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2014/10/15 ¤U¤È 10:08:22

iphone Programming Glossary: entitya

What's better way to build NSPredicate with to-many deep relationships?

http://stackoverflow.com/questions/2006927/whats-better-way-to-build-nspredicate-with-to-many-deep-relationships

better way to build NSPredicate with to many deep relationships I have three entities EntityA EntityB and EntityC connected with to many relationships. See schema for details For getting all instance of EntityA which.. EntityA EntityB and EntityC connected with to many relationships. See schema for details For getting all instance of EntityA which depend from EntityB.name I use the predicate like this NSPredicate predicate NSPredicate predicateWithFormat @ ANY.. predicateWithFormat @ ANY EntityB.name like 'SomeName' What should be predicate for getting all instance of EntityA which depend from EntityC.name I tried query like @ ANY EntityB.entitiesC.name like 'SomeName' but get exception multiple..

Core Data Many-to-Many Relationship NSPredicate

http://stackoverflow.com/questions/2822625/core-data-many-to-many-relationship-nspredicate

Data Many to Many Relationship NSPredicate I have a data model with a many to many relationship like EntityA EntityB EntityC . I used to query EntityA with different search criteria and I use NSCompoundPredicate with an array of.. NSPredicate I have a data model with a many to many relationship like EntityA EntityB EntityC . I used to query EntityA with different search criteria and I use NSCompoundPredicate with an array of NSPredicate s. On one of the predicate I wanted.. criteria and I use NSCompoundPredicate with an array of NSPredicate s. On one of the predicate I wanted to query EntityA using EntityC . I tried to use the following SUBQUERY but it did not work. searchPredicate NSPredicate predicateWithFormat..

Where can I find a good example of a Core Data to-many relationship?

http://stackoverflow.com/questions/5399195/where-can-i-find-a-good-example-of-a-core-data-to-many-relationship

represents the relationship as a set while the other represents it as a single object. Take the following entities EntityA name string bees EntityB.a EntityB name string a EntityA.bees In EntityA the relationship bees is a set because there maybe.. represents it as a single object. Take the following entities EntityA name string bees EntityB.a EntityB name string a EntityA.bees In EntityA the relationship bees is a set because there maybe many EntityB objects in the relationship. So using Key.. a single object. Take the following entities EntityA name string bees EntityB.a EntityB name string a EntityA.bees In EntityA the relationship bees is a set because there maybe many EntityB objects in the relationship. So using Key Value coding you..