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2014/10/15 ¤U¤È 10:13:07
iphone Programming Glossary: rackCore data insert new data with existing relationship http://stackoverflow.com/questions/9293301/core-data-insert-new-data-with-existing-relationship existing relationship I got problem with core data I had a table that exactly look like this User relationship with Rack relationship with RackItem How should I insert new object to rackItem with existing item object in User and existing Rack.. I got problem with core data I had a table that exactly look like this User relationship with Rack relationship with RackItem How should I insert new object to rackItem with existing item object in User and existing Rack object I try fetch the.. relationship with RackItem How should I insert new object to rackItem with existing item object in User and existing Rack object I try fetch the existing object predicate NSPredicate predicateWithFormat @ userID @ AND rack.rackID @ _userID..
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