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What's the recommended approach to resetting migration history using Django South?

...inted out by @thnee below. Since your answer has so many upvotes I'd really appreciate it if you could edit it and add at least a warning about this, or (even better) change it to reflect @hobs approach (which is just as convenient, but doesn't affect other apps) - thanks! – chris...
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Converting a Java Keystore into PEM Format

...- keystore in java format. foo.p12 - keystore in PKCS#12 format. foo.pem - all keys and certs from keystore, in PEM format. (This last file can be split up into keys and certificates if you like.) Command summary - to create JKS keystore: keytool -keystore foo.jks -genkeypair -alias foo \ ...
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Use cases for NoSQL [closed]

NoSQL has been getting a lot of attention in our industry recently. I'm really interested in what peoples thoughts are on the best use-cases for its use over relational database storage. What should trigger a developer into thinking that particular datasets are more suited to a NoSQL solution. I'm p...
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Comma in C/C++ macro

...his is also a problem for square brackets and braces, even though those usually occur as balanced pairs.) You can enclose the macro argument in parentheses: FOO((std::map<int, int>), map_var); The problem is then that the parameter remains parenthesized inside the macro expansion, which pr...
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How to validate an Email in PHP?

...hould be replaced by the preg family (PCRE Regex Functions). There are a small amount of differences, reading the Manual should suffice. Update 1: As pointed out by @binaryLV: PHP 5.3.3 and 5.2.14 had a bug related to FILTER_VALIDATE_EMAIL, which resulted in segfault when validating large ...
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json.dumps vs flask.jsonify

...dumps() method will just return an encoded string, which would require manually adding the MIME type header. See more about the jsonify() function here for full reference. Edit: Also, I've noticed that jsonify() handles kwargs or dictionaries, while json.dumps() additionally supports lists and oth...
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Reload an iframe with jQuery

...tion() { document.location.reload(); }); and you are good to go with all browsers. Reload an iframe with HTML (no Java Script req.) It have more simpler solution: which works without javaScript in (FF, Webkit) just make an anchor inSide your iframe <a href="#" target="_SELF">Refre...
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How to implement an abstract class in ruby?

I know there is no concept of abstract class in ruby. But if at all it needs to be implemented, how to go about it? I tried something like... ...
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iPhone UITextField - Change placeholder text color

...olor blackColor]; textField.attributedPlaceholder = [[NSAttributedString alloc] initWithString:placeholderText attributes:@{NSForegroundColorAttributeName: color}]; } else { NSLog(@"Cannot set placeholder text's color, because deployment target is earlier than iOS 6.0"); // TODO: Add fall-back...
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How do I get the function name inside a function in PHP?

... totymedli 20.9k1818 gold badges102102 silver badges135135 bronze badges answered Jun 17 '09 at 10:33 Silfverstr...