db/migrate/20250823142858_create_rafts.rb


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class CreateRafts < ActiveRecord::Migration[8.0]
  def change
    create_table :rafts do |t|
      t.references :bed, null: false, foreign_key: true
      t.integer :location, null: false
      t.references :crop, null: true, foreign_key: true

      t.timestamps
    end

    add_index :rafts, [ :bed_id, :location ], unique: true
  end
end