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 wi
I have an Array of NSDictionary objects. These Dictionaries are parsed from a JSON file. All value objects in the NSDiction开发者_如何转开发ary are of type NSString, one key is called \"distanceInMet
I have an AUDIO class.This audio has a SOUND_A subclass and a SOUND_B subclass.This is all done correctly and is working fine.
I have a core data project that has Books and Authors开发者_StackOverflow. In the data model Authors has a to-many relationship to Books and Books has a 1-1 relationship with Authors. I\'m trying to p
I\'m 开发者_如何学JAVAlooking for a way to use NSPredicate to set a LIKE condition to fetch objects. In addition to that, an OR would be useful as well. I\'m trying to do something where if a user sea
Is there any common way to decompose an expression created by [NSPredicate predicateWithFormat] to objects NSComprasionPredicate, NSExpression and other?
On my Core Data Entity \"Book\" i have a boolean property, \'wasViewed\' (NSNumber numberWithBool) that tells me if the Book was \"viewed\".
Just wondering what the best way to build a NSPredicate 开发者_JS百科is if some filters are optional?
Building a search with some custom objects and three scopes: All, Active, and Former. Got it working with the below code:
I have a case where i have three entities with one-to-many a开发者_如何学Gond one-to-many relationships:
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