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How to empty/destroy a session in rails?
... available for clearing hash will work with sessions.
session.clear
or
if specific keys have to be destroyed:
session.delete(key)
Tested in rails 3.2
added
People have mentioned by session={} is a bad idea. Regarding session.clear, Lobati comments- It looks like you're probably better off...
test a file upload using rspec - rails
...
See bit.ly/OSrL7R (stack overflow question 3966263) if you are getting file does not exist errors. A different form is needed in Rails 3.2: @file = Rack::Test::UploadedFile.new(Rails.root.join('spec/fixtures/files/test.csv'), 'text/csv')
– Mike Blyth
...
How to change the font size on a matplotlib plot
...otlib.rc('font', **font)
This sets the font of all items to the font specified by the kwargs object, font.
Alternatively, you could also use the rcParams update method as suggested in this answer:
matplotlib.rcParams.update({'font.size': 22})
or
import matplotlib.pyplot as plt
plt.rcParams.up...
Bash if statement with multiple conditions throws an error
...ion. So your script would be like this:
my_error_flag=1
my_error_flag_o=1
if [ $my_error_flag -eq 1 ] || [ $my_error_flag_o -eq 2 ] || ([ $my_error_flag -eq 1 ] && [ $my_error_flag_o -eq 2 ]); then
echo "$my_error_flag"
else
echo "no flag"
fi
Although in your case you can disca...
What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]
...
utf8_general_ci is a very simple — and on Unicode, very broken — collation, one that gives incorrect results on general Unicode text. What it does is:
converts to Unicode normalization form D for canonical decomposition
re...
Disable developer mode extensions pop up in Chrome
...//extensions page.
You'll get an "Unsupported extensions disabled" popup if you try restarting Chrome at this point.
Then for Windows 7 or Windows 8:
Download Chrome group policy templates here
Copy [zip]\windows\admx\chrome.admx to c:\windows\policydefinitions
Copy [zip]\windows\admx\[yourl...
How to return a 200 HTTP Status Code from ASP.NET MVC 3 controller
...d parameters go here...)
{
// todo: put your processing code here
//If not using MVC5
return new HttpStatusCodeResult(200);
//If using MVC5
return new HttpStatusCodeResult(HttpStatusCode.OK); // OK = 200
}
...
How can I merge two hashes without overwritten duplicate keys in Ruby?
...
If you have two hashes, options and defaults, and you want to merge defaults into options without overwriting existing keys, what you really want to do is the reverse: merge options into defaults:
options = defaults.merge(op...
Saving vim macros
...
Also, if you need to insert special characters (like escape, in my case) use CTRL-V <ESC> in insert mode to insert the correct character. A literal <ESC> doesn't work
– adam_0
Jan ...
Moving matplotlib legend outside of the axis makes it cutoff by the figure box
...ting these in, often in ways that led to the code raising an error. I have now fixed the issues and tidied the arbitrary text to show how these are also considered within the bbox_extra_artists algorithm.
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