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How to limit the maximum value of a numeric field in a Django model?

...ould also create a custom model field type - see http://docs.djangoproject.com/en/dev/howto/custom-model-fields/#howto-custom-model-fields In this case, you could 'inherit' from the built-in IntegerField and override its validation logic. The more I think about this, I realize how useful this woul...
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The order of elements in Dictionary

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How do I serialize an object and save it to a file in Android?

...what I would use. It is extremely easy to implement too. developer.android.com/reference/java/io/Serializable.html – mtmurdock Aug 9 '12 at 22:07 6 ...
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What is android:weightSum in android, and how does it work?

...to 1 and the weightSum will be calculated to be equal to 3 as shown in the comment. <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" <!-- android:weightSum="3" --> android:orientation="horizontal" android:layout_gravity="center">...
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Using NumberPicker Widget with Strings

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ImportError: No Module Named bs4 (BeautifulSoup)

...'m working in Python and using Flask. When I run my main Python file on my computer, it works perfectly, but when I activate venv and run the Flask Python file in the terminal, it says that my main Python file has "No Module Named bs4." Any comments or advice is greatly appreciated. ...
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How do I detect when someone shakes an iPhone?

...t:)] ) [super motionEnded:motion withEvent:event]; } - (BOOL)canBecomeFirstResponder { return YES; } @end You can easily transform any UIView (even system views) into a view that can get the shake event simply by subclassing the view with only these methods (and then selecting this new t...
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What is the easiest way to disable/enable buttons and links (jQuery + Bootstrap)

... needed to make an anchor tag appear disabled. <a href="http://example.com" class="btn">My Link</a> Of course, this will not prevent links from functioning when clicked. The above link will take us to http://example.com. To prevent this, we can add in a simple piece of jQuery code to ...
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AttributeError: 'module' object has no attribute 'urlopen'

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Why is the String class declared final in Java?

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