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Django migration strategy for renaming a model and relationship fields
...ome errors if you don't update the names where it's imported e.g. admin.py and even older migration files (!).
Update: As ceasaro mentions, newer versions of Django are usually able to detect and ask if a model is renamed. So try manage.py makemigrations first and then check the migration file.
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MySQL pagination without double-querying?
...dering if there was a way to get the number of results from a MySQL query, and at the same time limit the results.
9 Answer...
Can anyone explain IEnumerable and IEnumerator to me? [closed]
Can anyone explain IEnumerable and IEnumerator to me?
16 Answers
16
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Swift Beta performance: sorting arrays
I was implementing an algorithm in Swift Beta and noticed that the performance was very poor. After digging deeper I realized that one of the bottlenecks was something as simple as sorting arrays. The relevant part is here:
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user authentication libraries for node.js?
...an do password authentication for a user (using a custom backend auth DB), and associate that user with a session.
15 Answe...
Failed to load the JNI shared Library (JDK)
... a 32bit function wants to call a 64bit one, or alike. Same with alignment and datasizes and everything. I guess I dont have to tell anything more =P
– imacake
Mar 17 '12 at 17:15
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Failed to install Python Cryptography package with PIP and setup.py
... pip install cryptography or by downloading the package from their site and running python setup.py , I get the following error:
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What is aria-label and how should I use it?
...how will he hear close? What can I do in my browser (chrome) to hear this? And how can a blind person select this button if he have no idea where it is?
– Salvador Dali
Feb 26 '14 at 11:57
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Checkout another branch when there are uncommitted changes on the current branch
... Git version 2.13, to fix up some problems with the arguments to git stash and allow for new options. Both do the same thing, when used in the basic ways.
You can stop reading here, if you like!
If Git won't let you switch, you already have a remedy: use git stash or git commit; or, if your chan...
Add regression line equation and R^2 on graph
I wonder how to add regression line equation and R^2 on the ggplot . My code is:
9 Answers
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