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Django migration strategy for renaming a model and relationship fields

...kemigrations myapp command will ask you if you renamed your model. E.g.: Did you rename the myapp.Foo model to Bar? [y/N] If you answer 'y' your migration will contain the migration.RenameModel('Foo', 'Bar') Same counts for the renamed fields :-) – ceasaro Apr...
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What's the difference between django OneToOneField and ForeignKey?

...del) and ForeignKey(SomeModel, unique=True). As stated in The Definitive Guide to Django: OneToOneField A one-to-one relationship. Conceptually, this is similar to a ForeignKey with unique=True, but the "reverse" side of the relation will directly return a single object. In contrast to th...
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Programmatically fire button click event?

...ode, not manually as a user. Is it possible in iOS development? Please provide your suggestions and guide me how to do that. ...
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Python Requests and persistent sessions

... to understand how to maintain such a session. Additionally, I want to provide a class which keeps the session maintained over different runs of a script (with a cache file). This means a proper "login" is only performed when required (timout or no session exists in cache). Also it supports proxy se...
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How can I expand the full path of the current file to pass to a command in Vim?

... The other two answers didn’t work for me (for some reason). However, I found that this combo displays the full path when typed in Normal mode: Press 1 then CtrlG Source: “Get the name of the current file” on the Vim Tips Wiki. See also the ...
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What is PostgreSQL explain telling me exactly?

... I am mystified why people think slide decks make good technical documentation. A video of the talk might be helpful, but the information density of that slide deck is very close to zero. In the first six slides (1/5th of the total), there is exactly 1 sentenc...
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How do I do a 'git status' so it doesn't display untracked files without using .gitignore?

...o which is equivalent to: git status --untracked-files=no It's a bit hidden in the manuals, but the manpage for status says "supports the same options as git-commit", so that's where you'd have to look. share |...
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Hide all warnings in ipython

I need to produce a screencast of an ipython session, and to avoid confusing viewers, I want to disable all warnings emitted by warnings.warn calls from different packages. Is there a way to configure the ipythonrc file to automatically disable all such warnings? ...
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Android update activity UI from service

...here is new task, I want to refresh the activity UI to show that info. I did find https://github.com/commonsguy/cw-andtutorials/tree/master/18-LocalService/ this example. Is that a good approch ? Any other examples? ...
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How to load program reading stdin and taking parameters in gdb?

... The redirection seems to work but I get some errors. Failed to read a valid object file image from memory. Program exited with code 042. Any ideas? – vinc456 Jan 18 '09 at 18:04 ...