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Unique fields that allow nulls in Django
...bar. The bar field should be unique, but allow nulls in it, meaning I want to allow more than one record if bar field is null , but if it is not null the values must be unique.
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How can I view live MySQL queries?
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You can run the MySQL command SHOW FULL PROCESSLIST; to see what queries are being processed at any given time, but that probably won't achieve what you're hoping for.
The best method to get a history without having to modify every application using the server is probably thro...
Split a module across several files
I want to have a module with multiple structs in it, each in its own file. Using a Math module as an example:
5 Answers...
When is it appropriate to use UDP instead of TCP? [closed]
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This is one of my favorite questions. UDP is so misunderstood.
In situations where you really want to get a simple answer to another server quickly, UDP works best. In general, you want the answer to be in one response packet, and you are prepared to implement your own protocol fo...
Focusable EditText inside ListView
...r, or added as a header view) that contains an EditText widget and a Button . All I want to do is be able to use the jogball/arrows, to navigate the selector to individual items like normal, but when I get to a particular row -- even if I have to explicitly identify the row -- that has a focusab...
Why is IoC / DI not common in Python?
...plications, but beside of Zope (which I've heard should be really horrible to code) IoC doesn't seem to be very common in the Python world. (Please name some examples if you think that I'm wrong).
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iPhone Simulator - Simulate a slow connection?
Is there a way to slow down the internet connection to the iPhone Simulator, so as to mimic how the App might react when you are in a slow spot on the cellular network?
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Animate change of view controllers without using navigation controller stack, subviews or modal cont
NavigationControllers have ViewController stacks to manage, and limited animation transitions.
6 Answers
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The relationship could not be changed because one or more of the foreign-key properties is non-nulla
...hen I GetById() on an entity and then set the collection of child entities to my new list which comes from the MVC view.
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Single huge .css file vs. multiple smaller specific .css files? [closed]
Is there any advantage to having a single monster .css file that contains style elements that will be used on almost every page?
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