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Get all related Django model objects
How can I get a list of all the model objects that have a ForeignKey pointing to an object? (Something like the delete confirmation page in the Django admin before DELETE CASCADE).
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Default filter in Django admin
How can I change the default filter choice from 'ALL'? I have a field named as status which has three values: activate , pending and rejected . When I use list_filter in Django admin, the filter is by default set to 'All' but I want to set it to pending by default.
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Why does += behave unexpectedly on lists?
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The general answer is that += tries to call the __iadd__ special method, and if that isn't available it tries to use __add__ instead. So the issue is with the difference between these special methods.
The __iadd__ special method is for an in-place addition, that i...
How does Python's super() work with multiple inheritance?
...ave trouble
understanding the super() function (new style classes) especially when it comes to multiple inheritance.
16 A...
How does JavaScript .prototype work?
...ing languages but I've written my fair share of JavaScript code. I never really got my head around this prototype-based programming, does any one know how this works?
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How do I get the path of the current executed file in Python?
...ike a newbie question, but it is not. Some common approaches don't work in all cases:
13 Answers
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PostgreSQL Connection URL
...er=host;Port=5432;User Id=username;Password=secret;Database=databasename;
PHP documentation us here, the general connection string is
host=hostname port=5432 dbname=databasename user=username password=secret
If you're using something else, you'll have to tell us.
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Why not use tables for layout in HTML? [closed]
...s in them.
It's good to separate content from layout
But this is a fallacious argument; Cliché Thinking.
It's not fallacious at all because HTML was designed intentionally. Misuse of an element might not be completely out of question (after all, new idioms have developed in other languages...
How can I recover the return value of a function passed to multiprocessing.Process?
... need to know which process is returning which value. If that what you actually need to know about the process, or do you need to correlate between your list of inputs and the list of outputs? In that case, I would recommend using multiprocessing.Pool.map to process your list of work items.
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MaterialDialog 对话框增强扩展 · App Inventor 2 中文网
...中的分钟。
OnItemSelected 列表项选择时(dialogId,item,index)
当用户在列表对话框中选择某一项时触发。
dialogId：列表对话框的唯一标识符。
item：被选中项的文本内容。
index：被选中项在列表中的索引（从 0 ...