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Two color borders
... padding for the inner border
normal border for the outer one.
Example:
HTML:
<img src="http://cdn3.thumbs.common.smcloud.net/common/8/6/s/863444wpPN.jpg/r-0,500-n-863444wpPN.jpg" alt="malkovich" />
CSS:
img {
padding: 1px;
background: yellow;
border:1px solid black;
}
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Ways to implement data versioning in MongoDB
... has built in simple versioning
http://mongoid.org/en/mongoid/docs/extras.html#versioning
mongoid-history is a Ruby plugin that provides a significantly more complicated solution with auditing, undo and redo
https://github.com/aq1018/mongoid-history
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How to execute a Python script from the Django shell?
...d at: http://django-extensions.readthedocs.io/en/latest/command_extensions.html and documented at:
python manage.py runscript --help
There is a tutorial too.
Tested on Django 1.9.6, django-extensions 1.6.7.
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Setting Django up to use MySQL
...can easily install xampp first from https://www.apachefriends.org/download.html
Then follow the instructions as:
Install and run xampp from http://www.unixmen.com/install-xampp-stack-ubuntu-14-04/, then start Apache Web Server and MySQL Database from the GUI.
You can configure your web server as y...
WebService Client Generation Error with JDK8
... (based on http://docs.oracle.com/javase/7/docs/api/javax/xml/XMLConstants.html#ACCESS_EXTERNAL_SCHEMA)
Create a file named jaxp.properties (if it doesn't exist) under /path/to/jdk1.8.0/jre/lib and then write this line in it:
javax.xml.accessExternalSchema = all
That's all. Enjoy JDK 8.
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JPA eager fetch does not join
...ce-performance.blogspot.com/2010/08/batch-fetching-optimizing-object-graph.html
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JavaScript % (modulo) gives a negative result for negative numbers
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@ Shanimal: LOL! It does. An error by the HTML editor. The spec text does not.
– T.J. Crowder
Jul 25 '17 at 6:34
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Find the most frequent number in a numpy vector
...counts:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.bincount.html
and then probably use np.argmax:
a = np.array([1,2,3,1,2,1,1,1,3,2,2,1])
counts = np.bincount(a)
print(np.argmax(counts))
For a more complicated list (that perhaps contains negative numbers or non-integer values), you c...
Is there a real solution to debug cordova apps [closed]
I spent the last two days trying to figure out how to debug an HTML5 app I created using Cordova 3.2 and deployed to an Android 2.3 device. All the articles/posts I've seen provide hacks rather than real solutions :( and most of the time, none of them works for my case; debug the css styles and the ...
How do I check in SQLite whether a table exists?
... section titled "File Format For SQLite Databases": sqlite.org/fileformat2.html
– Bryan Oakley
Jan 11 '12 at 16:34
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