class Compra < ActiveRecord::Base

belongs_to :bidon
belongs_to :proveedor
belongs_to :conductor
belongs_to :user
has_many :item_compras, :dependent => :destroy
    accepts_nested_attributes_for :item_compras,
    reject_if: RejectDeeplyNested.blank?,
    :allow_destroy => true
end

class ItemCompra < ActiveRecord::Base
    belongs_to :compra
    belongs_to :product
    belongs_to :calibre
end

class Product < ActiveRecord::Base
has_many :item_compras, :dependent => :restrict_with_error
end

class Calibre < ActiveRecord::Base
    has_many :item_compras

    def to_s
        "#{numero}"
    end
end

create_table "item_compras", force: :cascade do |t|
    t.integer  "compra_id"
    t.integer  "product_id"
    t.integer  "calibre_id"
    t.integer  "cantidad_bidon"
    t.text     "nota"
    t.datetime "created_at",                              null: false
    t.datetime "updated_at",                              null: false
  end

  create_table "calibres", force: :cascade do |t|
    t.integer  "numero"
    t.datetime "created_at", null: false
    t.datetime "updated_at", null: false
  end

  create_table "products", force: :cascade do |t|
    t.string   "name"
    t.text     "descripcion"
    t.integer  "stock",       default: 0
    t.datetime "created_at",                     null: false
    t.datetime "updated_at",                     null: false
  end

  create_table "compras", force: :cascade do |t|
    t.integer  "proveedor_id"
    t.integer  "bidon_id"
    t.integer  "conductor_id"
    t.string   "state",         default: "nueva_compra"
    t.float    "gastos",        default: 0.0
    t.integer  "numero_camion", default: 0
    t.integer  "mic",           default: 0
    t.integer  "factura",       default: 0
    t.integer  "total_for_kg"
    t.float    "total_compra"
    t.integer  "total_bidones"
    t.integer  "user_id"
    t.float    "total_deuda",   default: 0.0
    t.datetime "created_at",                             null: false
    t.datetime "updated_at",                             null: false
  end