CODEWITHSUNDEEP
iphoneioscore-data
Bhavesh
Bhavesh

Reputation: 1422

What object is returned by using Fetch Request in Core Data?

Apple Documents says "If a context already contains a managed object for an object returned from a fetch, then the existing managed object is returned in the fetch results"

My Question is If I have updatd the object in the context but not saved the context yet then what object will Fetch Request return? Updated object from Context or New one from Datastore.

Upvotes: 3

Views: 164

Answers (3)

user2893025
user2893025

Reputation:

I guess it returns Updated object from Context.

Note: Due to low reputation i have to put as answer.

Upvotes: 0

Martin R
Martin R

Reputation: 539795

It depends on the includesPendingChanges setting of the fetch request. By default, includesPendingChanges is YES, which means that the fetch will get currently unsaved changes.

However, if you use the NSDictionaryResultType result type for the fetch request, this implicitly implies includesPendingChanges = NO, and you will get only results from the store.

Upvotes: 0

paulrehkugler
paulrehkugler

Reputation: 3271

Your quote answers that question; it will be the one in memory. With that comes the caveat that if you make a new NSManagedObjectContext and perform the fetch request on that context, you will get the object from the data store.

Upvotes: 1

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