class CreateSchoolGrades < ActiveRecord::Migration[6.0]
  def change
    create_table :school_grades do |t|
      t.references :school, null: false, type: :integer,
        foreign_key: { to_table: :Schools, primary_key: :SchoolID }

      t.integer :grade, null: false
      t.string :name, null: false
      t.string :external, null: false
      t.integer :edfi_grade
      t.boolean :active, null: false, default: false

      t.timestamps

      t.index [:school_id, :grade], unique: true
    end
  end
end