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How to set a Django model field's default value to a function call / callable (e.g., a date relative
...; it is invoking a function to create a field in the class.
PRE Django 1.7
Django lets you pass a callable as the default, and it will invoke it each time, just as you want:
from datetime import datetime, timedelta
class MyModel(models.Model):
# default to 1 day from now
my_date = models.Dat...
iOS: Multi-line UILabel in Auto Layout
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edited Jul 1 '19 at 11:07
Bruno Bieri
7,00088 gold badges5050 silver badges7373 bronze badges
answered...
How to word wrap text in HTML?
...#search=word-wrap
– Jon Hadley
Jan 27 '11 at 9:10
33
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Convert line-endings for whole directory tree (Git)
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274
dos2unix does that for you. Fairly straight forward process.
dos2unix filename
Thanks to tool...
Recent file history in Vim?
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edited Apr 23 '17 at 10:46
icc97
7,85166 gold badges5151 silver badges6969 bronze badges
answe...
CharSequence VS String in Java?
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edited Sep 25 '11 at 16:07
vahidg
3,89522 gold badges1919 silver badges3030 bronze badges
answered Jun ...
How does Google's Page Speed lossless image compression work?
...The optipng command line tool does that too if you provide -o 2 through -o 7)
For JPEG files, they use jpeglib with the following options:
JpegCompressionOptions()
: progressive(false), retain_color_profile(false),
retain_exif_data(false), lossy(false) {}
Similarly, WEBP is comp...
How to handle button clicks using the XML onClick within Fragments
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175
You could just do this:
Activity:
Fragment someFragment;
//...onCreate etc instantiating...
How to check whether an array is empty using PHP?
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799
If you just need to check if there are ANY elements in the array
if (empty($playerlist)) {
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How do you run NUnit tests from Jenkins?
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edited Jul 7 '14 at 9:20
answered Apr 18 '12 at 7:58
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