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Django - how to create a file and save it to a model's FileField?

Here's my model. What I want to do is generate a new file and overwrite the existing one whenever a model instance is saved: ...
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What does -save-dev mean in npm install grunt --save-dev

I've just started using Grunt.js . It is pretty hard to set up and I am at the point of creating a package.json file. 6 ...
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How do you keep user.config settings across different assembly versions in .net?

Basically the problem is that each time the assembly version changes (i.e. the user installs a new version of the application) all their settings are reset the the defaults (or more accurately a new user.config file is created in a folder with a different version number as the name) ...
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What is context in _.each(list, iterator, [context])?

I am new to underscore.js. What is the purpose of [context] in _.each() ? How should it be used? 5 Answers ...
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Android AsyncTask threads limits?

I am developing an application where I need to update some info every time user logs in to the system, I also use database in the phone. For all those operations (updates, retrieving data from db and etc.) I use async tasks. As up till now I didn't see why I shouldn't use them, but recently I experi...
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Entity framework linq query Include() multiple children entities

This may be a really elementry question but whats a nice way to include multiple children entities when writing a query that spans THREE levels (or more)? ...
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Can you call ko.applyBindings to bind a partial view?

I'm using KnockoutJS and have a main view and view model. I want a dialog (the jQuery UI one) to popup with another view which a separate child view model to be bound to. ...
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What is the difference between square brackets and parentheses in a regex?

Here is a regular expression I created to use in JavaScript: 3 Answers 3 ...
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SQL update trigger only when column is modified

By looking at other examples I've come up with the following but it doesn't seem to work as I would like: I want it to only update the modified information if the QtyToRepair value has been updated... but it doesn't do that. ...
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Fragment or Support Fragment?

I am developing an app that supports Android >= 4.0. It uses fragments from the android.app package. As I am facing problems with the older fragment implementation in 4.0, like this one , that are already fixed in the support library, I am considering switching back to the fragment implementation...