Restkit edit inserting in coredata

问题

i use restkit to consume a web service ,, but when i get data i want to add some other parameters, i searched and i found that i should implement function called willsave but i don't know the way

NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:brandId,@"brandId",categoryId,@"categoryId", nil];

[[RKObjectManager sharedManager] postObject:nil path:@"/mywebservice" parameters:params success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {

    [self getProductsList];

} failure:^(RKObjectRequestOperation *operation, NSError *error) {

}];

回答1:

You don't need to use willSave, it depends what you want to do...

You can use the success block, iterate through the results provided in mappingResult, make changes and then save the main thread MOC to the persistent store.

willSave is a method on NSManagedObject. So, you would implement it on the managed object subclasses. This will result in changes being saved as part of the mapping process, but it's only really useful for derived values / time-stamping.

来源：https://stackoverflow.com/questions/22388350/restkit-edit-inserting-in-coredata