }

    for (int j = 25; j < 50; j++) {

    }

Sounds like an indexing problem, like Pabla Santa Cruz mentioned. Since your update is not conditional, you can DROP the column and RE-ADD it with a DEFAULT value.

This works for me to reduce select tag's width;

<select id ="Select1" class="input-small">

You can use any one of these classes;

class="input-small"

class="input-medium"

class="input-large"

class="input-xlarge"

class="input-xxlarge"

To backup a single database from the command line, use osql or sqlcmd.

"C:\Program Files\Microsoft SQL Server\90\Tools\Binn\osql.exe" 
    -E -Q "BACKUP DATABASE mydatabase TO DISK='C:\tmp\db.bak' WITH FORMAT"

You'll also want to read the documentation on BACKUP and RESTORE and general procedures.

FWIW, node.js comes with a shell, try typing in:

node-repl

once you've installed node.js to see it in action. It's pretty standard to install rlwrap to get it to work nicely.

If you want to display the image in a Markdown cell then use:

<img src="files/image.png" width="800" height="400">

If you want to display the image in a Code cell then use:

from IPython.display import Image
Image(filename='output1.png',width=800, height=400)

You can do it using the "collapse" directive: http://jsfiddle.net/iscrow/Es4L3/ (check the two "Note" in the HTML).

        <!-- Note: set the initial collapsed state and change it when clicking -->
        <a ng-init="navCollapsed = true" ng-click="navCollapsed = !navCollapsed" class="btn btn-navbar">
           <span class="icon-bar"></span>
           <span class="icon-bar"></span>
           <span class="icon-bar"></span>
        </a>
        <a class="brand" href="#">Title</a>
           <!-- Note: use "collapse" here. The original "data-" settings are not needed anymore. -->
           <div collapse="navCollapsed" class="nav-collapse collapse navbar-responsive-collapse">
              <ul class="nav">

That is, you need to store the collapsed state in a variable, and changing the collapsed also by (simply) changing the value of that variable.

Release 0.14 added a uib- prefix to components:

https://github.com/angular-ui/bootstrap/wiki/Migration-guide-for-prefixes

Change: collapse to uib-collapse.

You can use Request object or Uri object to get host of url.

Using Request.Url

string host = Request.Url.Host;

Using Uri

Uri myUri = new Uri("http://www.contoso.com:8080/");   
string host = myUri.Host;  // host is "www.contoso.com"

You can use Gnu-Parallel to run commands concurrently, works on Windows, Linux/Unix.

parallel ::: "python script1.py" "python script2.py"

You need the change those double quotation marks into singles. ie. if (answer == 'y') returns true;

Here is some info on String Literals in C++: http://msdn.microsoft.com/en-us/library/69ze775t%28VS.80%29.aspx

CONVERT takes the column name, not a string containing the column name; your current expression tries to convert the string A.my_NvarcharColumn to an integer instead of the column content.

SELECT convert (int, N'A.my_NvarcharColumn') FROM A;

should instead be

SELECT convert (int, A.my_NvarcharColumn) FROM A;

Simple SQLfiddle here.

I would like to extend nice answer of Jerome Dalbert. I found very easy to write your own annotation validators in JSR-303 way. You are not limited to have "one field" validation. You can create your own annotation on type level and have complex validation (see examples below). I prefer this way because I don't need mix different types of validation (Spring and JSR-303) like Jerome do. Also this validators are "Spring aware" so you can use @Inject/@Autowire out of box.

Example of custom object validation:

@Target({ TYPE, ANNOTATION_TYPE })
@Retention(RUNTIME)
@Constraint(validatedBy = { YourCustomObjectValidator.class })
public @interface YourCustomObjectValid {

    String message() default "{YourCustomObjectValid.message}";

    Class<?>[] groups() default {};

    Class<? extends Payload>[] payload() default {};
}

public class YourCustomObjectValidator implements ConstraintValidator<YourCustomObjectValid, YourCustomObject> {

    @Override
    public void initialize(YourCustomObjectValid constraintAnnotation) { }

    @Override
    public boolean isValid(YourCustomObject value, ConstraintValidatorContext context) {

        // Validate your complex logic 

        // Mark field with error
        ConstraintViolationBuilder cvb = context.buildConstraintViolationWithTemplate(context.getDefaultConstraintMessageTemplate());
        cvb.addNode(someField).addConstraintViolation();

        return true;
    }
}

@YourCustomObjectValid
public YourCustomObject {
}

Example of generic fields equality:

import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;

import javax.validation.Constraint;
import javax.validation.Payload;

@Target({ TYPE, ANNOTATION_TYPE })
@Retention(RUNTIME)
@Constraint(validatedBy = { FieldsEqualityValidator.class })
public @interface FieldsEquality {

    String message() default "{FieldsEquality.message}";

    Class<?>[] groups() default {};

    Class<? extends Payload>[] payload() default {};

    /**
     * Name of the first field that will be compared.
     * 
     * @return name
     */
    String firstFieldName();

    /**
     * Name of the second field that will be compared.
     * 
     * @return name
     */
    String secondFieldName();

    @Target({ TYPE, ANNOTATION_TYPE })
    @Retention(RUNTIME)
    public @interface List {
        FieldsEquality[] value();
    }
}




import java.lang.reflect.Field;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.ReflectionUtils;

public class FieldsEqualityValidator implements ConstraintValidator<FieldsEquality, Object> {

    private static final Logger log = LoggerFactory.getLogger(FieldsEqualityValidator.class);

    private String firstFieldName;
    private String secondFieldName;

    @Override
    public void initialize(FieldsEquality constraintAnnotation) {
        firstFieldName = constraintAnnotation.firstFieldName();
        secondFieldName = constraintAnnotation.secondFieldName();
    }

    @Override
    public boolean isValid(Object value, ConstraintValidatorContext context) {
        if (value == null)
            return true;

        try {
            Class<?> clazz = value.getClass();

            Field firstField = ReflectionUtils.findField(clazz, firstFieldName);
            firstField.setAccessible(true);
            Object first = firstField.get(value);

            Field secondField = ReflectionUtils.findField(clazz, secondFieldName);
            secondField.setAccessible(true);
            Object second = secondField.get(value);

            if (first != null && second != null && !first.equals(second)) {
                    ConstraintViolationBuilder cvb = context.buildConstraintViolationWithTemplate(context.getDefaultConstraintMessageTemplate());
          cvb.addNode(firstFieldName).addConstraintViolation();

          ConstraintViolationBuilder cvb = context.buildConstraintViolationWithTemplate(context.getDefaultConstraintMessageTemplate());
          cvb.addNode(someField).addConstraintViolation(secondFieldName);

                return false;
            }
        } catch (Exception e) {
            log.error("Cannot validate fileds equality in '" + value + "'!", e);
            return false;
        }

        return true;
    }
}

@FieldsEquality(firstFieldName = "password", secondFieldName = "confirmPassword")
public class NewUserForm {

    private String password;

    private String confirmPassword;

}

In 2018, you can program the "usual" style using async and await in Node.js.

Below is an example, that wraps request callback in a promise and then uses await to get the resolved value.

const request = require('request');

// wrap a request in an promise
function downloadPage(url) {
    return new Promise((resolve, reject) => {
        request(url, (error, response, body) => {
            if (error) reject(error);
            if (response.statusCode != 200) {
                reject('Invalid status code <' + response.statusCode + '>');
            }
            resolve(body);
        });
    });
}

// now to program the "usual" way
// all you need to do is use async functions and await
// for functions returning promises
async function myBackEndLogic() {
    try {
        const html = await downloadPage('https://microsoft.com')
        console.log('SHOULD WORK:');
        console.log(html);

        // try downloading an invalid url
        await downloadPage('http://      .com')
    } catch (error) {
        console.error('ERROR:');
        console.error(error);
    }
}

// run your async function
myBackEndLogic();

Method 1 : Using jQuery Ajax Get call (partial page update).

Suitable for when you need to retrieve jSon data from database.

Controller's Action Method

[HttpGet]
public ActionResult Foo(string id)
{
    var person = Something.GetPersonByID(id);
    return Json(person, JsonRequestBehavior.AllowGet);
}

Jquery GET

function getPerson(id) {
    $.ajax({
        url: '@Url.Action("Foo", "SomeController")',
        type: 'GET',
        dataType: 'json',
        // we set cache: false because GET requests are often cached by browsers
        // IE is particularly aggressive in that respect
        cache: false,
        data: { id: id },
        success: function(person) {
            $('#FirstName').val(person.FirstName);
            $('#LastName').val(person.LastName);
        }
    });
}

Person class

public class Person
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
}

Method 2 : Using jQuery Ajax Post call (partial page update).

Suitable for when you need to do partial page post data into database.

Post method is also same like above just replace [HttpPost] on Action method and type as post for jquery method.

For more information check Posting JSON Data to MVC Controllers Here

Method 3 : As a Form post scenario (full page update).

Suitable for when you need to save or update data into database.

View

@using (Html.BeginForm("SaveData","ControllerName", FormMethod.Post))
{        
    @Html.TextBoxFor(model => m.Text)
    
    <input type="submit" value="Save" />
}

Action Method

[HttpPost]
public ActionResult SaveData(FormCollection form)
    {
        // Get movie to update
        return View();
   }

Method 4 : As a Form Get scenario (full page update).

Suitable for when you need to Get data from database

Get method also same like above just replace [HttpGet] on Action method and FormMethod.Get for View's form method.

I hope this will help to you.

If you check the Integer class you will find that valueof call parseInt method. The big difference is caching when you call valueof API . It cache if the value is between -128 to 127 Please find below the link for more information

http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html

Tested libraries like Imagemagick and GD are available for .NET

You could also read up on things like bicubic interpolation and write your own.

The following solution will work with sql server 2005 and above. You can use output to get the required field. inplace of id you can write your key that you want to return. do it like this

FOR SQL SERVER 2005 and above

    using(SqlCommand cmd=new SqlCommand("INSERT INTO Mem_Basic(Mem_Na,Mem_Occ) output INSERTED.ID VALUES(@na,@occ)",con))
    {
        cmd.Parameters.AddWithValue("@na", Mem_NA);
        cmd.Parameters.AddWithValue("@occ", Mem_Occ);
        con.Open();

        int modified =(int)cmd.ExecuteScalar();

        if (con.State == System.Data.ConnectionState.Open) 
            con.Close();

        return modified;
    }
}

FOR previous versions

    using(SqlCommand cmd=new SqlCommand("INSERT INTO Mem_Basic(Mem_Na,Mem_Occ)  VALUES(@na,@occ);SELECT SCOPE_IDENTITY();",con))
    {
        cmd.Parameters.AddWithValue("@na", Mem_NA);
        cmd.Parameters.AddWithValue("@occ", Mem_Occ);
        con.Open();

        int modified = Convert.ToInt32(cmd.ExecuteScalar());

        if (con.State == System.Data.ConnectionState.Open) con.Close();
            return modified;
    }
}

I pointed the non-www to 54.243.64.13 and the www.domain.com to the alias.herokuapp.com and all worked nicely.

Found the IP only after pointing www.domain.com and then running the dig command on the www.domain.com and it showed:

;; ANSWER SECTION:
www.domain.com. 14400  IN      CNAME   aliasat.herokuapp.com.
aliasat.herokuapp.com. 300 IN CNAME us-east-1-a.route.herokuapp.com.
us-east-1-a.route.herokuapp.com. 60 IN  A       54.235.186.37

;; AUTHORITY SECTION:
herokuapp.com.          900     IN      NS      ns-1378.awsdns-44.org.
herokuapp.com.          900     IN      NS      ns-1624.awsdns-11.co.uk.
herokuapp.com.          900     IN      NS      ns-505.awsdns-63.com.
herokuapp.com.          900     IN      NS      ns-662.awsdns-18.net.

May not be ideal but worked.

Step 1

yarn add @angular/material @angular/cdk @angular/animations

Step 2 - Create a new file( /myApp/src/app/material.module.ts ) that includes all the material UI modules (there is no shortcut, you have to include individual modules one by one)

import { NgModule } from '@angular/core';

    import {
      MatButtonModule,
      MatMenuModule,
      MatToolbarModule,
      MatIconModule,
      MatCardModule
    } from '@angular/material';

    @NgModule({
      imports: [
        MatButtonModule,
        MatMenuModule,
        MatToolbarModule,
        MatIconModule,
        MatCardModule
      ],
      exports: [
        MatButtonModule,
        MatMenuModule,
        MatToolbarModule,
        MatIconModule,
        MatCardModule
      ]
    })
    export class MaterialModule {}

Step 3 - Import and add that newly created module to your app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import { MaterialModule } from './material.module'; // material module imported

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    MaterialModule // MAteria module added
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

I used this:

                              myElement = document.getElemenById("xyz");
Get_Offset_From_Start       ( myElement );  // returns positions from website's start position
Get_Offset_From_CurrentView ( myElement );  // returns positions from current scrolled view's TOP and LEFT

code:

function Get_Offset_From_Start (object, offset) { 
    offset = offset || {x : 0, y : 0};
    offset.x += object.offsetLeft;       offset.y += object.offsetTop;
    if(object.offsetParent) {
        offset = Get_Offset_From_Start (object.offsetParent, offset);
    }
    return offset;
}

function Get_Offset_From_CurrentView (myElement) {
    if (!myElement) return;
    var offset = Get_Offset_From_Start (myElement);
    var scrolled = GetScrolled (myElement.parentNode);
    var posX = offset.x - scrolled.x;   var posY = offset.y - scrolled.y;
    return {lefttt: posX , toppp: posY };
}
//helper
function GetScrolled (object, scrolled) {
    scrolled = scrolled || {x : 0, y : 0};
    scrolled.x += object.scrollLeft;    scrolled.y += object.scrollTop;
    if (object.tagName.toLowerCase () != "html" && object.parentNode) { scrolled=GetScrolled (object.parentNode, scrolled); }
    return scrolled;
}

    /*
    // live monitoring
    window.addEventListener('scroll', function (evt) {
        var Positionsss =  Get_Offset_From_CurrentView(myElement);  
        console.log(Positionsss);
    });
    */

I've been using this line to launch the default browser:

System.Diagnostics.Process.Start("http://www.google.com"); 

Take a look here in order to get started: http://instagram.com/developer/

and then in order to retrieve pictures by tag, look here: http://instagram.com/developer/endpoints/tags/

Getting tags from Instagram doesn't require OAuth, so you can make the calls via these URLs:

GET IMAGES https://api.instagram.com/v1/tags/{tag-name}/media/recent?access_token={TOKEN}

SEARCH https://api.instagram.com/v1/tags/search?q={tag-query}&access_token={TOKEN}

TAG INFO https://api.instagram.com/v1/tags/{tag-name}?access_token={TOKEN}

Here's a dplyr option:

library(dplyr)

# across all columns:
df %>% filter_all(any_vars(. %in% c('M017', 'M018')))

# or in only select columns:
df %>% filter_at(vars(col1, col2), any_vars(. %in% c('M017', 'M018')))                                                                                                     

You are creating those bytes objects yourself:

item['title'] = [t.encode('utf-8') for t in title]
item['link'] = [l.encode('utf-8') for l in link]
item['desc'] = [d.encode('utf-8') for d in desc]
items.append(item)

Each of those t.encode(), l.encode() and d.encode() calls creates a bytes string. Do not do this, leave it to the JSON format to serialise these.

Next, you are making several other errors; you are encoding too much where there is no need to. Leave it to the json module and the standard file object returned by the open() call to handle encoding.

You also don't need to convert your items list to a dictionary; it'll already be an object that can be JSON encoded directly:

class W3SchoolPipeline(object):    
    def __init__(self):
        self.file = open('w3school_data_utf8.json', 'w', encoding='utf-8')

    def process_item(self, item, spider):
        line = json.dumps(item) + '\n'
        self.file.write(line)
        return item

I'm guessing you followed a tutorial that assumed Python 2, you are using Python 3 instead. I strongly suggest you find a different tutorial; not only is it written for an outdated version of Python, if it is advocating line.decode('unicode_escape') it is teaching some extremely bad habits that'll lead to hard-to-track bugs. I can recommend you look at Think Python, 2nd edition for a good, free, book on learning Python 3.

This is helpfull, its work for me..

$('.bd-example-modal-sm').on('hidden.bs.modal', function () { 
      $(this).find("select").val('').end(); // Clear dropdown content
      $("ul").empty();   // Clear li content 
});

Array.Clone() would perform technically deep copy, when pass the array of int or string to a method as a reference.

For example

int[] numbers = new int[] { -11, 12, -42, 0, 1, 90, 68, 6, -9 }; 

SortByAscending(numbers); // Sort the array in ascending order by clone the numbers array to local new array.
SortByDescending(numbers); // Same as Ascending order Clone

Even if the methods sort the array of numbers but it wont affect the actual reference passed to the sorting methods.i.e the number array will be in same unsorted initial format in line no 1.

Note: The Clone should be done in the sorting methods.

I tried the below solution and it work fine for me.

/\(?([0-9]{3})\)?([ .-]?)([0-9]{3})\2([0-9]{4})/

Tried below phone format:

• +(123) 456 7899
• (123) 456 7899
• (123).456.7899
• (123)-456-7899
• 123-456-7899
• 123 456 7899
• 1234567899

First, Hungarian Notation is the practice of using a prefix to display a parameter's data type or intended use. Microsoft's naming conventions for says no to Hungarian Notation http://en.wikipedia.org/wiki/Hungarian_notation http://msdn.microsoft.com/en-us/library/ms229045.aspx

Using UPPERCASE is not encouraged as stated here: Pascal Case is the acceptable convention and SCREAMING CAPS. http://en.wikibooks.org/wiki/C_Sharp_Programming/Naming

Microsoft also states here that UPPERCASE can be used if it is done to match the the existed scheme. http://msdn.microsoft.com/en-us/library/x2dbyw72.aspx

This pretty much sums it up.

I stumbled across the issue now, too. The application defined a pure virtual interface class and a user-defined class provided through a shared lib was supposed to implement the interface. When linking the application, the linker complained that the shared lib would not provide vtable and type_info for the base class, nor could they be found anywhere else. Turned out that I simply forgot to make one of the interface's methods pure virtual (i.e. omitted the " = 0" at the end of the declaration. Very rudimentary, still easy to overlook and puzzling if you can't connect the linker diagnostic to the root cause.

Yes. If you have installed sp_who2k5 into your master database, you can simply run:

sp_who2k5 1,1

The resultset will include all the active transactions. The currently running backup(s) will contain the string "BACKUP" in the requestCommand field. The aptly named percentComplete field will give you the progress of the backup.

Note: sp_who2k5 should be a part of everyone's toolkit, it does a lot more than just this.

I got here looking for the same thing and I found another solution. If you guys are interested I share this class:

using System;
using System.Management;
using System.Security.Cryptography;
using System.Security;
using System.Collections;
using System.Text;
namespace Security
{
    /// <summary>
    /// Generates a 16 byte Unique Identification code of a computer
    /// Example: 4876-8DB5-EE85-69D3-FE52-8CF7-395D-2EA9
    /// </summary>
    public class FingerPrint  
    {
        private static string fingerPrint = string.Empty;
        public static string Value()
        {
            if (string.IsNullOrEmpty(fingerPrint))
            {
                fingerPrint = GetHash("CPU >> " + cpuId() + "\nBIOS >> " + 
            biosId() + "\nBASE >> " + baseId() +
                            //"\nDISK >> "+ diskId() + "\nVIDEO >> " + 
            videoId() +"\nMAC >> "+ macId()
                                     );
            }
            return fingerPrint;
        }
        private static string GetHash(string s)
        {
            MD5 sec = new MD5CryptoServiceProvider();
            ASCIIEncoding enc = new ASCIIEncoding();
            byte[] bt = enc.GetBytes(s);
            return GetHexString(sec.ComputeHash(bt));
        }
        private static string GetHexString(byte[] bt)
        {
            string s = string.Empty;
            for (int i = 0; i < bt.Length; i++)
            {
                byte b = bt[i];
                int n, n1, n2;
                n = (int)b;
                n1 = n & 15;
                n2 = (n >> 4) & 15;
                if (n2 > 9)
                    s += ((char)(n2 - 10 + (int)'A')).ToString();
                else
                    s += n2.ToString();
                if (n1 > 9)
                    s += ((char)(n1 - 10 + (int)'A')).ToString();
                else
                    s += n1.ToString();
                if ((i + 1) != bt.Length && (i + 1) % 2 == 0) s += "-";
            }
            return s;
        }
        #region Original Device ID Getting Code
        //Return a hardware identifier
        private static string identifier
        (string wmiClass, string wmiProperty, string wmiMustBeTrue)
        {
            string result = "";
            System.Management.ManagementClass mc = 
        new System.Management.ManagementClass(wmiClass);
            System.Management.ManagementObjectCollection moc = mc.GetInstances();
            foreach (System.Management.ManagementObject mo in moc)
            {
                if (mo[wmiMustBeTrue].ToString() == "True")
                {
                    //Only get the first one
                    if (result == "")
                    {
                        try
                        {
                            result = mo[wmiProperty].ToString();
                            break;
                        }
                        catch
                        {
                        }
                    }
                }
            }
            return result;
        }
        //Return a hardware identifier
        private static string identifier(string wmiClass, string wmiProperty)
        {
            string result = "";
            System.Management.ManagementClass mc = 
        new System.Management.ManagementClass(wmiClass);
            System.Management.ManagementObjectCollection moc = mc.GetInstances();
            foreach (System.Management.ManagementObject mo in moc)
            {
                //Only get the first one
                if (result == "")
                {
                    try
                    {
                        result = mo[wmiProperty].ToString();
                        break;
                    }
                    catch
                    {
                    }
                }
            }
            return result;
        }
        private static string cpuId()
        {
            //Uses first CPU identifier available in order of preference
            //Don't get all identifiers, as it is very time consuming
            string retVal = identifier("Win32_Processor", "UniqueId");
            if (retVal == "") //If no UniqueID, use ProcessorID
            {
                retVal = identifier("Win32_Processor", "ProcessorId");
                if (retVal == "") //If no ProcessorId, use Name
                {
                    retVal = identifier("Win32_Processor", "Name");
                    if (retVal == "") //If no Name, use Manufacturer
                    {
                        retVal = identifier("Win32_Processor", "Manufacturer");
                    }
                    //Add clock speed for extra security
                    retVal += identifier("Win32_Processor", "MaxClockSpeed");
                }
            }
            return retVal;
        }
        //BIOS Identifier
        private static string biosId()
        {
            return identifier("Win32_BIOS", "Manufacturer")
            + identifier("Win32_BIOS", "SMBIOSBIOSVersion")
            + identifier("Win32_BIOS", "IdentificationCode")
            + identifier("Win32_BIOS", "SerialNumber")
            + identifier("Win32_BIOS", "ReleaseDate")
            + identifier("Win32_BIOS", "Version");
        }
        //Main physical hard drive ID
        private static string diskId()
        {
            return identifier("Win32_DiskDrive", "Model")
            + identifier("Win32_DiskDrive", "Manufacturer")
            + identifier("Win32_DiskDrive", "Signature")
            + identifier("Win32_DiskDrive", "TotalHeads");
        }
        //Motherboard ID
        private static string baseId()
        {
            return identifier("Win32_BaseBoard", "Model")
            + identifier("Win32_BaseBoard", "Manufacturer")
            + identifier("Win32_BaseBoard", "Name")
            + identifier("Win32_BaseBoard", "SerialNumber");
        }
        //Primary video controller ID
        private static string videoId()
        {
            return identifier("Win32_VideoController", "DriverVersion")
            + identifier("Win32_VideoController", "Name");
        }
        //First enabled network card ID
        private static string macId()
        {
            return identifier("Win32_NetworkAdapterConfiguration", 
                "MACAddress", "IPEnabled");
        }
        #endregion
    }
}

I won't take any credit for this because I found it here It worked faster than I expected for me. Without the graphic card, mac and drive id's I got the unique ID in about 2-3 seconds. With those above included I got it in about 4-5 seconds.

Note: Add reference to System.Management.

Interestingly enough, importing os.path will import all of os. try the following in the interactive prompt:

import os.path
dir(os)

The result will be the same as if you just imported os. This is because os.path will refer to a different module based on which operating system you have, so python will import os to determine which module to load for path.

reference

With some modules, saying import foo will not expose foo.bar, so I guess it really depends the design of the specific module.

In general, just importing the explicit modules you need should be marginally faster. On my machine:

import os.path: 7.54285810068e-06 seconds

import os: 9.21904878972e-06 seconds

These times are close enough to be fairly negligible. Your program may need to use other modules from os either now or at a later time, so usually it makes sense just to sacrifice the two microseconds and use import os to avoid this error at a later time. I usually side with just importing os as a whole, but can see why some would prefer import os.path to technically be more efficient and convey to readers of the code that that is the only part of the os module that will need to be used. It essentially boils down to a style question in my mind.

Working with large models were very slow before the SP1, (have not tried it after the SP1, but it is said that is a snap now).

I still Design my tables first, then an in-house built tool generates the POCOs for me, so it takes the burden of doing repetitive tasks for each poco object.

when you are using source control systems, you can easily follow the history of your POCOs, it is not that easy with designer generated code.

I have a base for my POCO, which makes a lot of things quite easy.

I have views for all of my tables, each base view brings basic info for my foreign keys and my view POCOs derive from my POCO classes, which is quite usefull again.

And finally I dont like designers.

The following command worked for me using the command prompt (As an Administrator) in Windows:

mysqlcheck -u root -p -A --auto-repair

Run mysqlcheck with the root user, prompt for a password, check all databases, and auto-repair any corrupted tables.

if(getResult.Key.Equals(default(T)) && getResult.Value.Equals(default(U)))

grep command can be used

CA = mydata[grep("CA", mydata$sCode, ]

nrow(CA)

You can also read up on the ILIKE keyword. It can be quite useful at times, albeit it does not conform to the SQL standard. See here for more information: http://www.postgresql.org/docs/9.2/static/functions-matching.html

You can use default.

public void OptionalParameters(int requerid, int optinal = default){}

I find the following link quite useful

http://blog.hubspot.com/marketing/calendar-invites-ical-outlook-google

My issue was that eclipse could not find the mvn.bat file within the installation directory. The solution is to create a mvn.bat file with the following code:

"%~dp0\mvn.cmd" %*

Save that file. Place it inside the [Maven Installation Folder]\bin directory.

9.5 and newer:

PostgreSQL 9.5 and newer support INSERT ... ON CONFLICT (key) DO UPDATE (and ON CONFLICT (key) DO NOTHING), i.e. upsert.

Comparison with ON DUPLICATE KEY UPDATE.

Quick explanation.

For usage see the manual - specifically the conflict_action clause in the syntax diagram, and the explanatory text.

Unlike the solutions for 9.4 and older that are given below, this feature works with multiple conflicting rows and it doesn't require exclusive locking or a retry loop.

The commit adding the feature is here and the discussion around its development is here.

If you're on 9.5 and don't need to be backward-compatible you can stop reading now.

9.4 and older:

PostgreSQL doesn't have any built-in UPSERT (or MERGE) facility, and doing it efficiently in the face of concurrent use is very difficult.

This article discusses the problem in useful detail.

In general you must choose between two options:

• Individual insert/update operations in a retry loop; or
• Locking the table and doing batch merge

Individual row retry loop

Using individual row upserts in a retry loop is the reasonable option if you want many connections concurrently trying to perform inserts.

The PostgreSQL documentation contains a useful procedure that'll let you do this in a loop inside the database. It guards against lost updates and insert races, unlike most naive solutions. It will only work in READ COMMITTED mode and is only safe if it's the only thing you do in the transaction, though. The function won't work correctly if triggers or secondary unique keys cause unique violations.

This strategy is very inefficient. Whenever practical you should queue up work and do a bulk upsert as described below instead.

Many attempted solutions to this problem fail to consider rollbacks, so they result in incomplete updates. Two transactions race with each other; one of them successfully INSERTs; the other gets a duplicate key error and does an UPDATE instead. The UPDATE blocks waiting for the INSERT to rollback or commit. When it rolls back, the UPDATE condition re-check matches zero rows, so even though the UPDATE commits it hasn't actually done the upsert you expected. You have to check the result row counts and re-try where necessary.

Some attempted solutions also fail to consider SELECT races. If you try the obvious and simple:

-- THIS IS WRONG. DO NOT COPY IT. It's an EXAMPLE.

BEGIN;

UPDATE testtable
SET somedata = 'blah'
WHERE id = 2;

-- Remember, this is WRONG. Do NOT COPY IT.

INSERT INTO testtable (id, somedata)
SELECT 2, 'blah'
WHERE NOT EXISTS (SELECT 1 FROM testtable WHERE testtable.id = 2);

COMMIT;

then when two run at once there are several failure modes. One is the already discussed issue with an update re-check. Another is where both UPDATE at the same time, matching zero rows and continuing. Then they both do the EXISTS test, which happens before the INSERT. Both get zero rows, so both do the INSERT. One fails with a duplicate key error.

This is why you need a re-try loop. You might think that you can prevent duplicate key errors or lost updates with clever SQL, but you can't. You need to check row counts or handle duplicate key errors (depending on the chosen approach) and re-try.

Please don't roll your own solution for this. Like with message queuing, it's probably wrong.

Bulk upsert with lock

Sometimes you want to do a bulk upsert, where you have a new data set that you want to merge into an older existing data set. This is vastly more efficient than individual row upserts and should be preferred whenever practical.

In this case, you typically follow the following process:

• CREATE a TEMPORARY table

• COPY or bulk-insert the new data into the temp table

• LOCK the target table IN EXCLUSIVE MODE. This permits other transactions to SELECT, but not make any changes to the table.

• Do an UPDATE ... FROM of existing records using the values in the temp table;

• Do an INSERT of rows that don't already exist in the target table;

• COMMIT, releasing the lock.

For example, for the example given in the question, using multi-valued INSERT to populate the temp table:

BEGIN;

CREATE TEMPORARY TABLE newvals(id integer, somedata text);

INSERT INTO newvals(id, somedata) VALUES (2, 'Joe'), (3, 'Alan');

LOCK TABLE testtable IN EXCLUSIVE MODE;

UPDATE testtable
SET somedata = newvals.somedata
FROM newvals
WHERE newvals.id = testtable.id;

INSERT INTO testtable
SELECT newvals.id, newvals.somedata
FROM newvals
LEFT OUTER JOIN testtable ON (testtable.id = newvals.id)
WHERE testtable.id IS NULL;

COMMIT;

Related reading

• UPSERT wiki page
• UPSERTisms in Postgres
• Insert, on duplicate update in PostgreSQL?
• http://petereisentraut.blogspot.com/2010/05/merge-syntax.html
• Upsert with a transaction
• Is SELECT or INSERT in a function prone to race conditions?
• SQL MERGE on the PostgreSQL wiki
• Most idiomatic way to implement UPSERT in Postgresql nowadays

What about MERGE?

SQL-standard MERGE actually has poorly defined concurrency semantics and is not suitable for upserting without locking a table first.

It's a really useful OLAP statement for data merging, but it's not actually a useful solution for concurrency-safe upsert. There's lots of advice to people using other DBMSes to use MERGE for upserts, but it's actually wrong.

Other DBs:

• INSERT ... ON DUPLICATE KEY UPDATE in MySQL
• MERGE from MS SQL Server (but see above about MERGE problems)
• MERGE from Oracle (but see above about MERGE problems)

Simple working solution:

Go here https://hub.docker.com/ to create a PRIVATE repository with name for example johnsmith/private-repository this is the NAME/REPOSITORY you will use for your image when building the image.

• First, docker login

• Second, I use "docker build -t johnsmith/private-repository:01 ." (where 01 is my version name) to create image, and I use "docker images" to confirm the image created such as in this yellow box below: (sorry I can not paste the table format but the text string only)

johnsmith/private-repository(REPOSITORY) 01(TAG) c5f4a2861d6e(IMAGE ID) 2 days ago(CREATED) 305MB(SIZE)

• Third, I use docker push johnsmith/private-repository:01 (Your private repo will be here example https://hub.docker.com/r/johnsmith/private-repository/)

Done!

The documentation on counting says that for group_by queries it is better to use func.count():

from sqlalchemy import func
session.query(Table.column, func.count(Table.column)).group_by(Table.column).all()

I just wrote a blog post on saving an object's data to Binary, XML, or Json. It sounds like you probably want to use Binary serialization, but perhaps you want the files to be edited outside of your app, in which case XML or Json might be better. Here are the functions to do it in the various formats. See my blog post for more details.

Binary

/// <summary>
/// Writes the given object instance to a binary file.
/// <para>Object type (and all child types) must be decorated with the [Serializable] attribute.</para>
/// <para>To prevent a variable from being serialized, decorate it with the [NonSerialized] attribute; cannot be applied to properties.</para>
/// </summary>
/// <typeparam name="T">The type of object being written to the XML file.</typeparam>
/// <param name="filePath">The file path to write the object instance to.</param>
/// <param name="objectToWrite">The object instance to write to the XML file.</param>
/// <param name="append">If false the file will be overwritten if it already exists. If true the contents will be appended to the file.</param>
public static void WriteToBinaryFile<T>(string filePath, T objectToWrite, bool append = false)
{
    using (Stream stream = File.Open(filePath, append ? FileMode.Append : FileMode.Create))
    {
        var binaryFormatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
        binaryFormatter.Serialize(stream, objectToWrite);
    }
}

/// <summary>
/// Reads an object instance from a binary file.
/// </summary>
/// <typeparam name="T">The type of object to read from the XML.</typeparam>
/// <param name="filePath">The file path to read the object instance from.</param>
/// <returns>Returns a new instance of the object read from the binary file.</returns>
public static T ReadFromBinaryFile<T>(string filePath)
{
    using (Stream stream = File.Open(filePath, FileMode.Open))
    {
        var binaryFormatter = new System.Runtime.Serialization.Formatters.Binary.BinaryFormatter();
        return (T)binaryFormatter.Deserialize(stream);
    }
}

XML

Requires the System.Xml assembly to be included in your project.

/// <summary>
/// Writes the given object instance to an XML file.
/// <para>Only Public properties and variables will be written to the file. These can be any type though, even other classes.</para>
/// <para>If there are public properties/variables that you do not want written to the file, decorate them with the [XmlIgnore] attribute.</para>
/// <para>Object type must have a parameterless constructor.</para>
/// </summary>
/// <typeparam name="T">The type of object being written to the file.</typeparam>
/// <param name="filePath">The file path to write the object instance to.</param>
/// <param name="objectToWrite">The object instance to write to the file.</param>
/// <param name="append">If false the file will be overwritten if it already exists. If true the contents will be appended to the file.</param>
public static void WriteToXmlFile<T>(string filePath, T objectToWrite, bool append = false) where T : new()
{
    TextWriter writer = null;
    try
    {
        var serializer = new XmlSerializer(typeof(T));
        writer = new StreamWriter(filePath, append);
        serializer.Serialize(writer, objectToWrite);
    }
    finally
    {
        if (writer != null)
            writer.Close();
    }
}

/// <summary>
/// Reads an object instance from an XML file.
/// <para>Object type must have a parameterless constructor.</para>
/// </summary>
/// <typeparam name="T">The type of object to read from the file.</typeparam>
/// <param name="filePath">The file path to read the object instance from.</param>
/// <returns>Returns a new instance of the object read from the XML file.</returns>
public static T ReadFromXmlFile<T>(string filePath) where T : new()
{
    TextReader reader = null;
    try
    {
        var serializer = new XmlSerializer(typeof(T));
        reader = new StreamReader(filePath);
        return (T)serializer.Deserialize(reader);
    }
    finally
    {
        if (reader != null)
            reader.Close();
    }
}

Json

You must include a reference to Newtonsoft.Json assembly, which can be obtained from the Json.NET NuGet Package.

/// <summary>
/// Writes the given object instance to a Json file.
/// <para>Object type must have a parameterless constructor.</para>
/// <para>Only Public properties and variables will be written to the file. These can be any type though, even other classes.</para>
/// <para>If there are public properties/variables that you do not want written to the file, decorate them with the [JsonIgnore] attribute.</para>
/// </summary>
/// <typeparam name="T">The type of object being written to the file.</typeparam>
/// <param name="filePath">The file path to write the object instance to.</param>
/// <param name="objectToWrite">The object instance to write to the file.</param>
/// <param name="append">If false the file will be overwritten if it already exists. If true the contents will be appended to the file.</param>
public static void WriteToJsonFile<T>(string filePath, T objectToWrite, bool append = false) where T : new()
{
    TextWriter writer = null;
    try
    {
        var contentsToWriteToFile = JsonConvert.SerializeObject(objectToWrite);
        writer = new StreamWriter(filePath, append);
        writer.Write(contentsToWriteToFile);
    }
    finally
    {
        if (writer != null)
            writer.Close();
    }
}

/// <summary>
/// Reads an object instance from an Json file.
/// <para>Object type must have a parameterless constructor.</para>
/// </summary>
/// <typeparam name="T">The type of object to read from the file.</typeparam>
/// <param name="filePath">The file path to read the object instance from.</param>
/// <returns>Returns a new instance of the object read from the Json file.</returns>
public static T ReadFromJsonFile<T>(string filePath) where T : new()
{
    TextReader reader = null;
    try
    {
        reader = new StreamReader(filePath);
        var fileContents = reader.ReadToEnd();
        return JsonConvert.DeserializeObject<T>(fileContents);
    }
    finally
    {
        if (reader != null)
            reader.Close();
    }
}

Example

// To save the characterSheet variable contents to a file.
WriteToBinaryFile<CharacterSheet>("C:\CharacterSheet.pfcsheet", characterSheet);

// To load the file contents back into a variable.
CharacterSheet characterSheet = ReadFromBinaryFile<CharacterSheet>("C:\CharacterSheet.pfcsheet");

In my case, all the compile statements has somehow arranged in a single line. separating them in individual lines has fixed the issue.

I don't yet have a large enough reputation score to add a comment where it would be most helpful, but this is in relation to those asking about a .Net 4.5 solution.

You can use the mouse X and Y co-ordinates and the ListView method GetItemAt to find the item which has been clicked on.

private void ListView_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
    ListViewItem item = myListView.GetItemAt(e.X, e.Y)
    // Do something here
}

One can access each element of an array separately using the following code:

Object o=...;
if ( o.getClass().isArray() ) {
    for(int i=0; i<Array.getLength(o); i++){
        System.out.println(Array.get(o, i));
    }
}

Notice that it is unnecessary to know what kind of underlying array it is, as this will work for any array.

Is this what you mean?

SELECT DISTINCT C.valueC
FROM 
C
INNER JOIN B ON C.id = B.lookupC
INNER JOIN A ON B.id = A.lookupB

You can set it on the command line via JVM parameters:

java -Duser.country=CA -Duser.language=fr ... com.x.Main

For further information look at Internationalization: Understanding Locale in the Java Platform - Using Locale

Problem was installing iis manager after .net framework aspnet_regiis had run. Run run aspnet_regiis from x64 .net framework directory

aspnet_regiis -iru // From x64 .net framework directory

IIS Manager can't configure .NET Compilation on .NET 4 Applications

I wouldnt use this attribute as most browsers ignore it as CMS points out.

By all means use client side validation but only in conjunction with server side. Any client side validation can be got round.

Slightly off topic but some people check the content type to validate the uploaded file. You need to be careful about this as an attacker can easily change it and upload a php file for example. See the example at: http://www.scanit.be/uploads/php-file-upload.pdf

Adding on to Josh's answer,

SELECT COUNT(CASE WHEN myColumn=1 THEN AD_CurrentView.PrimaryKeyColumn ELSE NULL END)
FROM AD_CurrentView

Worked well for me (in SQL Server 2012) without changing the 'count' to a 'sum' and the same logic is portable to other 'conditional aggregates'. E.g., summing based on a condition:

SELECT SUM(CASE WHEN myColumn=1 THEN AD_CurrentView.NumberColumn ELSE 0 END)
FROM AD_CurrentView

d = DateTime.now.utc

Oops!

That seems to work in Rails, but not vanilla Ruby (and of course that is what the question is asking)

d = Time.now.utc

Does work however.

Is there any reason you need to use DateTime and not Time? Time should include everything you need:

irb(main):016:0> Time.now
=> Thu Apr 16 12:40:44 +0100 2009

If no other process is using the port 8080, Eventhough eclipse shows the port 8080 is used while starting the server in eclipse, first you have to stop the server by hitting the stop button in "Configure Tomcat"(which you can find in your start menu under tomcat folder), then try to start the server in eclipse then it will be started.

If any other process is using the port 8080 and as well as you no need to disturb it. then you can change the port.

ES2018 introduced regex capture groups which you can use to catch day, month and year:

const REGEX = /(?<year>[0-9]{4})-(?<month>[0-9]{2})-(?<day>[0-9]{2});
const results = REGEX.exec('2018-07-12');
console.log(results.groups.year);
console.log(results.groups.month);
console.log(results.groups.day);

Advantage of this approach is possiblity to catch day, month, year for non-standard string date formats.

Ref. https://www.freecodecamp.org/news/es9-javascripts-state-of-art-in-2018-9a350643f29c/

You can use int casting which allows the base specification.

int(b, 2)  # Convert a binary string to a decimal int.

For VS 2015 & VS 2017: Right-click the IIS Express system tray icon (when running the application), and select "Show all applications":

Then, select the relevant application and click the applicationhost.config file path:

My Problem: "please select Android SDK", But everything is okey :( -> I think one of IntelliJ file was crashed (after blue screen of death)

My resolution:

File -> Settings -> Android SDK -> Android SDK Location Edit -> Next, Next (Android SDK is up to date.), Finished

... and crashed file was repaired!

You can also try dropping the index column if it is not needed to compare:

print(df1.reset_index(drop=True) == df2.reset_index(drop=True))

I have used this same technique in a unit test like so:

from pandas.util.testing import assert_frame_equal

assert_frame_equal(actual.reset_index(drop=True), expected.reset_index(drop=True))

The whole thing to em is, that the size is relative to the base. So I would say you could keep the font sizes by altering the base.

Example: If you base is 16px, and p is .75em (which is 12px) you would have to raise the base to about 20px. In this case p would then equal about 15px which is the minimum I personally require for mobile phones.

The document and window are different objects and they have some different events. Using addEventListener() on them listens to events destined for a different object. You should use the one that actually has the event you are interested in.

For example, there is a "resize" event on the window object that is not on the document object.

For example, the "DOMContentLoaded" event is only on the document object.

So basically, you need to know which object receives the event you are interested in and use .addEventListener() on that particular object.

Here's an interesting chart that shows which types of objects create which types of events: https://developer.mozilla.org/en-US/docs/DOM/DOM_event_reference

If you are listening to a propagated event (such as the click event), then you can listen for that event on either the document object or the window object. The only main difference for propagated events is in timing. The event will hit the document object before the window object since it occurs first in the hierarchy, but that difference is usually immaterial so you can pick either. I find it generally better to pick the closest object to the source of the event that meets your needs when handling propagated events. That would suggest that you pick document over window when either will work. But, I'd often move even closer to the source and use document.body or even some closer common parent in the document (if possible).

I have used SVN for a long time, but whenever I used Git, I felt that Git is much powerful, lightweight, and although a little bit of learning curve involved but is better than SVN.

What I have noted is that each SVN project, as it grows, becomes a very big size project unless it is exported. Where as, GIT project (along with Git data) is very light weight in size.

In SVN, I've dealt with developers from novice to experts, and the novices and intermediates seem to introduce File conflicts if they copy one folder from another SVN project in order to re-use it. Whereas, I think in Git, you just copy the folder and it works, because Git doesn't introduce .git folders in all its subfolders (as SVN does).

After dealing alot with SVN since long time, I'm finally thinking to move my developers and me to Git, since it is easy to collaborate and merge work, as well as one great advantage is that a local copy's changes can be committed as much desired, and then finally pushed to the branch on server in one go, unlike SVN (where we have to commit the changes from time to time in the repository on server).

Anyone who can help me decide if I should really go with Git?

I am trying to explain by putting problem statement and solution to it. I hope it will help

Problem Statement:

Find all the published products, whose name like ABC Product or PQR Product, and price should be less than 15/-

Solution:

Below are the conditions that need to be taken care of

1. Product price should be less than 15
2. Product name should be either ABC Product or PQR Product
3. Product should be in published state.

Below is the statement that applies above criterion to create query and fetch data.

$elements = $collection->find(
             Array(
                [price] => Array( [$lt] => 15 ),
                [$or] => Array(
                            [0]=>Array(
                                    [product_name]=>Array(
                                       [$in]=>Array(
                                            [0] => ABC Product,
                                            [1]=> PQR Product
                                            )
                                        )
                                    )
                                ),
                [state]=>Published
                )
            );

simple way you can do this by adding this css So, you just added this to CSS:

.modal-body {
position: relative;
padding: 20px;
height: 200px;
overflow-y: scroll;
}

and it's working!

I had the same problem, My upload limit was 2 MB, I edited my php.ini, and I set it to 5 MB but still it was showing 2 MB even after restarting server. Than I compressed my .sql file to zip by keeping its name as xyz.sql.zip so it became 451 kb from 3.5 mb. Then I uploaded it again. It worked for me.

Here is a robust function for using UTL_File.putline that includes the necessary error handling. It also handles headers, footers and a few other exceptional cases.

PROCEDURE usp_OUTPUT_ToFileAscii(p_Path IN VARCHAR2, p_FileName IN VARCHAR2, p_Input IN refCursor, p_Header in VARCHAR2, p_Footer IN VARCHAR2, p_WriteMode VARCHAR2) IS

              vLine VARCHAR2(30000);
              vFile UTL_FILE.file_type; 
              vExists boolean;
              vLength number;
              vBlockSize number;
    BEGIN

        UTL_FILE.fgetattr(p_path, p_FileName, vExists, vLength, vBlockSize);

                 FETCH p_Input INTO vLine;
         IF p_input%ROWCOUNT > 0
         THEN
            IF vExists THEN
               vFile := UTL_FILE.FOPEN_NCHAR(p_Path, p_FileName, p_WriteMode);
            ELSE
               --even if the append flag is passed if the file doesn't exist open it with W.
                vFile := UTL_FILE.FOPEN(p_Path, p_FileName, 'W');
            END IF;
            --GET HANDLE TO FILE
            IF p_Header IS NOT NULL THEN 
              UTL_FILE.PUT_LINE(vFile, p_Header);
            END IF;
            UTL_FILE.PUT_LINE(vFile, vLine);
            DBMS_OUTPUT.PUT_LINE('Record count > 0');

             --LOOP THROUGH CURSOR VAR
             LOOP
                FETCH p_Input INTO vLine;

                EXIT WHEN p_Input%NOTFOUND;

                UTL_FILE.PUT_LINE(vFile, vLine);

             END LOOP;


             IF p_Footer IS NOT NULL THEN 
                UTL_FILE.PUT_LINE(vFile, p_Footer);
             END IF;

             CLOSE p_Input;
             UTL_FILE.FCLOSE(vFile);
        ELSE
          DBMS_OUTPUT.PUT_LINE('Record count = 0');

        END IF; 


    EXCEPTION
       WHEN UTL_FILE.INVALID_PATH THEN 
           DBMS_OUTPUT.PUT_LINE ('invalid_path'); 
           DBMS_OUTPUT.PUT_LINE(SQLERRM);
           RAISE;

       WHEN UTL_FILE.INVALID_MODE THEN 
           DBMS_OUTPUT.PUT_LINE ('invalid_mode'); 
           DBMS_OUTPUT.PUT_LINE(SQLERRM);
           RAISE;

       WHEN UTL_FILE.INVALID_FILEHANDLE THEN 
           DBMS_OUTPUT.PUT_LINE ('invalid_filehandle'); 
           DBMS_OUTPUT.PUT_LINE(SQLERRM);
           RAISE;

       WHEN UTL_FILE.INVALID_OPERATION THEN 
           DBMS_OUTPUT.PUT_LINE ('invalid_operation'); 
           DBMS_OUTPUT.PUT_LINE(SQLERRM);
           RAISE;

       WHEN UTL_FILE.READ_ERROR THEN  
           DBMS_OUTPUT.PUT_LINE ('read_error');
           DBMS_OUTPUT.PUT_LINE(SQLERRM);
           RAISE;

       WHEN UTL_FILE.WRITE_ERROR THEN 
          DBMS_OUTPUT.PUT_LINE ('write_error'); 
          DBMS_OUTPUT.PUT_LINE(SQLERRM);
           RAISE;

       WHEN UTL_FILE.INTERNAL_ERROR THEN 
          DBMS_OUTPUT.PUT_LINE ('internal_error'); 
          DBMS_OUTPUT.PUT_LINE(SQLERRM);
          RAISE;            
       WHEN OTHERS THEN
          DBMS_OUTPUT.PUT_LINE ('other write error'); 
          DBMS_OUTPUT.PUT_LINE(SQLERRM);
          RAISE;
    END;

not() is a function in xpath (as opposed to an operator), so

//a[not(contains(@id, 'xx'))]

How about making everything easier with Json.NET?

    public void LoadJson()
    {
        using (StreamReader r = new StreamReader("file.json"))
        {
            string json = r.ReadToEnd();
            List<Item> items = JsonConvert.DeserializeObject<List<Item>>(json);
        }
    }

    public class Item
    {
        public int millis;
        public string stamp;
        public DateTime datetime;
        public string light;
        public float temp;
        public float vcc;
    }

You can even get the values dynamically without declaring Item class.

    dynamic array = JsonConvert.DeserializeObject(json);
    foreach(var item in array)
    {
        Console.WriteLine("{0} {1}", item.temp, item.vcc);
    }

Are you calling the web service from client script or on the server side?

You may find sending a content type header to the server will help, e.g.

'application/json; charset=utf-8'

On the client side, I use prototype client side library and there is a contentType parameter when making an Ajax call where you can specify this. I think jQuery has a getJSON method.

Given the lack of information regarding the original image size, specifying percentages for the width and height would result in highly erratic results. If you are trying to ensure that an image will fit within a specific location on your page then you'll need to use some server side code to manage that rescaling.

Creating a text file in unix can be done through a text editor (vim, emacs, gedit, etc). But what you want might be something like this

echo "insert text here" > myfile.txt

That will put the text 'insert text here' into a file myfile.txt. To verify that this worked use the command 'cat'.

cat myfile.txt

If you want to append to a file use this

echo "append this text" >> myfile.txt

I tried all the above and nothing worked for me. This solved all my problems:

pip install -U numpy

pip install -U scipy

Note that the -U option to pip install requests that the package be upgraded. Without it, if the package is already installed pip will inform you of this and exit without doing anything.

given the adjacency matrix:

{0, 1, 3, 4, 0, 0}

{0, 0, 2, 1, 2, 0}

{0, 1, 0, 3, 0, 0}

{0, 1, 1, 0, 0, 1}

{0, 0, 0, 0, 0, 6}

{0, 1, 0, 1, 0, 0}

the following Wolfram Mathematica code solve the problem to find all the simple paths between two nodes of a graph. I used simple recursion, and two global var to keep track of cycles and to store the desired output. the code hasn't been optimized just for the sake of code clarity. the "print" should be helpful to clarify how it works.

cycleQ[l_]:=If[Length[DeleteDuplicates[l]] == Length[l], False, True];
getNode[matrix_, node_]:=Complement[Range[Length[matrix]],Flatten[Position[matrix[[node]], 0]]];

builtTree[node_, matrix_]:=Block[{nodes, posAndNodes, root, pos},
    If[{node} != {} && node != endNode ,
        root = node;
        nodes = getNode[matrix, node];
        (*Print["root:",root,"---nodes:",nodes];*)

        AppendTo[lcycle, Flatten[{root, nodes}]];
        If[cycleQ[lcycle] == True,
            lcycle = Most[lcycle]; appendToTree[root, nodes];,
            Print["paths: ", tree, "\n", "root:", root, "---nodes:",nodes];
            appendToTree[root, nodes];

        ];
    ];

appendToTree[root_, nodes_] := Block[{pos, toAdd},
    pos = Flatten[Position[tree[[All, -1]], root]];
    For[i = 1, i <= Length[pos], i++,
        toAdd = Flatten[Thread[{tree[[pos[[i]]]], {#}}]] & /@ nodes;
        (* check cycles!*)            
        If[cycleQ[#] != True, AppendTo[tree, #]] & /@ toAdd;
    ];
    tree = Delete[tree, {#} & /@ pos];
    builtTree[#, matrix] & /@ Union[tree[[All, -1]]];
    ];
];

to call the code: initNode = 1; endNode = 6; lcycle = {}; tree = {{initNode}}; builtTree[initNode, matrix];

paths: {{1}} root:1---nodes:{2,3,4}

paths: {{1,2},{1,3},{1,4}} root:2---nodes:{3,4,5}

paths: {{1,3},{1,4},{1,2,3},{1,2,4},{1,2,5}} root:3---nodes:{2,4}

paths: {{1,4},{1,2,4},{1,2,5},{1,3,4},{1,2,3,4},{1,3,2,4},{1,3,2,5}} root:4---nodes:{2,3,6}

paths: {{1,2,5},{1,3,2,5},{1,4,6},{1,2,4,6},{1,3,4,6},{1,2,3,4,6},{1,3,2,4,6},{1,4,2,5},{1,3,4,2,5},{1,4,3,2,5}} root:5---nodes:{6}

RESULTS:{{1, 4, 6}, {1, 2, 4, 6}, {1, 2, 5, 6}, {1, 3, 4, 6}, {1, 2, 3, 4, 6}, {1, 3, 2, 4, 6}, {1, 3, 2, 5, 6}, {1, 4, 2, 5, 6}, {1, 3, 4, 2, 5, 6}, {1, 4, 3, 2, 5, 6}}

...Unfortunately I cannot upload images to show the results in a better way :(

http://textanddatamining.blogspot.com

The below should work

describe "#foo"
  it "should call 'bar' with appropriate arguments" do
     subject.stub(:bar)
     subject.foo
     expect(subject).to have_received(:bar).with("Invalid number of arguments")
  end
end

Documentation: https://github.com/rspec/rspec-mocks#expecting-arguments