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Alex Rivera
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Suppose I have a Core Data model with an abstract entity called "Animal." Then, I have many other entities that inherit from this abstract entity: "Lion", "Dog", "Cat", etc. (I'm not developing a zoo program, but this analogy works well for the issue I'm explaining!) What I want to know is: Can I fetch "all animals" at once by doing this: NSFetchRequest *searchRequest = [[NSFetchRequest alloc] init]; [searchRequest setEntity:[NSEntityDescription entityForName:@"Animal" inManagedObjectContext:aContext]]; NSArray *matchedObjects = [aContext executeFetchRequest:searchRequest error:nil]; I understand there are methods on NSEntityDescription to determine whether an entity inherits from another. But is there a fast way to grab all entities that are of a particular (abstract) type --- in this case, "Animal"? If the approach above is invalid, what is the most efficient way to go about this? Thanks!
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