you are getting math domain error for either one of the reason : either you are trying to use a negative number inside log function or a zero value.
To Whom, deailing with share hosting environment and still chance to have Current PHP less than 7.0
Who does not have dirname( __FILE__, 2 );
it is possible to use following.
function dirname_safe($path, $level = 0){
$dir = explode(DIRECTORY_SEPARATOR, $path);
$level = $level * -1;
if($level == 0) $level = count($dir);
array_splice($dir, $level);
return implode($dir, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR;
}
print_r(dirname_safe(__DIR__, 2));
{ "date" : "1000000" }
in your Mongo doc seems suspect. Since it's a number, it should be { date : 1000000 }
It's probably a type mismatch. Try post.findOne({date: "1000000"}, callback)
and if that works, you have a typing issue.
A framework or other similar schema will run/interpret a script to do a task. A program is compiled and run by a machine to do a task
:
is the delimiter of the slice syntax to 'slice out' sub-parts in sequences , [start:end]
[1:5] is equivalent to "from 1 to 5" (5 not included)
[1:] is equivalent to "1 to end"
[len(a):] is equivalent to "from length of a to end"
Watch https://youtu.be/tKTZoB2Vjuk?t=41m40s at around 40:00 he starts explaining that.
Works with tuples and strings, too.
You certainly are able to have multiple CTEs in a single query expression. You just need to separate them with a comma. Here is an example. In the example below, there are two CTEs. One is named CategoryAndNumberOfProducts
and the second is named ProductsOverTenDollars
.
WITH CategoryAndNumberOfProducts (CategoryID, CategoryName, NumberOfProducts) AS
(
SELECT
CategoryID,
CategoryName,
(SELECT COUNT(1) FROM Products p
WHERE p.CategoryID = c.CategoryID) as NumberOfProducts
FROM Categories c
),
ProductsOverTenDollars (ProductID, CategoryID, ProductName, UnitPrice) AS
(
SELECT
ProductID,
CategoryID,
ProductName,
UnitPrice
FROM Products p
WHERE UnitPrice > 10.0
)
SELECT c.CategoryName, c.NumberOfProducts,
p.ProductName, p.UnitPrice
FROM ProductsOverTenDollars p
INNER JOIN CategoryAndNumberOfProducts c ON
p.CategoryID = c.CategoryID
ORDER BY ProductName
You can have very clean code, i had similar problems and i solved it by using :
var a="bcd";
~~parseInt(a);
TextInputLayout til = (TextInputLayout)editText.getParent();
til.setErrorEnabled(true);
til.setError("some error..");
use the include is the easiest way as per
http://www.vistax64.com/powershell/168315-get-childitem-filter-files-multiple-extensions.html
Any identifier of the form __name
(at least two leading underscores, at most one trailing underscore) is publicly replaced with _classname__name
, where classname
is the current class name with leading underscore(s) stripped.
Therefore, __name
is private, while _classname__name
is public.
https://docs.python.org/3/tutorial/classes.html#tut-private
class Cat:
def __init__(self, name='unnamed'):
self.name = name
def __print_my_name(self):
print(self.name)
tom = Cat()
tom.__print_my_name() #Error
tom._Cat__print_my_name() #Prints name
The accepted answer did not work for me. The Date returned is always the local Date and not the Date for the original Time Zone. I live in UTC+2.
//This did not work for me
Date.from(java.time.ZonedDateTime.now().toInstant());
I have come up with two alternative ways to get the correct Date from a ZonedDateTime.
Say you have this ZonedDateTime for Hawaii
LocalDateTime ldt = LocalDateTime.now();
ZonedDateTime zdt = ldt.atZone(ZoneId.of("US/Hawaii"); // UTC-10
or for UTC as asked originally
Instant zulu = Instant.now(); // GMT, UTC+0
ZonedDateTime zdt = zulu.atZone(ZoneId.of("UTC"));
Alternative 1
We can use java.sql.Timestamp. It is simple but it will probably also make a dent in your programming integrity
Date date1 = Timestamp.valueOf(zdt.toLocalDateTime());
Alternative 2
We create the Date from millis (answered here earlier). Note that local ZoneOffset is a must.
ZoneOffset localOffset = ZoneOffset.systemDefault().getRules().getOffset(LocalDateTime.now());
long zonedMillis = 1000L * zdt.toLocalDateTime().toEpochSecond(localOffset) + zdt.toLocalDateTime().getNano() / 1000000L;
Date date2 = new Date(zonedMillis);
You could configure compiling sources using different JDK with maven-compiler-plugin
.
Just specify path to javac
in <executable>
tag. E.g for java11 it looks like:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<source>11</source>
<target>11</target>
<fork>true</fork>
<executable>C:\Program Files\Java\jdk-11.0.1\bin\javac</executable> <!--PATH TO JAVAC -->
</configuration>
</plugin>
In case you are working with seaborn plots, instead of Matplotlib, you can save a .png image like this:
Let's suppose you have a matrix
object (either Pandas or NumPy), and you want to take a heatmap:
import seaborn as sb
image = sb.heatmap(matrix) # This gets you the heatmap
image.figure.savefig("C:/Your/Path/ ... /your_image.png") # This saves it
This code is compatible with the latest version of Seaborn. Other code around Stack Overflow worked only for previous versions.
Another way I like is this. I set the size of the next image as follows:
plt.subplots(figsize=(15,15))
And then later I plot the output in the console, from which I can copy-paste it where I want. (Since Seaborn is built on top of Matplotlib, there will not be any problem.)
The problem with your code is that you are selecting the .remode_hover
that is a descendant of .remode_selected
. So the first part of getting your code to work correctly is by removing that space
.reMode_selected.reMode_hover:hover
Then, in order to get the style to not work, you have to override the style set by the :hover
. In other words, you need to counter the background-color
property. So the final code will be
.reMode_selected.reMode_hover:hover {
background-color:inherit;
}
.reMode_hover:hover {
background-color: #f0ac00;
}
An alternative method would be to use :not()
, as stated by others. This will return any element that doesn't have the class or property stated inside the parenthesis. In this case, you would put .remode_selected
in there. This will target all elements that don't have a class of .remode_selected
However, I would not recommend this method, because of the fact that it was introduced in CSS3, so browser support is not ideal.
A third method would be to use jQuery. You can target the .not()
selector, which would be similar to using :not()
in CSS, but with much better browser support
The best way to use https and avoid security issues is to use Firefox (or another tool) and download the certificate to your server. This webpage helped me a lot, and these were the steps that worked for me:
1) Open in Firefox the URL you're gonna use with CURL
2) On the address bar click on the padlock
> more information
(FF versions can have different menus, just find it). Click the View certificate button > Details
tab.
3) Highlight the "right" certificate in Certificate hierarchy
. In my case it was the second of three, called "cPanel, Inc. Certification Authority". I just discovered the right one by "trial and error" method.
4) Click the Export button. In my case the one who worked was the file type "PEM with chains" (again by trial and error method).
5) Then in your PHP script add:
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_CAINFO, [PATH_TO_CRT_FILE]);
In addition I'd say that we must pay attention on the fact that these steps will probably need to be redone once a year or whenever the URL certificate is replaced or renewed.
To hide the element visually, but keep it in the html, you can use:
<div style='visibility:hidden; overflow:hidden; height:0; width:0;'>
[content]
</div>
or
<div style='visibility:hidden; overflow:hidden; position:absolute;'>
[content]
</div>
What may go wrong with display:none
? It removes the element completely from the html, so some functionalities may be broken if they need to access something in the hidden element.
You can use this dummy plugin:
mvn archetype:generate -DgroupId=org.eclipse.m2e -DartifactId=lifecycle-mapping -Dversion=1.0.0 -DarchetypeArtifactId=maven-archetype-mojo
After generating the project install/deploy it.
There is no baked-in equivalent CopyFile function in the APIs. But sendfile can be used to copy a file in kernel mode which is a faster and better solution (for numerous reasons) than opening a file, looping over it to read into a buffer, and writing the output to another file.
Update:
As of Linux kernel version 2.6.33, the limitation requiring the output of sendfile
to be a socket was lifted and the original code would work on both Linux and — however, as of OS X 10.9 Mavericks, sendfile
on OS X now requires the output to be a socket and the code won't work!
The following code snippet should work on the most OS X (as of 10.5), (Free)BSD, and Linux (as of 2.6.33). The implementation is "zero-copy" for all platforms, meaning all of it is done in kernelspace and there is no copying of buffers or data in and out of userspace. Pretty much the best performance you can get.
#include <fcntl.h>
#include <unistd.h>
#if defined(__APPLE__) || defined(__FreeBSD__)
#include <copyfile.h>
#else
#include <sys/sendfile.h>
#endif
int OSCopyFile(const char* source, const char* destination)
{
int input, output;
if ((input = open(source, O_RDONLY)) == -1)
{
return -1;
}
if ((output = creat(destination, 0660)) == -1)
{
close(input);
return -1;
}
//Here we use kernel-space copying for performance reasons
#if defined(__APPLE__) || defined(__FreeBSD__)
//fcopyfile works on FreeBSD and OS X 10.5+
int result = fcopyfile(input, output, 0, COPYFILE_ALL);
#else
//sendfile will work with non-socket output (i.e. regular file) on Linux 2.6.33+
off_t bytesCopied = 0;
struct stat fileinfo = {0};
fstat(input, &fileinfo);
int result = sendfile(output, input, &bytesCopied, fileinfo.st_size);
#endif
close(input);
close(output);
return result;
}
EDIT: Replaced the opening of the destination with the call to creat()
as we want the flag O_TRUNC
to be specified. See comment below.
Doesn't answer the question directly, but I found this question when searching for a way to, basically, not re-enter the password every single time I pull on a remote server.
Well, git
allows you to cache your credentials for a finite amount of time. It's customizable in git config
and this page explains it very well:
https://help.github.com/articles/caching-your-github-password-in-git/#platform-linux
In a terminal, run:
$ git config --global credential.helper cache
# Set git to use the credential memory cache
To customize the cache timeout, you can do:
$ git config --global credential.helper 'cache --timeout=3600'
# Set the cache to timeout after 1 hour (setting is in seconds)
Your credentials will then be stored in-memory for the requested amount of time.
A cherry-pick is basically a commit, so if you want to undo it, you just undo the commit.
when I have other local changes
Stash your current changes so you can reapply them after resetting the commit.
$ git stash
$ git reset --hard HEAD^
$ git stash pop # or `git stash apply`, if you want to keep the changeset in the stash
when I have no other local changes
$ git reset --hard HEAD^
While you really shouldn't use scanf()
for this sort of thing, because there are much better calls such as gets()
or getline()
, it can be done:
#include <stdio.h>
char* scan_line(char* buffer, int buffer_size);
char* scan_line(char* buffer, int buffer_size) {
char* p = buffer;
int count = 0;
do {
char c;
scanf("%c", &c); // scan a single character
// break on end of line, string terminating NUL, or end of file
if (c == '\r' || c == '\n' || c == 0 || c == EOF) {
*p = 0;
break;
}
*p++ = c; // add the valid character into the buffer
} while (count < buffer_size - 1); // don't overrun the buffer
// ensure the string is null terminated
buffer[buffer_size - 1] = 0;
return buffer;
}
#define MAX_SCAN_LENGTH 1024
int main()
{
char s[MAX_SCAN_LENGTH];
printf("Enter a string: ");
scan_line(s, MAX_SCAN_LENGTH);
printf("got: \"%s\"\n\n", s);
return 0;
}
You can simply use fetch with the cache option set to 'reload'
to update the cache:
fetch("my-image-url.jpg", {cache: 'reload', mode: 'no-cors'})
These days the fetch API is available almost everywhere (except on IE, of course).
As always you will find detailed information on how to use the fetch API on MDN.
2019 ECMA5 Solution:
const new_arr = arr.reduce((d, i, idx, l) => idx < l.length - 1 ? [...d, i] : d, [])
Non destructive, generic, one-liner and only requires a copy & paste at the end of your array.
ssh [email protected]
. This should provide you with shell access to the Ubuntu server.sudo service mysql restart
should do the job.If your mySQL service is named something else like mysqld
you may have to change the command accordingly or try this: sudo /etc/init.d/mysql restart
If you want to print the array like you print a 2D list in Python:
#include <stdio.h>
int main()
{
int i, j;
int my_array[3][3] = {{10, 23, 42}, {1, 654, 0}, {40652, 22, 0}};
for(i = 0; i < 3; i++)
{
if (i == 0) {
printf("[");
}
printf("[");
for(j = 0; j < 3; j++)
{
printf("%d", my_array[i][j]);
if (j < 2) {
printf(", ");
}
}
printf("]");
if (i == 2) {
printf("]");
}
if (i < 2) {
printf(", ");
}
}
return 0;
}
Output will be:
[[10, 23, 42], [1, 654, 0], [40652, 22, 0]]
Using INDEX
and MATCH
for binning. Easier to maintain if we have more bins.
=INDEX({"Text 1","Text 2","Text 3"},MATCH(A2,{0,5,21,100}))
[edited]
using your comment about productCode (and assuming product code is a String) as reference...
for(Product p : productList){
s.put(p.getProductCode() , p);
}
I'd do (added caching):
var bbx = $("#blackbox");
bbx.css('background-color') === 'rgb(255, 192, 203)' ? bbx.css('background','black') : bbx.css('background','pink')
wroking fiddle (new AGAIN): http://jsfiddle.net/6nar4/37/
I had to change the first operator as css()
returns the rgb value of the color
I had the same Problem. I had start my Oracle TNS Listener, then it works normally again.
The easiest way in your case (horizontal line) is to add a subview with black background color and frame [0, 200, 320, 1]
.
Code sample (I hope there are no errors - I wrote it without Xcode):
UIView *lineView = [[UIView alloc] initWithFrame:CGRectMake(0, 200, self.view.bounds.size.width, 1)];
lineView.backgroundColor = [UIColor blackColor];
[self.view addSubview:lineView];
[lineView release];
// You might also keep a reference to this view
// if you are about to change its coordinates.
// Just create a member and a property for this...
Another way is to create a class that will draw a line in its drawRect method (you can see my code sample for this here).
You can do this using javascript. No need for Jquery or Regex
function isNumeric(n)
{
return !isNaN(n);
}
There are some problems with your code. First I advise to use parametrized queries so you avoid SQL Injection attacks and also parameter types are discovered by framework:
var cmd = new SqlCommand("SELECT EmpName FROM Employee WHERE EmpID = @id", con);
cmd.Parameters.AddWithValue("@id", id.Text);
Second, as you are interested only in one value getting returned from the query, it is better to use ExecuteScalar
:
var name = cmd.ExecuteScalar();
if (name != null)
{
position = name.ToString();
Response.Write("User Registration successful");
}
else
{
Console.WriteLine("No Employee found.");
}
The last thing is to wrap SqlConnection
and SqlCommand
into using
so any resources used by those will be disposed of:
string position;
using (SqlConnection con = new SqlConnection("server=free-pc\\FATMAH; Integrated Security=True; database=Workflow; "))
{
con.Open();
using (var cmd = new SqlCommand("SELECT EmpName FROM Employee WHERE EmpID = @id", con))
{
cmd.Parameters.AddWithValue("@id", id.Text);
var name = cmd.ExecuteScalar();
if (name != null)
{
position = name.ToString();
Response.Write("User Registration successful");
}
else
{
Console.WriteLine("No Employee found.");
}
}
}
adjacent-inputs
. adjacent-inputs
in each iteration.You can just use numpy arrays. Look at the numpy for matlab users page for a detailed overview of the pros and cons of arrays w.r.t. matrices.
As I mentioned in the comment, having to use the dot()
function or method for mutiplication of vectors is the biggest pitfall. But then again, numpy arrays are consistent. All operations are element-wise. So adding or subtracting arrays and multiplication with a scalar all work as expected of vectors.
Edit2: Starting with Python 3.5 and numpy 1.10 you can use the @
infix-operator for matrix multiplication, thanks to pep 465.
Edit: Regarding your comment:
Yes. The whole of numpy is based on arrays.
Yes. linalg.norm(v)
is a good way to get the length of a vector. But what you get depends on the possible second argument to norm! Read the docs.
To normalize a vector, just divide it by the length you calculated in (2). Division of arrays by a scalar is also element-wise.
An example in ipython:
In [1]: import math
In [2]: import numpy as np
In [3]: a = np.array([4,2,7])
In [4]: np.linalg.norm(a)
Out[4]: 8.3066238629180749
In [5]: math.sqrt(sum([n**2 for n in a]))
Out[5]: 8.306623862918075
In [6]: b = a/np.linalg.norm(a)
In [7]: np.linalg.norm(b)
Out[7]: 1.0
Note that In [5]
is an alternative way to calculate the length. In [6]
shows normalizing the vector.
You can 'slice' a string
very easily, just like you'd pull items from a list
:
a_string = 'This is a string'
To get the first 4 letters:
first_four_letters = a_string[:4]
>>> 'This'
Or the last 5:
last_five_letters = a_string[-5:]
>>> 'string'
So applying that logic to your problem:
the_string = '416d76b8811b0ddae2fdad8f4721ddbe|d4f656ee006e248f2f3a8a93a8aec5868788b927|12a5f648928f8e0b5376d2cc07de8e4cbf9f7ccbadb97d898373f85f0a75c47f '
first_32_chars = the_string[:32]
>>> 416d76b8811b0ddae2fdad8f4721ddbe
Just logged in to the server and type below command
locate catalina.out
It will show all the locations where catalina
file exist within this server.
You can generate a set of colors like this:
myCol = c("pink1", "violet", "mediumpurple1", "slateblue1", "purple", "purple3",
"turquoise2", "skyblue", "steelblue", "blue2", "navyblue",
"orange", "tomato", "coral2", "palevioletred", "violetred", "red2",
"springgreen2", "yellowgreen", "palegreen4",
"wheat2", "tan", "tan2", "tan3", "brown",
"grey70", "grey50", "grey30")
These colors are as distinct as possible. For those similar colors, they form a gradient so that you can easily tell the differences between them.
I've found two older scripts that use an indefinite or even a specific string to split. As an approach, these are always helpful.
https://www.administrator.de/contentid/226533#comment-1059704 https://www.administrator.de/contentid/267522#comment-1000886
@echo off
:noOption
if "%~1" neq "" goto :nohelp
echo Gibt eine Ausgabe bis zur angebenen Zeichenfolge&echo(
echo %~n0 ist mit Eingabeumleitung zu nutzen
echo %~n0 "Zeichenfolge" ^<Quelldatei [^>Zieldatei]&echo(
echo Zeichenfolge die zu suchende Zeichenfolge wird mit FIND bestimmt
echo ohne AusgabeUmleitung Ausgabe im CMD Fenster
exit /b
:nohelp
setlocal disabledelayedexpansion
set "intemp=%temp%%time::=%"
set "string=%~1"
set "stringlength=0"
:Laenge string bestimmen
for /f eol^=^
^ delims^= %%i in (' cmd /u /von /c "echo(!string!"^|find /v "" ') do set /a Stringlength += 1
:Eingabe temporär speichern
>"%intemp%" find /n /v ""
:suchen der Zeichenfolge und Zeile bestimmen und speichen
set "NRout="
for /f "tokens=*delims=" %%a in (' find "%string%"^<"%intemp%" ') do if not defined NRout (set "LineStr=%%a"
for /f "delims=[]" %%b in ("%%a") do set "NRout=%%b"
)
if not defined NRout >&2 echo Zeichenfolge nicht gefunden.& set /a xcode=1 &goto :end
if %NRout% gtr 1 call :Line
call :LineStr
:end
del "%intemp%"
exit /b %xcode%
:LineStr Suche nur jeden ersten Buchstaben des Strings in der Treffer-Zeile dann Ausgabe bis dahin
for /f eol^=^
^ delims^= %%a in ('cmd /u /von /c "echo(!String!"^|findstr .') do (
for /f "delims=[]" %%i in (' cmd /u /von /c "echo(!LineStr!"^|find /n "%%a" ') do (
setlocal enabledelayedexpansion
for /f %%n in ('set /a %%i-1') do if !LineStr:^~%%n^,%stringlength%! equ !string! (
set "Lineout=!LineStr:~0,%%n!!string!"
echo(!Lineout:*]=!
exit /b
)
) )
exit /b
:Line vorige Zeilen ausgeben
for /f "usebackq tokens=* delims=" %%i in ("%intemp%") do (
for /f "tokens=1*delims=[]" %%n in ("%%i") do if %%n EQU %NRout% exit /b
set "Line=%%i"
setlocal enabledelayedexpansion
echo(!Line:*]=!
endlocal
)
exit /b
@echo off
:: CUTwithWildcards.cmd
:noOption
if "%~1" neq "" goto :nohelp
echo Gibt eine Ausgabe ohne die angebene Zeichenfolge.
echo Der Rest wird abgeschnitten.&echo(
echo %~n0 "Zeichenfolge" B n E [/i] &echo(
echo Zeichenfolge String zum Durchsuchen
echo B Zeichen Wonach am Anfang gesucht wird
echo n Auszulassende Zeichenanzahl
echo E Zeichen was das Ende der Zeichen Bestimmt
echo /i Case intensive
exit /b
:nohelp
setlocal disabledelayedexpansion
set "Original=%~1"
set "Begin=%~2"
set /a Excl=%~3 ||echo Syntaxfehler.>&2 &&exit /b 1
set "End=%~4"
if not defined end echo Syntaxfehler.>&2 &exit /b 1
set "CaseInt=%~5"
:: end Setting Input Param
set "out="
set "more="
call :read Original
if errorlevel 1 echo Zeichenfolge nicht gefunden.>&2
exit /b
:read VarName B # E [/i]
for /f "delims=[]" %%a in (' cmd /u /von /c "echo !%~1!"^|find /n %CaseInt% "%Begin%" ') do (
if defined out exit /b 0
for /f "delims=[]" %%b in (' cmd /u /von /c "echo !%1!"^|more +%Excl%^|find /n %CaseInt% "%End%"^|find "[%%a]" ') do (
set "out=1"
setlocal enabledelayedexpansion
set "In= !Original!"
set "In=!In:~,%%a!"
echo !In:^~2!
endlocal
) )
if not defined out exit /b 1
exit /b
::oneliner for CMDLine
set "Dq=""
for %i in ("*S??E*") do @set "out=1" &for /f "delims=[]" %a in ('cmd/u/c "echo %i"^|find /n "S"') do @if defined out for /f "delims=[]" %b in ('cmd/u/c "echo %i"^|more +2^|find /n "E"^|find "[%a]"') do @if %a equ %b set "out=" & set in= "%i" &cmd /v/c echo ren "%i" !in:^~0^,%a!!Dq!)
CouchDB and MySQL are two very different beasts. JSON is the native way to store stuff in CouchDB. In MySQL, the best you could do is store JSON data as text in a single field. This would entirely defeat the purpose of storing it in an RDBMS and would greatly complicate every database transaction.
Don't.
Having said that, FriendFeed seemed to use an extremely custom schema on top of MySQL. It really depends on what exactly you want to store, there's hardly one definite answer on how to abuse a database system so it makes sense for you. Given that the article is very old and their main reason against Mongo and Couch was immaturity, I'd re-evaluate these two if MySQL doesn't cut it for you. They should have grown a lot by now.
The best solution I've come up with at on the spot (though most likely crude) would be:
String.prototype.getBytes = function() {
var bytes = [];
for (var i = 0; i < this.length; i++) {
var charCode = this.charCodeAt(i);
var cLen = Math.ceil(Math.log(charCode)/Math.log(256));
for (var j = 0; j < cLen; j++) {
bytes.push((charCode << (j*8)) & 0xFF);
}
}
return bytes;
}
Though I notice this question has been here for over a year.
stmt.setDate(1, new java.sql.Date(cal.getTime().getTime()));
After forking, use dup2(2)
to duplicate the file's FD into stdout's FD, then exec.
foreach ($array as $value => $name) {
echo '<option value="' . htmlentities($value) . '"' . (($_GET['sel'] === $value) ? ' selected="selected"') . '>' . htmlentities($name) . '</option>';
}
This is fairly neat, and, I think, self-explanatory.
CSS has many pseudo selector like, :active, :hover, :focus, so you can use.
Html
<div class="col-sm-12" id="my_styles">
<button type="submit" class="btn btn-warning" id="1">Button1</button>
<button type="submit" class="btn btn-warning" id="2">Button2</button>
</div>
css
.btn{
background: #ccc;
} .btn:focus{
background: red;
}
The error you're getting appears to be the result of the fact that there is no underscore between "chartered" and "flight" in the table name. I assume you want something like this where the name of the table is chartered_flight
.
CREATE TABLE chartered_flight(flight_no NUMBER(4) PRIMARY KEY
, customer_id NUMBER(6) REFERENCES customer(customer_id)
, aircraft_no NUMBER(4) REFERENCES aircraft(aircraft_no)
, flight_type VARCHAR2 (12)
, flight_date DATE NOT NULL
, flight_time INTERVAL DAY TO SECOND NOT NULL
, takeoff_at CHAR (3) NOT NULL
, destination CHAR (3) NOT NULL)
Generally, there is no benefit to declaring a column as CHAR(3)
rather than VARCHAR2(3)
. Declaring a column as CHAR(3)
doesn't force there to be three characters of (useful) data. It just tells Oracle to space-pad data with fewer than three characters to three characters. That is unlikely to be helpful if someone inadvertently enters an incorrect code. Potentially, you could declare the column as VARCHAR2(3)
and then add a CHECK
constraint that LENGTH(takeoff_at) = 3
.
CREATE TABLE chartered_flight(flight_no NUMBER(4) PRIMARY KEY
, customer_id NUMBER(6) REFERENCES customer(customer_id)
, aircraft_no NUMBER(4) REFERENCES aircraft(aircraft_no)
, flight_type VARCHAR2 (12)
, flight_date DATE NOT NULL
, flight_time INTERVAL DAY TO SECOND NOT NULL
, takeoff_at CHAR (3) NOT NULL CHECK( length( takeoff_at ) = 3 )
, destination CHAR (3) NOT NULL CHECK( length( destination ) = 3 )
)
Since both takeoff_at
and destination
are airport codes, you really ought to have a separate table of valid airport codes and define foreign key constraints between the chartered_flight
table and this new airport_code
table. That ensures that only valid airport codes are added and makes it much easier in the future if an airport code changes.
And from a naming convention standpoint, since both takeoff_at
and destination
are airport codes, I would suggest that the names be complementary and indicate that fact. Something like departure_airport_code
and arrival_airport_code
, for example, would be much more meaningful.
When you try to call Foo.talk
, the JS tries to search a function talk
through __proto__
and, of course, it can't be found.
Foo.__proto__
is Function.prototype
.
A NULL
pointer points to memory that doesn't exist. This may be address 0x00000000
or any other implementation-defined value (as long as it can never be a real address). Dereferencing it means trying to access whatever is pointed to by the pointer. The *
operator is the dereferencing operator:
int a, b, c; // some integers
int *pi; // a pointer to an integer
a = 5;
pi = &a; // pi points to a
b = *pi; // b is now 5
pi = NULL;
c = *pi; // this is a NULL pointer dereference
This is exactly the same thing as a NullReferenceException
in C#, except that pointers in C can point to any data object, even elements inside an array.
Take a look at JQuery view engine and just load the array into a dropdown:
$.ajax({
url:'suggest.html',
type:'POST',
data: 'q=' + str,
dataType: 'json',
success: function( json ) {
// Assumption is that API returned something like:["North","West","South","East"];
$('#myselect').view(json);
}
});
See details here: https://jocapc.github.io/jquery-view-engine/docs/ajax-dropdown
I looked at some of the solutions and they're great but I think I found a surprisingly easy way.
First, we need to get the ratio from the background image. We simply divide one dimension through another. Then we get something like for example 66.4%
When we have image ratio we can simply calculate the height of the div by multiplying the ratio by viewport width:
height: calc(0.664 * 100vw);
To me, it works, sets div height properly and changes it when the window is resized.
Use mod_php7.c instead of mod_php5.c for PHP 7
Example
<IfModule mod_php7.c>
php_value max_execution_time 500
</IfModule>
Often our databases are really big and the take time to take dump directly from remote machine to other machine as our friends other have suggested above.
In such cases what you can do is to take the dump on remote machine using MYSQLDUMP Command
MYSQLDUMP -uuser -p --all-databases > file_name.sql
and than transfer that file from remote server to your machine using Linux SCP Command
scp user@remote_ip:~/mysql_dump_file_name.sql ./
You typically have to do this in a single syscall, or else you will get a race condition.
This will open for reading and writing, creating the file if necessary.
FILE *fp = fopen("scores.dat", "ab+");
If you want to read it and then write a new version from scratch, then do it as two steps.
FILE *fp = fopen("scores.dat", "rb");
if (fp) {
read_scores(fp);
}
// Later...
// truncates the file
FILE *fp = fopen("scores.dat", "wb");
if (!fp)
error();
write_scores(fp);
Once you have selected the highest value, which is "12" in my example, you can then declare it as integer and increment your value:
$FileList = "1", "2", "11"
$foldername = [int]$FileList[2] + 1
$foldername
If you press Ctrl + Enter after you press something like "/wordforsearch", then you can find the word "wordforsearch" in the current line. Then press n for the next match; press N for previous match.
echo
adds spaces between the arguments passed to it. $text
is subject to variable expansion and word splitting, so your echo
command is equivalent to:
echo -e "this" "is" "line" "one\n" "this" "is" "line" "two\n" ...
You can see that a space will be added before "this". You can either remove the newline characters, and quote $text
to preserve the newlines:
text="this is line one
this is line two
this is line three"
echo "$text" > filename
Or you could use printf
, which is more robust and portable than echo
:
printf "%s\n" "this is line one" "this is line two" "this is line three" > filename
In bash
, which supports brace expansion, you could even do:
printf "%s\n" "this is line "{one,two,three} > filename
For at DataFrame one can simply type
head(data, num=10L)
to get the first 10 for example.
For a data.frame one can simply type
head(data, 10)
to get the first 10.
select A, B, 'c' as C
from MyTable
Make sure you do not use the trailing semicolon: This will not work:
set JAVA_HOME=C:\Program Files (x86)\Java\jdk1.6.0_29;
This will:
set JAVA_HOME=C:\Program Files (x86)\Java\jdk1.6.0_29
Replace
new Timestamp();
with
new java.util.Date()
because there is no default constructor for Timestamp
, or you can do it with the method:
new Timestamp(System.currentTimeMillis());
Use break?
while(choice!=99)
{
cin>>choice;
if (choice==99)
break;
cin>>gNum;
}
This looks like a formating issue to me.
As far as SQL Server's money type is concerned 0 == 0.00
If you're trying to display 0 in say c# rather then 0.00 you should convert it to a string, and format it as you want. (or truncate it.)
I'm pretty sure it is technically impossible in SQL Server to have a True 1 to 1 relationship, as that would mean you would have to insert both records at the same time (otherwise you'd get a constraint error on insert), in both tables, with both tables having a foreign key relationship to each other.
That being said, your database design described with a foreign key is a 1 to 0..1 relationship. There is no constrain possible that would require a record in tableB. You can have a pseudo-relationship with a trigger that creates the record in tableB.
So there are a few pseudo-solutions
First, store all the data in a single table. Then you'll have no issues in EF.
Or Secondly, your entity must be smart enough to not allow an insert unless it has an associated record.
Or thirdly, and most likely, you have a problem you are trying to solve, and you are asking us why your solution doesn't work instead of the actual problem you are trying to solve (an XY Problem).
UPDATE
To explain in REALITY how 1 to 1 relationships don't work, I'll use the analogy of the Chicken or the egg dilemma. I don't intend to solve this dilemma, but if you were to have a constraint that says in order to add a an Egg to the Egg table, the relationship of the Chicken must exist, and the chicken must exist in the table, then you couldn't add an Egg to the Egg table. The opposite is also true. You cannot add a Chicken to the Chicken table without both the relationship to the Egg and the Egg existing in the Egg table. Thus no records can be every made, in a database without breaking one of the rules/constraints.
Database nomenclature of a one-to-one relationship is misleading. All relationships I've seen (there-fore my experience) would be more descriptive as one-to-(zero or one) relationships.
Not sure if this is already answered, but if you want only a table in a figure window, then you can hide the axes:
fig, ax = plt.subplots()
# Hide axes
ax.xaxis.set_visible(False)
ax.yaxis.set_visible(False)
# Table from Ed Smith answer
clust_data = np.random.random((10,3))
collabel=("col 1", "col 2", "col 3")
ax.table(cellText=clust_data,colLabels=collabel,loc='center')
I discovered today that we can now debug Javascript With the developer tool bar plugins integreted in IE 8.
You can use watch, breakpoint, see the call stack etc, similarly to debuggers in professional browsers.
You can also use the statement debugger;
in your JavaScript code the set a breakpoint.
I use this for Firebird
select 1 from RDB$RELATION_FIELDS rows 1
One of the best source of information on this topic is Paul Irish's Bulletproof @font-face syntax article.
Read it and you will end with something like:
/* definition */
@font-face {
font-family: EntezareZohoor2;
src: url('fonts/EntezareZohoor2.eot');
src: url('fonts/EntezareZohoor2.eot?') format('?'),
url('fonts/EntezareZohoor2.woff') format('woff'),
url('fonts/EntezareZohoor2.ttf') format('truetype');
font-weight: normal;
font-style: normal;
}
/* use */
body {
font-family: EntezareZohoor2, Tahoma, serif;
}
You'll need to serialize your object into some kind of string representation. One possible string representation is JSON, and one of the easiest ways to serialize to/from JSON in android, if you ask me, is through Google GSON.
In that case you just put the string return value from (new Gson()).toJson(myObject);
and retrieve the string value and use fromJson
to turn it back into your object.
If your object isn't very complex, however, it might not be worth the overhead, and you could consider passing the separate values of the object instead.
Try this magic
public static <T> void swap(T a, T b) {
try {
Field[] fields = a.getClass().getDeclaredFields();
for (Field field : fields) {
field.setAccessible(true);
Object temp = field.get(a);
field.set(a, field.get(b));
field.set(b, temp);
}
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
And test it!
System.out.println("a:" + a);
System.out.println("b:" + b);
swap(a,b);
System.out.println("a:" + a);
System.out.println("b:" + b);
Empty array for empty collections and null
for everything else.
You may also need the following directive to be set before the first "sub_filter" for backend-servers with data compression:
proxy_set_header Accept-Encoding "";
Otherwise it may not work. For your example it will look like:
location /admin/ {
proxy_pass http://localhost:8080/;
proxy_set_header Accept-Encoding "";
sub_filter "http://your_server/" "http://your_server/admin/";
sub_filter_once off;
}
To include CSS and jQuery in your plugin is easy, try this:
// register jquery and style on initialization
add_action('init', 'register_script');
function register_script() {
wp_register_script( 'custom_jquery', plugins_url('/js/custom-jquery.js', __FILE__), array('jquery'), '2.5.1' );
wp_register_style( 'new_style', plugins_url('/css/new-style.css', __FILE__), false, '1.0.0', 'all');
}
// use the registered jquery and style above
add_action('wp_enqueue_scripts', 'enqueue_style');
function enqueue_style(){
wp_enqueue_script('custom_jquery');
wp_enqueue_style( 'new_style' );
}
I found this great snipped from this site How to include jQuery and CSS in WordPress – The WordPress Way
Hope that helps.
If you have to use the older client, here is my experience.
We are running a 32bit server so the development machines run the 32bit client. We run the 11.1 install, 11.2 gets the error. Once you have installed the 11.2 version you have to manually delete the files Oracle.Web.dll
and System.Data.OracleClient.dll
from the %windir%\Microsoft.NET\Framework\v2.0.50727
, reinstall 11.1, then register the dlls with gacutil.exe
.
This fixed the issue with my systems.
I had a similar problem with the SP call returning an error that an expected parameter was not included. My code was as follows.
Stored Procedure:
@Result int OUTPUT
And C#:
SqlParameter result = cmd.Parameters.Add(new SqlParameter("@Result", DbType.Int32)); result.Direction = ParameterDirection.ReturnValue;
In troubleshooting, I realized that the stored procedure was ACTUALLY looking for a direction of "InputOutput" so the following change fixed the problem.
r
Result.Direction = ParameterDirection.InputOutput;
All the above answers have a server part, not pure client part. This should be provided by the web browser. At present, no web browser support this.
However, with this addon for firefox: https://addons.mozilla.org/en-US/firefox/addon/ip-address/ You will have to ask your users to install this addon. (it's good from me, a 3rd party).
you can test whether the user has installed it.
var installed=window.IP!==undefined;
you can get it with javascript, if it is installed, then var ip=IP.getClient(); var IPclient=ip.IP; //while ip.url is the url
ip=IP.getServer();
var IPserver=ip.IP;
var portServer=ip.port;
//while ip.url is the url
//or you can use IP.getBoth();
more information here: http://www.jackiszhp.info/tech/addon.IP.html
No. Neither Visual Studio or the .NET framework will run on Mac OSX (although the latter is changing). However, if you want to write an application in a similar framework, you could use Mono and MonoDevelop.
There is a plugin, adampietrasiak/jquery.initialize, which is based on MutationObserver
that achieves this simply.
$.initialize(".some-element", function() {
$(this).css("color", "blue");
});
Let's assume our application uses the following Post
, PostComment
, PostDetails
, and Tag
entities, which form a one-to-many, one-to-one, and many-to-many table relationships:
The hibernate-jpamodelgen
tool provided by Hibernate ORM can be used to scan the project entities and generate the JPA Criteria Metamodel. All you need to do is add the following annotationProcessorPath
to the maven-compiler-plugin
in the Maven pom.xml
configuration file:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven-compiler-plugin.version}</version>
<configuration>
<annotationProcessorPaths>
<annotationProcessorPath>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-jpamodelgen</artifactId>
<version>${hibernate.version}</version>
</annotationProcessorPath>
</annotationProcessorPaths>
</configuration>
</plugin>
Now, when the project is compiled, you can see that in the target
folder, the following Java classes are generated:
> tree target/generated-sources/
target/generated-sources/
+-- annotations
+-- com
+-- vladmihalcea
+-- book
+-- hpjp
+-- hibernate
+-- forum
¦ +-- PostComment_.java
¦ +-- PostDetails_.java
¦ +-- Post_.java
¦ +-- Tag_.java
If the Tag
entity is mapped as follows:
@Entity
@Table(name = "tag")
public class Tag {
@Id
private Long id;
private String name;
//Getters and setters omitted for brevity
}
The Tag_
Metamodel class is generated like this:
@Generated(value = "org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor")
@StaticMetamodel(Tag.class)
public abstract class Tag_ {
public static volatile SingularAttribute<Tag, String> name;
public static volatile SingularAttribute<Tag, Long> id;
public static final String NAME = "name";
public static final String ID = "id";
}
The SingularAttribute
is used for the basic id
and name
Tag
JPA entity attributes.
The Post
entity is mapped like this:
@Entity
@Table(name = "post")
public class Post {
@Id
private Long id;
private String title;
@OneToMany(
mappedBy = "post",
cascade = CascadeType.ALL,
orphanRemoval = true
)
private List<PostComment> comments = new ArrayList<>();
@OneToOne(
mappedBy = "post",
cascade = CascadeType.ALL,
fetch = FetchType.LAZY
)
@LazyToOne(LazyToOneOption.NO_PROXY)
private PostDetails details;
@ManyToMany
@JoinTable(
name = "post_tag",
joinColumns = @JoinColumn(name = "post_id"),
inverseJoinColumns = @JoinColumn(name = "tag_id")
)
private List<Tag> tags = new ArrayList<>();
//Getters and setters omitted for brevity
}
The Post
entity has two basic attributes, id
and title
, a one-to-many comments
collection, a one-to-one details
association, and a many-to-many tags
collection.
The Post_
Metamodel class is generated as follows:
@Generated(value = "org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor")
@StaticMetamodel(Post.class)
public abstract class Post_ {
public static volatile ListAttribute<Post, PostComment> comments;
public static volatile SingularAttribute<Post, PostDetails> details;
public static volatile SingularAttribute<Post, Long> id;
public static volatile SingularAttribute<Post, String> title;
public static volatile ListAttribute<Post, Tag> tags;
public static final String COMMENTS = "comments";
public static final String DETAILS = "details";
public static final String ID = "id";
public static final String TITLE = "title";
public static final String TAGS = "tags";
}
The basic id
and title
attributes, as well as the one-to-one details
association, are represented by a SingularAttribute
while the comments
and tags
collections are represented by the JPA ListAttribute
.
The PostDetails
entity is mapped like this:
@Entity
@Table(name = "post_details")
public class PostDetails {
@Id
@GeneratedValue
private Long id;
@Column(name = "created_on")
private Date createdOn;
@Column(name = "created_by")
private String createdBy;
@OneToOne(fetch = FetchType.LAZY)
@MapsId
@JoinColumn(name = "id")
private Post post;
//Getters and setters omitted for brevity
}
All entity attributes are going to be represented by the JPA SingularAttribute
in the associated PostDetails_
Metamodel class:
@Generated(value = "org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor")
@StaticMetamodel(PostDetails.class)
public abstract class PostDetails_ {
public static volatile SingularAttribute<PostDetails, Post> post;
public static volatile SingularAttribute<PostDetails, String> createdBy;
public static volatile SingularAttribute<PostDetails, Long> id;
public static volatile SingularAttribute<PostDetails, Date> createdOn;
public static final String POST = "post";
public static final String CREATED_BY = "createdBy";
public static final String ID = "id";
public static final String CREATED_ON = "createdOn";
}
The PostComment
is mapped as follows:
@Entity
@Table(name = "post_comment")
public class PostComment {
@Id
private Long id;
@ManyToOne(fetch = FetchType.LAZY)
private Post post;
private String review;
//Getters and setters omitted for brevity
}
And, all entity attributes are represented by the JPA SingularAttribute
in the associated PostComments_
Metamodel class:
@Generated(value = "org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor")
@StaticMetamodel(PostComment.class)
public abstract class PostComment_ {
public static volatile SingularAttribute<PostComment, Post> post;
public static volatile SingularAttribute<PostComment, String> review;
public static volatile SingularAttribute<PostComment, Long> id;
public static final String POST = "post";
public static final String REVIEW = "review";
public static final String ID = "id";
}
Without the JPA Metamodel, a Criteria API query that needs to fetch the PostComment
entities filtered by their associated Post
title would look like this:
CriteriaBuilder builder = entityManager.getCriteriaBuilder();
CriteriaQuery<PostComment> query = builder.createQuery(PostComment.class);
Root<PostComment> postComment = query.from(PostComment.class);
Join<PostComment, Post> post = postComment.join("post");
query.where(
builder.equal(
post.get("title"),
"High-Performance Java Persistence"
)
);
List<PostComment> comments = entityManager
.createQuery(query)
.getResultList();
Notice that we used the post
String literal when creating the Join
instance, and we used the title
String literal when referencing the Post
title
.
The JPA Metamodel allows us to avoid hard-coding entity attributes, as illustrated by the following example:
CriteriaBuilder builder = entityManager.getCriteriaBuilder();
CriteriaQuery<PostComment> query = builder.createQuery(PostComment.class);
Root<PostComment> postComment = query.from(PostComment.class);
Join<PostComment, Post> post = postComment.join(PostComment_.post);
query.where(
builder.equal(
post.get(Post_.title),
"High-Performance Java Persistence"
)
);
List<PostComment> comments = entityManager
.createQuery(query)
.getResultList();
Or, let's say we want to fetch a DTO projection while filtering the Post
title
and the PostDetails
createdOn
attributes.
We can use the Metamodel when creating the join attributes, as well as when building the DTO projection column aliases or when referencing the entity attributes we need to filter:
CriteriaBuilder builder = entityManager.getCriteriaBuilder();
CriteriaQuery<Object[]> query = builder.createQuery(Object[].class);
Root<PostComment> postComment = query.from(PostComment.class);
Join<PostComment, Post> post = postComment.join(PostComment_.post);
query.multiselect(
postComment.get(PostComment_.id).alias(PostComment_.ID),
postComment.get(PostComment_.review).alias(PostComment_.REVIEW),
post.get(Post_.title).alias(Post_.TITLE)
);
query.where(
builder.and(
builder.like(
post.get(Post_.title),
"%Java Persistence%"
),
builder.equal(
post.get(Post_.details).get(PostDetails_.CREATED_BY),
"Vlad Mihalcea"
)
)
);
List<PostCommentSummary> comments = entityManager
.createQuery(query)
.unwrap(Query.class)
.setResultTransformer(Transformers.aliasToBean(PostCommentSummary.class))
.getResultList();
Cool, right?
From your post I gather that you want to compare dates, not arrays. If this is the case, then use the appropriate object: a datetime
object.
Please check the documentation for the datetime module. Dates are a tough cookie. Use reliable algorithms.
For me, it was because I was trying to pull a branch which was already deleted from Github.
In linux
1. Open a terminal
2. Write: "cd $ANDROID_HOME/tools/bin (this path can be /home/your-user/Android/Sdk/tools/bin)"
3. Write: "./sdkmanager --licenses"
4. To accept All licenses listed, write: "y"
5. Ready!
If your are building an app with Ionic Framework, just write again the command to build it.
So you want to:
Inspired by this answer, here's the adapted version of your script:
#!/usr/bin/env bash
different_user=deploy
useradd -m -s /bin/bash "$different_user"
echo "Current user: $(whoami)"
echo "Current directory: $(pwd)"
echo
echo "Switching user to $different_user"
sudo -u "$different_user" -i /bin/bash - <<-'EOF'
echo "Current user: $(id)"
echo "Current directory: $(pwd)"
EOF
echo
echo "Switched back to $(whoami)"
different_user_home="$(eval echo ~"$different_user")"
echo "$different_user home directory: $different_user_home"
When you run it, you should get the following:
Current user: root
Current directory: /root
Switching user to deploy
Current user: uid=1003(deploy) gid=1003(deploy) groups=1003(deploy)
Current directory: /home/deploy
Switched back to root
deploy home directory: /home/deploy
I had the same issue and I resolved it with MySQL workbench, as shown in the attached screenshot:
Hope that helps!
I just put set clipboard=unnamed
in my .vimrc. That makes the default paste buffer map to X's clipboard.
So, if I mark a bit of text in a terminal, I can simply press p
to paste it in vim. Similarly, I can yank things in vim (e.g. YY
to yank the current line into the buffer) and middle click in any window to paste it.
I don't know. I find it super convenient.
While I agree with what everyone has said above. I have a different take on this code. Basically you're assigning the new list to the local variable myList not the global. if you change the signature of ChangeList(List myList) to private void ChangeList() you'll see the output of 3, 4.
Here's my reasoning... Even though list is passed by reference, think of it as passing a pointer variable by value When you call ChangeList(myList) you're passing the pointer to (Global)myList. Now this is stored in the (local)myList variable. So now your (local)myList and (global)myList are pointing to the same list. Now you do a sort => it works because (local)myList is referencing the original (global)myList Next you create a new list and assign the pointer to that your (local)myList. But as soon as the function exits the (local)myList variable is destroyed. HTH
class Test
{
List<int> myList = new List<int>();
public void TestMethod()
{
myList.Add(100);
myList.Add(50);
myList.Add(10);
ChangeList();
foreach (int i in myList)
{
Console.WriteLine(i);
}
}
private void ChangeList()
{
myList.Sort();
List<int> myList2 = new List<int>();
myList2.Add(3);
myList2.Add(4);
myList = myList2;
}
}
Follow the next steps:
In the Stored Procedure create a global temporary table ##temptable and write an insert query within your stored procedure which inserts the data in your table into this temporary table.
Once this is done you can check the content of the temporary table by opening a new query window. Just use "select * from ##temptable"
If your data is in a matrix named foo
, the line you would run is
foo.sorted=foo[order[foo[,1]]
If you are targeting Windows XP (v140_xp
), try installing Windows XP Support for C++.
Starting with Visual Studio 2012, the default toolset (v110) dropped support for Windows XP. As a result, a Windows.h
error can occur if your project is targeting Windows XP with the default C++ packages.
Check which Windows SDK version is specified in your project's Platform Toolset. (Project ? Properties ? Configuration Properties ? General
). If your Toolset ends in _xp
, you'll need to install XP support.
Open the Visual Studio Installer and click Modify for your version of Visual Studio. Open the Individual Components tab and scroll down to Compilers, build tools, and runtimes. Near the bottom, check Windows XP support for C++ and click Modify to begin installing.
After :
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd < 0)
error("ERROR opening socket");
You can add (with standard C99 compound literal support) :
if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &(int){1}, sizeof(int)) < 0)
error("setsockopt(SO_REUSEADDR) failed");
Or :
int enable = 1;
if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int)) < 0)
error("setsockopt(SO_REUSEADDR) failed");
if you have used curl above the page and below your html is present and unfortunately your html page is not able to view then just enable your curl. But in order to check CURL is enable or not in php you need to write following code:
echo 'Curl: ', function_exists('curl_version') ? 'Enabled' : 'Disabled';
Following Code Works Fine to Get City Name (Using Google Map Geo API) :
HTML
<p><button onclick="getLocation()">Get My Location</button></p>
<p id="demo"></p>
<script src="http://maps.google.com/maps/api/js?key=YOUR_API_KEY"></script>
SCRIPT
var x=document.getElementById("demo");
function getLocation(){
if (navigator.geolocation){
navigator.geolocation.getCurrentPosition(showPosition,showError);
}
else{
x.innerHTML="Geolocation is not supported by this browser.";
}
}
function showPosition(position){
lat=position.coords.latitude;
lon=position.coords.longitude;
displayLocation(lat,lon);
}
function showError(error){
switch(error.code){
case error.PERMISSION_DENIED:
x.innerHTML="User denied the request for Geolocation."
break;
case error.POSITION_UNAVAILABLE:
x.innerHTML="Location information is unavailable."
break;
case error.TIMEOUT:
x.innerHTML="The request to get user location timed out."
break;
case error.UNKNOWN_ERROR:
x.innerHTML="An unknown error occurred."
break;
}
}
function displayLocation(latitude,longitude){
var geocoder;
geocoder = new google.maps.Geocoder();
var latlng = new google.maps.LatLng(latitude, longitude);
geocoder.geocode(
{'latLng': latlng},
function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
if (results[0]) {
var add= results[0].formatted_address ;
var value=add.split(",");
count=value.length;
country=value[count-1];
state=value[count-2];
city=value[count-3];
x.innerHTML = "city name is: " + city;
}
else {
x.innerHTML = "address not found";
}
}
else {
x.innerHTML = "Geocoder failed due to: " + status;
}
}
);
}
I would try:
self.wordList = list(wordList)
to force it to make a copy instead of referencing the same object.
"MySQL retrieves and displays DATETIME values in 'YYYY-MM-DD HH:MM:SS' format." This is from mysql site. You can store only this type, but you can use one of the many time format functions to change it, when you need to display it.
For example, one of those functions is the DATE_FORMAT, which can be used like so:
SELECT DATE_FORMAT(column_name, '%m/%d/%Y %H:%i') FROM tablename
That's the principle of a Pseudo-RNG. The numbers are not really random. They are generated using a deterministic algorithm, but depending on the seed, the sequence of generated numbers vary. Since you always use the same seed, you always get the same sequence.
Update A recent comment claims this doesn't work in the new Chrome ... As shown in jsFiddle, and tested on my personal site, this method still works as of Chrome ver 26.0.1410.64 m
This is REALLY easy in jQuery by the way:
// slight update to account for browsers not supporting e.which
function disableF5(e) { if ((e.which || e.keyCode) == 116) e.preventDefault(); };
// To disable f5
/* jQuery < 1.7 */
$(document).bind("keydown", disableF5);
/* OR jQuery >= 1.7 */
$(document).on("keydown", disableF5);
// To re-enable f5
/* jQuery < 1.7 */
$(document).unbind("keydown", disableF5);
/* OR jQuery >= 1.7 */
$(document).off("keydown", disableF5);
On a side note: This only disables the f5 button on the keyboard. To truly disable refresh you must use a server side script to check for page state changes. Can't say I really know how to do this as I haven't done it yet.
On the software site that I work at, we use my disableF5 function in conjunction with Codeigniter's session data. For instance, there is a lock button which will lock the screen and prompt a password dialog. The function "disableF5" is quick and easy and keeps that button from doing anything. However, to prevent the mouse-click on refresh button, a couple things take place.
TIP: Try using a server-set cookie, such as PHP's $_SESSION
, or even .Net's Response.Cookies
, to maintain "where" your client is in your site. This is the more Vanilla way to do what I do with CI's Session class. The big difference being that CI uses a Table in your DB, whereas these vanilla methods store an editable cookie in the client. The downside though, is a user can clear its cookies.
Here is a version inspired by this thread that more closely mimics distutils.file_util.copy_file
.
updateonly
is a bool if True, will only copy files with modified dates newer than existing files in dst
unless listed in forceupdate
which will copy regardless.
ignore
and forceupdate
expect lists of filenames or folder/filenames relative to src
and accept Unix-style wildcards similar to glob
or fnmatch
.
The function returns a list of files copied (or would be copied if dryrun
if True).
import os
import shutil
import fnmatch
import stat
import itertools
def copyToDir(src, dst, updateonly=True, symlinks=True, ignore=None, forceupdate=None, dryrun=False):
def copySymLink(srclink, destlink):
if os.path.lexists(destlink):
os.remove(destlink)
os.symlink(os.readlink(srclink), destlink)
try:
st = os.lstat(srclink)
mode = stat.S_IMODE(st.st_mode)
os.lchmod(destlink, mode)
except OSError:
pass # lchmod not available
fc = []
if not os.path.exists(dst) and not dryrun:
os.makedirs(dst)
shutil.copystat(src, dst)
if ignore is not None:
ignorepatterns = [os.path.join(src, *x.split('/')) for x in ignore]
else:
ignorepatterns = []
if forceupdate is not None:
forceupdatepatterns = [os.path.join(src, *x.split('/')) for x in forceupdate]
else:
forceupdatepatterns = []
srclen = len(src)
for root, dirs, files in os.walk(src):
fullsrcfiles = [os.path.join(root, x) for x in files]
t = root[srclen+1:]
dstroot = os.path.join(dst, t)
fulldstfiles = [os.path.join(dstroot, x) for x in files]
excludefiles = list(itertools.chain.from_iterable([fnmatch.filter(fullsrcfiles, pattern) for pattern in ignorepatterns]))
forceupdatefiles = list(itertools.chain.from_iterable([fnmatch.filter(fullsrcfiles, pattern) for pattern in forceupdatepatterns]))
for directory in dirs:
fullsrcdir = os.path.join(src, directory)
fulldstdir = os.path.join(dstroot, directory)
if os.path.islink(fullsrcdir):
if symlinks and dryrun is False:
copySymLink(fullsrcdir, fulldstdir)
else:
if not os.path.exists(directory) and dryrun is False:
os.makedirs(os.path.join(dst, dir))
shutil.copystat(src, dst)
for s,d in zip(fullsrcfiles, fulldstfiles):
if s not in excludefiles:
if updateonly:
go = False
if os.path.isfile(d):
srcdate = os.stat(s).st_mtime
dstdate = os.stat(d).st_mtime
if srcdate > dstdate:
go = True
else:
go = True
if s in forceupdatefiles:
go = True
if go is True:
fc.append(d)
if not dryrun:
if os.path.islink(s) and symlinks is True:
copySymLink(s, d)
else:
shutil.copy2(s, d)
else:
fc.append(d)
if not dryrun:
if os.path.islink(s) and symlinks is True:
copySymLink(s, d)
else:
shutil.copy2(s, d)
return fc
I would style a link to look like a button, because that way there is a no-js fallback.
So this is how you could animate the jump using jquery. No-js fallback is a normal jump without animation.
Original example:
$(document).ready(function() {_x000D_
$(".jumper").on("click", function( e ) {_x000D_
_x000D_
e.preventDefault();_x000D_
_x000D_
$("body, html").animate({ _x000D_
scrollTop: $( $(this).attr('href') ).offset().top _x000D_
}, 600);_x000D_
_x000D_
});_x000D_
});
_x000D_
#long {_x000D_
height: 500px;_x000D_
background-color: blue;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<!-- Links that trigger the jumping -->_x000D_
<a class="jumper" href="#pliip">Pliip</a>_x000D_
<a class="jumper" href="#ploop">Ploop</a>_x000D_
<div id="long">...</div>_x000D_
<!-- Landing elements -->_x000D_
<div id="pliip">pliip</div>_x000D_
<div id="ploop">ploop</div>
_x000D_
New example with actual button styles for the links, just to prove a point.
Everything is essentially the same, except that I changed the class .jumper
to .button
and I added css styling to make the links look like buttons.
Usually, you would also have a header file that you include in your code to access the symbols.
You could have an extension of this problem in case of your initial text was set into a string type variable, for example:
function status(){
if [ $1 != "stopped" ]; then
artist="ABC";
track="CDE";
album="DEF";
status_message="The current track is $track at $album by $artist";
echo $status_message;
read_status $1 "$status_message";
fi
}
function read_status(){
if [ $1 != "playing" ]; then
echo $2
fi
}
In this case if you don't pass the status_message variable forward as string (surrounded by "") it will be split in a mount of different arguments.
"$variable": The current track is CDE at DEF by ABC
$variable: The
If the above solution didn't work and you got any unhandled promise rejection then try to follow steps :
Clean the Cordova project
cordova clean
cordova platform remove android/ios
cordova plugin remove
You can do this natively as follows:
=C6=""
where C6 is the first data cell of the phone number column.If you want to do this programmatically I suggest you use the Macro Recorder to record the above steps and look at the code.
Old question but nowadays CSS3 makes vertical alignment really simple!
Just add to the <div>
this css:
display:flex;
align-items:center;
justify-content:center;
Live Example:
.img_thumb {_x000D_
float: left;_x000D_
height: 120px;_x000D_
margin-bottom: 5px;_x000D_
margin-left: 9px;_x000D_
position: relative;_x000D_
width: 147px;_x000D_
background-color: rgba(0, 0, 0, 0.5);_x000D_
border-radius: 3px;_x000D_
display:flex;_x000D_
align-items:center;_x000D_
justify-content:center;_x000D_
}
_x000D_
<div class="img_thumb">_x000D_
<a class="images_class" href="http://i.imgur.com/2FMLuSn.jpg" rel="images">_x000D_
<img src="http://i.imgur.com/2FMLuSn.jpg" title="img_title" alt="img_alt" />_x000D_
</a>_x000D_
</div>
_x000D_
The SuppressWarning annotation is used to suppress compiler warnings for the annotated element. Specifically, the unchecked
category allows suppression of compiler warnings generated as a result of unchecked type casts.
$("#foo > div")
selects all divs that are immediate descendants of #foo
once you have the set of children you can either use the size function:
$("#foo > div").size()
or you can use
$("#foo > div").length
Both will return you the same result
C++ has Automatic variables - not Stack variables.
Automatic variable means that C++ compiler handles memory allocation / free by itself. C++ can automatically handle objects of any class - no matter whether it has dynamically allocated members or not. It's achieved by strong guarantee of C++ that object's destructor will be called automatically when execution is going out of scope where automatic variable was declared. Inside of a C++ object can be a lot of dynamic allocations with new
in constructor, and when such an object is declared as an automatic variable - all dynamic allocations will be performed, and freed then in destructor.
Stack variables in C can't be dynamically allocated. Stack in C can store pointers, or fixed arrays or structs - all of fixed size, and these things are being allocated in memory in linear order. When a C program frees a stack variable - it just moves stack pointer back and nothing more.
Even though C++ programs can use Stack memory segment for storing primitive types, function's args, or other, - it's all decided by C++ compiler, not by program developer. Thus, it is conceptually wrong to equal C++ automatic variables and C stack variables.
Should look like this:
UPDATE DHE.dbo.tblAccounts
SET DHE.dbo.tblAccounts.ControllingSalesRep =
DHE_Import.dbo.tblSalesRepsAccountsLink.SalesRepCode
from DHE.dbo.tblAccounts
INNER JOIN DHE_Import.dbo.tblSalesRepsAccountsLink
ON DHE.dbo.tblAccounts.AccountCode =
DHE_Import.tblSalesRepsAccountsLink.AccountCode
Update table is repeated in FROM clause.
The error is clear, isn't it?
You've not added the path where sqljdbc_auth.dll is present. Find out in the system where the DLL is and add that to your classpath.
And if that also doesn't work, add the folder where the DLL is present (I'm assuming \Microsoft SQL Server JDBC Driver 3.0\sqljdbc_3.0\enu\auth\x86) to your PATH variable.
Again if you're going via ant or cmd you have to explicitly mention the path using -Djava.library.path=[path to MS_SQL_AUTH_DLL]
To compile you could just initiate a shell call to the csc compiler. You may have a headache trying to keep your paths and switches straight but it certainly can be done.
EDIT: Or better yet, use the CodeDOM as Noldorin suggested...
import datetime
now = datetime.datetime.now()
print now.strftime("%b %_d")
To get the fields info too, you can use the following:
SELECT TABLE_SCHEMA, TABLE_NAME,
COLUMN_NAME, substring(DATA_TYPE, 1,1) AS DATA_TYPE
FROM information_schema.COLUMNS
WHERE TABLE_SCHEMA NOT IN("information_schema", "mysql", "performance_schema")
ORDER BY TABLE_SCHEMA, TABLE_NAME, ORDINAL_POSITION
In my case i had to install google repository from the SDK manager.
Couldn't find any official documentation (no surprise there) but according to this interesting article, those elements are injected in order to enable Word to convert the HTML back to fully compatible Word document, with everything preserved.
The relevant paragraph:
Microsoft added the special tags to Word's HTML with an eye toward backward compatibility. Microsoft wanted you to be able to save files in HTML complete with all of the tracking, comments, formatting, and other special Word features found in traditional DOC files. If you save a file in HTML and then reload it in Word, theoretically you don't loose anything at all.
This makes lots of sense.
For your specific question.. the o
in the <o:p>
means "Office namespace" so anything following the o:
in a tag means "I'm part of Office namespace" - in case of <o:p>
it just means paragraph, the equivalent of the ordinary <p>
tag.
I assume that every HTML tag has its Office "equivalent" and they have more.
You could use an IN
clause
Something like
SELECT
status,
CASE
WHEN STATUS IN('a1','a2','a3')
THEN 'Active'
WHEN STATUS = 'i'
THEN 'Inactive'
WHEN STATUS = 't'
THEN 'Terminated'
END AS STATUSTEXT
FROM
STATUS
Have a look at this demo
Solution special chars
$link=mysql_connect($dbHost, $dbUser, $dbPass) OR die('connecting to host: '.$dbHost.' failed: '.mysql_error());
mysql_select_db($dbName) OR die('select db: '.$dbName.' failed: '.mysql_error());
//charset important
mysql_set_charset('utf8',$link);
In your Dockerfile
, add at the last line
ENTRYPOINT service ssh restart && bash
It works for me
And this is the result:
root@ubuntu:/home/vagrant/docker/add# docker run -i -t ubuntu
* Restarting OpenBSD Secure Shell server sshd [ OK ]
root@dccc354e422e:~# service ssh status
* sshd is running
If you've copied this directly, then:
->setCellValue('B2', Ackermann')
should be
->setCellValue('B2', 'Ackermann')
In answer to your question:
Get the data that you want from limesurvey, and use setCellValue() to store those data values in the cells where you want to store it.
The Quadratic.php example file in /Tests might help as a starting point: it takes data from an input form and sets it to cells in an Excel workbook.
EDIT
An extremely simplistic example:
// Create your database query
$query = "SELECT * FROM myDataTable";
// Execute the database query
$result = mysql_query($query) or die(mysql_error());
// Instantiate a new PHPExcel object
$objPHPExcel = new PHPExcel();
// Set the active Excel worksheet to sheet 0
$objPHPExcel->setActiveSheetIndex(0);
// Initialise the Excel row number
$rowCount = 1;
// Iterate through each result from the SQL query in turn
// We fetch each database result row into $row in turn
while($row = mysql_fetch_array($result)){
// Set cell An to the "name" column from the database (assuming you have a column called name)
// where n is the Excel row number (ie cell A1 in the first row)
$objPHPExcel->getActiveSheet()->SetCellValue('A'.$rowCount, $row['name']);
// Set cell Bn to the "age" column from the database (assuming you have a column called age)
// where n is the Excel row number (ie cell A1 in the first row)
$objPHPExcel->getActiveSheet()->SetCellValue('B'.$rowCount, $row['age']);
// Increment the Excel row counter
$rowCount++;
}
// Instantiate a Writer to create an OfficeOpenXML Excel .xlsx file
$objWriter = new PHPExcel_Writer_Excel2007($objPHPExcel);
// Write the Excel file to filename some_excel_file.xlsx in the current directory
$objWriter->save('some_excel_file.xlsx');
EDIT #2
Using your existing code as the basis
// Instantiate a new PHPExcel object
$objPHPExcel = new PHPExcel();
// Set the active Excel worksheet to sheet 0
$objPHPExcel->setActiveSheetIndex(0);
// Initialise the Excel row number
$rowCount = 1;
//start of printing column names as names of MySQL fields
$column = 'A';
for ($i = 1; $i < mysql_num_fields($result); $i++)
{
$objPHPExcel->getActiveSheet()->setCellValue($column.$rowCount, mysql_field_name($result,$i));
$column++;
}
//end of adding column names
//start while loop to get data
$rowCount = 2;
while($row = mysql_fetch_row($result))
{
$column = 'A';
for($j=1; $j<mysql_num_fields($result);$j++)
{
if(!isset($row[$j]))
$value = NULL;
elseif ($row[$j] != "")
$value = strip_tags($row[$j]);
else
$value = "";
$objPHPExcel->getActiveSheet()->setCellValue($column.$rowCount, $value);
$column++;
}
$rowCount++;
}
// Redirect output to a client’s web browser (Excel5)
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="Limesurvey_Results.xls"');
header('Cache-Control: max-age=0');
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
$objWriter->save('php://output');
If you don't need full debugging support, you can now view JavaScript console logs directly within Chrome for iOS at chrome://inspect.
https://blog.chromium.org/2019/03/debugging-websites-in-chrome-for-ios.html
If you have a class that you use in an activity and you want to have access the ressource in that class, I recommend you to define a context as a private variable in class and initial it in constructor:
public class MyClass (){
private Context context;
public MyClass(Context context){
this.context=context;
}
public testResource(){
String s=context.getString(R.string.testString).toString();
}
}
Making an instant of class in your activity:
MyClass m=new MyClass(this);
For the input border before the focus. You can specify your favorite color you want to use and other css like padding etc
.input {
padding: 6px 190px 6px 15px;
outline: #2a65ea auto 105px ;
}
When we focus on input. You can specify your favorite color outline you wish
.input:focus{
box-shadow: none;
border-color: none;
outline: lightgreen auto 5px ;
}
Committing .gitignore can be very useful but you want to make sure you don't modify it too much thereafter especially if you regularly switch between branches. If you do you might get cases where files are ignored in a branch and not in the other, forcing you to go manually delete or rename files in your work directory because a checkout failed as it would overwrite a non-tracked file.
Therefore yes, do commit your .gitignore, but not before you are reasonably sure it won't change that much thereafter.
The easiest solution I found was to simply put that in your fragment :
androidx.appcompat.widget.Toolbar toolbar = getActivity().findViewById(R.id.toolbar);
toolbar.setNavigationOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
NavController navController = Navigation.findNavController(getActivity(),
R.id.nav_host_fragment);
navController.navigate(R.id.action_position_to_destination);
}
});
Personnaly I wanted to go to another page but of course you can replace the 2 lines in the onClick method by the action you want to perform.
Try this:
1) Plug your iOS device into your Mac using a lightning cable. You may need to select to Trust This Computer on your device.
2) Open Xcode and go to Window > Devices and Simulators.
3) Select your device and then select the Connect via network checkbox to pair your device.
4) Run your project after removing your lighting cable.
Because Invoke
/BeginInvoke
accepts Delegate
(rather than a typed delegate), you need to tell the compiler what type of delegate to create ; MethodInvoker
(2.0) or Action
(3.5) are common choices (note they have the same signature); like so:
control.Invoke((MethodInvoker) delegate {this.Text = "Hi";});
If you need to pass in parameters, then "captured variables" are the way:
string message = "Hi";
control.Invoke((MethodInvoker) delegate {this.Text = message;});
(caveat: you need to be a bit cautious if using captures async, but sync is fine - i.e. the above is fine)
Another option is to write an extension method:
public static void Invoke(this Control control, Action action)
{
control.Invoke((Delegate)action);
}
then:
this.Invoke(delegate { this.Text = "hi"; });
// or since we are using C# 3.0
this.Invoke(() => { this.Text = "hi"; });
You can of course do the same with BeginInvoke
:
public static void BeginInvoke(this Control control, Action action)
{
control.BeginInvoke((Delegate)action);
}
If you can't use C# 3.0, you could do the same with a regular instance method, presumably in a Form
base-class.
I have encountered such error but after modifying my response before sending it to the client it worked fine.
//Server side
response = JSON.stringify('{"status": {"code": 200},"result": '+ JSON.stringify(result)+'}');
res.send(response); // Sending to client
//Client side
success: function(res, status) {
response = JSON.parse(res); // Getting as expected
//Do something
}
With the latest version of phpmyadmin 5.0.2+ at least
Check that the actual installation was completed correctly,
Mine had been copied over into a sub folder on a linux machine rather that being at the
/usr/share/phpmyadmin/
If you using JavaScript to test your Regex, try \\.
instead of \.
.
It acts on the same way because JS remove first backslash.
Another option which may be easier to remember would be to place marks on the two lines with ma and mb, then run :'a,'byank
.
Many different ways to accomplish this task, just offering another.
The other answers regarding the use of nvl() are correct however none seem to address a more salient point:
Should you even have NULLs in this column?
Do they have a meaning other than 0?
This seems like a case where you should have a NOT NULL DEFAULT 0 on th ecolumn
I would suggest via Bitmap:
public void SaveImage(string base64)
{
using (MemoryStream ms = new MemoryStream(Convert.FromBase64String(base64)))
{
using (Bitmap bm2 = new Bitmap(ms))
{
bm2.Save("SavingPath" + "ImageName.jpg");
}
}
}
I've found a way where you can set the real line height (not a factor) and it even renders live in Interface Builder. Just follow the instructions below. Code is written in Swift 4.
Step #1: Create a file named DesignableLabel.swift
and insert the following code:
import UIKit
@IBDesignable
class DesignableLabel: UILabel {
@IBInspectable var lineHeight: CGFloat = 20 {
didSet {
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.minimumLineHeight = lineHeight
paragraphStyle.maximumLineHeight = lineHeight
paragraphStyle.alignment = self.textAlignment
let attrString = NSMutableAttributedString(string: text!)
attrString.addAttribute(NSAttributedStringKey.font, value: font, range: NSRange(location: 0, length: attrString.length))
attrString.addAttribute(NSAttributedStringKey.paragraphStyle, value: paragraphStyle, range: NSRange(location: 0, length: attrString.length))
attributedText = attrString
}
}
}
Step #2: Place a UILabel
into a Storyboard/XIB and set its class to DesignableLabel
. Wait for your project to build (build must succeed!).
Step 3: Now you should see a new property in the properties pane named "Line Height". Just set the value you like and you should see the results immediately!
Not necessarily the best practice, but my environment was a local network with several machines which needed access to the selenium.
When running the chromedriver, you can pass through a param like so :
chromedriver --whitelisted-ips=""
This will basically whitelist all IP's, not always an ideal solution of course and be careful with it for production enviornments, but you should be presented with a verbose warning :
Starting ChromeDriver 2.16.333244 (15fb740a49ab3660b8f8d496cfab2e4d37c7e6ca) on port 9515 All remote connections are allowed. Use a whitelist instead!
A work-around at best, but it works.
Here's a little hack that switched from data-hover to data-toggle depending the screen width:
/**
* Bootstrap nav menu hack
*/
$(window).on('load', function () {
// On page load
if ($(window).width() < 768) {
$('.navbar-nav > li > .dropdown-toggle').removeAttr('data-hover').attr('data-toggle', 'dropdown');
}
// On window resize
$(window).resize(function () {
if ($(window).width() < 768) {
$('.navbar-nav > li > .dropdown-toggle').removeAttr('data-hover').attr('data-toggle', 'dropdown');
} else {
$('.navbar-nav > li > .dropdown-toggle').removeAttr('data-toggle').attr('data-hover', 'dropdown');
}
});
});
This is what I was getting when tried to install m2e from Eclipse Market place. I am using Eclipse Juno.
Cannot complete the install because one or more required items could not be found. Software being installed: m2e - Maven Integration for Eclipse (includes Incubating components) 1.5.0.20140606-0033 (org.eclipse.m2e.feature.feature.group 1.5.0.20140606-0033) Missing requirement: Maven Integration for Eclipse 1.5.0.20140606-0033 (org.eclipse.m2e.core 1.5.0.20140606-0033) requires 'bundle com.google.guava [14.0.1,16.0.0)' but it could not be found Cannot satisfy dependency: From: m2e - Maven Integration for Eclipse (includes Incubating components) 1.5.0.20140606-0033 (org.eclipse.m2e.feature.feature.group 1.5.0.20140606-0033) To: org.eclipse.m2e.core [1.5.0.20140606-0033]
However, the below links is perfect, it works for me.
http://marketplace.eclipse.org/content/maven-integration-eclipse-wtp-juno-0
Regards, Bilal
Call Angular Scope function from outside the controller.
// Simply Use "Body" tag, Don't try/confuse using id/class.
var scope = angular.element('body').scope();
scope.$apply(function () {scope.YourAngularJSFunction()});
You should use built-in bootstrap4 spacing classes for customizing the spacing of elements, that's more convenient method .
The simplest way is to construt a new GregorianCalendar
instance, see below:
Calendar cal = new GregorianCalendar(2013, 5, 0);
Date date = cal.getTime();
DateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
System.out.println("Date : " + sdf.format(date));
Output:
Date : 2013-05-31
Attention:
month the value used to set the MONTH calendar field in the calendar. Month value is 0-based e.g. 0 for January.
#map {
float: right;
width: 700px;
height: 500px;
}
#list {
float:left;
width:200px;
background: #eee;
list-style: none;
padding: 0;
}
#similar {
float: left;
clear: left;
width: 200px;
background: #000;
}
Use \overleftarrow
to create a long arrow to the left.
\overleftarrow{blahblahblah}
The ODP.Net provider from oracle uses bind by position as default. To change the behavior to bind by name. Set property BindByName to true. Than you can dismiss the double definition of parameters.
using(OracleCommand cmd = con.CreateCommand()) {
...
cmd.BindByName = true;
...
}
list comprehension?
[x.strip() for x in lst]
If you write Perl with use strict;
, then you'll find that the one line syntax isn't valid, even when declared.
With:
my ($newstring = $oldstring) =~ s/foo/bar/;
You get:
Can't declare scalar assignment in "my" at script.pl line 7, near ") =~"
Execution of script.pl aborted due to compilation errors.
Instead, the syntax that you have been using, while a line longer, is the syntactically correct way to do it with use strict;
. For me, using use strict;
is just a habit now. I do it automatically. Everyone should.
#!/usr/bin/env perl -wT
use strict;
my $oldstring = "foo one foo two foo three";
my $newstring = $oldstring;
$newstring =~ s/foo/bar/g;
print "$oldstring","\n";
print "$newstring","\n";
As it have been said, the issue comes from a security function of Mac OSX since "El Capitan".
Using the default system Ruby, the install process happens in the /Library/Ruby/Gems/2.0.0
directory which is not available to the user and gives the error.
You can have a look to your Ruby environments parameters with the command
$ gem env
There is an INSTALLATION DIRECTORY and a USER INSTALLATION DIRECTORY. To use the user installation directory instead of the default installation directory, you can use --user-install
parameter instead as using sudo
which is never a recommanded way of doing.
$ gem install myGemName --user-install
There should not be any rights issue anymore in the process. The gems are then installed in the user directory : ~/.gem/Ruby/2.0.0/bin
But to make the installed gems available, this directory should be available in your path. According to the Ruby’s faq, you can add the following line to your ~/.bash_profile
or ~/.bashrc
if which ruby >/dev/null && which gem >/dev/null; then
PATH="$(ruby -rubygems -e 'puts Gem.user_dir')/bin:$PATH"
fi
Then close and reload your terminal or reload your .bash_profile
or .bashrc
(. ~/.bash_profile
)
In my case. I have an Activity
with serveral Fragment
s
some time I need to recreate Fragment
s when
I clear all Fragment
s and set all to null
in activity
but Fragment already create itself, while it host activty
is bean set null, so before call Fragment view
check it null
for example
Activity{
fragment
recreate{
fragment = null then new instance
}
}
Fragment{
if((activity).fragment != null) {
findViewById()
}
}
Most importantly you need to mount the drive
net use z: \\yourserver\sharename
Of course, you need to make sure that the account the batch file runs under has permission to access the share. If you are doing this by using a Scheduled Task, you can choose the account by selecting the task, then:
"When running the task, use the following user account:" That's on Windows 7, it might be slightly different on different versions of Windows.
Then run your batch script with the following changes
copy "z:\FolderName" "C:\TEST_BACKUP_FOLDER"
You can create GitHub repositories via the command line using their Repositories API (http://develop.github.com/p/repo.html)
Check Creating github repositories with command line | Do it yourself Android for example usage.
Regarding David Elizondo's answer, this can give false positives. It also does not give zeroes where the values don't match.
DECLARE @t1 TABLE (
ColID int IDENTITY,
Col2 int
)
DECLARE @t2 TABLE (
ColID int IDENTITY,
Col2 int
)
INSERT INTO @t1 (Col2) VALUES (123)
INSERT INTO @t1 (Col2) VALUES (234)
INSERT INTO @t1 (Col2) VALUES (456)
INSERT INTO @t1 (Col2) VALUES (1)
INSERT INTO @t2 (Col2) VALUES (123)
INSERT INTO @t2 (Col2) VALUES (345)
INSERT INTO @t2 (Col2) VALUES (456)
INSERT INTO @t2 (Col2) VALUES (2)
SELECT
t1.Col2 AS t1Col2,
t2.Col2 AS t2Col2,
ISNULL(NULLIF(t1.Col2, t2.Col2), 1) AS MyDesiredResult
FROM @t1 AS t1
JOIN @t2 AS t2 ON t1.ColID = t2.ColID
t1Col2 t2Col2 MyDesiredResult
----------- ----------- ---------------
123 123 1
234 345 234 <- Not a zero
456 456 1
1 2 1 <- Not a match
I would like share an example to understand the usage of stream().filter
Code Snippet: Sample program to identify even number.
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
public void fetchEvenNumber(){
List<Integer> numberList = new ArrayList<>();
numberList.add(10);
numberList.add(11);
numberList.add(12);
numberList.add(13);
numberList.add(14);
numberList.add(15);
List<Integer> evenNumberListObj = numberList.stream().filter(i -> i%2 == 0).collect(Collectors.toList());
System.out.println(evenNumberListObj);
}
Output will be : [10, 12, 14]
List evenNumberListObj = numberList.stream().filter(i -> i%2 == 0).collect(Collectors.toList());
numberList: it is an ArrayList object contains list of numbers.
java.util.Collection.stream() : stream() will get the stream of collection, which will return the Stream of Integer.
filter: Returns a stream that match the given predicate. i.e based on given condition (i -> i%2 != 0) returns the matching stream.
collect: whatever the stream of Integer filter based in the filter condition, those integer will be put in a list.
If you specify ZEROFILL for a numeric column, MySQL automatically adds the UNSIGNED attribute to the column.
Numeric data types that permit the UNSIGNED attribute also permit SIGNED. However, these data types are signed by default, so the SIGNED attribute has no effect.
Above description is taken from MYSQL official website.
change does only work on input form elements.
you could just trigger a function after your XML / XSL transformation or make a listener:
var html = $('#laneconfigdisplay').html()
setInterval(function(){ if($('#laneconfigdisplay').html() != html){ alert('woo'); html = $('#laneconfigdisplay').html() } }, 10000) //checks your content box all 10 seconds and triggers alert when content has changed...
For running Python version 3, you need to use python3
instead of python
.
So, the final command will be:
python3 manage.py runserver
Either the parameter supplied for ZIP_CODE
is larger (in length) than ZIP_CODE
s column width or the parameter supplied for CITY
is larger (in length) than CITY
s column width.
It would be interesting to know the values supplied for the two ?
placeholders.
I worked with xib and with UIToolbar. BarButtonItem was created in xib file. I created IBOutlet for BarButtonItem. And I used this code to hide my BarButtonItem
self.myBarButtonItem.enabled = NO;
self.myBarButtonItem.title = nil;
this helped me.
You need to use view INFORMATION_SCHEMA.COLUMNS
select COLUMN_NAME from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME = my_table_name AND COLUMN_NAME like 'a%'
TO inline rows you can use PIVOT and for execution EXEC() function.
Given the specific title of this post, here's my suggestion:
ls | grep ' ' | tr ' ' '<' | sed 's|<|\\ |g'
The idea is to convert blanks to any unique character, like '<', and then change that into '\ ', a backslash followed by a blank. You can then pipe that into any command you like, such as:
ls | grep ' ' | tr ' ' '<' | sed 's|<|\\ |g' | xargs -L1 GetFileInfo
The key here lies in the 'tr' and 'sed' commands; and you can use any character besides '<', such as '?' or even a tab-character.
I was able to figure out this using a PyCharm plugin called EnvFile. This plugin, basically allows setting environment variables to run configurations from one or multiple files.
The installation is pretty simple:
Preferences > Plugins > Browse repositories... > Search for "Env File" > Install Plugin.
Then, I created a file, in my project root, called environment.env
which contains:
DATABASE_URL=postgres://127.0.0.1:5432/my_db_name
DEBUG=1
Then I went to Run->Edit Configurations, and I followed the steps in the next image:
In 3, I chose the file environment.env
, and then I could just click the play button in PyCharm, and everything worked like a charm.
Smartphone: Recored a video in vertical format
Want to send it to a webside it was 90° to the left (anti clockwise, landscape format) hmm.
ffmpeg -i input.mp4 -vf "rotate=0" output.mp4
does it. I got vertical format back again
debian buster: ffmpeg --version ffmpeg version 4.1.4-1~deb10u1 Copyright (c) 2000-2019 the FFmpeg developers
Passphrases can be added to an existing key or changed without regenerating the key pair:
Note This will work if keys doesn't had a passphrase, otherwise you'll get this: Enter old passphrase:
then Bad passphrase
$ ssh-keygen -p
Enter file in which the key is (/Users/tekkub/.ssh/id_rsa):
Key has comment '/Users/tekkub/.ssh/id_rsa'
Enter new passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved with the new passphrase.
If your key had passphrase
then, There's no way to recover the passphrase for a pair of SSH keys. In that case you have to create a new pair of SSH keys.
You can get at the data values like this:
string json = @"
[
{ ""General"" : ""At this time we do not have any frequent support requests."" },
{ ""Support"" : ""For support inquires, please see our support page."" }
]";
JArray a = JArray.Parse(json);
foreach (JObject o in a.Children<JObject>())
{
foreach (JProperty p in o.Properties())
{
string name = p.Name;
string value = (string)p.Value;
Console.WriteLine(name + " -- " + value);
}
}
Fiddle: https://dotnetfiddle.net/uox4Vt
I found useful npm package https://www.npmjs.com/package/element-resize-detector
An optimized cross-browser resize listener for elements.
Can use it with React component or functional component(Specially useful for react hooks)
You can get around the "impedance mismatch" caused by the lack of precision in the DateTimeField/date
object comparison -- that can occur if using range -- by using a datetime.timedelta to add a day to last date in the range. This works like:
start = date(2012, 12, 11)
end = date(2012, 12, 18)
new_end = end + datetime.timedelta(days=1)
ExampleModel.objects.filter(some_datetime_field__range=[start, new_end])
As discussed previously, without doing something like this, records are ignored on the last day.
Edited to avoid the use of datetime.combine
-- seems more logical to stick with date instances when comparing against a DateTimeField
, instead of messing about with throwaway (and confusing) datetime
objects. See further explanation in comments below.
double d = 3.1493745;
string s = $"{d:0.00}"; // or $"{d:#.##}"
Console.WriteLine(s); // Displays 3.15
I had the same problem, and solved by simply doing this at the command line:
mongodump -d databasename
echo 'db.dropDatabase()' | mongo databasename
mongorestore dump/databasename
To automate the answer of @Jordan S. Jones at WIN/DOS command-line,
Put this in a batch file named: getmns.bat (get mail name server):
@echo off
if @%1==@ goto USAGE
echo set type=MX>mnscmd.txt
echo %1>>mnscmd.txt
echo exit>>mnscmd.txt
nslookup<mnscmd.txt>mnsresult.txt
type mnsresult.txt
del mnsresult.txt
goto END
:USAGE
echo usage:
echo %0 domainname.ext
:END
echo.
For example:
getmns google.com
output:
google.com MX preference = 20, mail exchanger = alt1.aspmx.l.google.com
google.com MX preference = 10, mail exchanger = aspmx.l.google.com
google.com MX preference = 50, mail exchanger = alt4.aspmx.l.google.com
google.com MX preference = 40, mail exchanger = alt3.aspmx.l.google.com
google.com MX preference = 30, mail exchanger = alt2.aspmx.l.google.com
alt4.aspmx.l.google.com internet address = 74.125.25.27
alt3.aspmx.l.google.com internet address = 173.194.72.27
aspmx.l.google.com internet address = 173.194.65.27
alt1.aspmx.l.google.com internet address = 74.125.200.27
alt2.aspmx.l.google.com internet address = 64.233.187.27
For example to pipe the result again into a file do:
getmns google.com > google.mns.txt
:-D
Wrap a div around the image and the span and add the following to CSS like so:
HTML
<li id="CN2787">
<div><img class="fav_star" src="images/fav.png"></div>
<div><span>Text, text and more text</span></div>
</li>
CSS
#CN2787 > div {
display: inline-block;
vertical-align: top;
}
#CN2787 > div:first-of-type {
width: 35%;
}
#CN2787 > div:last-of-type {
width: 65%;
}
LESS
#CN2787 {
> div {
display: inline-block;
vertical-align: top;
}
> div:first-of-type {
width: 35%;
}
> div:last-of-type {
width: 65%;
}
}
Sometimes you may need to plot color precisely based on the x-value case. For example, you may have a dataframe with 3 types of variables and some data points. And you want to do following,
In this case, you may have to write to short function to map the x-values to corresponding color names as a list and then pass on that list to the plt.scatter
command.
x=['A','B','B','C','A','B']
y=[15,30,25,18,22,13]
# Function to map the colors as a list from the input list of x variables
def pltcolor(lst):
cols=[]
for l in lst:
if l=='A':
cols.append('red')
elif l=='B':
cols.append('blue')
else:
cols.append('green')
return cols
# Create the colors list using the function above
cols=pltcolor(x)
plt.scatter(x=x,y=y,s=500,c=cols) #Pass on the list created by the function here
plt.grid(True)
plt.show()
To sum it up,in object oriented programming, everything is modeled into classes and objects. Classes contain properties and methods. Public, private and protected keywords are used to specify access to these members(properties and methods) of a class from other classes or other .dlls or even other applications.
q = input("Apple")
w = input("Ball")
Definition = {'apple': q, 'ball': w}
they're not really ordered, but you can do:
var first;
for (var i in obj) {
if (obj.hasOwnProperty(i) && typeof(i) !== 'function') {
first = obj[i];
break;
}
}
the .hasOwnProperty()
is important to ignore prototyped objects.
There are two ways I know of
1) Console.ReadLine()
at the end of the program. Disadvantage, you have to change your code and have to remember to take it out
2) Run outside of the debugger CONTROL-F5
this opens a console window outside of visual studio and that window won't close when finished. Advantage, you don't have to change your code. Disadvantage, if there is an exception, it won't drop into the debugger (however when you do get exceptions, you can simply just rerun it in the debugger)
(function ($) {
$(document).ready(function(){
$("#myspan").text("This is span");
});
}(jQuery));
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<span id="myspan"> hereismytext </span>
_x000D_
user text()
to change span text.
I had the same problem and searched the web for several hours but I couldn't find any solution so I made my own. I wondered why the .net configuration system is so inflexible.
Background: I want to have my DAL.dll to have its own config file for database and DAL settings. I also need the app.config for Enterprise Library and its own configurations. So I need both the app.config and dll.config.
What I did not wanted to do is pass-through every property/setting from the app to my DAL layer!
to bend the "AppDomain.CurrentDomain.SetupInformation.ConfigurationFile" is not possible because I need it for the normal app.config behavior.
My requirements/point of views were:
I came up with modifying the Settings.cs file and implemented a method that opens the ClassLibrary1.dll.config and reads the section information in a private field. After that, I've overriden "this[string propertyName]" so the generated Settings.Desginer.cs calls into my new Property instead of the base class. There the setting is read out of the List.
Finally there is the following code:
internal sealed partial class Settings
{
private List<ConfigurationElement> list;
/// <summary>
/// Initializes a new instance of the <see cref="Settings"/> class.
/// </summary>
public Settings()
{
this.OpenAndStoreConfiguration();
}
/// <summary>
/// Opens the dll.config file and reads its sections into a private List of ConfigurationElement.
/// </summary>
private void OpenAndStoreConfiguration()
{
string codebase = System.Reflection.Assembly.GetExecutingAssembly().CodeBase;
Uri p = new Uri(codebase);
string localPath = p.LocalPath;
string executingFilename = System.IO.Path.GetFileNameWithoutExtension(localPath);
string sectionGroupName = "applicationSettings";
string sectionName = executingFilename + ".Properties.Settings";
string configName = localPath + ".config";
ExeConfigurationFileMap fileMap = new ExeConfigurationFileMap();
fileMap.ExeConfigFilename = configName;
Configuration config = ConfigurationManager.OpenMappedExeConfiguration(fileMap, ConfigurationUserLevel.None);
// read section of properties
var sectionGroup = config.GetSectionGroup(sectionGroupName);
var settingsSection = (ClientSettingsSection)sectionGroup.Sections[sectionName];
list = settingsSection.Settings.OfType<ConfigurationElement>().ToList();
// read section of Connectionstrings
var sections = config.Sections.OfType<ConfigurationSection>();
var connSection = (from section in sections
where section.GetType() == typeof(ConnectionStringsSection)
select section).FirstOrDefault() as ConnectionStringsSection;
if (connSection != null)
{
list.AddRange(connSection.ConnectionStrings.Cast<ConfigurationElement>());
}
}
/// <summary>
/// Gets or sets the <see cref="System.Object"/> with the specified property name.
/// </summary>
/// <value></value>
public override object this[string propertyName]
{
get
{
var result = (from item in list
where Convert.ToString(item.ElementInformation.Properties["name"].Value) == propertyName
select item).FirstOrDefault();
if (result != null)
{
if (result.ElementInformation.Type == typeof(ConnectionStringSettings))
{
return result.ElementInformation.Properties["connectionString"].Value;
}
else if (result.ElementInformation.Type == typeof(SettingElement))
{
return result.ElementInformation.Properties["value"].Value;
}
}
return null;
}
// ignore
set
{
base[propertyName] = value;
}
}
You just will have to copy your ClassLibrary1.dll.config from the ClassLibrary1 output directory to your application's output directory. Perhaps someone will find it useful.
TLDR: brew install [email protected]
See answer below for more details.
*(I’ve re-edited my answer to give a more thorough workflow for installing/using older software versions with homebrew. Feel free to add a note if you found the old version better.)
Let’s start with the simplest case:
When homebrew installs a new formula, it puts it in a versioned directory like /usr/local/Cellar/postgresql/9.3.1
. Only symbolic links to this folder are then installed globally. In principle, this makes it pretty easy to switch between two installed versions. (*)
If you have been using homebrew for longer and never removed older versions (using, for example brew cleanup
), chances are that some older version of your program may still be around. If you want to simply activate that previous version, brew switch
is the easiest way to do this.
Check with brew info postgresql
(or brew switch postgresql <TAB>
) whether the older version is installed:
$ brew info postgresql
postgresql: stable 9.3.2 (bottled)
http://www.postgresql.org/
Conflicts with: postgres-xc
/usr/local/Cellar/postgresql/9.1.5 (2755 files, 37M)
Built from source
/usr/local/Cellar/postgresql/9.3.2 (2924 files, 39M) *
Poured from bottle
From: https://github.com/Homebrew/homebrew/commits/master/Library/Formula/postgresql.rb
# … and some more
We see that some older version is already installed. We may activate it using brew switch
:
$ brew switch postgresql 9.1.5
Cleaning /usr/local/Cellar/postgresql/9.1.5
Cleaning /usr/local/Cellar/postgresql/9.3.2
384 links created for /usr/local/Cellar/postgresql/9.1.5
Let’s double-check what is activated:
$ brew info postgresql
postgresql: stable 9.3.2 (bottled)
http://www.postgresql.org/
Conflicts with: postgres-xc
/usr/local/Cellar/postgresql/9.1.5 (2755 files, 37M) *
Built from source
/usr/local/Cellar/postgresql/9.3.2 (2924 files, 39M)
Poured from bottle
From: https://github.com/Homebrew/homebrew/commits/master/Library/Formula/postgresql.rb
# … and some more
Note that the star *
has moved to the newly activated version
(*) Please note that brew switch
only works as long as all dependencies of the older version are still around. In some cases, a rebuild of the older version may become necessary. Therefore, using brew switch
is mostly useful when one wants to switch between two versions not too far apart.
Especially for larger software projects, it is very probably that there is a high enough demand for several (potentially API incompatible) major versions of a certain piece of software. As of March 2012, Homebrew 0.9 provides a mechanism for this: brew tap
& the homebrew versions repository.
That versions repository may include backports of older versions for several formulae. (Mostly only the large and famous ones, but of course they’ll also have several formulae for postgresql.)
brew search postgresql
will show you where to look:
$ brew search postgresql
postgresql
homebrew/versions/postgresql8 homebrew/versions/postgresql91
homebrew/versions/postgresql9 homebrew/versions/postgresql92
We can simply install it by typing
$ brew install homebrew/versions/postgresql8
Cloning into '/usr/local/Library/Taps/homebrew-versions'...
remote: Counting objects: 1563, done.
remote: Compressing objects: 100% (943/943), done.
remote: Total 1563 (delta 864), reused 1272 (delta 620)
Receiving objects: 100% (1563/1563), 422.83 KiB | 339.00 KiB/s, done.
Resolving deltas: 100% (864/864), done.
Checking connectivity... done.
Tapped 125 formula
==> Downloading http://ftp.postgresql.org/pub/source/v8.4.19/postgresql-8.4.19.tar.bz2
# …
Note that this has automatically tapped the homebrew/versions
tap. (Check with brew tap
, remove with brew untap homebrew/versions
.) The following would have been equivalent:
$ brew tap homebrew/versions
$ brew install postgresql8
As long as the backported version formulae stay up-to-date, this approach is probably the best way to deal with older software.
The following approaches are listed mostly for completeness. Both try to resurrect some undead formula from the brew repository. Due to changed dependencies, API changes in the formula spec or simply a change in the download URL, things may or may not work.
Since the whole formula directory is a git repository, one can install specific versions using plain git commands. However, we need to find a way to get to a commit where the old version was available.
a) historic times
Between August 2011 and October 2014, homebrew had a brew versions
command, which spat out all available versions with their respective SHA hashes. As of October 2014, you have to do a brew tap homebrew/boneyard
before you can use it. As the name of the tap suggests, you should probably only do this as a last resort.
E.g.
$ brew versions postgresql
Warning: brew-versions is unsupported and may be removed soon.
Please use the homebrew-versions tap instead:
https://github.com/Homebrew/homebrew-versions
9.3.2 git checkout 3c86d2b Library/Formula/postgresql.rb
9.3.1 git checkout a267a3e Library/Formula/postgresql.rb
9.3.0 git checkout ae59e09 Library/Formula/postgresql.rb
9.2.4 git checkout e3ac215 Library/Formula/postgresql.rb
9.2.3 git checkout c80b37c Library/Formula/postgresql.rb
9.2.2 git checkout 9076baa Library/Formula/postgresql.rb
9.2.1 git checkout 5825f62 Library/Formula/postgresql.rb
9.2.0 git checkout 2f6cbc6 Library/Formula/postgresql.rb
9.1.5 git checkout 6b8d25f Library/Formula/postgresql.rb
9.1.4 git checkout c40c7bf Library/Formula/postgresql.rb
9.1.3 git checkout 05c7954 Library/Formula/postgresql.rb
9.1.2 git checkout dfcc838 Library/Formula/postgresql.rb
9.1.1 git checkout 4ef8fb0 Library/Formula/postgresql.rb
9.0.4 git checkout 2accac4 Library/Formula/postgresql.rb
9.0.3 git checkout b782d9d Library/Formula/postgresql.rb
As you can see, it advises against using it. Homebrew spits out all versions it can find with its internal heuristic and shows you a way to retrieve the old formulae. Let’s try it.
# First, go to the homebrew base directory
$ cd $( brew --prefix )
# Checkout some old formula
$ git checkout 6b8d25f Library/Formula/postgresql.rb
$ brew install postgresql
# … installing
Now that the older postgresql version is installed, we can re-install the latest formula in order to keep our repository clean:
$ git checkout -- Library/Formula/postgresql.rb
brew switch
is your friend to change between the old and the new.
b) prehistoric times
For special needs, we may also try our own digging through the homebrew repo.
$ cd Library/Taps/homebrew/homebrew-core && git log -S'8.4.4' -- Formula/postgresql.rb
git log -S
looks for all commits in which the string '8.4.4'
was either added or removed in the file Library/Taps/homebrew/homebrew-core/Formula/postgresql.rb
. We get two commits as a result.
commit 7dc7ccef9e1ab7d2fc351d7935c96a0e0b031552
Author: Aku Kotkavuo
Date: Sun Sep 19 18:03:41 2010 +0300
Update PostgreSQL to 9.0.0.
Signed-off-by: Adam Vandenberg
commit fa992c6a82eebdc4cc36a0c0d2837f4c02f3f422
Author: David Höppner
Date: Sun May 16 12:35:18 2010 +0200
postgresql: update version to 8.4.4
Obviously, fa992c6a82eebdc4cc36a0c0d2837f4c02f3f422
is the commit we’re interested in. As this commit is pretty old, we’ll try to downgrade the complete homebrew installation (that way, the formula API is more or less guaranteed to be valid):
$ git checkout -b postgresql-8.4.4 fa992c6a82eebdc4cc36a0c0d2837f4c02f3f422
$ brew install postgresql
$ git checkout master
$ git branch -d postgresql-8.4.4
You may skip the last command to keep the reference in your git repository.
One note: When checking out the older commit, you temporarily downgrade your homebrew installation. So, you should be careful as some commands in homebrew might be different to the most recent version.
It’s not too hard and you may then upload it to your own repository. Used to be Homebrew-Versions, but that is now discontinued.
If you want to keep a certain version of, say postgresql, around and stop it from being updated when you do the natural brew update; brew upgrade
procedure, you can pin a formula:
$ brew pin postgresql
Pinned formulae are listed in /usr/local/Library/PinnedKegs/
and once you want to bring in the latest changes and updates, you can unpin it again:
$ brew unpin postgresql
You can create field in your parent Activity Class:
public class MainActivity extends AppCompatActivity {
public Fragment fr;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
}
And then inside each fragment class:
public class SomeFragment extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
((MainActivity) getActivity()).fr = this;
}
Your 'fr' field is current fragment Object
It's working also with popBackStack()
The working code
var jsonData = [{person:"me", age :"30"},{person:"you",age:"25"}];_x000D_
_x000D_
for(var obj in jsonData){_x000D_
if(jsonData.hasOwnProperty(obj)){_x000D_
for(var prop in jsonData[obj]){_x000D_
if(jsonData[obj].hasOwnProperty(prop)){_x000D_
alert(prop + ':' + jsonData[obj][prop]);_x000D_
}_x000D_
}_x000D_
}_x000D_
}
_x000D_
I am answering this for the benefit of future community users. There were multiple issues. If you encounter this problem, I suggest you look for the following:
Once I did these three things, I solved my problem.
Combining the input from everyone else (use not, no parens, use os.mkdir
) you'd get...
special_path_for_john = "/usr/share/sounds/blues"
if not os.path.exists(special_path_for_john):
os.mkdir(special_path_for_john)
When working with bootsrap usually face three main problems:
To solve first two problems download this small plugin https://github.com/codekipple/conformity
The third problem is solved here http://www.minimit.com/articles/solutions-tutorials/bootstrap-3-responsive-centered-columns
<style>
[class*=col-] {position: relative}
.row-conformity .to-bottom {position:absolute; bottom:0; left:0; right:0}
.row-centered {text-align:center}
.row-centered [class*=col-] {display:inline-block; float:none; text-align:left; margin-right:-4px; vertical-align:top}
</style>
<script src="assets/conformity/conformity.js"></script>
<script>
$(document).ready(function () {
$('.row-conformity > [class*=col-]').conformity();
$(window).on('resize', function() {
$('.row-conformity > [class*=col-]').conformity();
});
});
</script>
<div class="row row-conformity">
<div class="col-sm-3">
I<br>create<br>highest<br>column
</div>
<div class="col-sm-3">
<div class="to-bottom">
I am on the bottom
</div>
</div>
</div>
<div class="row row-conformity">
<div class="col-sm-4">We all have equal height</div>
<div class="col-sm-4">...</div>
<div class="col-sm-4">...</div>
<div class="col-sm-4">...</div>
<div class="col-sm-4">...</div>
<div class="col-sm-4">...</div>
</div>
<div class="row row-centered">
<div class="col-sm-3">...</div>
<div class="col-sm-4">...</div>
</div>
<div class="row row-conformity row-centered">
...
</div>
What TJ Crowder said, everyway will have some kind of hidden iteration, with lodash this becomes:
var index = _.findIndex(array, {prop2: 'yutu'})
I'm using IBM Data Studio v 3.1.1.0 with an underlying DB2 for z/OS and the accepted answer didn't work for me. If you're using IBM Data Studio (v3.1.1.0) you can:
You can also use position fixed css property.
<!-- html code -->
<div class="box" id="myElement"></div>
/* css code */
.box {
position: fixed;
}
// js code
document.getElementById('myElement').style.top = 0; //or whatever
document.getElementById('myElement').style.left = 0; // or whatever
Sometimes it's knowing what to ask. I didn't know as I am a developer who has taken on some DevOps work.
Apparently 'passwordless' or NOPASSWD login is a thing which you need to put in the /etc/sudoers file.
The answer to my question is at Ansible: best practice for maintaining list of sudoers.
The Ansible playbook code fragment looks like this from my problem:
- name: Make sure we have a 'wheel' group
group:
name: wheel
state: present
- name: Allow 'wheel' group to have passwordless sudo
lineinfile:
dest: /etc/sudoers
state: present
regexp: '^%wheel'
line: '%wheel ALL=(ALL) NOPASSWD: ALL'
validate: 'visudo -cf %s'
- name: Add sudoers users to wheel group
user:
name=deployer
groups=wheel
append=yes
state=present
createhome=yes
- name: Set up authorized keys for the deployer user
authorized_key: user=deployer key="{{item}}"
with_file:
- /home/railsdev/.ssh/id_rsa.pub
And the best part is that the solution is idempotent. It doesn't add the line
%wheel ALL=(ALL) NOPASSWD: ALL
to /etc/sudoers when the playbook is run a subsequent time. And yes...I was able to ssh into the server as "deployer" and run sudo commands without having to give a password.
Yes, SQL Server 2012 supports multiple inserts - that feature was introduced in SQL Server 2008.
That makes me wonder if you have Management Studio 2012, but you're really connected to a SQL Server 2005 instance ...
What version of the SQL Server engine do you get from SELECT @@VERSION
??
Ok, Here's what I found out.
What I didn't understand is that all fragments that are attached to an activity when a config change happens (phone rotates) are recreated and added back to the activity. (which makes sense)
What was happening in the TabListener constructor was the tab was detached if it was found and attached to the activity. See below:
mFragment = mActivity.getFragmentManager().findFragmentByTag(mTag);
if (mFragment != null && !mFragment.isDetached()) {
Log.d(TAG, "constructor: detaching fragment " + mTag);
FragmentTransaction ft = mActivity.getFragmentManager().beginTransaction();
ft.detach(mFragment);
ft.commit();
}
Later in the activity onCreate the previously selected tab was selected from the saved instance state. See below:
if (savedInstanceState != null) {
bar.setSelectedNavigationItem(savedInstanceState.getInt("tab", 0));
Log.d(TAG, "FragmentTabs.onCreate tab: " + savedInstanceState.getInt("tab"));
Log.d(TAG, "FragmentTabs.onCreate number: " + savedInstanceState.getInt("number"));
}
When the tab was selected it would be reattached in the onTabSelected callback.
public void onTabSelected(Tab tab, FragmentTransaction ft) {
if (mFragment == null) {
mFragment = Fragment.instantiate(mActivity, mClass.getName(), mArgs);
Log.d(TAG, "onTabSelected adding fragment " + mTag);
ft.add(android.R.id.content, mFragment, mTag);
} else {
Log.d(TAG, "onTabSelected attaching fragment " + mTag);
ft.attach(mFragment);
}
}
The fragment being attached is the second call to the onCreateView and onActivityCreated methods. (The first being when the system is recreating the acitivity and all attached fragments) The first time the onSavedInstanceState Bundle would have saved data but not the second time.
The solution is to not detach the fragment in the TabListener constructor, just leave it attached. (You still need to find it in the FragmentManager by it's tag) Also, in the onTabSelected method I check to see if the fragment is detached before I attach it. Something like this:
public void onTabSelected(Tab tab, FragmentTransaction ft) {
if (mFragment == null) {
mFragment = Fragment.instantiate(mActivity, mClass.getName(), mArgs);
Log.d(TAG, "onTabSelected adding fragment " + mTag);
ft.add(android.R.id.content, mFragment, mTag);
} else {
if(mFragment.isDetached()) {
Log.d(TAG, "onTabSelected attaching fragment " + mTag);
ft.attach(mFragment);
} else {
Log.d(TAG, "onTabSelected fragment already attached " + mTag);
}
}
}
You could do it this way:
-- Notice how STATE got moved inside the condition:
CASE WHEN STATE = 2 AND RetailerProcessType IN (1, 2) THEN '"AUTHORISED"'
WHEN STATE = 1 AND RetailerProcessType = 2 THEN '"PENDING"'
ELSE '"DECLINED"'
END
The reason you can do an AND
here is that you are not checking the CASE
of STATE
, but instead you are CASING Conditions.
The key part here is that the STATE
condition is a part of the WHEN
.
try this command, xcopy c:\ (file or directory path) F:\ /e. If you want more details refer this site [[http://www.computerhope.com/xcopyhlp.htm]]
go to AndroidManifest.xml There you will find package as the attribute of manifest tag. Just select the part you want to change, right click-> refactor -> rename
Maybe earlier it was hard, but as of today it is not anymore.
You might also want to change the app id in
defaultConfig {
applicationId
}
Short & Sweet
document.getElementsByClassName
returns an HTMLCollection
(an array-like object) of all elements matching the class name. The style
property is defined for Element
not for HTMLCollection
. You should access the first element using the bracket(subscript) notation.
document.getElementsByClassName('appBanner')[0].style.visibility = 'hidden';
To change the style rules of all elements matching the class, using the Selectors API:
[].forEach.call(document.querySelectorAll('.appBanner'), function (el) {
el.style.visibility = 'hidden';
});
If for...of
is available:
for (let el of document.querySelectorAll('.appBanner')) el.style.visibility = 'hidden';
As described here for a post request :
var http = require('http');
var options = {
host: 'www.host.com',
path: '/',
port: '80',
method: 'POST'
};
callback = function(response) {
var str = ''
response.on('data', function (chunk) {
str += chunk;
});
response.on('end', function () {
console.log(str);
});
}
var req = http.request(options, callback);
//This is the data we are posting, it needs to be a string or a buffer
req.write("data");
req.end();
let imageDataDict:[String: UIImage] = ["image": image]
// post a notification
NotificationCenter.default.post(name: NSNotification.Name(rawValue: "notificationName"), object: nil, userInfo: imageDataDict)
// `default` is now a property, not a method call
// Register to receive notification in your class
NotificationCenter.default.addObserver(self, selector: #selector(self.showSpinningWheel(_:)), name: NSNotification.Name(rawValue: "notificationName"), object: nil)
// handle notification
func showSpinningWheel(_ notification: NSNotification) {
print(notification.userInfo ?? "")
if let dict = notification.userInfo as NSDictionary? {
if let id = dict["image"] as? UIImage{
// do something with your image
}
}
}
let imageDataDict:[String: UIImage] = ["image": image]
// post a notification
NotificationCenter.default.post(name: NSNotification.Name(rawValue: "notificationName"), object: nil, userInfo: imageDataDict)
// `default` is now a property, not a method call
// Register to receive notification in your class
NotificationCenter.default.addObserver(self, selector: #selector(self.showSpinningWheel(_:)), name: NSNotification.Name(rawValue: "notificationName"), object: nil)
// handle notification
@objc func showSpinningWheel(_ notification: NSNotification) {
print(notification.userInfo ?? "")
if let dict = notification.userInfo as NSDictionary? {
if let id = dict["image"] as? UIImage{
// do something with your image
}
}
}
Can a Python function be an argument of another function?
Yes.
def myfunc(anotherfunc, extraArgs):
anotherfunc(*extraArgs)
To be more specific ... with various arguments ...
>>> def x(a,b):
... print "param 1 %s param 2 %s"%(a,b)
...
>>> def y(z,t):
... z(*t)
...
>>> y(x,("hello","manuel"))
param 1 hello param 2 manuel
>>>
/* Current time */
select now();
/* Epoch from current time;
Epoch is number of seconds since 1970-01-01 00:00:00+00 */
select extract(epoch from now());
/* Get back time from epoch */
-- Option 1 - use to_timestamp function
select to_timestamp( extract(epoch from now()));
-- Option 2 - add seconds to 'epoch'
select timestamp with time zone 'epoch'
+ extract(epoch from now()) * interval '1 second';
/* Cast timestamp to date */
-- Based on Option 1
select to_timestamp(extract(epoch from now()))::date;
-- Based on Option 2
select (timestamp with time zone 'epoch'
+ extract(epoch from now()) * interval '1 second')::date;
/* For column epoch_ms */
select to_timestamp(extract(epoch epoch_ms))::date;
Here's a library that really helps: https://cdn.rawgit.com/ccampbell/mousetrap/2e5c2a8adbe80a89050aaf4e02c45f02f1cc12d4/tests/libs/key-event.js
I don't know from where did it came from, but it is helpful. It adds a .simulate()
method to window.KeyEvent
, so you use it simply with KeyEvent.simulate(0, 13)
for simulating an enter
or KeyEvent.simulate(81, 81)
for a 'Q'
.
I got it at https://github.com/ccampbell/mousetrap/tree/master/tests.
curl's --data
will by default send Content-Type: application/x-www-form-urlencoded
in the request header. However, when using Postman's raw
body mode, Postman sends Content-Type: text/plain
in the request header.
So to achieve the same thing as Postman, specify -H "Content-Type: text/plain"
for curl:
curl -X POST -H "Content-Type: text/plain" --data "this is raw data" http://78.41.xx.xx:7778/
Note that if you want to watch the full request sent by Postman, you can enable debugging for packed app. Check this link for all instructions. Then you can inspect the app (right-click in Postman) and view all requests sent from Postman in the network
tab :
Parse the JSON string with JSON.parse()
, and the data becomes a JavaScript object:
JSON.parse(jsonString)
Here, JSON represents to process JSON dataset.
Imagine we received this text from a web server:
'{ "name":"John", "age":30, "city":"New York"}'
To parse into a JSON object:
var obj = JSON.parse('{ "name":"John", "age":30, "city":"New York"}');
Here obj
is the respective JSON object which looks like:
{ "name":"John", "age":30, "city":"New York"}
To fetch a value use the .
operator:
obj.name // John
obj.age //30
Convert a JavaScript object into a string with JSON.stringify()
.
Thanks, riaraos, uninstalling KB952241 was the solution for me, too. Before doing that I tried to run the installer from "Programs and Features" and from the installation DVD without success. I did not want to completely remove the VS 2008 installation but only add a few components.
Notes on my system:
Windows 7 Beta 1 Visual Studio 2008 SP1
Previous answers got you list of torch.Size Here is how to get list of ints
listofints = [int(x) for x in tensor.shape]
To do it exactly your way? You could use the for...else structure
for url in list_of_urls:
for url_dict in urls:
if url_dict['url'] == url:
url_dict['nbr'] += 1
break
else:
urls.append(dict(url=url, nbr=1))
But it is quite inelegant. Do you really have to store the visited urls as a LIST? If you sort it as a dict, indexed by url string, for example, it would be way cleaner:
urls = {'http://www.google.fr/': dict(url='http://www.google.fr/', nbr=1)}
for url in list_of_urls:
if url in urls:
urls[url]['nbr'] += 1
else:
urls[url] = dict(url=url, nbr=1)
A few things to note in that second example:
urls
removes the need for going through the whole urls
list when testing for one single url
. This approach will be faster.dict( )
instead of braces makes your code shorterlist_of_urls
, urls
and url
as variable names make the code quite hard to parse. It's better to find something clearer, such as urls_to_visit
, urls_already_visited
and current_url
. I know, it's longer. But it's clearer.And of course I'm assuming that dict(url='http://www.google.fr', nbr=1)
is a simplification of your own data structure, because otherwise, urls
could simply be:
urls = {'http://www.google.fr':1}
for url in list_of_urls:
if url in urls:
urls[url] += 1
else:
urls[url] = 1
Which can get very elegant with the defaultdict stance:
urls = collections.defaultdict(int)
for url in list_of_urls:
urls[url] += 1
Check for the import statements.It should be ended with semicolon. If you miss any, you will get this error.
Also check whether following import statement added in you component.
import { threadId } from 'worker_threads';
If so remove that line. It works for me.
Here is a list of all unicode emoji's available:
https://en.wikipedia.org/wiki/Emoji#Unicode_blocks
Example:
echo -e "\U1F304"
For get the ASCII value of this character use hexdump
echo -e "" | hexdump -C
00000000 f0 9f 8c 84 0a |.....|
00000005
And then use the values informed in hex format
echo -e "\xF0\x9F\x8C\x84\x0A"