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Django: Get list of model fields?
I've defined a User class which (ultimately) inherits from models.Model . I want to get a list of all the fields defined for this model. For example, phone_number = CharField(max_length=20) . Basically, I want to retrieve anything that inherits from the Field class.
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PHP - how to best determine if the current invocation is from CLI or web server?
I need to determine whether the current invocation of PHP is from the command line (CLI) or from the web server (in my case, Apache with mod_php).
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Git copy file preserving history [duplicate]
...lder No. Like git diff -M this is just smart analysis of the tree objects. From the git blame man page: "The origin of lines is automatically followed across whole-file renames (currently there is no option to turn the rename-following off)."
– CliffordVienna
A...
How do you use String.substringWithRange? (or, how do Ranges work in Swift?)
...] // "Strin"
str.substring(to: startIndex) // "My "
str.substring(from: startIndex) // "String"
Swift 4
substring(to:) and substring(from:) are deprecated in Swift 4.
String(str[..<startIndex]) // "My "
String(str[startIndex...]) // "String"
String(str[startIndex...endIndex]) ...
What is the (best) way to manage permissions for Docker shared volumes?
...pproach, all access to the volume data is via containers that use -volumes-from the data container, so the host uid/gid doesn't matter.
For example, one use case given in the documentation is backing up a data volume. To do this another container is used to do the backup via tar, and it too uses -v...
Making heatmap from pandas DataFrame
I have a dataframe generated from Python's Pandas package. How can I generate heatmap using DataFrame from pandas package.
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Understand convertRect:toView:, convertRect:FromView:, convertPoint:toView: and convertPoint:fromVie
...our example above is pointless (no pun intended) since it converts a point from a view to itself, so nothing will happen. You would more commonly find out where some point of a view was in relation to its superview - to test if a view was moving off the screen, for example:
CGPoint originInSupervie...
Reference: What is variable scope, which variables are accessible from where and what are “undefined
What is "variable scope" in PHP? Are variables from one .php file accessible in another? Why do I sometimes get "undefined variable" errors?
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Static methods - How to call a method from another method?
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How do I have to do in Python for calling an static method from another static method of the same class?
class Test() :
@staticmethod
def static_method_to_call()
pass
@staticmethod
def another_static_method() :
Test.static_method_to_call()
@cla...
How do I install an R package from source?
...o try it. However, the first step is to installed a package called RJSONIO from source.
6 Answers
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