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How does Django's Meta class work?
I am using Django which allows people to add extra parameters to a class by using class Meta .
6 Answers
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Need to understand the usage of SemaphoreSlim
...n (i.e., no FIFO priorities).
When a teacher is around, she "releases" an extra row of 5 footprints on the other side of the corridor such that 5 more kids can play in the room at the same time.
It also has the same "pitfalls" of SemaphoreSlim...
If a kid finishes playing and leaves the room with...
How do I enable TODO/FIXME/XXX task tags in Eclipse?
...uld be enough to have them appear in the Task list (or the Markers view).
Extra note: reinstalling Eclipse won't change anything most of the time if you work on the same workspace. Most settings used by Eclipse are stored in the .metadata folder, in your workspace folder.
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Styling Google Maps InfoWindow
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Props for including some extra code that I was looking for how to use. Thanks
– MetalPhoenix
Nov 18 '14 at 16:41
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How to use ScrollView in Android?
...on one of the views in the LinearLayout makes that view expand to fill any extra space.
Here is the XML
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match...
Optimistic vs. Pessimistic locking
...essential that the data is accurately read, with no un-shown changes - the extra locking overhead is worth it.
Oh, and Microsoft SQL server defaults to page locking - basically the row you're reading and a few either side. Row locking is more accurate but much slower. It's often worth setting your...
When to use a “has_many :through” relation in Rails?
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You should use has_many :through if you need validations, callbacks, or extra attributes on the join model.
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App Inventor 2 中的响应式设计 · App Inventor 2 中文网
...een width as 600 and the button width as 300. As a result, you have the extra resolution to work with in your app design for the tablet.
It’s also possible to take mixed approaches. These can be more confusing and less useful, and we recommend that you use them only in special circumstances. ...
Why don't structs support inheritance?
...Basically, they're supposed to hold simple data and therefore do not have "extra features" such as inheritance. It would probably be technically possible for them to support some limited kind of inheritance (not polymorphism, due to them being on the stack), but I believe it is also a design choice ...
How does git store files?
... gc --aggressive uses value 250, which makes it run very slow, but provide extra compression for history data.
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