Question

I couldn’t find anything about this topic. I have NSManagedObjects that I don’t use insertNewObject… I use alloc init, and then add them to array sort them alphabetically, and then I want to add them to entities and save the context. Any ideas on how to add them to entities, without making entirely new objects?

Answer 1

This may be more proper as a comment, but it is, in fact, the answer.

Do not do that. First, read the documentation, then use the API as directed.

Directly from the documentation for NSManagedObject:

It is important that a managed object is properly configured for use
with Core Data. If you instantiate a managed object directly, you must
call the designated initializer
(initWithEntity:insertIntoManagedObjectContext:).

Then, from the documentation for initWithEntity:insertIntoManagedObjectContext:

Important This method is the designated initializer for
NSManagedObject. You must not initialize a managed object simply by
sending it init.

Note, that the above statement is actually highlighted in an attention-getting box in the documentation.