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swiftprimary-keydatabase-migrationrealm
Cody Weaver
Cody Weaver

Reputation: 4886

Perform a Realm Migration that adds primary key

Within Realm how do you perform a Migration that adds the Primary Key function to a property, when using Swift?

Upvotes: 0

Views: 847

Answers (1)

TiM
TiM

Reputation: 15991

This was previously answered for Realm Objective-C here: https://stackoverflow.com/a/29417579/599344

Essentially, if you're promoting a property to a primary key, and the property already has a unique value per object, you don't need to do anything special aside from running a normal migration.

If your new primary key property does have duplicate entries, then you'll need to change their values to something unique inside the migration block.

Upvotes: 1

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