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Checking for empty queryset in Django
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AdamAdam
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GitHub: make fork an “own project”
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answered Dec 31 '14 at 8:38
Oleh PrypinOleh Prypin
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Header files for x86 SIMD intrinsics
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175
These days you should normally just include <immintrin.h>. It includes everything.
GCC...
When a 'blur' event occurs, how can I find out which element focus went *to*?
...target ? target.id||target.tagName||target : '';
}
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<button id="btn1" onblur="showBlur(event)">Button 1</button>
<button id="btn2" onblur="showBlur(event)">Button 2</button>
<button id="btn3" onblur="showBlur(event)">Button 3</button>
<input id="focused" t...
Mocking Extension Methods with Moq
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edited Jun 20 at 9:12
Community♦
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answered Aug 23 '11 at 6:20
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Why is git prompting me for a post-pull merge commit message?
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160
In git 1.7.10, the git developers decided merge commits could be made too easily. As explained...
“for” vs “each” in Ruby
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316
This is the only difference:
each:
irb> [1,2,3].each { |x| }
=> [1, 2, 3]
irb> x
N...
How to do a https request with bad certificate?
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edited Feb 14 '18 at 15:03
Matthias Rosenstock
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answere...
What's the meaning of 'origin' in 'git push origin master'
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edited Mar 11 '11 at 16:39
answered Mar 11 '11 at 8:49
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How to 'bulk update' with Django?
....models import F
Entry.objects.all().update(n_pingbacks=F('n_pingbacks') + 1)
See the documentation.
However, note that:
This won't use ModelClass.save method (so if you have some logic inside it won't be triggered).
No django signals will be emitted.
You can't perform an .update() on a slice...