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Rails CSRF Protection + Angular.js: protect_from_forgery makes me to log out on POST

..._forgery option is mentioned in application_controller, then I can log in and perform any GET requests, but on very first POST request Rails resets the session, which logs me out. ...
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How to update attributes without validation

I've got a model with its validations, and I found out that I can't update an attribute without validating the object before. ...
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How to add a 'or' condition in #ifdef

...ned. If you want it to happen if neither of them are defined, you'd use an AND: #if !defined(CONDITION1) && !defined(CONDITION2). – cp.engr Feb 20 '17 at 18:26 ...
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@selector() in Swift?

... chaining on protocol types or is/as tests instead of respondsToSelector:, and use closures wherever you can instead of performSelector: for better type/memory safety.) But there are still a number of important ObjC-based APIs that use selectors, including timers and the target/action pattern. Swift...
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In Vim/Vi, how do you move the cursor to the end of the previous word?

... For people like me wondering the difference between ge and be, it's that you can be in the middle of the word and you'll go to the end of the previous, while be you need to be on the first char of the initial word. – TankorSmash Dec 4 '13 at...
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How do you get the length of a list in the JSF expression language?

...length attributes, they won't implement getSize() or getLength() which JSF and most other standards require, you can't do what you want. There's a couple ways to do this. One: add a function to your Bean that returns the length: In class MyBean: public int getSomelistLength() { return this.somel...
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MongoDB - admin user not authorized

... I was also scratching my head around the same issue, and everything worked after I set the role to be root when adding the first admin user. use admin db.createUser( { user: 'admin', pwd: 'password', roles: [ { role: 'root', db: 'admin' } ] } ); exit; If you ...
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How to render a DateTime object in a Twig template

...splay the game date totally different, like extending the \DateTime class, and adding a __toString() method to it that checks the locale and acts accordingly. Edit: As pointed out by @Nic in a comment, if you use the Intl extension of Twig, you will have a localizeddate filter available, which sho...
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Convert interface{} to int

I'm trying to get a value from a JSON and cast it to int but it doesn't work, and I don't know how to do it properly. 10 An...
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Why do we need a pure virtual destructor in C++?

I understand the need for a virtual destructor. But why do we need a pure virtual destructor? In one of the C++ articles, the author has mentioned that we use pure virtual destructor when we want to make a class abstract. ...