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Django auto_now and auto_now_add

...Any field with the auto_now attribute set will also inherit editable=False and therefore will not show up in the admin panel. There has been talk in the past about making the auto_now and auto_now_add arguments go away, and although they still exist, I feel you're better off just using a custom save...
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Standard Android Button with a different color

I'd like to change the color of a standard Android button slightly in order to better match a client's branding. 20 Answers...
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What is this date format? 2011-08-12T20:17:46.384Z

...o parse it with Java 1.4 via DateFormat.getDateInstance().parse(dateStr) and I'm getting 8 Answers ...
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Scale image to fit a bounding box

...Even though this is the accepted answer, the answer below is more accurate and is currently supported in all browsers if you have the option of using a background image. No, there is no CSS only way to do this in both directions. You could add .fillwidth { min-width: 100%; height: auto; }...
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Difference between .on('click') vs .click()

...s. I would prefer .on over .click because the former can use less memory and work for dynamically added elements. Consider the following html: <html> <button id="add">Add new</button> <div id="container"> <button class="alert">alert!</button> ...
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How to get overall CPU usage (e.g. 57%) on Linux [closed]

I am wondering how you can get the system CPU usage and present it in percent using bash, for example. 5 Answers ...
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Find all storage devices attached to a Linux machine [closed]

... /proc/partitions will list all the block devices and partitions that the system recognizes. You can then try using file -s <device> to determine what kind of filesystem is present on the partition, if any. ...
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Validate a username and password against Active Directory?

How can I validate a username and password against Active Directory? I simply want to check if a username and password are correct. ...
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CSS image resize percentage of itself?

...ddle This method resize image only visual not it actual dimensions in DOM, and visual state after resize centered in middle of original size. html: <img class="fake" src="example.png" /> css: img { -webkit-transform: scale(0.5); /* Saf3.1+, Chrome */ -moz-transform: scale(0.5); /* FF3....
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Can someone explain mappedBy in JPA and Hibernate?

I am new to hibernate and need to use one-to-many and many-to-one relations. It is a bi-directional relationship in my objects, so that I can traverse from either direction. mappedBy is the recommended way to go about it, however, I couldn't understand it. Can someone explain: ...