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Create Django model or update if exists

... update the user object. Sample use is as follows: # In both cases, the call will get a person object with matching # identifier or create one if none exists; if a person is created, # it will be created with name equal to the value in `name`. # In this case, if the Person already exists, its exi...
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adb command not found

...adb forward command before I could use the ezkeyboard application which allows user to type on the phone using browser. ...
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Are custom elements valid HTML5?

...cript interfaces. Custom elements is a part of a larger W3 specification called Web Components, along with Templates, HTML Imports, and Shadow DOM. Web Components enable Web application authors to define widgets with a level of visual richness and interactivity not possible with CSS alone, and eas...
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How can I explode and trim whitespace?

... This is also looping (internally) by PHP – Jason OOO Oct 13 '13 at 15:47 2 ...
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Why does git revert complain about a missing -m option?

... By default git revert refuses to revert a merge commit as what that actually means is ambiguous. I presume that your HEAD is in fact a merge commit. If you want to revert the merge commit, you have to specify which parent of the merge you want to consider to be the main trunk, i.e. what you want...
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Unnecessary curly braces in C++?

...it can also be handy to have resources (files, mutexes, whatever) automatically released as the scope exits, which can make things cleaner. This means you can hold on to some shared resource for a shorter duration than you would if you grabbed it at the start of the method. ...
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Returning JSON from PHP to JavaScript?

I have a PHP script that's being called through jQuery AJAX. I want the PHP script to return the data in JSON format to the javascript. Here's the pseudo code in the PHP script: ...
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Node.js Error: Cannot find module express

... You need to install Express locally into the context of your application (node_modules folder): $ npm install express The reason for this is that applications always look in their local context for any dependencies. The global installatio...
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Java 8 List into Map

... Using (statically imported) Seq from the JOOL library (which I'd recommend to anyone using Java 8), you can also improve the brevity with: seq(choices).toMap(Choice::getName) – lukens Mar 18 '17 at ...
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How can I convert a PFX certificate file for use with Apache on a linux server?

... Additionally to openssl pkcs12 -in domain.pfx -clcerts -nokeys -out domain.cer openssl pkcs12 -in domain.pfx -nocerts -nodes -out domain.key I also generated Certificate Authority (CA) certificate: openssl pkcs12 -in domain.pfx...