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Cannot set content-type to 'application/json' in jQuery.ajax

...S header is used to find out if the request from the originating domain is allowed. Using fiddler, I added the following to the response headers from my server. Access-Control-Allow-Origin: * Access-Control-Allow-Headers: Content-Type Access-Control-Allow-Methods: POST, GET, OPTIONS Once the b...
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Automatically deleting related rows in Laravel (Eloquent ORM)

...(); static::deleting(function($user) { // before delete() method call this $user->photos()->delete(); // do the rest of the cleanup... }); } } You should probably also put the whole thing inside a transaction, to ensure the referential integrity...
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Explain the “setUp” and “tearDown” Python methods used in test cases

...nd tearDown methods while writing test cases apart from that setUp is called immediately before calling the test method and tearDown is called immediately after it has been called? ...
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How to install packages using pip according to the requirements.txt file from a local directory?

... This works for me: $ pip install -r requirements.txt --no-index --find-links file:///tmp/packages --no-index - Ignore package index (only looking at --find-links URLs instead). -f, --find-links <URL> - If a URL or path to an html file, then par...
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Get started with Latex on Linux [closed]

... First you'll need to Install it: If you're using a distro which packages LaTeX (almost all will do) then look for texlive or tetex. TeX Live is the newer of the two, and is replacing tetex on most distributions now. If you're using Debian or Ubunt...
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Why does the lock object have to be static?

...ons. And in the latter, there are better ways of doing it anyway. So it really depends: how is Locker used in your scenario? Is it protecting something that is itself static? If so, the lock should be static. If it is protecting something that is instance based, then IMO the lock should also be ins...
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Convert UTC to local time in Rails 3

...mes. See them with: rake time:zones:us You can also run rake time:zones:all for all time zones. To see more zone-related rake tasks: rake -D time So, to convert to EST, catering for DST automatically: Time.now.in_time_zone("Eastern Time (US & Canada)") ...
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Should enums in C# have their own file? [closed]

..." (how much does an extra file cost?), but it is often inconventient. Usually there's one class that's most closely associtated with the enum, and I put them in the same file. share | improve this...
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How do I control how Emacs makes backup files?

...tory as the file you're editing, but that is easy to change. You can make all backup files go into a directory by putting something like the following in your .emacs. (setq backup-directory-alist `(("." . "~/.saves"))) There are a number of arcane details associated with how Emacs might create y...
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What is “stdafx.h” used for in Visual Studio?

A file named stdafx.h is automatically generated when I start a project in Visual Studio 2010. I need to make a cross-platform C++ library, so I don't/can't use this header file. ...