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Django using get_user_model vs settings.AUTH_USER_MODEL
...s.AUTH_USER_MODEL will delay the retrieval of the actual model class until all apps are loaded. get_user_model will attempt to retrieve the model class at the moment your app is imported the first time.
get_user_model cannot guarantee that the User model is already loaded into the app cache. It mi...
Iterating through a Collection, avoiding ConcurrentModificationException when removing objects in a
We all know you can't do the following because of ConcurrentModificationException :
26 Answers
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How do you clone a Git repository into a specific folder?
...t/it/
mv /where/it/is/right/now/.* /where/I/want/it/
The first line grabs all normal files, the second line grabs dot-files. It is also possibe to do it in one line by enabling dotglob (i.e. shopt -s dotglob) but that is probably a bad solution if you are asking the question this answer answers.
Be...
jQuery - get a list of values of an attribute from elements of a class
I have a class .object which has an attribute called level . I want to get a list of all the different values of level on the page so I can select the highest one.
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In absence of preprocessor macros, is there a way to define practical scheme specific flags at proje
... The simplest example is the DEBUG=1 macro that is defined by default for all Xcode projects in the default scheme for the Run build. One could query #ifdef DEBUG ... and make decisions in the code accordingly, even compiling out non-necessary code.
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How do I step out of a loop with Ruby Pry?
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To exit Pry unconditionally, type
exit-program
Edit from @Nick's comment: Also works:
!!!
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How to revert a merge commit that's already pushed to remote branch?
...se a merge commit has more than one parent, and Git does not know automatically which parent was the mainline, and which parent was the branch you want to un-merge.
When you view a merge commit in the output of git log, you will see its parents listed on the line that begins with Merge:
commit 8f9...
AI2 Media Notification
...in several apps, tapping an action button triggers the associated event in all apps at the same time. This is due to the global nature of the broadcast receivers used. Solution: The intents for the action buttons are individualized with the app name. When a broadcast is received, the name is c...
pip install mysql-python fails with EnvironmentError: mysql_config not found
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It seems mysql_config is missing on your system or the installer could not find it.
Be sure mysql_config is really installed.
For example on Debian/Ubuntu you must install the package:
sudo apt-get install libmysqlclient-dev
Maybe the mysql_config is not in your path, it will be ...
How to upgrade rubygems
I need to upgrade gems to 1.8 i tried installing the respective debian packages but it seems its not getting upgraded
8 An...