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How do I list all the columns in a table?
...ame> like '<column_prefix>%'; Will let you list only the columns starting with the prefix specified. Omitting the angle brackets of course.
– rstackhouse
Apr 10 '14 at 21:10
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Uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)
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I have faced this problem in many occassions when I try to start an old rails 2.3.5 project after having worked with rails 3>. In my case to solve the problem, I must do a rubygems update to version 1.4.2, this is:
sudo gem update --system 1.4.2
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Is there a difference between authentication and authorization?
...e user's identity. If the credentials are valid, the authorization process starts. Authentication process always proceeds to Authorization process.
Authorization:
Authorization is the process of allowing an authenticated users to access the resources by checking whether the user has access rights ...
Array_merge versus + [duplicate]
...he input array with numeric keys will be renumbered with incrementing keys starting from zero in the result array.
http://php.net/manual/en/function.array-merge.php
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Is there a visual profiler for Python? [closed]
...reated a graphical profile, described here. Maybe you could use that as a starting point for your own work.
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Could not reliably determine the server's fully qualified domain name
...</VirtualHost>** But still I am getting below error message.. **Starting httpd: Warning: DocumentRoot [/home/user/Softwares/mysite] does not exist httpd: Could not reliably determine the server's fully qualified domain name, using ::1 for ServerName
– mahesh
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How can I combine two commits into one commit? [duplicate]
...listing all the commits the rebase will traverse. You should see two lines starting with "pick". To proceed with squashing, change the first word of the second line from "pick" to "squash". Then save your file, and quit. Git will squash your first commit into your second last commit.
Note that this...
set the width of select2 input (through Angular-ui directive)
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This is an old question but new info is still worth posting...
Starting with Select2 version 3.4.0 there is an attribute dropdownAutoWidth which solves the problem and handles all the odd cases. Note it is not on by default. It resizes dynamically as the user makes selections, it adds wi...
Collapsing Sidebar with Bootstrap
...ap 3
Yes, it's possible. This "off-canvas" example should help to get you started.
https://codeply.com/p/esYgHWB2zJ
Basically you need to wrap the layout in an outer div, and use media queries to toggle the layout on smaller screens.
/* collapsed sidebar styles */
@media screen and (max-width: 7...
Detecting touch screen devices with Javascript
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var isTouchDevice = 'ontouchstart' in document.documentElement;
Note: Just because a device supports touch events doesn't necessarily mean that it is exclusively a touch screen device. Many devices (such as my Asus Zenbook) support both click and touc...