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Setting mime type for excel document

... I believe the standard MIME type for Excel files is application/vnd.ms-excel. Regarding the name of the document, you should set the following header in the response: header('Content-Disposition: attachment; filename="name_of_excel_file.x...
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Django filter queryset __in for *every* item in list

... Summary: One option is, as suggested by jpic and sgallen in the comments, to add .filter() for each category. Each additional filter adds more joins, which should not be a problem for small set of categories. There is the aggregation approach. This query would be short...
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How do I find out what version of WordPress is running?

...ed some code to delete this, you should be able to view source on the site and look for this meta tag: <meta name="generator" content="WordPress 2.7.1" /> That will give you the version. share | ...
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Objective-C categories in static library

...pp project as direct dependency (target -> general -> direct dependencies) and all works OK, but categories. A category defined in static library is not working in app. ...
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Defining a variable with or without export

...l process. If you want a process to make use of this variable, use export, and run the process from that shell. name=value means the variable scope is restricted to the shell, and is not available to any other process. You would use this for (say) loop variables, temporary variables etc. It's im...
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Difference between global and device functions

Can anyone describe the differences between __global__ and __device__ ? 9 Answers ...
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Writing files in Node.js

... I've tested this script using Node, and I tried changing the file path to "/home/", but I got the following error: { [Error: EACCES, open '/home/test.txt'] errno: 3, code: 'EACCES', path: '/home/test.txt' } How can I modify this script so that it will work out...
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What is the difference between `new Object()` and object literal notation?

...done something unusual), other than that your second one creates an object and adds a property to it. But literal notation takes less space in the source code. It's clearly recognizable as to what is happening, so using new Object(), you are really just typing more and (in theory, if not optimized ...
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ipython reads wrong python version

I've been having trouble with Python, iPython and the libraries. The following points show the chain of the problematics. I'm running Python 2.7 on Mac Lion. ...
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How to create a MySQL hierarchical recursive query

... (select @pv := '19') initialisation where find_in_set(parent_id, @pv) and length(@pv := concat(@pv, ',', id)) Here is a fiddle. Here, the value specified in @pv := '19' should be set to the id of the parent you want to select all the descendants of. This will work also if a parent has m...