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Difference between Django's annotate and aggregate methods?
...> Book.objects.aggregate(average_price=Avg('price'))
{'average_price': 34.35}
Returns a dictionary containing the average price of all books in the queryset.
Annotation
>>> q = Book.objects.annotate(num_authors=Count('authors'))
>>> q[0].num_authors
2
>>> q[1].num_a...
Sharing src/test classes between modules in a multi-module maven project
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Your Consumer project depends upon your Data project, therefore we are happy that Data must be b...
Example for sync.WaitGroup correct?
... correct? It gives the expected result, but I am unsure about the wg.Add(4) and the position of wg.Done() . Does it make sense to add the four goroutines at once with wg.Add() ?
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How do I get AWS_ACCESS_KEY_ID for Amazon?
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New Alexandria
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Amit TalmorAmit Talmo...
Using comparison operators in Scala's pattern matching system
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Convert data.frame column format from character to factor
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Tyler RinkerTyler Rinker
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Django Admin - Disable the 'Add' action for a specific model
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It is easy, just overload has_add_permission method in your Admin class like so:
class MyAdmin...
How to push new branch without history
...ohn SzakmeisterJohn Szakmeister
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How to force vim to syntax-highlight a file as html?
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114
You can also put this into your .vimrc:
au BufReadPost *.ezt set syntax=html
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Difference between Select and ConvertAll in C#
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