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create schema if not exists webs;
create table if not exists webs.category (
`id` int not null auto_increment,
`name` varchar(45) not null,
`parent` int null default null,
primary key (`id`),
constraint `category_parent_fk`
foreign key (`parent`)
references webs.category (`id`)
on update cascade
);
create table if not exists webs.product (
`id` int not null auto_increment,
`name` varchar(255) not null,
`price` decimal(5, 2) not null,
`image` boolean not null default false,
`description` mediumtext null default null,
`category` int not null,
primary key (`id`),
constraint `product_category_fk`
foreign key (`category`)
references webs.category (`id`)
on update cascade
);
create table if not exists webs.customer (
`id` int not null auto_increment,
`name` varchar(45) not null,
primary key (`id`)
);
create table if not exists webs.cart (
`id` int not null auto_increment,
`product` int not null,
`customer` int not null,
`count` int not null default 1,
primary key (`id`),
constraint `cart_product_fk`
foreign key (`product`)
references webs.product (`id`)
on update cascade,
constraint `cart_customer_fk`
foreign key (`customer`)
references webs.customer (`id`)
on update cascade
);
create table if not exists webs.promotion (
`id` int not null auto_increment,
`product` int not null,
`count_buff` int not null default 1,
`price_buff` decimal(4, 3) not null default 1.0,
primary key (`id`),
constraint `promotion_product_fk`
foreign key (`product`)
references webs.product (`id`)
on update cascade
);
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