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

... generate a new file and overwrite the existing one whenever a model instance is saved: 3 Answers ...
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What does -save-dev mean in npm install grunt --save-dev

...ted using Grunt.js . It is pretty hard to set up and I am at the point of creating a package.json file. 6 Answers ...
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HttpURLConnection timeout settings

I want to return false if the URL takes more then 5 seconds to connect - how is this possible using Java? Here is the code I am using to check if the URL is valid ...
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ASP.NET MVC: Is Controller created for every request?

Very simple question: Are controllers in ASP.NET created for every HTTP request, or are they created at application startup and reused throughout requests? ...
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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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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?

...p 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 from the support lib...
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Finding ALL duplicate rows, including “elements with smaller subscripts”

R's duplicated returns a vector showing whether each element of a vector or data frame is a duplicate of an element with a smaller subscript. So if rows 3, 4, and 5 of a 5-row data frame are the same, duplicated will give me the vector ...
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How to create a new database using SQLAlchemy?

Using SQLAlchemy, an Engine object is created like this: 4 Answers 4 ...
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When to use pip requirements file versus install_requires in setup.py?

I'm using pip with virtualenv to package and install some Python libraries. 4 Answers ...