db_project/conf.sql at master · maratkanov-a/db_project · GitHub

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DROP DATABASE IF EXISTS `db_kek`;
CREATE DATABASE `db_kek` /*!40100 DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci */;
USE `db_kek`;

DELIMITER //
create procedure update_thread(in thread_id INT, isDeleted INT)
BEGIN
CASE isDeleted
WHEN 0
THEN
	UPDATE Thread SET posts = posts+1 WHERE  id = thread_id;
ELSE
	BEGIN END;
END CASE;
END //

DELIMITER ;


CREATE TABLE `User`(
	`id` INT(11) NOT NULL AUTO_INCREMENT,
	`username` CHAR (25),
    `email` CHAR (25) NOT NULL,

	`about` TEXT,
	`name` CHAR (25),
	`isAnonymous` BOOL NOT NULL DEFAULT False,

	PRIMARY KEY (`id`),
    UNIQUE KEY USING HASH (`email`),
    KEY USING HASH (`name`)
) ENGINE = MYISAM;


CREATE TABLE `Forum`(
	`id` INT(11) NOT NULL AUTO_INCREMENT,
    `short_name` CHAR (35) NOT NULL,
    `user` CHAR (25) NOT NULL,
	`name` NCHAR (35) NOT NULL,

	PRIMARY KEY (`id`),
    UNIQUE KEY USING HASH (`short_name`),
    UNIQUE KEY USING HASH (`name`),
    KEY USING HASH (`user`),
    CONSTRAINT FOREIGN KEY (`user`) REFERENCES `User` (`email`) ON DELETE CASCADE
) ENGINE = MYISAM;


CREATE TABLE `Thread` (
    `id` INT(11) NOT NULL AUTO_INCREMENT,
    `forum` CHAR (35) NOT NULL,
    `user` CHAR (25) NOT NULL,

    `title` NCHAR (50) NOT NULL,
    `date` DATETIME NOT NULL,
    `message` TEXT NOT NULL,
    `slug` CHAR (50) NOT NULL,

    `isDeleted` BOOL NOT NULL DEFAULT False,
    `isClosed` BOOL NOT NULL DEFAULT False,
    `dislikes` SMALLINT NOT NULL DEFAULT 0,
    `likes` SMALLINT NOT NULL DEFAULT 0,
    `points` SMALLINT NOT NULL DEFAULT 0,
    `posts` SMALLINT NOT NULL DEFAULT 0,

    PRIMARY KEY (`id`),
    KEY USING HASH (`slug`),
    KEY USING HASH (`forum`),
    CONSTRAINT FOREIGN KEY (`forum`) REFERENCES `Forum` (`short_name`) ON DELETE CASCADE,
    CONSTRAINT FOREIGN KEY (`user`) REFERENCES `User` (`email`) ON DELETE CASCADE
) ENGINE = MYISAM;

ALTER TABLE `Thread` ADD INDEX idx_thread_ud (`user`, `date`);

CREATE TABLE `Post` (
	`id` INT(11) NOT NULL AUTO_INCREMENT,
    `thread` INT(11) NOT NULL,
    `user` CHAR (25) NOT NULL,
    `forum` CHAR (35) NOT NULL,

    `date` DATETIME NOT NULL,
    `message` TEXT NOT NULL,
    `dislikes` SMALLINT NOT NULL DEFAULT 0,
    `likes` SMALLINT NOT NULL DEFAULT 0,
    `points` SMALLINT NOT NULL DEFAULT 0,

	`parent` INT(11),
	`path` VARCHAR(50) NULL,
	`isHighlighted` BOOL NOT NULL DEFAULT False,
	`isApproved` BOOL NOT NULL DEFAULT False,
	`isEdited` BOOL NOT NULL DEFAULT False,
	`isSpam` BOOL NOT NULL DEFAULT False,
	`isDeleted` BOOL NOT NULL DEFAULT False,

	PRIMARY KEY (`id`),
    KEY (`parent`),
    CONSTRAINT FOREIGN KEY (`forum`) REFERENCES `Forum` (`short_name`) ON DELETE CASCADE,
    CONSTRAINT FOREIGN KEY (`user`) REFERENCES `User` (`email`) ON DELETE CASCADE,
    CONSTRAINT FOREIGN KEY (`thread`) REFERENCES `Thread` (`id`) ON DELETE CASCADE
) ENGINE = MYISAM;


ALTER TABLE `Post` ADD INDEX idx_post_fu (`forum`, `user`);
ALTER TABLE `Post` ADD INDEX idx_post_fd (`forum`, `date`);
ALTER TABLE `Post` ADD INDEX idx_post_td (`thread`, `date`);
ALTER TABLE `Post` ADD INDEX idx_post_ud (`user`, `date`);


DROP TRIGGER IF EXISTS ins_post;
DELIMITER //
CREATE TRIGGER ins_post
BEFORE INSERT ON Post
FOR EACH ROW
BEGIN

SET NEW.path=CONCAT(IFNULL((select path from Post where id = NEW.parent), '0'), '.', (SELECT lpad(AUTO_INCREMENT, 6, 0) FROM information_schema.tables WHERE table_name = 'Post' limit 1));

CALL update_thread(NEW.thread, NEW.isDeleted);

END //

CREATE TABLE `Follow` (
    `id` INT(11) NOT NULL AUTO_INCREMENT,
    `follower` CHAR (25) NOT NULL,
    `followee` CHAR (25) NOT NULL,

    PRIMARY KEY (`id`),
    KEY USING HASH (`follower`),
    CONSTRAINT FOREIGN KEY (`follower`) REFERENCES `User` (`email`) ON DELETE CASCADE,
    KEY USING HASH (`followee`),
    CONSTRAINT FOREIGN KEY (`followee`) REFERENCES `User` (`email`) ON DELETE CASCADE
) ENGINE = MYISAM;

CREATE TABLE `Subscribe` (
    `id` INT(11) NOT NULL AUTO_INCREMENT,
    `user` CHAR (25) NOT NULL,
    `thread` INT(11) NOT NULL,

    PRIMARY KEY (`id`),
    KEY USING HASH (`user`),
    CONSTRAINT FOREIGN KEY (`user`) REFERENCES `User` (`email`) ON DELETE CASCADE,
    KEY (`thread`),
    CONSTRAINT FOREIGN KEY (`thread`) REFERENCES `Thread` (`id`) ON DELETE CASCADE
) ENGINE = MYISAM;