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How do I make many-to-many field optional in Django?

When you have a many-to-many relationship ( related_name , not through ) and you are trying to use the admin interface you are required to enter one of the relationships even though it does not have to exist for you to create the first entry. ...
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split string in to 2 based on last occurrence of a separator

I would like to know if there is any built in function in python to break the string in to 2 parts, based on the last occurrence of a separator. ...
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How do I know the current width of system scrollbar?

As you know, one can customize the width of the scrollbar width in Display Properties -> Appearance -> Advanced -> Item: ScrollBar. The default value is 17. However, I can't assume this is always the case, is it possible for me to retrieve this value? ...
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How do you skip a unit test in Django?

How do forcibly skip a unit test in Django? 2 Answers 2 ...
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How to add new line into txt file

I'd like to add new line with text to my date.txt file, but instead of adding it into existing date.txt, app is creating new date.txt file.. ...
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@Html.BeginForm Displaying “System.Web.Mvc.Html.MvcForm” on Page

I have a razor view that I added a delete button to inside of an 'if' statement and when the view is rendered in the browser it is displaying "System.Web.Mvc.Html.MvcForm" next to the delete button. ...
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GMSGroundOverlay animating - should I be using a CATiledLayer?

... the Google Maps for iOS SDK latest version 1.2.1.2944 to animate a GMSGroundOverlay . The user has control over the image sequence, so using an animated UIImage isn't a possibility sadly, so i'm loading in the UIImage on the fly. The GMSGroundOverlay.icon is set to the UIImage that is bein...
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MYSQL Dump only certain rows

I am trying to do a mysql dump of a few rows in my database. I can then use the dump to upload those few rows into another database. The code I have is working, but it dumps everything. How can I get mysqldump to only dump certain rows of a table? ...
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How do I turn off “Automatically Switch to Debug Perspective” mode in eclipse?

Is there a way to turn off this mode? I must have clicked it by accident, and now it's getting really annoying. 4 Answer...
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Convert from java.util.date to JodaTime

I want to convert a java.util.Date to JodaTime so as to carry out subtractions between dates. Is there a good concise way to convert from Date to JodaTime ? ...