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/db/migrate xxx_create_order xxx_line_item
Ruby´úÂë
Ò».class CreateOrders < ActiveRecord::Migration
¶þ.def self.up
3. create_table :orders do |t|
4. t.string :name
5. t.text :address
6. t.string :email
7. t.string :pay_type, :limit => Ê®
8. t.timestamps
9. end
Ê®.end
11.
12.def self.down
13. drop_table :orders
14.end
15.d
class CreateOrders < ActiveRecord::Migration
def self.up
create_table :orders do |t|
t.string :name
t.text :address
t.string :email
t.string :pay_type, :limit => Ê®
t.timestamps
end
end
def self.down
drop_table :orders
end
end
Ruby´úÂë
1. class CreateLineItems < ActiveRecord::Migration
¶þ.def self.up
3. create_table :line_items do |t|
4. t.integer :product_id, :null => false,:options =>
5. "CONSTRAINT fk_line_items_products REFERENCES products(id)"
6. t.integer :order_id,:null => false, :options =>
7. "CONSTRAINT fk_line_items_orders ReEFERENCES orders(id)"
8. t.integer :quantity, :null => false
9. t.decimal :total_price, :null => false,:precision => °Ë,:scale => ¶þ
10. t.timestamps
11. end
12.end
13.
14.def self.down
15. drop_table :line_items
16.end
17.d
class CreateLineItems < ActiveRecord::Migration
def self.up
create_table :line_items do |t|
t.integer :product_id, :null => false,:options =>
"CONSTRAINT fk_line_items_products REFERENCES products(id)"
t.integer :order_id,:null => false, :options =>
"CONSTRAINT fk_line_items_orders ReEFERENCES orders(id)"
t.integer :quantity, :null => false
t.decimal :total_price, :null => false,:precision => °Ë,:scale => ¶þ
t.timestamps
end
end
def self.down
drop_table :line_items
end
end
t.integer :product_id, :null => false,:options =>
"CONSTRAINT fk_line_items_products REFERENCES p