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Group by & count function in sqlalchemy
...ssion.query(Table.column, func.count(Table.column)).group_by(Table.column).all()
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C++ project organisation (with gtest, cmake and doxygen)
...rs are the
basis for users to interact with what you offer and must be
installed. This means they have to be in a subdirectory (no-one wants
lots of headers ending up in top-level /usr/include/) and your
headers must be able to include themselves with such a setup.
└── prj
├── inclu...
How to select a single field for all documents in a MongoDB collection?
... include several fields. In the following operation, find() method returns all documents that match the query. In the result set, only the item and qty fields and, by default, the _id field return in the matching documents.
db.inventory.find( { type: 'food' }, { item: 1, qty: 1 } )
In this example ...
Logging best practices [closed]
...pensive calls to ToString() on parameter values until after the system has confirmed message will actually be logged.
The Trace.CorrelationManager allows you to correlate log statements about the same logical operation (see below).
VisualBasic.Logging.FileLogTraceListener is good for writing t...
git add . vs git commit -a
...valent to git add -u . whereas git commit -a stages and commits changes to all tracked files.
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Breakpoints are crossed out, how can I make them valid?
...a menu entry you have discovered for yourself that toggles the skipping of all breakpoints. There is also an icon for this in the "Breakpoints" View, and there may be a hot-key defined as well, all of which you may have triggered by accident.
Take a look at the Run -> Skip All Breakpoints.
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Can I get git to tell me all the files one user has modified?
I would like git to give me a list of all the files modified by one user, across all commits.
4 Answers
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How to ignore all hidden directories/files recursively in a git repository?
I'd like to have Git ignore all hidden files and directories.
i.e.
3 Answers
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Relationship between SciPy and NumPy
SciPy appears to provide most (but not all [1]) of NumPy's functions in its own namespace. In other words, if there's a function named numpy.foo , there's almost certainly a scipy.foo . Most of the time, the two appear to be exactly the same, oftentimes even pointing to the same function object.
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Default filter in Django admin
How can I change the default filter choice from 'ALL'? I have a field named as status which has three values: activate , pending and rejected . When I use list_filter in Django admin, the filter is by default set to 'All' but I want to set it to pending by default.
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