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Rails migration for has_and_belongs_to_many join table
How do I do a script/generate migration to create a join table for a has_and_belongs_to_many relationship?
6 Answers
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When to wrap quotes around a shell variable?
...ne tell me whether or not I should wrap quotes around variables in a shell script?
5 Answers
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How to automatically start a service when running a docker container?
...mand to do this
CMD /usr/bin/mysqld_safe
This works only if there is a script like mysqld_safe.
Or wrap your scripts into start.sh and put this in end
CMD /start.sh
This is best if the command must perform a series of steps, again, /start.sh should stay running.
Note
For the beginner usi...
Using getopts to process long and short command line options
...o have long and short forms of command line options invoked using my shell script.
32 Answers
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How can I open a link in a new window?
... with <a href="myurl.html" target="_blank">My Link</a>? No Javascript needed...
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Try/Catch block in PHP not catching Exception
...n the same situation.
I had my exception in my namespace called A and the script was in a namespace called B. The problem was that I had A\MyException which equals (in PHP) \B\A\MyException (because my script is in the namespace called B!). All I had to do to fix it was to add backslash (or whateve...
Valid values for android:fontFamily and what they map to?
... |
Coming Soon | casual |
Dancing Script | cursive |
Dancing Script Bold | cursive | bold
Carrois Gothic SC | sans-serif-smallcaps |
(Noto Sans is a fallback font; you can't specify it dir...
How can I select an element with multiple classes in jQuery?
....a .b , .a .c').css('border', '2px solid yellow');
//selects b and c
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="a">a
<div class="b">b</div>
<div class="c">c</div>
<div class="d">d&...
What are the special dollar sign shell variables?
...f the most recent background command.
$0 is the name of the shell or shell script.
Most of the above can be found under Special Parameters in the Bash Reference Manual. There are all the environment variables set by the shell.
For a comprehensive index, please see the Reference Manual Variable In...
Is there a code obfuscator for PHP? [closed]
...t. If you just want something to stop non-programmers then here's a little script I wrote you can use:
<?php
$infile=$_SERVER['argv'][1];
$outfile=$_SERVER['argv'][2];
if (!$infile || !$outfile) {
die("Usage: php {$_SERVER['argv'][0]} <input file> <output file>\n");
}
echo "Proce...