147 lines
3.2 KiB
SQL
147 lines
3.2 KiB
SQL
create database shop;
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use shop;
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create table user(
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id int primary key auto_increment,
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username varchar(64) not null unique,
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displayname varchar(64) not null,
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email varchar(64) not null unique,
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password varchar(60) not null,
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role_id int not null default 1,
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creation_date timestamp default current_timestamp,
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foreign key (role_id) references user_role(id)
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) auto_increment = 23001;
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create table user_role(
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id int primary key auto_increment,
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role varchar(32) not null unique
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);
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insert into user_role(role) values ('normal')
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insert into user_role(role) values ('admin')
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create table user_statistics(
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id int primary key,
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total_gains decimal(6,2) not null default 0.00,
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sell_count int not null default 0,
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total_spent decimal(6,2) not null default 0.00,
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purchase_count int not null default 0,
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foreign key (id) references user(id)
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);
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create table product(
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id int primary key auto_increment,
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seller_id int not null,
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name varchar(32) not null,
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price_pc decimal(6,2) not null,
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image blob not null,
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image_name varchar(64),
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foreign key (seller_id) references user(id)
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);
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create table cart(
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id int primary key,
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price_total decimal(6,2) not null default 0.00,
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item_count int not null default 0,
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foreign key (id) references user(id)
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);
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create table cart_item(
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id int primary key auto_increment,
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cart_id int not null,
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product_id int not null,
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count int not null,
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price_subtotal decimal(6,2) not null,
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date_added datetime default current_timestamp,
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foreign key (cart_id) references cart(id),
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foreign key (product_id) references product(id)
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);
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create table purchase(
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id int primary key auto_increment,
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user_id int not null,
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purchase_time datetime default current_timestamp,
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price_total decimal(6,2) not null,
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was_successful tinyint(1) not null,
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foreign key (user_id) references user(id)
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);
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create table purchase_item(
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id int primary key auto_increment,
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purchase_id int not null,
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product_id int not null,
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count int not null,
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price_subtotal decimal(6,2) not null,
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foreign key (purchase_id) references purchase(id),
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foreign key (product_id) references product(id)
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);
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delimiter //
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create trigger after_user_insert
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after insert
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on user for each row
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begin
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insert into user_statistics(id) values (new.id);
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insert into cart(id) values (new.id);
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end;
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//
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delimiter;
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delimiter //
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create trigger after_user_delete
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after delete
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on user for each row
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begin
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delete from user_statistics where id = old.id;
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delete from cart where id = old.id;
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end;
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//
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delimiter;
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delimiter //
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create trigger after_cart_insert
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after insert
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on cart_item for each row
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begin
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update cart
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set price_total = (
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select sum(price_subtotal)
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from cart_item
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where cart_id = new.cart_id
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)
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where id = new.cart_id;
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end;
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//
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delimiter;
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delimiter //
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create trigger after_cart_delete
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after delete
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on cart_item for each row
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begin
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update cart
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set price_total = ifnull(
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(select sum(price_subtotal)
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from cart_item
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where cart_id = old.cart_id),
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0.00
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)
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where id = old.cart_id;
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end;
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//
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delimiter;
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delimiter //
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create trigger calculate_price_subtotal
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before insert on cart_item
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for each row
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begin
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set new.price_subtotal = (
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select new.count * p.price_pc
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from product p
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where p.id = new.product_id
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);
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END;
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//
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DELIMITER ; |