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Does SQLAlchemy have an equivalent of Django's get_or_create?
...could generalize it ofcourse:
def get_or_create(session, model, defaults=None, **kwargs):
instance = session.query(model).filter_by(**kwargs).first()
if instance:
return instance, False
else:
params = dict((k, v) for k, v in kwargs.iteritems() if not isinstance(v, Clause...
What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]
...general_ci is a very simple — and on Unicode, very broken — collation, one that gives incorrect results on general Unicode text. What it does is:
converts to Unicode normalization form D for canonical decomposition
removes any combining characters
converts to upper case
This does not wo...
event.preventDefault() vs. return false
...er event handlers from executing after a certain event is fired, I can use one of two techniques. I'll use jQuery in the examples, but this applies to plain-JS as well:
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Regular expression to match standard 10 digit phone number
I want to write a regular expression for a standard US type phone number that supports the following formats:
20 Answers
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Text editor to open big (giant, huge, large) text files [closed]
...or tail." It's really a log file analyzer, not a large file viewer, and in one test it required 10 seconds and 700 MB of RAM to load a 250 MB file. But its killer features are the columnizer (parse logs that are in CSV, JSONL, etc. and display in a spreadsheet format) and the highlighter (show lines...
How can I stage and commit all files, including newly added files, using a single command?
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one could put that in it's own .sh or .bat file and just use it as one command. The message might be param1
– BlueWizard
Sep 29 '16 at 6:06
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Why is “throws Exception” necessary when calling a function?
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In Java, as you may know, exceptions can be categorized into two: One that needs the throws clause or must be handled if you don't specify one and another one that doesn't. Now, see the following figure:
In Java, you can throw anything that extends the Throwable class. However, you don't...
How do I find the next commit in git? (child/children of ref)
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To list all the commits, starting from the current one, and then its child, and so on - basically standard git log, but going the other way in time, use something like
git log --reverse --ancestry-path 894e8b4e93d8f3^..master
where 894e8b4e93d8f3 is the first commit you wa...
How to convert a normal Git repository to a bare one?
How can I convert a 'normal' Git repository to a bare one?
17 Answers
17
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How to combine date from one field with time from another field - MS SQL Server
In an extract I am dealing with, I have 2 datetime columns. One column stores the dates and another the times as shown.
1...