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How to combine two or more querysets in a Django view?

I am trying to build the search for a Django site I am building, and in that search, I am searching in 3 different models. And to get pagination on the search result list, I would like to use a generic object_list view to display the results. But to do that, I have to merge 3 querysets into one. ...
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Can you autoplay HTML5 videos on the iPad?

...cial docs: https://webkit.org/blog/6784/new-video-policies-for-ios/ iOS 9 and before As of iOS 6.1, it is no longer possible to auto-play videos on the iPad. My assumption as to why they've disabled the auto-play feature? Well, as many device owners have data usage/bandwidth limits on their de...
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Git submodule head 'reference is not a tree' error

...that is pointing to an invalid commit: the submodule commit remained local and when I try to fetch it from another repo I get: ...
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Checkout old commit and make it a new commit [duplicate]

On Git, say I mess up my commits, and I want to make the version 3 commits ago as the new version. If I do git checkout xxxx , it creates a new branch and it seems like I can only merge it? Could I make this the new "master version"? ...
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How to check if a string contains a substring in Bash

... that spaces in the needle string need to be placed between double quotes, and the * wildcards should be outside. Also note that a simple comparison operator is used (i.e. ==), not the regex operator =~. share | ...
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What does the smiley face “:)” mean in CSS?

... From an article at javascriptkit.com, that's applied for IE 7 and earlier versions: if you add a non-alphanumeric character such as an asterisk (*) immediately before a property name, the property will be applied in IE and not in other browsers. Also there's a hack for <= IE 8:...
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java.lang.UnsupportedClassVersionError Unsupported major.minor version 51.0 [duplicate]

...ortedClassVersionError happens because of a higher JDK during compile time and lower JDK during runtime. Here's the list of versions: Java SE 9 = 53, Java SE 8 = 52, Java SE 7 = 51, Java SE 6.0 = 50, Java SE 5.0 = 49, JDK 1.4 = 48, JDK 1.3 = 47, JDK 1.2 = 46, JDK 1.1 = 45 ...
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How do I do a multi-line string in node.js?

... node v4 and current versions of node As of ES6 (and so versions of Node greater than v4), a new "template literal" intrinsic type was added to Javascript (denoted by back-ticks "`") which can also be used to construct multi-line str...
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javax.faces.application.ViewExpiredException: View could not be restored

... application with container-managed security. The problem is when I log in and open another page on which I logout, then I come back to first page and I click on any link etc or refresh page I get this exception. I guess it's normal (or maybe not:)) because I logged out and session is destroyed. Wha...
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Is there a Python caching library?

...nything so far. I need a simple dict -like interface where I can set keys and their expiration and get them back cached. Sort of something like: ...