Swift Core Data Create Entity Programmatically

Core Data provides a new layer to work with database in ease. We can create models(Entities) graphically without writing a single line of code. However, if you want to try with code, here is a sample one to try.


First create model to store all entities

let model = NSManagedObjectModel()

Create an entity called Person

let personEntity = NSEntityDescription()

personEntity.name = "Person"

personEntity.managedObjectClassName = "Person"

Create an attribute call Name with type of String

let nameAttribute = NSAttributeDescription()

nameAttribute.name = "name"

nameAttribute.attributeType = .stringAttributeType

nameAttribute.isOptional = true

Add "nameAttribute" to "personEntity"

personEntity.properties.append(nameAttribute)

Finally add "personEntity" to previous model

model.entities.append(personEntity)

Congratulation, you just create an entity programmatically.
Here is the full code.

let model = NSManagedObjectModel()

    

let personEntity = NSEntityDescription()

personEntity.name = "Person"

personEntity.managedObjectClassName = "Person"

        

let nameAttribute = NSAttributeDescription()

nameAttribute.name = "name"

nameAttribute.attributeType = .stringAttributeType

nameAttribute.isOptional = true

        

personEntity.properties.append(nameAttribute)

model.entities.append(personEntity)