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Django ModelForm: What is save(commit=False) used for?
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As a "real example", consider a user model where the email address and the username are always the same, and then you could overwrite your ModelForm's save method like:
class UserForm(forms.ModelForm):
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def save(self):
# Sets username to email before saving
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What are forward declarations in C++?
...answered Jan 21 '11 at 10:18
René NyffeneggerRené Nyffenegger
34.2k2424 gold badges135135 silver badges219219 bronze badges
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Convert a RGB Color Value to a Hexadecimal String
...teger.valueOf(color.getRGB() & 0x00FFFFFF));
– Stéphane Millien
Feb 12 at 18:21
This results in class java.util.I...
How to convert An NSInteger to an int?
...2-bit platforms, and a long on 64-bit platforms.
– Frédéric Adda
Mar 11 '14 at 22:16
5
I get a ...
What is the difference between a thread and a fiber?
...ltiple threads to execute fibers in parallel?
– Baradé
Apr 7 '15 at 9:57
2
@Jason, When you stat...
“tag already exists in the remote" error after recreating the git tag
...nswered Aug 26 '16 at 13:57
André TzermiasAndré Tzermias
68266 silver badges1313 bronze badges
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Graph visualization library in JavaScript
...sters, for a fixed, one-time cost? Of course not.
– Félix Saparelli
Jun 3 '15 at 23:22
2
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多媒体组件 · App Inventor 2 中文网
...组件需要 Android 4.4 或更高版本、iOS 11 或更高版本。要求AI伴侣v2.68及以上。
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Using OR in SQLAlchemy
...red Oct 30 '11 at 0:22
Bastien LéonardBastien Léonard
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Determining 32 vs 64 bit in C++
..., but was curious to know if people could think of cases where this might fail or if there is a better way to do this. Please note we are trying to do this in a cross-platform, multiple compiler environment.
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