CODEWITHSUNDEEP
realm
dreamfyre
dreamfyre

Reputation: 51

Can RLMResults be typecasted to NSArray?

We are trying to integrate Realm into our ios app in an iterative manner. Currently we have a lot of variables of the type NSArray which will ultimately have to be replaced by RLMResults. But for now I was wondering if the data from Realm db could be loaded into those variables. Here is an example of one such function : 

func preloadData() {
    if( realmEnabled )
    {
        if( self.currentLeftSideBarState == GLOBAL_CUSTOMER_STATE ) {
            self.allRelations = Relationship.allObjectsInRealm(relationshipRealm)
        } else if( self.currentLeftSideBarState == SINGLE_CUSTOMER_STATE ) {
            let rel = Relationship( customers: currentCustomerSelected! )
            if rel.realm != nil {
                if let rooms = rel.linkingObjectsOfClass( RoomObj.className(), forProperty: "relationship" ) {
                    self.allRoomsforRelationship = rooms
                }
            }
        }
    }
}

Here, allRelations is an RLMResults object while allRoomsForRelationship is an NSArray. This leads to several inconsistencies. It would be convenient to typecast RLMResults to NSArray

Upvotes: 2

Views: 1181

Answers (1)

segiddins
segiddins

Reputation: 4120

Since RLMResults doesn't inherit from NSArray, casting to an NSArray is dangerous -- you'd lose all type safety. What you may want to look into is whether changing those declarations to id<NSFastEnumerable> makes sense for your application, or else maybe declaring a protocol which has the methods common to both NSArray and RLMResults.

Upvotes: 2

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