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Django: Set foreign key using integer?
...articularly useful aspect of Django, one that everyone should know and use from time to time when appropriate.
caveat:
@RuneKaagaard points out that employee.type is not accurate afterwards in recent Django versions, even after calling employee.save() (it holds its old value). Using it would of co...
How to create a file in memory for user to download, but not through server?
...anchor to body.
document.body.appendChild(a);
a.click();
// Remove anchor from body
document.body.removeChild(a);
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What is the syntax for “not equal” in SQLite?
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From the official documentation:
The non-equals operator can be either != or <>
So your code becomes:
Cursor findNormalItems = db.query("items", columns, "type != ?",
new String...
Android check internet connection [duplicate]
... }
}
return false;
}
Please use this in a separate thread from the main thread as it makes a network call and will throw NetwrokOnMainThreadException if not followed.
And also do not put this method inside onCreate or any other method. Put it inside a class and access it.
...
JavaScript: How to pass object by value?
...ow the o property.
Of course, any properties added to o will be available from obj if they're not shadowed, and all objects that have o in the prototype chain will see the same updates to o.
Also, if obj has a property that references another object, like an Array, you'll need to be sure to shadow...
Apply pandas function to column to create multiple new columns?
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This is the best answer! Often you have a situation where from a single dataframe column or series you have to create a dataframe of multiple new columns based on a transformation on the original column/series. The transformation function often returns k-tuples, and these k-tuples m...
jquery, find next element by class
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And what if wanted to get an attribute from that HTMLObject returned? Like an $(obj).closest('tr').nextAll('.class')[0].attr('data-attribute');
– Dennis Braga
Sep 2 '14 at 16:37
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How do I convert a string to a double in Python?
...perator might be more in line with what you are looking for:
>>> from decimal import Decimal
>>> x = "234243.434"
>>> print Decimal(x)
234243.434
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Should a RESTful 'PUT' operation return something
...ur clients to do a GET immediately after a PUT, then don't return anything from PUT.
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argparse module How to add option without any argument?
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As @Felix Kling suggested use action='store_true':
>>> from argparse import ArgumentParser
>>> p = ArgumentParser()
>>> _ = p.add_argument('-f', '--foo', action='store_true')
>>> args = p.parse_args()
>>> args.foo
False
>>> args = p.pa...