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Rails Migration: Remove constraint
...ke so
change_column :users, :address, :string, :null => true
Docs...
http://apidock.com/rails/ActiveRecord/ConnectionAdapters/SchemaStatements/change_column
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ssh: connect to host github.com port 22: Connection timed out
..... do
ssh -T git@github.com
this should timeout.
If that's the case use http protocol instead of ssh this way
just change your url in the config file to http.
Here is how :-
git config --local -e
change entry of
url = git@github.com:username/repo.git
to
url = https://github.com/username...
Binary Data in MySQL [closed]
...binary files into
// an sql database. More information can be found at http://www.phpbuilder.com/
?>
<html>
<head><title>Store binary data into SQL Database</title></head>
<body>
<?php
// Code that will be executed if the fo...
jQuery SVG vs. Raphael [closed]
...ite (Shameless plug) and then bounce over to the Dmitry's site from there.
http://www.irunmywebsite.com/raphael/raphaelsource.html
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Add floating point value to android resources/values
...
As described in this link http://droidista.blogspot.in/2012/04/adding-float-value-to-your-resources.html
Declare in dimen.xml
<item name="my_float_value" type="dimen" format="float">9.52</item>
Referencing from xml
@dimen/my_float_val...
Getting value of select (dropdown) before change
...is updated
previous = this.value;
});
})();
Working example: http://jsfiddle.net/x5PKf/766
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How do I get the APK of an installed app without root access?
... Settings >
Applications > Development and enable USB debugging, see
http://developer.android.com/tools/device.html
In Eclipse, open DDMS-window: Window > Open Perspective > Other... >
DDMS, see http://developer.android.com/tools/debugging/ddms.html
If you can't see your device try (r...
How can I get my Twitter Bootstrap buttons to right align?
... attribute and let bootstrap arrange the buttons.
For Bootstrap 2.3, see: http://getbootstrap.com/2.3.2/components.html#misc > Helper classes > .pull-right.
For Bootstrap 3, see: https://getbootstrap.com/docs/3.3/css/#helper-classes > Helper classes.
For Bootstrap 4, see: https://getbo...
Download JSON object as a file from browser
...tainer = document.getElementById('container');
container.appendChild(a);
http://jsfiddle.net/sz76c083/1
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demystify Flask app.secret_key
...s 'eb84e8da7ca23e9f83....'
# so you get the code from the mirror
download https://mirror.example-codedump.com/source_code.tar.gz
# you calculate the hash as instructed
sha1(source_code.tar.gz)
> eb84e8da7c....
Both hashes are the same, you know that you have an identical copy.
What's a coo...