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Use logging print the output of pprint
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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When saving, how can you check if a field has changed?
...oblem if you have several application servers working against the same database as it only tracks changes in memory
– Jens Alm
Sep 2 '12 at 7:36
13
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Select between two dates with Django
... Is the "created_at" an arbitrary field in a model or is this the databases actual log of when the record was created?
– Bigbob556677
Mar 2 '18 at 14:22
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ObjectiveC Parse Integer from String
...truncated).
I've made a macro that will convert input text to an NSNumber based on a locale argument which can be nil (if nil it uses device current locale).
#define stringToNumber(__string, __nullable_locale) (\
(^NSNumber *(void){\
NSLocale *__locale = __nullable_locale;\
if (!__locale) {\
__loca...
How to calculate age (in years) based on Date of Birth and getDate()
...ultiplying by 100? This works for me as I'm trying to replicate in the database what exists in our code library - but I couldn't explain your function. This might be a stupid question :)
– Jen
Sep 25 '13 at 5:30
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What is a proper naming convention for MySQL FKs?
...able somewhere with no idea which table it belongs to. The older your code base is and the more people have worked on it, the more likely this becomes.
– CJ Dennis
Apr 26 '18 at 8:15
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Reverse colormap in matplotlib
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As a LinearSegmentedColormaps is based on a dictionary of red, green and blue, it's necessary to reverse each item:
import matplotlib.pyplot as plt
import matplotlib as mpl
def reverse_colourmap(cmap, name = 'my_cmap_r'):
"""
In:
cmap, name
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Get url without querystring
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BrandonBrandon
64.2k2929 gold badges186186 silver badges217217 bronze badges
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Can't use Swift classes inside Objective-C
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I spent about 4 hours trying to enable Swift in my Xcode Objective-C based project. My myproject-Swift.h file was created successfully, but my Xcode didn't see my Swift-classes. So, I decided to create a new Xcode Objc-based project and finally, I found the right answer! Hope this post will he...
Why do some functions have underscores “__” before and after the function name?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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