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Django 1.7 - makemigrations not detecting changes

... may happen due to the following reasons: You did not add the app in INSTALLED_APPS list in settings.py (You have to add either the app name or the dotted path to the subclass of AppConfig in apps.py in the app folder, depending on the version of django you are using). Refer documentation: INST...
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How to redirect 404 errors to a page in ExpressJS?

...isionmedia/express/blob/master/examples/error-pages/index.js So it is actually this part: // "app.router" positions our routes // above the middleware defined below, // this means that Express will attempt // to match & call routes _before_ continuing // on, at which point we assume it's a 404...
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Why does writeObject throw java.io.NotSerializableException and how do I fix it?

...re not any variables that store them. My app is a 3d molecule builder, and all my atoms and bounds are just added to the TransformGroup as instances- e.g (new Atom()). The problem is not only that I need them written to a file, but that the user may want to remove or edit current objects. I think I ...
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How to get element by classname or id

...ilable, angular.element delegates to Angular's built-in subset of jQuery, called "jQuery lite" or "jqLite."" share | improve this answer | follow | ...
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iOS: How does one animate to new autolayout constraint (height)

I've never worked with autolayout constraints before. I have a small new app I'm working on and noticed that the NIB's views are defaulting to autolayout. So, I figured I'd take the opportunity to work with it and try to figure out where Apple is going with this. ...
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XML schema or DTD for logback.xml?

... It is not supported officially according to the documentation, but there is an independent project to provide Schema for Logback However, due to extreme flexibility of the Logback configuration, Schema cannot support all possible configuration option...
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Heroku free account limited?

... Actually the bandwidth is 2TB/month (soft): policy.heroku.com/aup More: Request Length: 30 seconds - Hard, Dyno RAM usage: 512MB - Hard – K Z Apr 15 '12 at 5:10 ...
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Do you need to close meta and link tags in HTML?

...ed by the tag close symbol > (if we ignore certain SGML rules that nominally apply in non-XHTML HTML but were never implemented in browsers). What you mean to ask is whether the elements need to be closed by end tags. The answer is that non-XHTML HTML (including HTML5 in HTML serialization), no ...
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Case insensitive access for generic dictionary

... If you think about it, "foo".GetHashCode() and "FOO".GetHashCode() are totally different so there's no reasonable way you could implement a case-insensitive get on a case-sensitive hash map. You can, however, create a case-insensitive dictionary in the first place using:- var comparer = StringCom...
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How can I wait for a thread to finish with .NET?

I've never really used threading before in C# where I need to have two threads, as well as the main UI thread. Basically, I have the following. ...