CODEWITHSUNDEEP
objective-ccore-datatagsentity-relationship
averageUsername123
averageUsername123

Reputation: 723

Tags Implementation in Objective-C

I have a "Note" entity for my application, where its attributes are "Title", "Body", and "Tags".

I'm having trouble with the "Tags" attribute; I want to be able to input multiple tags when creating the Note, and then the program will be able to give me other Notes that have the same tag (Exactly like how Stackoverflow uses tags for questions). I'm not quite sure what the relationship between the entities should be.

How should I approach this problem?

Upvotes: 4

Views: 130

Answers (2)

DrummerB
DrummerB

Reputation: 40211

Tag shouldn't be an attribute, but a many-to-many relationship. A Note can have multiple Tags (I assume) and a Tag can be added to multiple different Notes.

This way you'll be able to set up a fetch request to return all the Notes that have a specific Tag.

Upvotes: 2

pronvit
pronvit

Reputation: 4279

Create Tag entity and add to-many relationship from Note to Tag and also to-many relationship from Tag to Note (and set set them to be inverses of each other).

Upvotes: 2

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