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Calling a Method From a String With the Method's Name in Ruby
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edited Nov 21 '18 at 21:35
mu is too short
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Can I add comments to a pip requirements file?
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Sure, you can, just use #
pip docs:
A line that begins with # is treated as a comment and ...
Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?
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170
pandas.isnull() (also pd.isna(), in newer versions) checks for missing values in both numeric ...
Get screen width and height in Android
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Using this code, you can get the runtime display's width & height:
DisplayMetrics displa...
HAProxy redirecting http to https (ssl)
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Facebook Like Button - how to disable Comment pop up?
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21 Answers
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Redirect using AngularJS
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With an example of the not-working code, it will be easy to answer this question, but with thi...
What is PEP8's E128: continuation line under-indented for visual indent?
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answered Mar 15 '13 at 15:11
Gareth LattyGareth Latty
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How to define two fields “unique” as couple
... exactly what you want.
For example:
class MyModel(models.Model):
field1 = models.CharField(max_length=50)
field2 = models.CharField(max_length=50)
class Meta:
unique_together = ('field1', 'field2',)
And in your case:
class Volume(models.Model):
id = models.AutoField(primary_key=Tr...