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Best way to create unique token in Rails?
...when using Ruby 1.9 and ActiveRecord):
class ModelName < ActiveRecord::Base
before_create :generate_token
protected
def generate_token
self.token = loop do
random_token = SecureRandom.urlsafe_base64(nil, false)
break random_token unless ModelName.exists?(token: random_to...
Download file from web in Python 3
...access to the file.
import urllib.request
import gzip
...
# Read the first 64 bytes of the file inside the .gz archive located at `url`
url = 'http://example.com/something.gz'
with urllib.request.urlopen(url) as response:
with gzip.GzipFile(fileobj=response) as uncompressed:
file_header ...
Effects of changing Django's SECRET_KEY
...
Edit: This answer is based on django 1.5
SECRET_KEY is used in a lot of various places, I'll point out what is impacted by it first and then try to go over that list and give precise explanation of the impact.
The list of things using SECRET_KE...
input type=file show only button
...gt;Select file</label>
Add the style to the label as a button.
Live Demo
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Converting strings to floats in a DataFrame
... [14]: df.convert_objects(convert_numeric=True).dtypes
Out[14]:
A float64
B float64
dtype: object
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Best practices for adding .gitignore file for Python projects? [closed]
...alled.cfg
bin
develop-eggs
dist
downloads
eggs
parts
src/*.egg-info
lib
lib64
Thanks to Jacob Kaplan-Moss
Also I tend to put .svn in since we use several SCM-s where I work.
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How do I set a conditional breakpoint in gdb, when char* x points to a string whose value equals “he
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Switching the order of block elements with CSS [duplicate]
...wo lightweight CSS solutions:
Using flex, flex-flow and order:
Example1: Demo Fiddle
body{
display:flex;
flex-flow: column;
}
#blockA{
order:4;
}
#blockB{
order:3;
}
#blockC{
order:2;
}
Alternatively, reverse the Y scale:
...
Storing time-series data, relational or non?
...n is never a Key (duplicate rows, which are prohibited in a Relational database, must be prevented by other means).
The Id column requires an additional Index, which obviously impedes the speed of INSERT/DELETE, and adds to the disk space used.
You can get rid of it. Please.
Elevation
Now ...
Integrated Markdown WYSIWYG text editor
...te, CKEditor now includes plugins that allow BBCode input and output.
A demo is available here: http://ckeditor.com/demo#bbcode
EDIT Apr 13, 2015:
Someone professing to develop CKEditor says that the appearance of CommonMark is a game changer, and we could possibly see a proper markup interface ...