db/migrate/20250824163242_create_fertilizer_products.rb


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class CreateFertilizerProducts < ActiveRecord::Migration[8.0]
  def change
    create_table :fertilizer_products do |t|
      t.string :name, null: false
      t.decimal :purity, precision: 5, scale: 2, null: false, default: 100.00

      t.timestamps
    end
    add_index :fertilizer_products, :name, unique: true
  end
end