It is very inefficient to store all values in memory, so the objects are reused and loaded one at a time. See this other SO question for a good explanation. Summary:
[...] when looping through the
Iterable
value list, each Object instance is re-used, so it only keeps one instance around at a given time.
Posting answer to my own question as I found it here and was hidden in bottom somewhere -
This is because the OS failed to install the required update Windows8.1-KB2999226-x64.msu.
However, you can install it by extracting that update to a folder (e.g. XXXX), and execute following cmdlet. You can find the Windows8.1-KB2999226-x64.msu at below.
C:\ProgramData\Package Cache\469A82B09E217DDCF849181A586DF1C97C0C5C85\packages\Patch\amd64\Windows8.1-KB2999226-x64.msu
copy this file to a folder you like, and
Create a folder XXXX in that and execute following commands from Admin command propmt
wusa.exe Windows8.1-KB2999226-x64.msu /extract:XXXX
DISM.exe /Online /Add-Package /PackagePath:XXXX\Windows8.1-KB2999226-x64.cab
vc_redist.x64.exe /repair
(last command need not be run. Just execute vc_redist.x64.exe once again)
this worked for me.
This is how I did it with these easy steps:
Setup a new build system:
Tools > Build System > New Build System
Replace the default code with the following:
{
"cmd": ["javac","$file_name","&&","java","$file_base_name"],
"path": "C:\\Program Files\\Java\\jdk1.7.0_25\\bin\\",
"shell": true
}
// locate the path of your jdk installation and replace it with 'path'
Save the file by giving it a name (I named mine "Java")
Activate the build system:
Here's a simple answer for these days of modern C++ (C++11 and later):
std::unique_ptr
when you want your object to live just as long as a single owning reference to it lives. For example, use it for a pointer to memory which gets allocated on entering some scope and de-allocated on exiting the scope.std::shared_ptr
when you do want to refer to your object from multiple places - and do not want your object to be de-allocated until all these references are themselves gone.std::weak_ptr
when you do want to refer to your object from multiple places - for those references for which it's ok to ignore and deallocate (so they'll just note the object is gone when you try to dereference).boost::
smart pointers or std::auto_ptr
except in special cases which you can read up on if you must.I create a helper function waitAll, may be it can make it sweeter. It only works in nodejs for now, not in browser chrome.
//const parallel = async (...items) => {
const waitAll = async (...items) => {
//this function does start execution the functions
//the execution has been started before running this code here
//instead it collects of the result of execution of the functions
const temp = [];
for (const item of items) {
//this is not
//temp.push(await item())
//it does wait for the result in series (not in parallel), but
//it doesn't affect the parallel execution of those functions
//because they haven started earlier
temp.push(await item);
}
return temp;
};
//the async functions are executed in parallel before passed
//in the waitAll function
//const finalResult = await waitAll(someResult(), anotherResult());
//const finalResult = await parallel(someResult(), anotherResult());
//or
const [result1, result2] = await waitAll(someResult(), anotherResult());
//const [result1, result2] = await parallel(someResult(), anotherResult());
I know it's a several years old post and you may solve your problem with above solution. However, i just want to suggest using InverseProperty for someone who still need. At least you don't need to change anything in OnModelCreating.
The below code is un-tested.
public class Team
{
[Key]
public int TeamId { get; set;}
public string Name { get; set; }
[InverseProperty("HomeTeam")]
public virtual ICollection<Match> HomeMatches { get; set; }
[InverseProperty("GuestTeam")]
public virtual ICollection<Match> GuestMatches { get; set; }
}
public class Match
{
[Key]
public int MatchId { get; set; }
public float HomePoints { get; set; }
public float GuestPoints { get; set; }
public DateTime Date { get; set; }
public virtual Team HomeTeam { get; set; }
public virtual Team GuestTeam { get; set; }
}
You can read more about InverseProperty on MSDN: https://msdn.microsoft.com/en-us/data/jj591583?f=255&MSPPError=-2147217396#Relationships
Standard Python dictionaries are inherently unordered, so what you're asking to do doesn't really make sense.
If you really, really know what you're doing, use
value_at_index = dic.values()[index]
Bear in mind that adding or removing an element can potentially change the index of every other element.
add these rules to the parent container:
display: grid
grid-auto-flow: column
grid-column-gap: 10px
Good reference: https://cssreference.io/
Browser compatibility: https://gridbyexample.com/browsers/
The Win32_Process
class provides access to both 32-bit and 64-bit processes when the script is run from a 64-bit command shell.
If this is not an option for you, you can try using the taskkill
command:
Dim oShell : Set oShell = CreateObject("WScript.Shell")
' Launch notepad '
oShell.Run "notepad"
WScript.Sleep 3000
' Kill notepad '
oShell.Run "taskkill /im notepad.exe", , True
To use an identity column in v10,
ALTER TABLE test
ADD COLUMN id { int | bigint | smallint}
GENERATED { BY DEFAULT | ALWAYS } AS IDENTITY PRIMARY KEY;
For an explanation of identity columns, see https://blog.2ndquadrant.com/postgresql-10-identity-columns/.
For the difference between GENERATED BY DEFAULT and GENERATED ALWAYS, see https://www.cybertec-postgresql.com/en/sequences-gains-and-pitfalls/.
For altering the sequence, see https://popsql.io/learn-sql/postgresql/how-to-alter-sequence-in-postgresql/.
I know this is old question, but this command helped me!
Go to your Tomcat Directory
Just type this command in your terminal:
./catalina.sh start
Using flexbox:
HTML:
<div class="wrapper">
<img src="pikachu.gif"/>
</div>
CSS:
.wrapper {
height: 300px;
width: 300px;
display: flex;
align-items: flex-end;
}
As requested in some comments on another answer, the image can also be horizontally centred with justify-content: center;
use get_compiled_select()
to retrieve query instead of replace it
Use the .date
method:
In [11]: t = pd.Timestamp('2013-12-25 00:00:00')
In [12]: t.date()
Out[12]: datetime.date(2013, 12, 25)
In [13]: t.date() == datetime.date(2013, 12, 25)
Out[13]: True
To compare against a DatetimeIndex (i.e. an array of Timestamps), you'll want to do it the other way around:
In [21]: pd.Timestamp(datetime.date(2013, 12, 25))
Out[21]: Timestamp('2013-12-25 00:00:00')
In [22]: ts = pd.DatetimeIndex([t])
In [23]: ts == pd.Timestamp(datetime.date(2013, 12, 25))
Out[23]: array([ True], dtype=bool)
Just index using you ind_pos
ind_pos = [1,5,7]
print (a[ind_pos])
[88 85 16]
In [55]: a = [0,88,26,3,48,85,65,16,97,83,91]
In [56]: import numpy as np
In [57]: arr = np.array(a)
In [58]: ind_pos = [1,5,7]
In [59]: arr[ind_pos]
Out[59]: array([88, 85, 16])
They are the same (as is the third form, ^=
).
Note, though, that they are still considered different from the point of view of the parser, that is a stored outline defined for a !=
won't match <>
or ^=
.
This is unlike PostgreSQL
where the parser treats !=
and <>
yet on parsing stage, so you cannot overload !=
and <>
to be different operators.
px = dp * (dpi / 160)
dp = px * (160 / dpi)
Amit, I have used one way to achieve this with less coding and more efficient way.
but it uses Linq.
I posted it here because maybe the answer helps other SO.
Below DAL code converts datatable object to List of YourViewModel and it's easy to understand.
public static class DAL
{
public static string connectionString = ConfigurationManager.ConnectionStrings["YourWebConfigConnection"].ConnectionString;
// function that creates a list of an object from the given data table
public static List<T> CreateListFromTable<T>(DataTable tbl) where T : new()
{
// define return list
List<T> lst = new List<T>();
// go through each row
foreach (DataRow r in tbl.Rows)
{
// add to the list
lst.Add(CreateItemFromRow<T>(r));
}
// return the list
return lst;
}
// function that creates an object from the given data row
public static T CreateItemFromRow<T>(DataRow row) where T : new()
{
// create a new object
T item = new T();
// set the item
SetItemFromRow(item, row);
// return
return item;
}
public static void SetItemFromRow<T>(T item, DataRow row) where T : new()
{
// go through each column
foreach (DataColumn c in row.Table.Columns)
{
// find the property for the column
PropertyInfo p = item.GetType().GetProperty(c.ColumnName);
// if exists, set the value
if (p != null && row[c] != DBNull.Value)
{
p.SetValue(item, row[c], null);
}
}
}
//call stored procedure to get data.
public static DataSet GetRecordWithExtendedTimeOut(string SPName, params SqlParameter[] SqlPrms)
{
DataSet ds = new DataSet();
SqlCommand cmd = new SqlCommand();
SqlDataAdapter da = new SqlDataAdapter();
SqlConnection con = new SqlConnection(connectionString);
try
{
cmd = new SqlCommand(SPName, con);
cmd.Parameters.AddRange(SqlPrms);
cmd.CommandTimeout = 240;
cmd.CommandType = CommandType.StoredProcedure;
da.SelectCommand = cmd;
da.Fill(ds);
}
catch (Exception ex)
{
return ex;
}
return ds;
}
}
Now, The way to pass and call method is below.
DataSet ds = DAL.GetRecordWithExtendedTimeOut("ProcedureName");
List<YourViewModel> model = new List<YourViewModel>();
if (ds != null)
{
//Pass datatable from dataset to our DAL Method.
model = DAL.CreateListFromTable<YourViewModel>(ds.Tables[0]);
}
Till the date, for many of my applications, I found this as the best structure to get data.
I had the "same" problem because I was writting
@GeneratedValue(strategy = GenerationType.IDENTITY)
I deleted that line due that I do not need it at the moment, I was testing with objects and so. I think it is <generator class="native" />
in your case
I do not have any controller and my API is not being accessed, it is only for testing (at the moment).
On most Linux distributions, you can use pidof
(8).
It will print the process ids of all running instances of specified processes, or nothing if there are no instances running.
For instance, on my system (I have four instances of bash
and one instance of remmina
running):
$ pidof bash remmina
6148 6147 6144 5603 21598
On other Unices, pgrep
or a combination of ps
and grep
will achieve the same thing, as others have rightfully pointed out.
You might be launching your application from a Product file which is not linked to the plugin file. Reset your workspace and launch using the MANIFEST.MF > Overview > Testing > Launch.
Using table-layout: fixed
as a property for table
and width: calc(100%/3);
for td
(assuming there are 3 td
's). With these two properties set, the table cells will be equal in size.
Refer to the demo.
This can be resolved by adding the following line to the eclipse.ini file -XX:-UseCompressedOops
Use the square bracket syntax:
if (!empty($row["title"])) {
$catList[$row["datasource_id"]] = $row["title"];
}
$row["datasource_id"]
is the key for where the value of $row["title"]
is stored in.
public class MyDatabaseHelper extends SQLiteOpenHelper {
private static final String DATABASE_NAME = "MyDb.db";
private static final int DATABASE_VERSION = 1;
// Database creation sql statement
private static final String DATABASE_CREATE_FRIDGE_ITEM = "create table FridgeItem(id integer primary key autoincrement,f_id text not null,food_item text not null,quantity text not null,measurement text not null,expiration_date text not null,current_date text not null,flag text not null,location text not null);";
public MyDatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
// Method is called during creation of the database
@Override
public void onCreate(SQLiteDatabase database) {
database.execSQL(DATABASE_CREATE_FRIDGE_ITEM);
}
// Method is called during an upgrade of the database,
@Override
public void onUpgrade(SQLiteDatabase database,int oldVersion,int newVersion){
Log.w(MyDatabaseHelper.class.getName(),"Upgrading database from version " + oldVersion + " to "
+ newVersion + ", which will destroy all old data");
database.execSQL("DROP TABLE IF EXISTS FridgeItem");
onCreate(database);
}
}
public class CommentsDataSource {
private MyDatabaseHelper dbHelper;
private SQLiteDatabase database;
public String stringArray[];
public final static String FOOD_TABLE = "FridgeItem"; // name of table
public final static String FOOD_ITEMS_DETAILS = "FoodDetails"; // name of table
public final static String P_ID = "id"; // pid
public final static String FOOD_ID = "f_id"; // id value for food item
public final static String FOOD_NAME = "food_item"; // name of food
public final static String FOOD_QUANTITY = "quantity"; // quantity of food item
public final static String FOOD_MEASUREMENT = "measurement"; // measurement of food item
public final static String FOOD_EXPIRATION = "expiration_date"; // expiration date of food item
public final static String FOOD_CURRENTDATE = "current_date"; // date of food item added
public final static String FLAG = "flag";
public final static String LOCATION = "location";
/**
*
* @param context
*/
public CommentsDataSource(Context context) {
dbHelper = new MyDatabaseHelper(context);
database = dbHelper.getWritableDatabase();
}
public long insertFoodItem(String id, String name,String quantity, String measurement, String currrentDate,String expiration,String flag,String location) {
ContentValues values = new ContentValues();
values.put(FOOD_ID, id);
values.put(FOOD_NAME, name);
values.put(FOOD_QUANTITY, quantity);
values.put(FOOD_MEASUREMENT, measurement);
values.put(FOOD_CURRENTDATE, currrentDate);
values.put(FOOD_EXPIRATION, expiration);
values.put(FLAG, flag);
values.put(LOCATION, location);
return database.insert(FOOD_TABLE, null, values);
}
public long insertFoodItemsDetails(String id, String name,String quantity, String measurement, String currrentDate,String expiration) {
ContentValues values = new ContentValues();
values.put(FOOD_ID, id);
values.put(FOOD_NAME, name);
values.put(FOOD_QUANTITY, quantity);
values.put(FOOD_MEASUREMENT, measurement);
values.put(FOOD_CURRENTDATE, currrentDate);
values.put(FOOD_EXPIRATION, expiration);
return database.insert(FOOD_ITEMS_DETAILS, null, values);
}
public Cursor selectRecords(String id) {
String[] cols = new String[] { FOOD_ID, FOOD_NAME, FOOD_QUANTITY, FOOD_MEASUREMENT, FOOD_EXPIRATION,FLAG,LOCATION,P_ID};
Cursor mCursor = database.query(true, FOOD_TABLE, cols, P_ID+"=?", new String[]{id}, null, null, null, null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor; // iterate to get each value.
}
public Cursor selectAllName() {
String[] cols = new String[] { FOOD_NAME};
Cursor mCursor = database.query(true, FOOD_TABLE, cols, null, null, null, null, null, null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor; // iterate to get each value.
}
public Cursor selectAllRecords(String loc) {
String[] cols = new String[] { FOOD_ID, FOOD_NAME, FOOD_QUANTITY, FOOD_MEASUREMENT, FOOD_EXPIRATION,FLAG,LOCATION,P_ID};
Cursor mCursor = database.query(true, FOOD_TABLE, cols, LOCATION+"=?", new String[]{loc}, null, null, null, null);
int size=mCursor.getCount();
stringArray = new String[size];
int i=0;
if (mCursor != null) {
mCursor.moveToFirst();
FoodInfo.arrayList.clear();
while (!mCursor.isAfterLast()) {
String name=mCursor.getString(1);
stringArray[i]=name;
String quant=mCursor.getString(2);
String measure=mCursor.getString(3);
String expir=mCursor.getString(4);
String id=mCursor.getString(7);
FoodInfo fooditem=new FoodInfo();
fooditem.setName(name);
fooditem.setQuantity(quant);
fooditem.setMesure(measure);
fooditem.setExpirationDate(expir);
fooditem.setid(id);
FoodInfo.arrayList.add(fooditem);
mCursor.moveToNext();
i++;
}
}
return mCursor; // iterate to get each value.
}
public Cursor selectExpDate() {
String[] cols = new String[] {FOOD_NAME, FOOD_QUANTITY, FOOD_MEASUREMENT, FOOD_EXPIRATION};
Cursor mCursor = database.query(true, FOOD_TABLE, cols, null, null, null, null, FOOD_EXPIRATION, null);
int size=mCursor.getCount();
stringArray = new String[size];
if (mCursor != null) {
mCursor.moveToFirst();
FoodInfo.arrayList.clear();
while (!mCursor.isAfterLast()) {
String name=mCursor.getString(0);
String quant=mCursor.getString(1);
String measure=mCursor.getString(2);
String expir=mCursor.getString(3);
FoodInfo fooditem=new FoodInfo();
fooditem.setName(name);
fooditem.setQuantity(quant);
fooditem.setMesure(measure);
fooditem.setExpirationDate(expir);
FoodInfo.arrayList.add(fooditem);
mCursor.moveToNext();
}
}
return mCursor; // iterate to get each value.
}
public int UpdateFoodItem(String id, String quantity, String expiration){
ContentValues values=new ContentValues();
values.put(FOOD_QUANTITY, quantity);
values.put(FOOD_EXPIRATION, expiration);
return database.update(FOOD_TABLE, values, P_ID+"=?", new String[]{id});
}
public void deleteComment(String id) {
System.out.println("Comment deleted with id: " + id);
database.delete(FOOD_TABLE, P_ID+"=?", new String[]{id});
}
}
install Android 7 - Platform 24 Full in android sdk manager
just it
alert (product.UnitName + " " + product.UnitPrice + " " + product.Stock)
or else create a toString() method on your object and call
alert(product.toString())
But I have to agree with other posters - if it is debugging you're going for then firebug or F12 on IE9 or chrome and using console.log is the way to go
Short answer: No. myObj isn't the name of the object, it's the name of a variable holding a reference to the object - you could have any number of other variables holding a reference to the same object.
Now, if it's your program, then you make the rules: if you want to say that any given object will only be referenced by one variable, ever, and diligently enforce that in your code, then just set a property on the object with the name of the variable.
That said, i doubt what you're asking for is actually what you really want. Maybe describe your problem in a bit more detail...?
Pedantry: JavaScript doesn't have classes. someObject
is a constructor function. Given a reference to an object, you can obtain a reference to the function that created it using the constructor property.
The answer you're looking for can be found here: JavaScript Callback Scope (and in response to numerous other questions on SO - it's a common point of confusion for those new to JS). You just need to wrap the call to the object member in a closure that preserves access to the context object.
C++11 brought us lambdas, which can be incredibly useful in this situation:
#define MACRO(X,Y) \
[&](x_, y_) { \
cout << "1st arg is:" << x_ << endl; \
cout << "2nd arg is:" << y_ << endl; \
cout << "Sum is:" << (x_ + y_) << endl; \
}((X), (Y))
You keep the generative power of macros, but have a comfy scope from which you can return whatever you want (including void
). Additionally, the issue of evaluating macro parameters multiple times is avoided.
Don't declare the variable in the userform. Declare it as Public
in the module.
Public pass As String
In the Userform
Private Sub CommandButton1_Click()
pass = UserForm1.TextBox1
Unload UserForm1
End Sub
In the Module
Public pass As String
Public Sub Login()
'
'~~> Rest of the code
'
UserForm1.Show
driver.findElementByName("PASSWORD").SendKeys pass
'
'~~> Rest of the code
'
End Sub
You might want to also add an additional check just before calling the driver.find...
line?
If Len(Trim(pass)) <> 0 Then
This will ensure that a blank string is not passed.
"top" is usually available on Solaris.
If not then revert to "vmstat" which is available on most UNIX system.
It should look something like this (from an AIX box)
vmstat System configuration: lcpu=4 mem=12288MB ent=2.00 kthr memory page faults cpu ----- ----------- ------------------------ ------------ ----------------------- r b avm fre re pi po fr sr cy in sy cs us sy id wa pc ec 2 1 1614644 585722 0 0 1 22 104 0 808 29047 2767 12 8 77 3 0.45 22.3
the colums "avm" and "fre" tell you the total memory and free memery.
a "man vmstat" should get you the gory details.
To fill a list with seperate instances of a class, you can use a for loop in the declaration of the list. The * multiply will link each copy to the same instance.
instancelist = [ MyClass() for i in range(29)]
and then access the instances through the index of the list.
instancelist[5].attr1 = 'whamma'
for app index add this line to somewhere common py file like url.py
admin.site.index_template = 'admin/custom_index.html'
for app module index : add this line to admin.py
admin.AdminSite.app_index_template = "servers/servers-home.html"
for change list : add this line to admin class:
change_list_template = "servers/servers_changelist.html"
for app module form template : add this line to your admin class
change_form_template = "servers/server_changeform.html"
etc. and find other in same admin's module classes
var pinIcon = new google.maps.MarkerImage(
"http://chart.apis.google.com/chart?chst=d_map_pin_letter&chld=%E2%80%A2|00D900",
null, /* size is determined at runtime */
null, /* origin is 0,0 */
null, /* anchor is bottom center of the scaled image */
new google.maps.Size(12, 18)
);
You may have select option values such as "Choose option". If you want to keep that value and clear the rest of the values you can first remove all the values and append
"Choose Option"
<select multiple='multiple' id='selectName'>
<option selected disabled>Choose Option</option>
<option>1</option>
<option>2</option>
<option>3</option>
</select>
Jquery
$('#selectName option').remove(); // clear all values
$('#selectName ').append('<option selected disabled>Choose Option</option>'); //append what you want to keep
Use this code this may help you.i have passed the cat id 17.pass woocommerce cat id and thats it
<?php
global $woocommerce;
global $wp_query;
$cat_id=17;
$table_name = $wpdb->prefix . "woocommerce_termmeta";
$query="SELECT meta_value FROM {$table_name} WHERE `meta_key`='thumbnail_id' and woocommerce_term_id ={$cat_id} LIMIT 0 , 30";
$result = $wpdb->get_results($query);
foreach($result as $result1){
$img_id= $result1->meta_value;
}
echo '<img src="'.wp_get_attachment_url( $img_id ).'" alt="category image">';
?>
I am going to assume this is a WinForms questions (which it feels like, based on it being a "program" rather than a website/app). In which case you can simple do the following to change the text colour of a label:
myLabel.ForeColor = System.Drawing.Color.Red;
Or any other colour of your choice. If you want to be more specific you can use an RGB value like so:
myLabel.ForeColor = Color.FromArgb(0, 0, 0);//(R, G, B) (0, 0, 0 = black)
Having different colours for different users can be done a number of ways. For example, you could allow each user to specify their own RGB value colours, store these somewhere and then load them when the user "connects".
An alternative method could be to just use 2 colours - 1 for the current user (running the app) and another colour for everyone else. This would help the user quickly identify their own messages above others.
A third approach could be to generate the colour randomly - however you will likely get conflicting values that do not show well against your background, so I would suggest not taking this approach. You could have a pre-defined list of "acceptable" colours and just pop one from that list for each user that joins.
In my case I created an async test method which returned void
. Returning of Task
instead of void
solved the issue.
For Microsoft SQL Server you can return the @@ROWCOUNT
variable to return the number of rows affected by the last statement in the stored procedure.
Here is a simple code snippet:
function getIndexOfSubStr(str, searchToken, preIndex, output) {
var result = str.match(searchToken);
if (result) {
output.push(result.index +preIndex);
str=str.substring(result.index+searchToken.length);
getIndexOfSubStr(str, searchToken, preIndex, output)
}
return output;
}
var str = "my name is 'xyz' and my school name is 'xyz' and my area name is 'xyz' ";
var searchToken ="my";
var preIndex = 0;
console.log(getIndexOfSubStr(str, searchToken, preIndex, []));
_x000D_
The easiest way to bulk rename files in directory is:
ls | xargs -I fileName mv fileName fileName.suffix
I don't recommend doing DOM manipulations inside a loop -- that can get expensive in large datasets. Instead, I would do something like this:
var elMainSelect = document.getElementById('mainSelect');
function selectOptionsCreate() {
var frag = document.createDocumentFragment(),
elOption;
for (var i=12; i<101; ++i) {
elOption = frag.appendChild(document.createElement('option'));
elOption.text = i;
}
elMainSelect.appendChild(frag);
}
You can read more about DocumentFragment on MDN, but here's the gist of it:
It is used as a light-weight version of Document to store a segment of a document structure comprised of nodes just like a standard document. The key difference is that because the document fragment isn't part of the actual DOM's structure, changes made to the fragment don't affect the document, cause reflow, or incur any performance impact that can occur when changes are made.
Try a simple where query
var filtered = unfilteredApps.Where(i => !excludedAppIds.Contains(i.Id));
The except method uses equality, your lists contain objects of different types, so none of the items they contain will be equal!
What I've done in this case is, in the primary jframe that I want to keep visible (for example, a menu frame), I deselect the option focusableWindowState
in the property window so It will be FALSE
. Once that is done, the jframes I call don´t lose focus until I close them.
string connetionString = null;
SqlConnection connection ;
SqlCommand command ;
SqlDataAdapter adapter = new SqlDataAdapter();
DataSet ds = new DataSet();
int i = 0;
string firstSql = null;
string secondSql = null;
connetionString = "Data Source=ServerName;Initial Catalog=DatabaseName;User ID=UserName;Password=Password";
firstSql = "Your First SQL Statement Here";
secondSql = "Your Second SQL Statement Here";
connection = new SqlConnection(connetionString);
try
{
connection.Open();
command = new SqlCommand(firstSql, connection);
adapter.SelectCommand = command;
adapter.Fill(ds, "First Table");
adapter.SelectCommand.CommandText = secondSql;
adapter.Fill(ds, "Second Table");
adapter.Dispose();
command.Dispose();
connection.Close();
//retrieve first table data
for (i = 0; i <= ds.Tables[0].Rows.Count - 1; i++)
{
MessageBox.Show(ds.Tables[0].Rows[i].ItemArray[0] + " -- " + ds.Tables[0].Rows[i].ItemArray[1]);
}
//retrieve second table data
for (i = 0; i <= ds.Tables[1].Rows.Count - 1; i++)
{
MessageBox.Show(ds.Tables[1].Rows[i].ItemArray[0] + " -- " + ds.Tables[1].Rows[i].ItemArray[1]);
}
}
catch (Exception ex)
{
MessageBox.Show("Can not open connection ! ");
}
To add one more important information to above provided answers -
For a process
def proc = command.execute();
always try to use
def outputStream = new StringBuffer();
proc.waitForProcessOutput(outputStream, System.err)
//proc.waitForProcessOutput(System.out, System.err)
rather than
def output = proc.in.text;
to capture the outputs after executing commands in groovy as the latter is a blocking call (SO question for reason).
With the support of CSS custom properties (variables) in iOS, you can set these with JS and use them on iOS only.
const iOS = /iPad|iPhone|iPod/.test(navigator.userAgent) && !window.MSStream;
if (iOS) {
document.body.classList.add('ios');
const vh = window.innerHeight / 100;
document.documentElement.style
.setProperty('--ios-10-vh', `${10 * vh}px`);
document.documentElement.style
.setProperty('--ios-50-vh', `${50 * vh}px`);
document.documentElement.style
.setProperty('--ios-100-vh', `${100 * vh}px`);
}
body.ios {
.side-nav {
top: var(--ios-50-vh);
}
section {
min-height: var(--ios-100-vh);
.container {
position: relative;
padding-top: var(--ios-10-vh);
padding-bottom: var(--ios-10-vh);
}
}
}
Have you seen the the bootstrap's afix in the JAvascript's section ???
I think it would be the best & easiest solution dude.
Have a look there : http://getbootstrap.com/javascript/#affix
If you are only interested in +0.0
and -0.0
, you can use fpclassify
from <cmath>
. For instance:
if( FP_ZERO == fpclassify(x) ) do_something;
Here is another simple answer, but without using classes.
from tkinter import *
def raise_frame(frame):
frame.tkraise()
root = Tk()
f1 = Frame(root)
f2 = Frame(root)
f3 = Frame(root)
f4 = Frame(root)
for frame in (f1, f2, f3, f4):
frame.grid(row=0, column=0, sticky='news')
Button(f1, text='Go to frame 2', command=lambda:raise_frame(f2)).pack()
Label(f1, text='FRAME 1').pack()
Label(f2, text='FRAME 2').pack()
Button(f2, text='Go to frame 3', command=lambda:raise_frame(f3)).pack()
Label(f3, text='FRAME 3').pack(side='left')
Button(f3, text='Go to frame 4', command=lambda:raise_frame(f4)).pack(side='left')
Label(f4, text='FRAME 4').pack()
Button(f4, text='Goto to frame 1', command=lambda:raise_frame(f1)).pack()
raise_frame(f1)
root.mainloop()
std::string replace(std::string base, const std::string from, const std::string to) {
std::string SecureCopy = base;
for (size_t start_pos = SecureCopy.find(from); start_pos != std::string::npos; start_pos = SecureCopy.find(from,start_pos))
{
SecureCopy.replace(start_pos, from.length(), to);
}
return SecureCopy;
}
You should be able to use the IF function for that. the syntax is =IF(condition, value_if_true, value_if_false)
. To add an extra column with only the non-reimbursed amounts, you would use something like:
=IF(B1="No", A1, 0)
and sum that. There's probably a way to include it in a single cell below the column as well, but off the top of my head I can't think of anything simple.
You should be able to use forward slashes in Java to refer to file locations.
The BufferedReader class is used for wrapping other file readers whos read method may not be very efficient. A more detailed description can be found in the Java APIs.
Toolkit's use of BufferedReader is probably what you need.
First add an Enrty
and Category
class:
public class Entry { public string Id { get; set; } public string Title { get; set; } public string Updated { get; set; } public string Summary { get; set; } public string GPoint { get; set; } public string GElev { get; set; } public List<string> Categories { get; set; } } public class Category { public string Label { get; set; } public string Term { get; set; } }
Then use LINQ to XML
XDocument xDoc = XDocument.Load("path"); List<Entry> entries = (from x in xDoc.Descendants("entry") select new Entry() { Id = (string) x.Element("id"), Title = (string)x.Element("title"), Updated = (string)x.Element("updated"), Summary = (string)x.Element("summary"), GPoint = (string)x.Element("georss:point"), GElev = (string)x.Element("georss:elev"), Categories = (from c in x.Elements("category") select new Category { Label = (string)c.Attribute("label"), Term = (string)c.Attribute("term") }).ToList(); }).ToList();
Best thing to do here is to add a column to the data object to represent the point colour. Then update sections of it by filtering.
data<- read.table('sample_data.txtt', header=TRUE, row.name=1)
# Create new column filled with default colour
data$Colour="black"
# Set new column values to appropriate colours
data$Colour[data$col_name2>=3]="red"
data$Colour[data$col_name2<=1]="blue"
# Plot all points at once, using newly generated colours
plot(data$col_name1,data$col_name2, ylim=c(0,5), col=data$Colour, ylim=c(0,10))
It should be clear how to adapt this for plots with more colours & conditions.
My solution similar as mefa:::rep.data.frame
, but a little faster and cares about row names:
rep.data.frame <- function(x, times) {
rnames <- attr(x, "row.names")
x <- lapply(x, rep.int, times = times)
class(x) <- "data.frame"
if (!is.numeric(rnames))
attr(x, "row.names") <- make.unique(rep.int(rnames, times))
else
attr(x, "row.names") <- .set_row_names(length(rnames) * times)
x
}
Compare solutions:
library(Lahman)
library(microbenchmark)
microbenchmark(
mefa:::rep.data.frame(Batting, 10),
rep.data.frame(Batting, 10),
Batting[rep.int(seq_len(nrow(Batting)), 10), ],
times = 10
)
#> Unit: milliseconds
#> expr min lq mean median uq max neval cld
#> mefa:::rep.data.frame(Batting, 10) 127.77786 135.3480 198.0240 148.1749 278.1066 356.3210 10 a
#> rep.data.frame(Batting, 10) 79.70335 82.8165 134.0974 87.2587 191.1713 307.4567 10 a
#> Batting[rep.int(seq_len(nrow(Batting)), 10), ] 895.73750 922.7059 981.8891 956.3463 1018.2411 1127.3927 10 b
For TortoiseGit 1.8.1.2 or later, there is a GUI to switch on/off credential helper.
It supports git-credential-wincred
and git-credential-winstore
.
TortoiseGit 1.8.16 add support for git-credential-manager
(Git Credential Manager, the successor of git-credential-winstore
)
For the first time you sync you are asked for user and password, you enter them and they will be saved to Windows credential store. It won't ask for user or password the next time you sync.
To use: Right click → TortoiseGit → Settings → Git → Credential. Select Credential helper: wincred - this repository only / wincred - current Windows user
You can improve the code by asking the user when the certificate is not valid whether he wants to continue or not. Do you want to continue? As below:
ServicePointManager.ServerCertificateValidationCallback =
new RemoteCertificateValidationCallback(ValidateServerCertificate);
And add a method like this:
public static bool ValidateServerCertificate(object sender,X509Certificate certificate,X509Chain chain,SslPolicyErrors sslPolicyErrors)
{
if (sslPolicyErrors == SslPolicyErrors.None)
return true;
else
{
if (System.Windows.Forms.MessageBox.Show("The server certificate is not valid.\nAccept?", "Certificate Validation", System.Windows.Forms.MessageBoxButtons.YesNo, System.Windows.Forms.MessageBoxIcon.Question) == System.Windows.Forms.DialogResult.Yes)
return true;
else
return false;
}
}
In ubuntu, we can find all password related to keystore from the given path.
/home/user/.AndroidStudio2.2(current version)/system/log/idea.log.x(older versions)
edit the file and search android.injected.signing.store
, then you can find the passwords.
-Pandroid.injected.signing.store.file= path to your keystore
-Pandroid.injected.signing.store.password=yourstorepassword
-Pandroid.injected.signing.key.alias=yourkeyalias
-Pandroid.injected.signing.key.password=yourkeypassword
I think you are confused with the printf(String format, Object... args)
method. The first argument is the format string, which is mandatory, rest you can pass an arbitrary number of Object
s.
There is no such overload for both the print()
and println()
methods.
You're probably after Set wbOOR = ThisWorkbook
Just to clarify
ThisWorkbook
will always refer to the workbook the code resides in
ActiveWorkbook
will refer to the workbook that is active
Be careful how you use this when dealing with multiple workbooks. It really depends on what you want to achieve as to which is the best option.
When you use $('.deletelanguage').click()
to register an event handler it adds the handler to only those elements which exists in the dom when the code was executed
you need to use delegation based event handlers here
$(document).on('click', '.deletelanguage', function(){
alert("success");
});
Maybe can be shorter an more elegant. But I did it.
public String getHumanTimeFormatFromMilliseconds(String millisecondS){
String message = "";
long milliseconds = Long.valueOf(millisecondS);
if (milliseconds >= 1000){
int seconds = (int) (milliseconds / 1000) % 60;
int minutes = (int) ((milliseconds / (1000 * 60)) % 60);
int hours = (int) ((milliseconds / (1000 * 60 * 60)) % 24);
int days = (int) (milliseconds / (1000 * 60 * 60 * 24));
if((days == 0) && (hours != 0)){
message = String.format("%d hours %d minutes %d seconds ago", hours, minutes, seconds);
}else if((hours == 0) && (minutes != 0)){
message = String.format("%d minutes %d seconds ago", minutes, seconds);
}else if((days == 0) && (hours == 0) && (minutes == 0)){
message = String.format("%d seconds ago", seconds);
}else{
message = String.format("%d days %d hours %d minutes %d seconds ago", days, hours, minutes, seconds);
}
} else{
message = "Less than a second ago.";
}
return message;
}
I just made my own UniqueList in my own little library like this:
package com.bprog.collections;//my own little set of useful utilities and classes
import java.util.HashSet;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author Jonathan
*/
public class UniqueList {
private HashSet masterSet = new HashSet();
private ArrayList growableUniques;
private Object[] returnable;
public UniqueList() {
growableUniques = new ArrayList();
}
public UniqueList(int size) {
growableUniques = new ArrayList(size);
}
public void add(Object thing) {
if (!masterSet.contains(thing)) {
masterSet.add(thing);
growableUniques.add(thing);
}
}
/**
* Casts to an ArrayList of unique values
* @return
*/
public List getList(){
return growableUniques;
}
public Object get(int index) {
return growableUniques.get(index);
}
public Object[] toObjectArray() {
int size = growableUniques.size();
returnable = new Object[size];
for (int i = 0; i < size; i++) {
returnable[i] = growableUniques.get(i);
}
return returnable;
}
}
I have a TestCollections class that looks like this:
package com.bprog.collections;
import com.bprog.out.Out;
/**
*
* @author Jonathan
*/
public class TestCollections {
public static void main(String[] args){
UniqueList ul = new UniqueList();
ul.add("Test");
ul.add("Test");
ul.add("Not a copy");
ul.add("Test");
//should only contain two things
Object[] content = ul.toObjectArray();
Out.pl("Array Content",content);
}
}
Works fine. All it does is it adds to a set if it does not have it already and there's an Arraylist that is returnable, as well as an object array.
you can use -clean parameter while starting eclipse like
C:\eclipse\eclipse.exe -vm "C:\Program Files\Java\jdk1.6.0_24\bin" -clean
Unless the array is sorted, that's the best you're going to get. If it is sorted, just take the first and last elements.
Of course, if it's not sorted, then sorting first and grabbing the first and last is guaranteed to be less efficient than just looping through once. Even the best sorting algorithms have to look at each element more than once (an average of O(log N) times for each element. That's O(N*Log N) total. A simple scan once through is only O(N).
If you are wanting quick access to the largest element in a data structure, take a look at heaps for an efficient way to keep objects in some sort of order.
Your http is being blocked by a firewall from F5 Networks called Application Security Manager (ASM). It produces messages like:
Please consult with your administrator.
Your support ID is: xxxxxxxxxxxx
So your application is passing some data that for some reason ASM detects as a threat. Give the support id to you network engineer to learn the specific reason.
Using LINQ you can do it like this:
var table_enum = table
// Convert to IEnumerable<string>
.OfType<string>()
// Create anonymous type where Index1 and Index2
// reflect the indices of the 2-dim. array
.Select((_string, _index) => new {
Index1 = (_index / 2),
Index2 = (_index % 2), // ? I added this only for completeness
Value = _string
})
// Group by Index1, which generates IEnmurable<string> for all Index1 values
.GroupBy(v => v.Index1)
// Convert all Groups of anonymous type to String-Arrays
.Select(group => group.Select(v => v.Value).ToArray());
// Now you can use the foreach-Loop as you planned
foreach(string[] str_arr in table_enum) {
// …
}
This way it is also possible to use the foreach for looping through the columns instead of the rows by using Index2 in the GroupBy instead of Index 1. If you don't know the dimension of your array then you have to use the GetLength() method to determine the dimension and use that value in the quotient.
I had the same problem and I solve it like :
public bool HasMember(IEnumerable<TEntity> Dataset)
{
return Dataset != null && Dataset.Any(c=>c!=null);
}
"c=>c!=null" will ignore all the null entities.
The minimum configuration to properly run sqlplus
from the shell is to set ORACLE_HOME
and LD_LIBRARY_PATH
. For ease of use, you might want to set the PATH
accordingly too.
Assuming you have unzipped the required archives in /opt/oracle/instantclient_11_1
:
$ export ORACLE_HOME=/opt/oracle/instantclient_11_1
$ export LD_LIBRARY_PATH="$ORACLE_HOME"
$ export PATH="$ORACLE_HOME:$PATH"
$ sqlplus
SQL*Plus: Release 11.1.0.7.0 - Production on Wed Dec 31 14:06:06 2014
...
I had to use Debug.print
instead of Print
, which works in the Immediate window.
Sub SendEmail()
'Dim objHTTP As New MSXML2.XMLHTTP
'Set objHTTP = New MSXML2.XMLHTTP60
'Dim objHTTP As New MSXML2.XMLHTTP60
Dim objHTTP As New WinHttp.WinHttpRequest
'Set objHTTP = CreateObject("WinHttp.WinHttpRequest.5.1")
'Set objHTTP = CreateObject("MSXML2.ServerXMLHTTP")
URL = "http://localhost:8888/rest/mail/send"
objHTTP.Open "POST", URL, False
objHTTP.setRequestHeader "Content-Type", "application/json"
objHTTP.send ("{""key"":null,""from"":""[email protected]"",""to"":null,""cc"":null,""bcc"":null,""date"":null,""subject"":""My Subject"",""body"":null,""attachments"":null}")
Debug.Print objHTTP.Status
Debug.Print objHTTP.ResponseText
End Sub
Just use the Date
property:
var today = DateTime.Today;
var q = db.Games.Where(t => t.StartDate.Date >= today)
.OrderBy(t => t.StartDate);
Note that I've explicitly evaluated DateTime.Today
once so that the query is consistent - otherwise each time the query is executed, and even within the execution, Today
could change, so you'd get inconsistent results. For example, suppose you had data of:
Entry 1: March 8th, 8am
Entry 2: March 10th, 10pm
Entry 3: March 8th, 5am
Entry 4: March 9th, 8pm
Surely either both entries 1 and 3 should be in the results, or neither of them should... but if you evaluate DateTime.Today
and it changes to March 9th after it's performed the first two checks, you could end up with entries 1, 2, 4.
Of course, using DateTime.Today
assumes you're interested in the date in the local time zone. That may not be appropriate, and you should make absolutely sure you know what you mean. You may want to use DateTime.UtcNow.Date
instead, for example. Unfortunately, DateTime
is a slippery beast...
EDIT: You may also want to get rid of the calls to DateTime
static properties altogether - they make the code hard to unit test. In Noda Time we have an interface specifically for this purpose (IClock
) which we'd expect to be injected appropriately. There's a "system time" implementation for production and a "stub" implementation for testing, or you can implement it yourself.
You can use the same idea without using Noda Time, of course. To unit test this particular piece of code you may want to pass the date in, but you'll be getting it from somewhere - and injecting a clock means you can test all the code.
Maybe it's is completely possible with only CSS but I prefer to avoid "float" as much as I can because it interferes with it's parent's height.
If you are using jQuery, you can create a simple `wrapN` plugin that is similar to `wrapAll` except it only wraps "N" elements and then breaks and wraps the next "N" elements using a loop. Then set your wrappers class to `display: block;`.
(function ($) {
$.fn.wrapN = function (wrapper, n, start) {
if (wrapper === undefined || n === undefined) return false;
if (start === undefined) start = 0;
for (var i = start; i < $(this).size(); i += n)
$(this).slice(i, i + n).wrapAll(wrapper);
return this;
};
}(jQuery));
$(document).ready(function () {
$("li").wrapN("<span class='break' />", 3);
});
Here is a JSFiddle of the finished product:
String one, two, three;
one = two = three = "";
This should work with immutable objects. It doesn't make any sense for mutable objects for example:
Person firstPerson, secondPerson, thirdPerson;
firstPerson = secondPerson = thirdPerson = new Person();
All the variables would be pointing to the same instance. Probably what you would need in that case is:
Person firstPerson = new Person();
Person secondPerson = new Person();
Person thirdPerson = new Person();
Or better yet use an array or a Collection
.
Adding an answer because I was directed here after asking how to run a bash script from python. You receive an error OSError: [Errno 2] file not found
if your script takes in parameters. Lets say for instance your script took in a sleep time parameter: subprocess.call("sleep.sh 10")
will not work, you must pass it as an array: subprocess.call(["sleep.sh", 10])
There is a simple and clean way of doing this with only directives.
<div ng-class="{'class-name': clicked}" ng-click="clicked = !clicked"></div>
You can also install simplejson.
If you have pip (see https://pypi.python.org/pypi/pip) as your Python package manager you can install simplejson with:
pip install simplejson
This is similar to the comment of installing with easy_install, but I prefer pip to easy_install as you can easily uninstall in pip with "pip uninstall package".
I came here looking for a simple 1-liner to remove/correct the identation level of the docstring for printing, without making it look untidy, for example by making it "hang outside the function" within the script.
Here's what I ended up doing:
import string
def myfunction():
"""
line 1 of docstring
line 2 of docstring
line 3 of docstring"""
print str(string.replace(myfunction.__doc__,'\n\t','\n'))[1:]
Obviously, if you're indenting with spaces (e.g. 4) rather than the tab key use something like this instead:
print str(string.replace(myfunction.__doc__,'\n ','\n'))[1:]
And you don't need to remove the first character if you like your docstrings to look like this instead:
"""line 1 of docstring
line 2 of docstring
line 3 of docstring"""
print string.replace(myfunction.__doc__,'\n\t','\n')
It might be possible to delete the Zone Record entirely, then recreate it exactly as you want it. Perhaps this will force a full propagation. If I'm wrong, somebody tell me and I'll delete this suggestion. Also, I don't know how to save a Zone Record and recreate it using WHM or any other tool.
I do know that when I deleted a hosting account today and recreated it, the original Zone Record seemed to be propagated instantly to a DNS resolver up the line from my computer. That is good evidence it works.
Download & Copy Your .jar
file in libs
folder then adding these line to build.gradle:
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.google.code.gson:gson:2.3.1'
}
Do not forget to click "Sync now"
I've created an extension method for this which makes use of SemaphoreSlim and also allows to set maximum degree of parallelism
/// <summary>
/// Concurrently Executes async actions for each item of <see cref="IEnumerable<typeparamref name="T"/>
/// </summary>
/// <typeparam name="T">Type of IEnumerable</typeparam>
/// <param name="enumerable">instance of <see cref="IEnumerable<typeparamref name="T"/>"/></param>
/// <param name="action">an async <see cref="Action" /> to execute</param>
/// <param name="maxDegreeOfParallelism">Optional, An integer that represents the maximum degree of parallelism,
/// Must be grater than 0</param>
/// <returns>A Task representing an async operation</returns>
/// <exception cref="ArgumentOutOfRangeException">If the maxActionsToRunInParallel is less than 1</exception>
public static async Task ForEachAsyncConcurrent<T>(
this IEnumerable<T> enumerable,
Func<T, Task> action,
int? maxDegreeOfParallelism = null)
{
if (maxDegreeOfParallelism.HasValue)
{
using (var semaphoreSlim = new SemaphoreSlim(
maxDegreeOfParallelism.Value, maxDegreeOfParallelism.Value))
{
var tasksWithThrottler = new List<Task>();
foreach (var item in enumerable)
{
// Increment the number of currently running tasks and wait if they are more than limit.
await semaphoreSlim.WaitAsync();
tasksWithThrottler.Add(Task.Run(async () =>
{
await action(item).ContinueWith(res =>
{
// action is completed, so decrement the number of currently running tasks
semaphoreSlim.Release();
});
}));
}
// Wait for all tasks to complete.
await Task.WhenAll(tasksWithThrottler.ToArray());
}
}
else
{
await Task.WhenAll(enumerable.Select(item => action(item)));
}
}
Sample Usage:
await enumerable.ForEachAsyncConcurrent(
async item =>
{
await SomeAsyncMethod(item);
},
5);
You need to check that the myString
object is null
:
if (myString != null) {
doSomething
}
Couldn't find a working answer here; but on linux you can run "umount.nfs4 /volume -f" and it definitely unmounts it.
If you need to change only part of the Array
,
You've a react component with state set to.
state = {items: [{name: 'red-one', value: 100}, {name: 'green-one', value: 999}]}
It's best to update the red-one
in the Array
as follows:
const itemIndex = this.state.items.findIndex(i=> i.name === 'red-one');
const newItems = [
this.state.items.slice(0, itemIndex),
{name: 'red-one', value: 666},
this.state.items.slice(itemIndex)
]
this.setState(newItems)
Use in AppDelegate.m
file:
(void)tabBarController:(UITabBarController *)tabBarController
didSelectViewController:(UIViewController *)viewController
{
NSLog(@"Selected index: %d", tabBarController.selectedIndex);
if (viewController == tabBarController.moreNavigationController)
{
tabBarController.moreNavigationController.delegate = self;
}
NSUInteger selectedIndex = tabBarController.selectedIndex;
switch (selectedIndex) {
case 0:
NSLog(@"click me %u",self.tabBarController.selectedIndex);
break;
case 1:
NSLog(@"click me again!! %u",self.tabBarController.selectedIndex);
break;
default:
break;
}
}
The choice of one or another depends on what you intend to do. From what I do understand:
jsonify would be useful when you are building an API someone would query and expect json in return. E.g: The REST github API could use this method to answer your request.
dumps, is more about formating data/python object into json and work on it inside your application. For instance, I need to pass an object to my representation layer where some javascript will display graph. You'll feed javascript with the Json generated by dumps.
Just add href='#scheduleentry-modal'
to the element you want to open the modal with
Or using jQuery: $('#scheduleentry-modal').modal('show');
In case one does not have sudo privilege, but still needs to install the library.
Download source for the software/library using:
apt-get source libaio
or
wget https://src.fedoraproject.org/lookaside/pkgs/libaio/libaio-0.3.110.tar.gz/2a35602e43778383e2f4907a4ca39ab8/libaio-0.3.110.tar.gz
unzip the library
Install with the following command to user-specific library:
make prefix=`pwd`/usr install #(Copy from INSTALL file of libaio-0.3.110)
or
make prefix=/path/to/your/lib/libaio install
Include libaio library into LD_LIBRARY_PATH for your app:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/path/to/your/lib/libaio/lib
Now, your app should be able to find libaio.so.1
2017 answer
CSS object fit works in all current browsers. It allows the img
element to be larger without stretching the image.
You can add object-fit: cover;
to your CSS.
One thing to notice is the lack of any "Copyout" within git. That's because you already have a full copy in your local repo - your local repo being a clone
of your chosen upstream repo. So you have effectively a personal checkout
of everything, without putting some 'lock' on those files in the reference repo.
Git provides the SHA1 hash values as the mechanism for verifying that the copy you have of a file / directory tree / commit / repo is exactly the same as that used by whoever is able to declare things as "Master" within the hierarchy of trust. This avoids all those 'locks' that cause most SCM systems to choke (with the usual problems of private copies, big merges, and no real control or management of source code ;-) !
The short answer is yes the "new" keyword is incredibly important as when you use it the object data is stored on the heap as opposed to the stack, which is most important!
I had this problem. As stated it is probably a static declaration issue. In my case it was because I had a static within a DEBUG clause. That is (in c#)
#if DEBUG
public static bool DOTHISISINDEBUGONLY = false;
#endif
Everything worked fine until I complied a Release version of the code and after that I got this error - even on old release versions of the code. Once I took the variable out of the DEBUG clause everything returned to normal.
Yes, it's possible. for example checkout:
<div class="singleMatch" ng-if="match.date | date:'ddMMyyyy' === main.date && match.team1.code === main.team1code && match.team2.code === main.team2code">
//Do something here
</div>
The data.table
package has a function 'as.ITime
', which can do this efficiently use below:
library(data.table)
x <- "2012-03-07 03:06:49 CET"
as.IDate(x) # Output is "2012-03-07"
as.ITime(x) # Output is "03:06:49"
You can get a list of files last modified later than x days ago with:
find . -mtime -x
Then you just have to tar and zip files in the resulting list, e.g.:
tar czvf mytarfile.tgz `find . -mtime -30`
for all files modified during last month.
erlswf is an opensource project written in erlang for decompiling .swf files.
Here's the site: https://github.com/bef/erlswf
If you are using a third party library called apache commons-lang, the following solution can be useful:
Use StringUtils
class of apache commons-lang :
int i = 5;
StringUtils.leftPad(String.valueOf(i), 3, "0"); // --> "005"
As StringUtils.leftPad()
is faster than String.format()
Use case: merging default configs
If we define configs in the form of:
const defaultConf = {
prop1: 'config1',
prop2: 'config2'
}
we can define more specific configs by doing:
const moreSpecificConf = {
...defaultConf,
prop3: 'config3'
}
But if these configs contain nested structures this approach doesn't work anymore.
Therefore I wrote a function that only merges objects in the sense of { key: value, ... }
and replaces the rest.
const isObject = (val) => val === Object(val);
const merge = (...objects) =>
objects.reduce(
(obj1, obj2) => ({
...obj1,
...obj2,
...Object.keys(obj2)
.filter((key) => key in obj1 && isObject(obj1[key]) && isObject(obj2[key]))
.map((key) => ({[key]: merge(obj1[key], obj2[key])}))
.reduce((n1, n2) => ({...n1, ...n2}), {})
}),
{}
);
This is by far the best post for exporting to excel from SQL:
http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=49926
To quote from user madhivanan
,
Apart from using DTS and Export wizard, we can also use this query to export data from SQL Server2000 to Excel
Create an Excel file named testing having the headers same as that of table columns and use these queries
1 Export data to existing EXCEL file from SQL Server table
insert into OPENROWSET('Microsoft.Jet.OLEDB.4.0',
'Excel 8.0;Database=D:\testing.xls;',
'SELECT * FROM [SheetName$]') select * from SQLServerTable
2 Export data from Excel to new SQL Server table
select *
into SQLServerTable FROM OPENROWSET('Microsoft.Jet.OLEDB.4.0',
'Excel 8.0;Database=D:\testing.xls;HDR=YES',
'SELECT * FROM [Sheet1$]')
3 Export data from Excel to existing SQL Server table (edited)
Insert into SQLServerTable Select * FROM OPENROWSET('Microsoft.Jet.OLEDB.4.0',
'Excel 8.0;Database=D:\testing.xls;HDR=YES',
'SELECT * FROM [SheetName$]')
4 If you dont want to create an EXCEL file in advance and want to export data to it, use
EXEC sp_makewebtask
@outputfile = 'd:\testing.xls',
@query = 'Select * from Database_name..SQLServerTable',
@colheaders =1,
@FixedFont=0,@lastupdated=0,@resultstitle='Testing details'
(Now you can find the file with data in tabular format)
5 To export data to new EXCEL file with heading(column names), create the following procedure
create procedure proc_generate_excel_with_columns
(
@db_name varchar(100),
@table_name varchar(100),
@file_name varchar(100)
)
as
--Generate column names as a recordset
declare @columns varchar(8000), @sql varchar(8000), @data_file varchar(100)
select
@columns=coalesce(@columns+',','')+column_name+' as '+column_name
from
information_schema.columns
where
table_name=@table_name
select @columns=''''''+replace(replace(@columns,' as ',''''' as '),',',',''''')
--Create a dummy file to have actual data
select @data_file=substring(@file_name,1,len(@file_name)-charindex('\',reverse(@file_name)))+'\data_file.xls'
--Generate column names in the passed EXCEL file
set @sql='exec master..xp_cmdshell ''bcp " select * from (select '+@columns+') as t" queryout "'+@file_name+'" -c'''
exec(@sql)
--Generate data in the dummy file
set @sql='exec master..xp_cmdshell ''bcp "select * from '+@db_name+'..'+@table_name+'" queryout "'+@data_file+'" -c'''
exec(@sql)
--Copy dummy file to passed EXCEL file
set @sql= 'exec master..xp_cmdshell ''type '+@data_file+' >> "'+@file_name+'"'''
exec(@sql)
--Delete dummy file
set @sql= 'exec master..xp_cmdshell ''del '+@data_file+''''
exec(@sql)
After creating the procedure, execute it by supplying database name, table name and file path:
EXEC proc_generate_excel_with_columns 'your dbname', 'your table name','your file path'
Its a whomping 29 pages but that is because others show various other ways as well as people asking questions just like this one on how to do it.
Follow that thread entirely and look at the various questions people have asked and how they are solved. I picked up quite a bit of knowledge just skimming it and have used portions of it to get expected results.
To update single cells
A member also there Peter Larson posts the following: I think one thing is missing here. It is great to be able to Export and Import to Excel files, but how about updating single cells? Or a range of cells?
This is the principle of how you do manage that
update OPENROWSET('Microsoft.Jet.OLEDB.4.0',
'Excel 8.0;Database=c:\test.xls;hdr=no',
'SELECT * FROM [Sheet1$b7:b7]') set f1 = -99
You can also add formulas to Excel using this:
update OPENROWSET('Microsoft.Jet.OLEDB.4.0',
'Excel 8.0;Database=c:\test.xls;hdr=no',
'SELECT * FROM [Sheet1$b7:b7]') set f1 = '=a7+c7'
Exporting with column names using T-SQL
Member Mladen Prajdic also has a blog entry on how to do this here
References: www.sqlteam.com (btw this is an excellent blog / forum for anyone looking to get more out of SQL Server). For error referencing I used this
If you get the following error:
OLE DB provider 'Microsoft.Jet.OLEDB.4.0' cannot be used for distributed queries
Then run this:
sp_configure 'show advanced options', 1;
GO
RECONFIGURE;
GO
sp_configure 'Ad Hoc Distributed Queries', 1;
GO
RECONFIGURE;
GO
Detailed explanation for each scope can be found here in Spring bean scopes. Below is the summary
Singleton - (Default) Scopes a single bean definition to a single object instance per Spring IoC container.
prototype - Scopes a single bean definition to any number of object instances.
request - Scopes a single bean definition to the lifecycle of a single HTTP request; that is, each HTTP request has its own instance of a bean created off the back of a single bean definition. Only valid in the context of a web-aware Spring ApplicationContext.
session - Scopes a single bean definition to the lifecycle of an HTTP Session. Only valid in the context of a web-aware Spring ApplicationContext.
global session - Scopes a single bean definition to the lifecycle of a global HTTP Session. Typically only valid when used in a portlet context. Only valid in the context of a web-aware Spring ApplicationContext.
Use chown
to change ownership and chmod
to change rights.
use the -R
option to apply the rights for all files inside of a directory too.
Note that both these commands just work for directories too. The -R
option makes them also change the permissions for all files and directories inside of the directory.
For example
sudo chown -R username:group directory
will change ownership (both user and group) of all files and directories inside of directory and directory itself.
sudo chown username:group directory
will only change the permission of the folder directory but will leave the files and folders inside the directory alone.
you need to use sudo to change the ownership from root to yourself.
Edit:
Note that if you use chown user: file
(Note the left-out group), it will use the default group for that user.
Also You can change the group ownership of a file or directory with the command:
chgrp group_name file/directory_name
You must be a member of the group to which you are changing ownership to.
You can find group of file as follows
# ls -l file
-rw-r--r-- 1 root family 0 2012-05-22 20:03 file
# chown sujit:friends file
User 500 is just a normal user. Typically user 500 was the first user on the system, recent changes (to /etc/login.defs) has altered the minimum user id to 1000 in many distributions, so typically 1000 is now the first (non root) user.
What you may be seeing is a system which has been upgraded from the old state to the new state and still has some processes knocking about on uid 500. You can likely change it by first checking if your distro should indeed now use 1000, and if so alter the login.defs file yourself, the renumber the user account in /etc/passwd and chown/chgrp all their files, usually in /home/, then reboot.
But in answer to your question, no, you should not really be worried about this in all likelihood. It'll be showing as "500" instead of a username because o user in /etc/passwd has a uid set of 500, that's all.
Also you can show your current numbers using id i'm willing to bet it comes back as 1000 for you.
You cannot add a column with a default value in Hive. You have the right syntax for adding the column ALTER TABLE test1 ADD COLUMNS (access_count1 int);
, you just need to get rid of default sum(max_count)
. No changes to that files backing your table will happen as a result of adding the column. Hive handles the "missing" data by interpreting NULL
as the value for every cell in that column.
So now your have the problem of needing to populate the column. Unfortunately in Hive you essentially need to rewrite the whole table, this time with the column populated. It may be easier to rerun your original query with the new column. Or you could add the column to the table you have now, then select all of its columns plus value for the new column.
You also have the option to always COALESCE
the column to your desired default and leave it NULL
for now. This option fails when you want NULL
to have a meaning distinct from your desired default. It also requires you to depend on always remembering to COALESCE
.
If you are very confident in your abilities to deal with the files backing Hive, you could also directly alter them to add your default. In general I would recommend against this because most of the time it will be slower and more dangerous. There might be some case where it makes sense though, so I've included this option for completeness.
Andreas, I've also been looking for an "email-to-id" ellegant solution and couldn't find one. However, as you said, screen scraping is not such a bad idea in this case, because emails are unique and you either get a single match or none. As long as Facebook don't change their search page drastically, the following will do the trick:
final static String USER_SEARCH_QUERY = "http://www.facebook.com/search.php?init=s:email&q=%s&type=users";
final static String USER_URL_PREFIX = "http://www.facebook.com/profile.php?id=";
public static String emailToID(String email)
{
try
{
String html = getHTML(String.format(USER_SEARCH_QUERY, email));
if (html != null)
{
int i = html.indexOf(USER_URL_PREFIX) + USER_URL_PREFIX.length();
if (i > 0)
{
StringBuilder sb = new StringBuilder();
char c;
while (Character.isDigit(c = html.charAt(i++)))
sb.append(c);
if (sb.length() > 0)
return sb.toString();
}
}
} catch (Exception e)
{
e.printStackTrace();
}
return null;
}
private static String getHTML(String htmlUrl) throws MalformedURLException, IOException
{
StringBuilder response = new StringBuilder();
URL url = new URL(htmlUrl);
HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
httpConn.setRequestMethod("GET");
if (httpConn.getResponseCode() == HttpURLConnection.HTTP_OK)
{
BufferedReader input = new BufferedReader(new InputStreamReader(httpConn.getInputStream()), 8192);
String strLine = null;
while ((strLine = input.readLine()) != null)
response.append(strLine);
input.close();
}
return (response.length() == 0) ? null : response.toString();
}
Hash results varies between 32bit and 64bit platforms
If a calculated hash shall be the same on both platforms consider using
def hash32(value):
return hash(value) & 0xffffffff
` Please include either of these:
`#include<sstream>`
using std::istringstream;
Use the CSS Flexbox flex-grow
property to achieve this.
.main {
display: flex;
}
.col-1, .col-3 {
width: 100px;
}
.col-2 {
flex-grow: 1;
}
_x000D_
<div class="main">
<div class="col-1" style="background: #fc9;">Left column</div>
<div class="col-2" style="background: #eee;">Middle column</div>
<div class="col-3" style="background: #fc9;">Right column</div>
</div>
_x000D_
Update 2013 - This was written around Node v0.2 and v0.4; There are much better utilites now around logging. I highly recommend Winston
Update Late 2013 - We still use winston, but now with a logger library to wrap the functionality around logging of custom objects and formatting. Here is a sample of our logger.js https://gist.github.com/rtgibbons/7354879
Should be as simple as this.
var access = fs.createWriteStream(dir + '/node.access.log', { flags: 'a' })
, error = fs.createWriteStream(dir + '/node.error.log', { flags: 'a' });
// redirect stdout / stderr
proc.stdout.pipe(access);
proc.stderr.pipe(error);
Most of the answers presented got me close to where I needed to be, but not quite there.
We basically wanted to assess if the scroll bars -would- be visible in a normal situation, by that definition meaning that the size of the body element is larger than the view port. This was not a presented solution, which is why I am submitting it.
Hopefully it helps someone!
(function($) {
$.fn.hasScrollBar = function() {
return this.get(0).scrollHeight > $(window).height();
}
})(jQuery);
Essentially, we have the hasScrollbar
function, but returning if the requested element is larger than the view port. For view port size, we just used $(window).height()
. A quick compare of that against the element size, yields the correct results and desirable behavior.
No, they are the same. But there is a difference between:
Test t; // create a Test called t
and
Test t(); // declare a function called t which returns a Test
This is because of the basic C++ (and C) rule: If something can possibly be a declaration, then it is a declaration.
Edit: Re the initialisation issues regarding POD and non-POD data, while I agree with everything that has been said, I would just like to point out that these issues only apply if the thing being new'd or otherwise constructed does not have a user-defined constructor. If there is such a constructor it will be used. For 99.99% of sensibly designed classes there will be such a constructor, and so the issues can be ignored.
I know this is an older issue, but I recently had the same problem and was having issues resolving it, despite attempting the DisplayUnlockCaptcha fix. This is how I got it alive.
Head over to Account Security Settings (https://www.google.com/settings/security/lesssecureapps) and enable "Access for less secure apps", this allows you to use the google smtp for clients other than the official ones.
Update
Google has been so kind as to list all the potential problems and fixes for us. Although I recommend trying the less secure apps setting. Be sure you are applying these to the correct account.
- If you've turned on 2-Step Verification for your account, you might need to enter an App password instead of your regular password.
- Sign in to your account from the web version of Gmail at https://mail.google.com. Once you’re signed in, try signing in
to the mail app again.- Visit http://www.google.com/accounts/DisplayUnlockCaptcha and sign in with your Gmail username and password. If asked, enter the
letters in the distorted picture.- Your app might not support the latest security standards. Try changing a few settings to allow less secure apps access to your account.
- Make sure your mail app isn't set to check for new email too often. If your mail app checks for new messages more than once every 10
minutes, the app’s access to your account could be blocked.
For business/Gsuite apps or whatever they call them, you can specify the domain (had problem with 500 errors with the original answer when logged into multiple Google accounts).
<iframe
src="https://drive.google.com/a/YOUR_COMPANY_DOMAIN/embeddedfolderview?id=FOLDER-ID"
style="width:100%; height:600px; border:0;"
>
</iframe>
To augment Benjamin's answer with an example:
Find Carrots(With)Dip(Are)Yummy
Replace Bananas$1Mustard$2Gross
Result BananasWithMustardAreGross
Anything in the parentheses can be a regular expression.
This issue vexed me for some time. I was using reactive forms and I fixed it using this method. PS. Using Angular 9 and Material 9.
In the "ngOnInit" lifecycle hook
1) Get the object you want to set as the default from your array or object literal
const countryDefault = this.countries.find(c => c.number === '826');
Here I am grabbing the United Kingdom object from my countries array.
2) Then set the formsbuilder object (the mat-select) with the default value.
this.addressForm.get('country').setValue(countryDefault.name);
3) Lastly...set the bound value property. In my case I want the name value.
<mat-select formControlName="country">
<mat-option *ngFor="let country of countries" [value]="country.name" >
{{country.name}}
</mat-option>
</mat-select>
Works like a charm. I hope it helps
If you want to uninstall when connected to single device/emulator then use below command
adb uninstall <package name>
else with multiple devices then use below command
adb -s <device ID> uninstall <package name>
Maybe this answer is so late, but it's useful.
to do it,we have 3 steps:
1- Create a modal structure in HTML.
2- Create a button to call a function in java script, to open modal and set display:none
in CSS .
3- Call this button by function in code behind .
you can see these steps in below snippet :
HTML modal:
<div class="modal fade" id="myModal">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span></button>
<h4 class="modal-title">
Registration done Successfully</h4>
</div>
<div class="modal-body">
<asp:Label ID="lblMessage" runat="server" />
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">
Close</button>
<button type="button" class="btn btn-primary">
Save changes</button>
</div>
</div>
<!-- /.modal-content -->
</div>
<!-- /.modal-dialog -->
</div>
<!-- /.modal -->
Hidden Button:
<button type="button" style="display: none;" id="btnShowPopup" class="btn btn-primary btn-lg"
data-toggle="modal" data-target="#myModal">
Launch demo modal
</button>
Script Code:
<script type="text/javascript">
function ShowPopup() {
$("#btnShowPopup").click();
}
</script>
code behind:
protected void Page_Load(object sender, EventArgs e)
{
ClientScript.RegisterStartupScript(this.GetType(), "alert", "ShowPopup();", true);
this.lblMessage.Text = "Your Registration is done successfully. Our team will contact you shotly";
}
this solution is one of any solutions that I used it .
There's no need for you to use super-call of the ActionBarDrawerToggle
which requires the Toolbar. This means instead of using the following constructor:
ActionBarDrawerToggle(Activity activity, DrawerLayout drawerLayout, Toolbar toolbar, int openDrawerContentDescRes, int closeDrawerContentDescRes)
You should use this one:
ActionBarDrawerToggle(Activity activity, DrawerLayout drawerLayout, int openDrawerContentDescRes, int closeDrawerContentDescRes)
So basically the only thing you have to do is to remove your custom drawable
:
super(mActivity, mDrawerLayout, R.string.ns_menu_open, R.string.ns_menu_close);
More about the "new" ActionBarDrawerToggle in the Docs (click).
let dropdown = document.querySelector('select');
if (dropdown) dropdown.addEventListener('change', function(event) {
console.log(event.target.value);
});
As far as I know you can use all mentioned technologies separately or together. It's up to you. I think you look at the problem from the wrong angle. Material Design is just the way particular elements of the page are designed, behave and put together. Material Design provides great UI/UX, but it relies on the graphic layout (HTML/CSS) rather than JS (events, interactions).
On the other hand, AngularJS and Bootstrap are front-end frameworks that can speed up your development by saving you from writing tons of code. For example, you can build web app utilizing AngularJS, but without Material Design. Or You can build simple HTML5 web page with Material Design without AngularJS or Bootstrap. Finally you can build web app that uses AngularJS with Bootstrap and with Material Design. This is the best scenario. All technologies support each other.
You can check awesome material design components for AngularJS:
https://material.angularjs.org
Since you are looking for adding space between elements you may need something as simple as a margin-left or padding-left. Here are examples of both http://jsfiddle.net/BGHqn/3/
This will add 10 pixels to the left of the paragraph element
p {
margin-left: 10px;
}
or if you just want some padding within your paragraph element
p {
padding-left: 10px;
}
Reference the DLL´s to your Resources and and use the AssemblyResolve-Event to return the Resource-DLL.
public partial class App : Application
{
public App()
{
AppDomain.CurrentDomain.AssemblyResolve += (sender, args) =>
{
Assembly thisAssembly = Assembly.GetExecutingAssembly();
//Get the Name of the AssemblyFile
var name = args.Name.Substring(0, args.Name.IndexOf(',')) + ".dll";
//Load form Embedded Resources - This Function is not called if the Assembly is in the Application Folder
var resources = thisAssembly.GetManifestResourceNames().Where(s => s.EndsWith(name));
if (resources.Count() > 0)
{
var resourceName = resources.First();
using (Stream stream = thisAssembly.GetManifestResourceStream(resourceName))
{
if (stream == null) return null;
var block = new byte[stream.Length];
stream.Read(block, 0, block.Length);
return Assembly.Load(block);
}
}
return null;
};
}
}
create table xyz_new as select * from xyz where 1=0;
http://www.codeassists.com/questions/oracle/copy-table-data-to-new-table-in-oracle
You need to wait for the emulator to full start - takes a few minutes. Once it is fully started (UI on the emulator will change), it should work.
You will need to restart the app after the emulator is running and choose the running emulator when prompted.
Shortest solution to be assign the window to a typescript variable then call the print method on that, like below
in template file
<button ... (click)="window.print()" ...>Submit</button>
and, in typescript file
window: any;
constructor() {
this.window = window;
}
There are two alternatives that'll work for sure:
If the above method didn't worked, try the next.
Add the following to build.gradle file at app level
defaultConfig {
multiDexEnabled true
}
A ready method to fulfill the most popular answer:
public static int getActionBarHeight(
Activity activity) {
int actionBarHeight = 0;
TypedValue typedValue = new TypedValue();
try {
if (activity
.getTheme()
.resolveAttribute(
android.R.attr.actionBarSize,
typedValue,
true)) {
actionBarHeight =
TypedValue.complexToDimensionPixelSize(
typedValue.data,
activity
.getResources()
.getDisplayMetrics());
}
} catch (Exception ignore) {
}
return actionBarHeight;
}
if you need it in rails you can use first (source code)
'1234567890'.first(5) # => "12345"
there is also last (source code)
'1234567890'.last(2) # => "90"
alternatively check from/to (source code):
"hello".from(1).to(-2) # => "ell"
I had a similar problem with virtualenv
that had python3.8
while installing dependencies from requirements.txt
file. I managed to get it to work by activating the virtualenv
and then running the command python -m pip install -r requirements.txt
and it worked.
I just want to notice that startActivity
from outside an activity is valid in some android versions (between N and O-MR1) and the interesting point is that it is a bug in android source code!
This is the comment above startActivity
implementation. See here.
Calling start activity from outside an activity without FLAG_ACTIVITY_NEW_TASK is generally not allowed, except if the caller specifies the task id the activity should be launched in. A bug was existed between N and O-MR1 which allowed this to work.
In addition to @KenM's answer, another important distinction is that, when loading in a saved object, you can assign the contents of an Rds
file. Not so for Rda
> x <- 1:5
> save(x, file="x.Rda")
> saveRDS(x, file="x.Rds")
> rm(x)
## ASSIGN USING readRDS
> new_x1 <- readRDS("x.Rds")
> new_x1
[1] 1 2 3 4 5
## 'ASSIGN' USING load -- note the result
> new_x2 <- load("x.Rda")
loading in to <environment: R_GlobalEnv>
> new_x2
[1] "x"
# NOTE: `load()` simply returns the name of the objects loaded. Not the values.
> x
[1] 1 2 3 4 5
You had better use finish()
if you are in Activity
, or getActivity().finish()
if you are in the Fragment
.
If you want to quit the app completely, then use:
getActivity().finish();
System.exit(0);
Note: Commenting out bind_ip can make your system vulnerable to security flaws. Please see Security Checklist. It is a better idea to add more IP addresses than to open up your system to everything.
You need to edit your /etc/mongod.conf file's bind_ip variable to include the IP of the computer you're using, or eliminate it altogether.
I was able to connect using the following mongod.conf file. I commented out bind_ip and uncommented port.
# mongod.conf
# Where to store the data.
# Note: if you run MongoDB as a non-root user (recommended) you may
# need to create and set permissions for this directory manually.
# E.g., if the parent directory isn't mutable by the MongoDB user.
dbpath=/var/lib/mongodb
# Where to log
logpath=/var/log/mongodb/mongod.log
logappend=true
port = 27017
# Listen to local interface only. Comment out to listen on all
interfaces.
#bind_ip = 127.0.0.1
# Disables write-ahead journaling
# nojournal = true
# Enables periodic logging of CPU utilization and I/O wait
#cpu = true
# Turn on/off security. Off is currently the default
#noauth = true
#auth = true
# Verbose logging output.
#verbose = true
# Inspect all client data for validity on receipt (useful for
# developing drivers)
#objcheck = true
# Enable db quota management
#quota = true
# Set oplogging level where n is
# 0=off (default)
# 1=W
# 2=R
# 3=both
# 7=W+some reads
#diaglog = 0
# Ignore query hints
#nohints = true
# Enable the HTTP interface (Defaults to port 28017).
#httpinterface = true
# Turns off server-side scripting. This will result in greatly limited
# functionality
#noscripting = true
# Turns off table scans. Any query that would do a table scan fails.
#notablescan = true
# Disable data file preallocation.
#noprealloc = true
# Specify .ns file size for new databases.
# nssize = <size>
# Replication Options
# In replicated MongoDB databases, specify the replica set name here
#replSet=setname
# Maximum size in megabytes for replication operation log
#oplogSize=1024
# Path to a key file storing authentication info for connections
# between replica set members
#keyFile=/path/to/keyfile
Don't forget to restart the mongod service before trying to connect:
service mongod restart
From Robomongo, I used the following connection settings:
Connection Tab:
SSH Tab:
SSH Address: [VPS IP] : 22
SSH User Name: [Username for sudo enabled user]
SSH Auth Method: Password
User Password: Supersecret
For Python 3.x, use input()
. For Python 2.x, use raw_input()
. Don't forget you can add a prompt string in your input()
call to create one less print statement. input("GUESS THAT NUMBER!")
.
Of course it's possible to create a foreign key relationship to a compound (more than one column) primary key. You didn't show us the statement you're using to try and create that relationship - it should be something like:
ALTER TABLE dbo.Content
ADD CONSTRAINT FK_Content_Libraries
FOREIGN KEY(LibraryID, Application)
REFERENCES dbo.Libraries(ID, Application)
Is that what you're using?? If (ID, Application)
is indeed the primary key on dbo.Libraries
, this statement should definitely work.
Luk: just to check - can you run this statement in your database and report back what the output is??
SELECT
tc.TABLE_NAME,
tc.CONSTRAINT_NAME,
ccu.COLUMN_NAME
FROM
INFORMATION_SCHEMA.TABLE_CONSTRAINTS tc
INNER JOIN
INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE ccu
ON ccu.TABLE_NAME = tc.TABLE_NAME AND ccu.CONSTRAINT_NAME = tc.CONSTRAINT_NAME
WHERE
tc.TABLE_NAME IN ('Libraries', 'Content')
It's fairly easy using the New-SelfSignedCertificate command in Powershell. Open powershell and run these 3 commands.
1) Create certificate:
$cert = New-SelfSignedCertificate -DnsName www.yourwebsite.com -Type CodeSigning -CertStoreLocation Cert:\CurrentUser\My2) set the password for it:
$CertPassword = ConvertTo-SecureString -String "my_passowrd" -Force –AsPlainText3) Export it:
Export-PfxCertificate -Cert "cert:\CurrentUser\My\$($cert.Thumbprint)" -FilePath "d:\selfsigncert.pfx" -Password $CertPassword
Your certificate selfsigncert.pfx will be located @ D:/
Optional step: You would also require to add certificate password to system environment variables. do so by entering below in cmd: setx CSC_KEY_PASSWORD "my_password"
Use this:
resourcesloader.class.getClassLoader().getResource("/path/to/file").**getPath();**
Silly question. Found that there's a
lsvirtualenv
command which lists all existing virtualenv.
select name, max(value)
from out_pumptable
group by name
Use the Figure.savefig()
method, like so:
ax = s.hist() # s is an instance of Series
fig = ax.get_figure()
fig.savefig('/path/to/figure.pdf')
It doesn't have to end in pdf
, there are many options. Check out the documentation.
Alternatively, you can use the pyplot
interface and just call the savefig
as a function to save the most recently created figure:
import matplotlib.pyplot as plt
s.hist()
plt.savefig('path/to/figure.pdf') # saves the current figure
Similar to unutbu's answer, you can use numpy's arange function, which is analog to Python's intrinsic function range
. Notice that the end point is not included, as in range
:
>>> import numpy as np
>>> a = np.arange(0,5, 0.5)
>>> a
array([ 0. , 0.5, 1. , 1.5, 2. , 2.5, 3. , 3.5, 4. , 4.5])
>>> a = np.arange(0,5, 0.5) # returns a numpy array
>>> a
array([ 0. , 0.5, 1. , 1.5, 2. , 2.5, 3. , 3.5, 4. , 4.5])
>>> a.tolist() # if you prefer it as a list
[0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5]
Make sure your AUTO_INCREMENT
is not out of range. In that case, set a new value for it with:
ALTER TABLE table_name AUTO_INCREMENT=100 -- Change 100 to the desired number
AUTO_INCREMENT
can contain a number that is bigger than the maximum value allowed by the datatype. This can happen if you filled up a table that you emptied afterward but the AUTO_INCREMENT
stayed the same, but there might be different reasons as well. In this case a new entry's id would be out of range.
If this is the cause of your problem, you can fix it by setting AUTO_INCREMENT
to one bigger than the latest row's id. So if your latest row's id is 100 then:
ALTER TABLE table_name AUTO_INCREMENT=101
If you would like to check AUTO_INCREMENT
's current value, use this command:
SELECT `AUTO_INCREMENT`
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = 'DatabaseName'
AND TABLE_NAME = 'TableName';
JSON does not know anything about dates. What .NET does is a non-standard hack/extension.
I would use a format that can be easily converted to a Date
object in JavaScript, i.e. one that can be passed to new Date(...)
. The easiest and probably most portable format is the timestamp containing milliseconds since 1970.
Or you could use
show tables where Tables_in_{insert_db_name}='tablename';
You have a lot of type-mismatches in your code such as trying to put an int
value where BigDecimal
is required. The corrected version of your code:
public class Payment
{
BigDecimal itemCost = BigDecimal.ZERO;
BigDecimal totalCost = BigDecimal.ZERO;
public BigDecimal calculateCost(int itemQuantity, BigDecimal itemPrice)
{
itemCost = itemPrice.multiply(new BigDecimal(itemQuantity));
totalCost = totalCost.add(itemCost);
return totalCost;
}
}
New location for mysql config file is
/etc/mysql/mysql.conf.d/mysqld.cnf
I just used the following (seems to be much simpler):
element.blur();
element.focus();
In this case the event is triggered only if value was really changed just as you would trigger it by normal focus locus lost performed by user.
**
In addition to the answers in this thread, here is another detail that was not mentioned elsewhere. This expands on the answer by Brad Solomon
Unpacking with **
is also useful when using python str.format
.
This is somewhat similar to what you can do with python f-strings
f-string but with the added overhead of declaring a dict to hold the variables (f-string does not require a dict).
## init vars
ddvars = dict()
ddcalc = dict()
pass
ddvars['fname'] = 'Huomer'
ddvars['lname'] = 'Huimpson'
ddvars['motto'] = 'I love donuts!'
ddvars['age'] = 33
pass
ddcalc['ydiff'] = 5
ddcalc['ycalc'] = ddvars['age'] + ddcalc['ydiff']
pass
vdemo = []
## ********************
## single unpack supported in py 2.7
vdemo.append('''
Hello {fname} {lname}!
Today you are {age} years old!
We love your motto "{motto}" and we agree with you!
'''.format(**ddvars))
pass
## ********************
## multiple unpack supported in py 3.x
vdemo.append('''
Hello {fname} {lname}!
In {ydiff} years you will be {ycalc} years old!
'''.format(**ddvars,**ddcalc))
pass
## ********************
print(vdemo[-1])
>>> import math
>>> import numpy as np
>>> import scipy
>>> math.pi == np.pi == scipy.pi
True
So it doesn't matter, they are all the same value.
The only reason all three modules provide a pi
value is so if you are using just one of the three modules, you can conveniently have access to pi without having to import another module. They're not providing different values for pi.
I found this checkerboard pattern (as a subset of the zebra stripe) to be a pleasant way to display a two-column table. This is written using LESS CSS, and keys all colors off the base color.
@base-color: #0000ff;
@row-color: lighten(@base-color, 40%);
@other-row: darken(@row-color, 10%);
tbody {
td:nth-child(odd) { width: 45%; }
tr:nth-child(odd) > td:nth-child(odd) {
background: darken(@row-color, 0%); }
tr:nth-child(odd) > td:nth-child(even) {
background: darken(@row-color, 7%); }
tr:nth-child(even) > td:nth-child(odd) {
background: darken(@other-row, 0%); }
tr:nth-child(even) > td:nth-child(even) {
background: darken(@other-row, 7%); }
}
Note I've dropped the .table-striped
, but doesn't seem to matter.
Looks like:
$.each($('.fetch_results input'), function(idx, input){
$(input).val('');
});
Add a background-color to the element and you will nicely see the difference of inline vs. block, as explained by the other posters.
In general you just have to define a slightly transparent color when creating the shape.
You can achieve that by setting the colors alpha channel.
#FF000000
will get you a solid black whereas #00000000
will get you a 100% transparent black (well it isn't black anymore obviously).
The color scheme is like this #AARRGGBB
there A stands for alpha channel, R stands for red, G for green and B for blue.
The same thing applies if you set the color in Java. There it will only look like 0xFF000000
.
UPDATE
In your case you'd have to add a solid
node. Like below.
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/shape_my">
<stroke android:width="4dp" android:color="#636161" />
<padding android:left="20dp"
android:top="20dp"
android:right="20dp"
android:bottom="20dp" />
<corners android:radius="24dp" />
<solid android:color="#88000000" />
</shape>
The color here is a half transparent black.
Came across this question, so here's a quick comparison. Compare these two different ways to extract one frame per minute from a video 38m07s long:
time ffmpeg -i input.mp4 -filter:v fps=fps=1/60 ffmpeg_%0d.bmp
1m36.029s
This takes long because ffmpeg parses the entire video file to get the desired frames.
time for i in {0..39} ; do ffmpeg -accurate_seek -ss `echo $i*60.0 | bc` -i input.mp4 -frames:v 1 period_down_$i.bmp ; done
0m4.689s
This is about 20 times faster. We use fast seeking to go to the desired time index and extract a frame, then call ffmpeg several times for every time index. Note that -accurate_seek
is the default
, and make sure you add -ss
before the input video -i
option.
Note that it's better to use -filter:v -fps=fps=...
instead of -r
as the latter may be inaccurate. Although the ticket is marked as fixed, I still did experience some issues, so better play it safe.
- There are many examples of functions that I know will never throw, but for which the compiler cannot determine so on its own. Should I append noexcept to the function declaration in all such cases?
noexcept
is tricky, as it is part of the functions interface. Especially, if you are writing a library, your client code can depend on the noexcept
property. It can be difficult to change it later, as you might break existing code. That might be less of a concern when you are implementing code that is only used by your application.
If you have a function that cannot throw, ask yourself whether it will like stay noexcept
or would that restrict future implementations? For example, you might want to introduce error checking of illegal arguments by throwing exceptions (e.g., for unit tests), or you might depend on other library code that could change its exception specification. In that case, it is safer to be conservative and omit noexcept
.
On the other hand, if you are confident that the function should never throw and it is correct that it is part of the specification, you should declare it noexcept
. However, keep in mind that the compiler will not be able to detect violations of noexcept
if your implementation changes.
- For which situations should I be more careful about the use of noexcept, and for which situations can I get away with the implied noexcept(false)?
There are four classes of functions that should you should concentrate on because they will likely have the biggest impact:
noexcept(true)
unless you make them noexcept(false)
)These functions should generally be noexcept
, and it is most likely that library implementations can make use of the noexcept
property. For example, std::vector
can use non-throwing move operations without sacrificing strong exception guarantees. Otherwise, it will have to fall back to copying elements (as it did in C++98).
This kind of optimization is on the algorithmic level and does not rely on compiler optimizations. It can have a significant impact, especially if the elements are expensive to copy.
- When can I realistically expect to observe a performance improvement after using noexcept? In particular, give an example of code for which a C++ compiler is able to generate better machine code after the addition of noexcept.
The advantage of noexcept
against no exception specification or throw()
is that the standard allows the compilers more freedom when it comes to stack unwinding. Even in the throw()
case, the compiler has to completely unwind the stack (and it has to do it in the exact reverse order of the object constructions).
In the noexcept
case, on the other hand, it is not required to do that. There is no requirement that the stack has to be unwound (but the compiler is still allowed to do it). That freedom allows further code optimization as it lowers the overhead of always being able to unwind the stack.
The related question about noexcept, stack unwinding and performance goes into more details about the overhead when stack unwinding is required.
I also recommend Scott Meyers book "Effective Modern C++", "Item 14: Declare functions noexcept if they won't emit exceptions" for further reading.
I've seen goto used correctly but the situations are normaly ugly. It is only when the use of goto
itself is so much less worse than the original.
@Johnathon Holland the poblem is you're version is less clear. people seem to be scared of local variables:
void foo()
{
bool doAsuccess = doA();
bool doBsuccess = doAsuccess && doB();
bool doCsuccess = doBsuccess && doC();
if (!doCsuccess)
{
if (doBsuccess)
undoB();
if (doAsuccess)
undoA();
}
}
And I prefer loops like this but some people prefer while(true)
.
for (;;)
{
//code goes here
}
A major factor will be whether you're using a transactional engine and whether you have autocommit on.
Autocommit is on by default and you probably want to leave it on; therefore, each insert that you do does its own transaction. This means that if you do one insert per row, you're going to be committing a transaction for each row.
Assuming a single thread, that means that the server needs to sync some data to disc for EVERY ROW. It needs to wait for the data to reach a persistent storage location (hopefully the battery-backed ram in your RAID controller). This is inherently rather slow and will probably become the limiting factor in these cases.
I'm of course assuming that you're using a transactional engine (usually innodb) AND that you haven't tweaked the settings to reduce durability.
I'm also assuming that you're using a single thread to do these inserts. Using multiple threads muddies things a bit because some versions of MySQL have working group-commit in innodb - this means that multiple threads doing their own commits can share a single write to the transaction log, which is good because it means fewer syncs to persistent storage.
On the other hand, the upshot is, that you REALLY WANT TO USE multi-row inserts.
There is a limit over which it gets counter-productive, but in most cases it's at least 10,000 rows. So if you batch them up to 1,000 rows, you're probably safe.
If you're using MyISAM, there's a whole other load of things, but I'll not bore you with those. Peace.
Look in wp-includes/version.php
/**
* The WordPress version string
*
* @global string $wp_version
*/
$wp_version = '2.8.4';
I often have a need to combine date values from one place with time values for another. I wrote a helper function to accomplish this.
let startDateTimeComponents = NSDateComponents()
startDateTimeComponents.year = NSCalendar.currentCalendar().components(NSCalendarUnit.Year, fromDate: date).year
startDateTimeComponents.month = NSCalendar.currentCalendar().components(NSCalendarUnit.Month, fromDate: date).month
startDateTimeComponents.day = NSCalendar.currentCalendar().components(NSCalendarUnit.Day, fromDate: date).day
startDateTimeComponents.hour = NSCalendar.currentCalendar().components(NSCalendarUnit.Hour, fromDate: time).hour
startDateTimeComponents.minute = NSCalendar.currentCalendar().components(NSCalendarUnit.Minute, fromDate: time).minute
let startDateCalendar = NSCalendar(identifier: NSCalendarIdentifierGregorian)
combinedDateTime = startDateCalendar!.dateFromComponents(startDateTimeComponents)!
Use ng-bind-html this is only proper and simplest way
I guess I came a little late for this but I think the main problem here is that you're patching datetime.date.today directly and, according to the documentation, this is wrong.
You should patch the reference imported in the file where the tested function is, for example.
Let's say you have a functions.py file where you have the following:
import datetime
def get_today():
return datetime.date.today()
then, in your test, you should have something like this
import datetime
import unittest
from functions import get_today
from mock import patch, Mock
class GetTodayTest(unittest.TestCase):
@patch('functions.datetime')
def test_get_today(self, datetime_mock):
datetime_mock.date.today = Mock(return_value=datetime.strptime('Jun 1 2005', '%b %d %Y'))
value = get_today()
# then assert your thing...
Hope this helps a little bit.
This query is to convert the DateTimeOffset
into the format yyyyMMddhhss
with Offset. I have replaced the hyphens, colon(:), period(.)
from the data, and kept the hyphen for the seperation of Offset from the DateTime
.
SELECT REPLACE(SUBSTRING(CONVERT(VARCHAR(33),SYSDATETIMEOFFSET(),126), 1, 8), '-', '') +
SUBSTRING(REPLACE(REPLACE(REPLACE(CONVERT(VARCHAR(33), SYSDATETIMEOFFSET(), 126),'T',''),'.',''),':',''),9,DATALENGTH(CONVERT(VARCHAR(33), SYSDATETIMEOFFSET(), 126)))
Here, Python list of country codes, names, continents, capitals, and pytz timezones.
countries = [
{'timezones': ['Europe/Paris'], 'code': 'FR', 'continent': 'Europe', 'name': 'France', 'capital': 'Paris'}
{'timezones': ['Africa/Kampala'], 'code': 'UG', 'continent': 'Africa', 'name': 'Uganda', 'capital': 'Kampala'},
{'timezones': ['Asia/Colombo'], 'code': 'LK', 'continent': 'Asia', 'name': 'Sri Lanka', 'capital': 'Sri Jayewardenepura Kotte'},
{'timezones': ['Asia/Riyadh'], 'code': 'SA', 'continent': 'Asia', 'name': 'Saudi Arabia', 'capital': 'Riyadh'},
{'timezones': ['Africa/Luanda'], 'code': 'AO', 'continent': 'Africa', 'name': 'Angola', 'capital': 'Luanda'},
{'timezones': ['Europe/Vienna'], 'code': 'AT', 'continent': 'Europe', 'name': 'Austria', 'capital': 'Vienna'},
{'timezones': ['Asia/Calcutta'], 'code': 'IN', 'continent': 'Asia', 'name': 'India', 'capital': 'New Delhi'},
{'timezones': ['Asia/Dubai'], 'code': 'AE', 'continent': 'Asia', 'name': 'United Arab Emirates', 'capital': 'Abu Dhabi'},
{'timezones': ['Europe/London'], 'code': 'GB', 'continent': 'Europe', 'name': 'United Kingdom', 'capital': 'London'},
]
For full list : Gist Github
Hope, It helps.
You can use
git show -s --format=%s
Here --format
enables various printing options, see documentation here. Specifically, %s
means 'subject'. In addition, -s
stands for --no-patch
, which suppresses the diff content.
I often use
git show -s --format='%h %s'
where %h
denotes a short hash of the commit
Another way is
git show-branch --no-name HEAD
It seems to run faster than the other way.
I actually wrote a small tool to see the status of all my repos. You can find it on github.
By default, rails server uses port 3000.
So, you have 2 options to run rails server.
1. Either you can run the server on other port by defining custom port using the following command
rails s -p 3001
2. Or you can kill all the running ruby process by running following command
killall -9 ruby
then run rails server
Do this instead:
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td bgcolor="#7d9aaa" width="40%" style="color: #ffffff; font-size:15px; font-family:Arial, Helvetica, sans-serif; font-weight: bold; padding:12px;">
Order Confirmation
</td>
<td bgcolor="#7d9aaa" align="right" width="60%" style="color: #ffffff; font-size:15px; font-family:Arial, Helvetica, sans-serif; font-weight: bold; padding:12px;">
Your Confirmation number is {{var order.increment_id}}
</td>
</tr>
</table>
It is better to use two cells and align the content, than using large padding and
's.
This line is causing problems:
(-b+math.sqrt(b**2-4*a*c))/2*a
x/2*a
is interpreted as (x/2)*a
. You need more parentheses:
(-b + math.sqrt(b**2 - 4*a*c)) / (2 * a)
Also, if you're already storing d
, why not use it?
x = (-b + math.sqrt(d)) / (2 * a)
It happened to me also, but I got the problem solved. I was using an indentation of 5 spaces, but when I pressed tab, it used to put a four space indent. So I think you should just use one thing; i.e. either tab button to add indent or spaces. And an ideal indentation is one of 4 spaces. I found IntelliJ to be very useful for these sort of things.
You likely need to re-start VNC on both ends. i.e. when you say "restarted VNC", you probably just mean the client. But what about the other end? You likely need to re-start that end too. The root cause is likely a conflict. Many apps spy on the clipboard when they shouldn't. And many apps are not forgiving when they go to open the clipboard and can't. Robust ones will retry, others will simply not anticipate a failure and then they get fouled up and need to be restarted. Could be VNC, or it could be another app that's "listening" to the clipboard viewer chain, where it is obligated to pass along notifications to the other apps in the chain. If the notifications aren't sent, then VNC may not even know that there has been a clipboard update.
Perhaps not a "builtin", but I consider it builtin. anyways just use numpy
import numpy
prod_sum = numpy.prod(some_list)
You can use ng-value-true to tell angular that your ng-model is a string.
I could only get ng-true-value working if I added the extra quotes like so (as shown in the official Angular docs - https://docs.angularjs.org/api/ng/input/input%5Bcheckbox%5D)
ng-true-value="'1'"
Nowadays Java seems to be installed in /Library/Java/JavaVirtualMachines
According to the Twitter Bootstrap documentation: http://getbootstrap.com/css/#helper-classes-center
<!-- Button -->
<div class="form-group">
<label class="col-md-4 control-label" for="singlebutton"></label>
<div class="col-md-4 center-block">
<button id="singlebutton" name="singlebutton" class="btn btn-primary center-block">
Next Step!
</button>
</div>
</div>
All the class center-block
does is to tell the element to have a margin of 0 auto, the auto being the left/right margins. However, unless the class text-center or css text-align:center; is set on the parent, the element does not know the point to work out this auto calculation from so will not center itself as anticipated.
See an example of the code above here: https://jsfiddle.net/Seany84/2j9pxt1z/
this code works for me
name it cmd.bat
@echo off
title This is Only A Test
echo.
:Loop
set /p the="%cd%"
%the%
echo.
goto loop
Add a reference to the Outlook object model in the Visual Basic editor. Then you can use the code below to send an email using outlook.
Sub sendOutlookEmail()
Dim oApp As Outlook.Application
Dim oMail As MailItem
Set oApp = CreateObject("Outlook.application")
Set oMail = oApp.CreateItem(olMailItem)
oMail.Body = "Body of the email"
oMail.Subject = "Test Subject"
oMail.To = "[email protected]"
oMail.Send
Set oMail = Nothing
Set oApp = Nothing
End Sub
Install List::MoreUtils from CPAN
Then in your code:
use strict;
use warnings;
use List::MoreUtils qw(uniq);
my @dup_list = qw(1 1 1 2 3 4 4);
my @uniq_list = uniq(@dup_list);
Here is how I styled my colored buttons with an icon in the background
I used "background-color" property for the color and "background" property for the image.
<style>
.btn {
display: inline-block;
line-height: 1em;
padding: .1em .3em .15em 2em
border-radius: .2em;
border: 1px solid #d8d8d8;
background-color: #cccccc;
}
.thumb-up {
background: url('/icons/thumb-up.png') no-repeat 3px center;
}
.thumb-down {
background: url('/icons/thumb-down.png') no-repeat 3px center;
}
</style>
<span class="btn thumb-up">Thumb up</span>
<span class="btn thumb-down">Thumb down</span>
Just add position, right and top to your class .close-image
.close-image {
cursor: pointer;
display: block;
float: right;
z-index: 3;
position: absolute; /*newly added*/
right: 5px; /*newly added*/
top: 5px;/*newly added*/
}
I got a solution that plays nice with bodyParser, using the verify
callback in bodyParser. In this code, I am using it to get a sha1 of the content and also getting the raw body.
app.use(bodyParser.json({
verify: function(req, res, buf, encoding) {
// sha1 content
var hash = crypto.createHash('sha1');
hash.update(buf);
req.hasha = hash.digest('hex');
console.log("hash", req.hasha);
// get rawBody
req.rawBody = buf.toString();
console.log("rawBody", req.rawBody);
}
}));
I am new in Node.js and express.js (started yesterday, literally!) so I'd like to hear comments on this solution.
In addition to what @ckal suggested, it is critical to give each renamed Configuration.cs its own namespace. If you do not, EF will attempt to apply migrations to the wrong context.
Here are the specific steps that work well for me.
If Migrations are messed up and you want to create a new "baseline":
Creating the initial migration:
In Package Manager Console:
Enable-Migrations -EnableAutomaticMigrations -ContextTypeName
NamespaceOfContext.ContextA -ProjectName ProjectContextIsInIfNotMainOne
-StartupProjectName NameOfMainProject -ConnectionStringName ContextA
In Solution Explorer: Rename Migrations.Configuration.cs to Migrations.ConfigurationA.cs. This should automatically rename the constructor if using Visual Studio. Make sure it does. Edit ConfigurationA.cs: Change the namespace to NamespaceOfContext.Migrations.MigrationsA
Enable-Migrations -EnableAutomaticMigrations -ContextTypeName
NamespaceOfContext.ContextB -ProjectName ProjectContextIsInIfNotMainOne
-StartupProjectName NameOfMainProject -ConnectionStringName ContextB
In Solution Explorer: Rename Migrations.Configuration.cs to Migrations.ConfigurationB.cs. Again, make sure the constructor is also renamed appropriately. Edit ConfigurationB.cs: Change the namespace to NamespaceOfContext.Migrations.MigrationsB
add-migration InitialBSchema -IgnoreChanges -ConfigurationTypeName
ConfigurationB -ProjectName ProjectContextIsInIfNotMainOne
-StartupProjectName NameOfMainProject -ConnectionStringName ContextB
Update-Database -ConfigurationTypeName ConfigurationB -ProjectName
ProjectContextIsInIfNotMainOne -StartupProjectName NameOfMainProject
-ConnectionStringName ContextB
add-migration InitialSurveySchema -IgnoreChanges -ConfigurationTypeName
ConfigurationA -ProjectName ProjectContextIsInIfNotMainOne -StartupProjectName
NameOfMainProject -ConnectionStringName ContextA
Update-Database -ConfigurationTypeName ConfigurationA -ProjectName
ProjectContextIsInIfNotMainOne -StartupProjectName NameOfMainProject
-ConnectionStringName ContextA
Steps to create migration scripts in Package Manager Console:
Run command
Add-Migration MYMIGRATION -ConfigurationTypeName ConfigurationA -ProjectName
ProjectContextIsInIfNotMainOne -StartupProjectName NameOfMainProject
-ConnectionStringName ContextA
or -
Add-Migration MYMIGRATION -ConfigurationTypeName ConfigurationB -ProjectName
ProjectContextIsInIfNotMainOne -StartupProjectName NameOfMainProject
-ConnectionStringName ContextB
It is OK to re-run this command until changes are applied to the DB.
Either run the scripts against the desired local database, or run Update-Database without -Script to apply locally:
Update-Database -ConfigurationTypeName ConfigurationA -ProjectName
ProjectContextIsInIfNotMainOne -StartupProjectName NameOfMainProject
-ConnectionStringName ContextA
or -
Update-Database -ConfigurationTypeName ConfigurationB -ProjectName
ProjectContextIsInIfNotMainOne -StartupProjectName NameOfMainProject
-ConnectionStringName ContextB
Here is a short code snippet for shadowing cin/cout useful for programming contests:
#include <bits/stdc++.h>
using namespace std;
int main() {
ifstream cin("input.txt");
ofstream cout("output.txt");
int a, b;
cin >> a >> b;
cout << a + b << endl;
}
This gives additional benefit that plain fstreams are faster than synced stdio streams. But this works only for the scope of single function.
Global cin/cout redirect can be written as:
#include <bits/stdc++.h>
using namespace std;
void func() {
int a, b;
std::cin >> a >> b;
std::cout << a + b << endl;
}
int main() {
ifstream cin("input.txt");
ofstream cout("output.txt");
// optional performance optimizations
ios_base::sync_with_stdio(false);
std::cin.tie(0);
std::cin.rdbuf(cin.rdbuf());
std::cout.rdbuf(cout.rdbuf());
func();
}
Note that ios_base::sync_with_stdio
also resets std::cin.rdbuf
. So the order matters.
See also Significance of ios_base::sync_with_stdio(false); cin.tie(NULL);
Std io streams can also be easily shadowed for the scope of single file, which is useful for competitive programming:
#include <bits/stdc++.h>
using std::endl;
std::ifstream cin("input.txt");
std::ofstream cout("output.txt");
int a, b;
void read() {
cin >> a >> b;
}
void write() {
cout << a + b << endl;
}
int main() {
read();
write();
}
But in this case we have to pick std
declarations one by one and avoid using namespace std;
as it would give ambiguity error:
error: reference to 'cin' is ambiguous
cin >> a >> b;
^
note: candidates are:
std::ifstream cin
ifstream cin("input.txt");
^
In file test.cpp
std::istream std::cin
extern istream cin; /// Linked to standard input
^
See also How do you properly use namespaces in C++?, Why is "using namespace std" considered bad practice? and How to resolve a name collision between a C++ namespace and a global function?
I think what you are looking for is
Request.QueryString["QueryStringName"]
and you can access it on views by adding @
now look at my example,,, I generated a Url with QueryString
var listURL = '@Url.RouteUrl(new { controller = "Sector", action = "List" , name = Request.QueryString["name"]})';
the listURL value is /Sector/List?name=value'
and when queryString
is empty
listURL value is /Sector/List
Call window
as a function.
driver.manage().window().maximize();
I needed to unset $PGUSER
:
$ unset PGUSER
$ createuser -s postgres
I've written a script to get all child process pids of a parent process. Here is the code. Hope it will help.
function getcpid() {
cpids=`pgrep -P $1|xargs`
# echo "cpids=$cpids"
for cpid in $cpids;
do
echo "$cpid"
getcpid $cpid
done
}
getcpid $1
using(NoGateway objNoGateway = new NoGateway())
is equivalent to
try
{
NoGateway = new NoGateway();
}
finally
{
NoGateway.Dispose();
}
A finalizer is called upon the GC destroying your object. This can be at a totally different time than when you leave your method. The Dispose of IDisposable is called immediately after you leave the using block. Hence the pattern is usually to use using to free ressources immediately after you don't need them anymore.
I have had this problem frequently with multiple concurrent goroutines.
It may or may not be a good pattern, but I define a a struct for my workers with a quit channel and field for the worker state:
type Worker struct {
data chan struct
quit chan bool
stopped bool
}
Then you can have a controller call a stop function for the worker:
func (w *Worker) Stop() {
w.quit <- true
w.stopped = true
}
func (w *Worker) eventloop() {
for {
if w.Stopped {
return
}
select {
case d := <-w.data:
//DO something
if w.Stopped {
return
}
case <-w.quit:
return
}
}
}
This gives you a pretty good way to get a clean stop on your workers without anything hanging or generating errors, which is especially good when running in a container.
You cannot always make a branch or pull an existing branch and push back to it, because you are not registered as a collaborator for that specific project.
Forking is nothing more than a clone on the GitHub server side:
You keep a fork in sync with the original project by:
The rebase allows you to make sure your changes are straightforward (no merge conflict to handle), making your pulling request that more easy when you want the maintainer of the original project to include your patches in his project.
The goal is really to allow collaboration even though direct participation is not always possible.
The fact that you clone on the GitHub side means you have now two "central" repository ("central" as "visible from several collaborators).
If you can add them directly as collaborator for one project, you don't need to manage another one with a fork.
The merge experience would be about the same, but with an extra level of indirection (push first on the fork, then ask for a pull, with the risk of evolutions on the original repo making your fast-forward merges not fast-forward anymore).
That means the correct workflow is to git pull --rebase upstream
(rebase your work on top of new commits from upstream), and then git push --force origin
, in order to rewrite the history in such a way your own commits are always on top of the commits from the original (upstream) repo.
See also:
You don't need to send messages.
Add an event to the one form and an event handler to the other. Then you can use a third project which references the other two to attach the event handler to the event. The two DLLs don't need to reference each other for this to work.
List<Class1> list = new List<Class1>();
int index = list.FindIndex(item => item.Number == textBox6.Text);
Class1 newItem = new Class1();
newItem.Prob1 = "SomeValue";
list[index] = newItem;
Execute this at the terminal to see conflicting configurations listening to the same port:
grep -R default_server /etc/nginx
Popen.communicate
will set the returncode
attribute when it's done(*). Here's the relevant documentation section:
Popen.returncode
The child return code, set by poll() and wait() (and indirectly by communicate()).
A None value indicates that the process hasn’t terminated yet.
A negative value -N indicates that the child was terminated by signal N (Unix only).
So you can just do (I didn't test it but it should work):
import subprocess as sp
child = sp.Popen(openRTSP + opts.split(), stdout=sp.PIPE)
streamdata = child.communicate()[0]
rc = child.returncode
(*) This happens because of the way it's implemented: after setting up threads to read the child's streams, it just calls wait
.
tl;dr What to do in modern (2018) times? Assume tel:
is supported, use it and forget about anything else.
The tel:
URI scheme RFC5431 (as well as sms:
but also feed:
, maps:
, youtube:
and others) is handled by protocol handlers (as mailto:
and http:
are).
They're unrelated to HTML5 specification (it has been out there from 90s and documented first time back in 2k with RFC2806) then you can't check for their support using tools as modernizr. A protocol handler may be installed by an application (for example Skype installs a callto:
protocol handler with same meaning and behaviour of tel:
but it's not a standard), natively supported by browser or installed (with some limitations) by website itself.
What HTML5 added is support for installing custom web based protocol handlers (with registerProtocolHandler()
and related functions) simplifying also the check for their support through isProtocolHandlerRegistered()
function.
There is some easy ways to determine if there is an handler or not:" How to detect browser's protocol handlers?).
In general what I suggest is:
tel:
is supported (yes, it's not true for very old devices but IMO you can ignore them).tel:
isn't supported then change links to use callto:
and repeat check desctibed in 3.tel:
and callto:
aren't supported (or - in a desktop browser - you can't detect their support) then simply remove that link replacing URL in href
with javascript:void(0)
and (if number isn't repeated in text span) putting, telephone number in title
. Here HTML5 microdata won't help users (just search engines). Note that newer versions of Skype handle both callto:
and tel:
.Please note that (at least on latest Windows versions) there is always a - fake - registered protocol handler called App Picker (that annoying window that let you choose with which application you want to open an unknown file). This may vanish your tests so if you don't want to handle Windows environment as a special case you can simplify this process as:
tel:
is supported.tel:
with callto:
.tel:
or leave it as is (assuming there are good chances Skype is installed).Add:
using System.Linq;
to the top of your file.
And then:
Car[] carList = ...
var carMake =
from item in carList
where item.Model == "bmw"
select item.Make;
or if you prefer the fluent syntax:
var carMake = carList
.Where(item => item.Model == "bmw")
.Select(item => item.Make);
Things to pay attention to:
item.Make
in the select
clause instead if s.Make
as in your code.item
and .Model
in your where
clauseUse g++
g++ -o hi hi.cpp
g++ is for C++, gcc is for C although with the -libstdc++ you can compile c++ most people don't do this.
I have also used following link as others have suggested you for bluetooth communication.
http://developer.android.com/guide/topics/connectivity/bluetooth.html
The thing is all you need is a class BluetoothChatService.java
this class has following threads:
Now when you call start function of the BluetoothChatService like:
mChatService.start();
It starts accept thread which means it will start looking for connection.
Now when you call
mChatService.connect(<deviceObject>,false/true);
Here first argument is device object that you can get from paired devices list or when you scan for devices you will get all the devices in range you can pass that object to this function and 2nd argument is a boolean to make secure or insecure connection.
connect
function will start connecting thread which will look for any device which is running accept thread.
When such a device is found both accept thread and connecting thread will call connected function in BluetoothChatService:
connected(mmSocket, mmDevice, mSocketType);
this method starts connected thread in both the devices:
Using this socket object connected thread obtains the input and output stream to the other device.
And calls read
function on inputstream in a while loop so that it's always trying read from other device so that whenever other device send a message this read function returns that message.
BluetoothChatService also has a write
method which takes byte[]
as input and calls write method on connected thread.
mChatService.write("your message".getByte());
write method in connected thread just write this byte data to outputsream of the other device.
public void write(byte[] buffer) {
try {
mmOutStream.write(buffer);
// Share the sent message back to the UI Activity
// mHandler.obtainMessage(
// BluetoothGameSetupActivity.MESSAGE_WRITE, -1, -1,
// buffer).sendToTarget();
} catch (IOException e) {
Log.e(TAG, "Exception during write", e);
}
}
Now to communicate between two devices just call write function on mChatService and handle the message that you will receive on the other device.
I removed your document.getElementById("Save").onclick =
before your functions, because it's an event already being called on your button. I also had to call the two functions separately by the onclick event.
<!DOCTYPE html>
<html>
<head>
<script>
function fun()
{
alert("hello");
//validation code to see State field is mandatory.
}
function f1()
{
alert("f1 called");
//form validation that recalls the page showing with supplied inputs.
}
</script>
</head>
<body>
<form name="form1" id="form1" method="post">
State:
<select id="state ID">
<option></option>
<option value="ap">ap</option>
<option value="bp">bp</option>
</select>
</form>
<table><tr><td id="Save" onclick="f1(); fun();">click</td></tr></table>
</body>
</html>
In R, we can use the functions mGCD(x) and mLCM(x) from the package numbers, to compute the greatest common divisor and least common multiple for all numbers in the integer vector x together:
library(numbers)
mGCD(c(4, 8, 12, 16, 20))
[1] 4
mLCM(c(8,9,21))
[1] 504
# Sequences
mLCM(1:20)
[1] 232792560
If you only want the orientation tag and nothing else and don't like to include another huge javascript library I wrote a little code that extracts the orientation tag as fast as possible (It uses DataView and readAsArrayBuffer
which are available in IE10+, but you can write your own data reader for older browsers):
function getOrientation(file, callback) {_x000D_
var reader = new FileReader();_x000D_
reader.onload = function(e) {_x000D_
_x000D_
var view = new DataView(e.target.result);_x000D_
if (view.getUint16(0, false) != 0xFFD8)_x000D_
{_x000D_
return callback(-2);_x000D_
}_x000D_
var length = view.byteLength, offset = 2;_x000D_
while (offset < length) _x000D_
{_x000D_
if (view.getUint16(offset+2, false) <= 8) return callback(-1);_x000D_
var marker = view.getUint16(offset, false);_x000D_
offset += 2;_x000D_
if (marker == 0xFFE1) _x000D_
{_x000D_
if (view.getUint32(offset += 2, false) != 0x45786966) _x000D_
{_x000D_
return callback(-1);_x000D_
}_x000D_
_x000D_
var little = view.getUint16(offset += 6, false) == 0x4949;_x000D_
offset += view.getUint32(offset + 4, little);_x000D_
var tags = view.getUint16(offset, little);_x000D_
offset += 2;_x000D_
for (var i = 0; i < tags; i++)_x000D_
{_x000D_
if (view.getUint16(offset + (i * 12), little) == 0x0112)_x000D_
{_x000D_
return callback(view.getUint16(offset + (i * 12) + 8, little));_x000D_
}_x000D_
}_x000D_
}_x000D_
else if ((marker & 0xFF00) != 0xFF00)_x000D_
{_x000D_
break;_x000D_
}_x000D_
else_x000D_
{ _x000D_
offset += view.getUint16(offset, false);_x000D_
}_x000D_
}_x000D_
return callback(-1);_x000D_
};_x000D_
reader.readAsArrayBuffer(file);_x000D_
}_x000D_
_x000D_
// usage:_x000D_
var input = document.getElementById('input');_x000D_
input.onchange = function(e) {_x000D_
getOrientation(input.files[0], function(orientation) {_x000D_
alert('orientation: ' + orientation);_x000D_
});_x000D_
}
_x000D_
<input id='input' type='file' />
_x000D_
values:
-2: not jpeg
-1: not defined
For those using Typescript, you can use the following code:
export const getOrientation = (file: File, callback: Function) => {
var reader = new FileReader();
reader.onload = (event: ProgressEvent) => {
if (! event.target) {
return;
}
const file = event.target as FileReader;
const view = new DataView(file.result as ArrayBuffer);
if (view.getUint16(0, false) != 0xFFD8) {
return callback(-2);
}
const length = view.byteLength
let offset = 2;
while (offset < length)
{
if (view.getUint16(offset+2, false) <= 8) return callback(-1);
let marker = view.getUint16(offset, false);
offset += 2;
if (marker == 0xFFE1) {
if (view.getUint32(offset += 2, false) != 0x45786966) {
return callback(-1);
}
let little = view.getUint16(offset += 6, false) == 0x4949;
offset += view.getUint32(offset + 4, little);
let tags = view.getUint16(offset, little);
offset += 2;
for (let i = 0; i < tags; i++) {
if (view.getUint16(offset + (i * 12), little) == 0x0112) {
return callback(view.getUint16(offset + (i * 12) + 8, little));
}
}
} else if ((marker & 0xFF00) != 0xFF00) {
break;
}
else {
offset += view.getUint16(offset, false);
}
}
return callback(-1);
};
reader.readAsArrayBuffer(file);
}
If you want to get the indices of the largest n
numbers in a list called data
, you can use Pandas sort_values
:
pd.Series(data).sort_values(ascending=False).index[0:n]
you can try the following code
protected void Button1_Click(object sender, EventArgs e)
{
DataTable dt = new DataTable();
if (dt.Columns.Count == 0)
{
dt.Columns.Add("PayScale", typeof(string));
dt.Columns.Add("IncrementAmt", typeof(string));
dt.Columns.Add("Period", typeof(string));
}
DataRow NewRow = dt.NewRow();
NewRow[0] = TextBox1.Text;
NewRow[1] = TextBox2.Text;
dt.Rows.Add(NewRow);
GridView1.DataSource = dt;
GridViewl.DataBind();
}
here payscale,incrementamt and period are database field name.