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A comment on Rails 4.0: PATCH will replace PUT as the primary HTTP method for updates. Parent comment

Re:Rails 4.0: PATCH will replace PUT as the primary HTTP met... by aaronblohowiak on Saturday February 25, 2012 @09:38PM (#3634601)
_method param is used to override the true http method with the one rails should use for routing, so everything can go over vanilla POST
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Re:Rails 4.0: PATCH will replace PUT as the primary HTTP met... by binarysoul on Saturday February 25, 2012 @10:51PM (#3634744)
yes this is exactly right, its POST for compatibility reasons, rails puts a special parameter in the form submit to map to PUT (for resourceful routes)
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