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How to query as GROUP BY in django?
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An easy solution, but not the proper way is to use raw SQL:
results = Members.objects.raw('SELECT * FROM myapp_members GROUP BY designation')
Another solution is to use the group_by property:
query = Members.objects.all().query
query.group_by = ['designation']
results = Q...
How to replace a hash key with another key
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How to use ? : if statements with Razor and inline code blocks
...pectively generate the source  . Now there is a function Html.Raw(" ") which is supposed to let you write source code, except in this constellation it throws a compiler error:
Compiler Error Message: CS0173: Type of conditional expression cannot
be determined because ther...
How do I make python wait for a pressed key?
...thon 3 use input():
input("Press Enter to continue...")
In Python 2 use raw_input():
raw_input("Press Enter to continue...")
This only waits for the user to press enter though.
One might want to use msvcrt ((Windows/DOS only) The msvcrt module gives you access to a number of functions in...
How to read a single char from the console in Java (as the user types it)?
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What you want to do is put the console into "raw" mode (line editing bypassed and no enter key required) as opposed to "cooked" mode (line editing with enter key required.) On UNIX systems, the 'stty' command can change modes.
Now, with respect to Java... see Non bloc...
How can I list all tags in my Git repository by the date they were created?
...ng creatordate works with tags:
git for-each-ref --format='%(*creatordate:raw)%(creatordate:raw) %(refname) %(*objectname) %(objectname)' refs/tags | \
sort -n | awk '{ print $4, $3; }'
Or:
git tag --sort=-creatordate
As I detail in "How to sort git tags by version string order of form rc-...
How to write a test which expects an Error to be thrown in Jasmine?
...Try using an anonymous function instead:
expect( function(){ parser.parse(raw); } ).toThrow(new Error("Parsing is not possible"));
you should be passing a function into the expect(...) call. Your incorrect code:
// incorrect:
expect(parser.parse(raw)).toThrow(new Error("Parsing is not possible")...
What are advantages of Artificial Neural Networks over Support Vector Machines? [closed]
...ence of sequences with
lim sup { |f(x) - U(x,a(k) ) | : x } =0
and you draw examples and tests (x,y) with a distribution D on IxI.
For a prescribed support, what you do is to find the best a such that
sum { ( y(l) - U(x(l),a) )^{2} | : 1<=l<=N } is minimal
Let this a=aa which is a rand...
How to use querySelectorAll only for elements that have a specific attribute set?
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Conditional HTML Attributes using Razor MVC3
... you use an HTML inspector, often you are actually seeing the DOM, not the raw HTML. Browsers parse HTML into the DOM, and the after-parsing DOM representation already has some niceties applied. In this case the Browser sees there aren't quotes around the attribute value, adds them:
style="&q...