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validation custom message for rails 3
Rails has introduced new way to validate attributes inside model.
When I use
4 Answers
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Python mock multiple return values
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You can assign an iterable to side_effect, and the mock will return the next value in the sequence each time it is called:
>>> from unittest.mock import Mock
>>> m = Mock()
>>> m.side_effect = ['foo', 'bar', 'baz']
>>> m...
How do I reference a specific issue comment on github?
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Also note that this works identically for comments on commits (not just comments on issues).
– Jamie S
Feb 3 '18 at 1:51
add a...
How do I create a datetime in Python from milliseconds?
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How to delete a stash created with git stash create?
...: stash@{n} which n nominates which stash to drop. You can't pass a commit id to git stash drop.
git stash drop # drop top hash, stash@{0}
git stash drop stash@{n} # drop specific stash - see git stash list
Dropping a stash will change the stash@{n} designations of all stashes further...
python tuple to dict
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Name of this month (Date.today.month as name)
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What is the purpose of flush() in Java streams?
...d 'flush' should not be in its definition. Recursive definitions are a bad idea for understanding new things. I am aware that you did not write the definition.
– Jonathan Komar
May 23 '19 at 13:13
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What is Prism for WPF?
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Prism is the Microsoft Patterns and Practices Team official guidance for building "composite applications" in WPF and Silverlight.
Its intended to provide guidance on the best practices for building large scale applications which are flexible in terms of development and maintainability...
Convert Dictionary to semicolon separated string in c#
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