How to replace method in Objective-c category?

Question

Cocoa

There is a MagicalRecord library.
The library has a category for the NSManagedObjectContext class ( NSManagedObjectContext+MagicalRecord.h ) it has the MR_defaultContext method.
How to replace this method with your own without getting into the library code?
I would like to update the library in the future with the help of git submodules update and do not bother to edit this method every time.

Answer 1

I think swizzling will help here,
Here are more details: stackoverflow.com/questions/5371601/how-do-i-imple...
The only thing I'm not sure about is the categories

Answer 2

You can write another category, another thing is how to make it load guaranteed later than the library one. Is it really necessary to replace this method? Will the library collapse?