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How to create an object for a Django model with a many to many field?
... m2m relations from unsaved objects. If you have the pks, try this:
sample_object = Sample()
sample_object.save()
sample_object.users.add(1,2)
Update: After reading the saverio's answer, I decided to investigate the issue a bit more in depth. Here are my findings.
This was my original suggestion...
What is Prefix.pch file in Xcode?
...ngs (Command-Option-E, build tab) and uncheck Precompile Prefix Header (GCC_PRECOMPILE_PREFIX_HEADER). You can also remove the value of the Prefix Header setting if you wish.
Also note that,
Don't put macros in a.pch file! A .pch file is, by definition, a project specific precompiled header. It re...
iOS 7 style Blur view
...[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[_toolbar]|"
options:0
metrics:0
...
Right way to initialize an OrderedDict using its constructor such that it retains order of initial d
...
See __hash__. Specifically about the str type.
– metatoaster
Aug 25 '14 at 6:43
...
How to export data as CSV format from SQL Server using sqlcmd?
...low commas inside the data? Do we have to surround every column with '""'+ ___ +'""'?
– Ahmed
Apr 1 '15 at 0:41
2
...
Where is Erlang used and why? [closed]
...
From Programming Erlang:
alt text http://bks8.books.google.com/books?id=Qr_WuvfTSpEC&printsec=frontcover&img=1&zoom=5&sig=ACfU3U2F4YY4KqO0vCuZ4WEZjdE2yFFvvg
Many companies are using Erlang in their production systems:
• Amazon uses Erlang to implement SimpleDB, providing database ...
What does %w(array) mean?
... #Same as :'some words'
%s[other words] #Same as :'other words'
%s_last example_ #Same as :'last example'
Since Ruby 2.0.0 you also have:
%i( a b c ) # => [ :a, :b, :c ]
%i[ a b c ] # => [ :a, :b, :c ]
%i_ a b c _ # => [ :a, :b, :c ]
# etc...
...
Batch file to delete files older than N days
... I used this syntax on Win Server 2008: forfiles /P "C:\Mysql_backup" /S /M *.sql /D -30 /C "cmd /c del @PATH"
– jman
Apr 18 '11 at 8:42
...
Get all attributes of an element using jQuery
...core
Also works for lodash.
function getAttributes ( node ) {
return _.reduce( node.attributes, function ( attrs, attribute ) {
attrs[attribute.name] = attribute.value;
return attrs;
}, {} );
}
lodash
Is even more concise than the Underscore version, but only works for l...
Natural Sort Order in C#
...omComparer<T> : IComparer<T> {
private Comparison<T> _comparison;
public CustomComparer(Comparison<T> comparison) {
_comparison = comparison;
}
public int Compare(T x, T y) {
return _comparison(x, y);
}
}
Example:
string[] files = Dire...