I have the ff. Parent schema:
defmodule Parent do
use Ecto.Schema
schema "parents" do
field :name, :string
embeds_many :children, Child
timestamps()
end
end
How do I ensure that one of the fields of Child is unique? I tried setting the field as the primary key like so:
defmodule Child do
use Ecto.Schema
@primary_key {:name, :string, []}
embedded_schema do
field :age, :integer
end
end
But I was still able to insert children with the same names.