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Checking for empty queryset in Django

... This seems to be preferred in the documentation too, for instance: docs.djangoproject.com/en/1.8/topics/http/shortcuts/#id7 – Wtower May 22 '15 at 9:02 ...
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Why are C# interface methods not declared abstract or virtual?

... is marked virtual and abstract. (Note that Java allows interface members to be declared public abstract). For the implementing class, there are some options: Non-overridable: In C# the class doesn't declare the method as virtual. That means that it cannot be overridden in a derived class (only h...
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Determining the size of an Android view at runtime

I am trying to apply an animation to a view in my Android app after my activity is created. To do this, I need to determine the current size of the view, and then set up an animation to scale from the current size to the new size. This part must be done at runtime, since the view scales to differe...
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how to configure apache server to talk to HTTPS backend server?

... server tells you exactly what you need : [Hint: SSLProxyEngine] You need to add that directive to your VirtualHost before the Proxy directives : SSLProxyEngine on ProxyPass /primary/store https://localhost:9763/store/ ProxyPassReverse /primary/store https://localhost:9763/store/ See the doc for...
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A simple command line to download a remote maven2 artifact to the local repository?

...tribute using maven 2. The typical user of this library doesn't use maven to build their applications, but is likely somewhat familiar with maven and probably has it installed. ...
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Convert NaN to 0 in javascript

Is there a way to convert NaN values to 0 without an if statement: 11 Answers 11 ...
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How can I maximize the editor pane in IntelliJ IDEA?

In Eclipse, I can type Ctrl + M or click the maximize icon in the editor pane to make the editor pane take up the entire Eclipse window, and then again to restore the pane back to its previous size exposing the other panes. ...
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What is a difference between

... The first says that it's "some type which is an ancestor of E"; the second says that it's "some type which is a subclass of E". (In both cases E itself is okay.) So the constructor uses the ? extends E form so it guarantees that when it fetches values from the collection, they...
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Add Bootstrap Glyphicon to Input Box

How can I add a glyphicon to a text type input box? For example I want to have 'icon-user' in a username input, something like this: ...
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Visual Studio 2010 annoyingly opens documents in wrong MDI pane

... Did you perhaps use the "New Horizontal Tab Group" command to split #1 into #1 and #2, then move your errors window into that? I would just try resetting the window layout and see if that fixes it. First, Window -> Close All Documents Then, Window -> Reset Window Layout Exit...