How do I handle unique constraints when seeding data in Rails?

How do I handle unique constraints when seeding data in Rails?

In Rails, you can handle unique constraints by using the find_or_create_by method when seeding your data.

Can you give me an example of how to use find_or_create_by?

Sure! You can use it like this: User.find_or_create_by(email: '[email protected]') to ensure no duplicates.

What if I have multiple attributes to check for uniqueness?

You can pass a hash to find_or_create_by, like this: User.find_or_create_by(email: '[email protected]', username: 'exampleUser').

Are there any other methods to ensure uniqueness?

Yes, you can also use validations in your model to enforce uniqueness at the database level.