61 lines
1.7 KiB
PL/PgSQL
61 lines
1.7 KiB
PL/PgSQL
-- DROP OWNED BY CURRENT_USER CASCADE;
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CREATE TYPE STAT AS ENUM ('waiting', 'p1turn', 'p2turn');
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CREATE TABLE IF NOT EXISTS players (
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id CHAR(16) PRIMARY KEY,
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board CHAR(10) [10],
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room_code CHAR(4) NOT NULL
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);
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CREATE TABLE IF NOT EXISTS rooms (
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code CHAR(4) PRIMARY KEY,
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player1_id CHAR(16),
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player2_id CHAR(16),
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stat STAT DEFAULT 'waiting' NOT NULL,
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CHECK (
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(
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player1_id IS DISTINCT
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FROM player2_id
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)
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OR (
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player1_id IS NULL
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AND player2_id IS NULL
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)
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)
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);
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CREATE TABLE IF NOT EXISTS abandoned_players (
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time TIMESTAMP PRIMARY KEY,
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id CHAR(16) NOT NULL,
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CONSTRAINT fk_player_id FOREIGN KEY (id) REFERENCES players (id) ON DELETE CASCADE ON UPDATE CASCADE
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);
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ALTER TABLE players
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ADD CONSTRAINT fk_room_code FOREIGN KEY (room_code) REFERENCES rooms (code) ON DELETE
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SET NULL;
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ALTER TABLE rooms
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ADD CONSTRAINT fk_player1 FOREIGN KEY (player1_id) REFERENCES players (id) ON DELETE
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SET NULL ON UPDATE CASCADE,
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ADD CONSTRAINT fk_player2 FOREIGN KEY (player2_id) REFERENCES players (id) ON DELETE
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SET NULL ON UPDATE CASCADE;
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-- delete room if both players are null
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CREATE OR REPLACE FUNCTION delete_room() RETURNS TRIGGER AS $$ BEGIN IF (
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SELECT player1_id IS NULL
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AND player2_id IS NULL
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FROM rooms
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WHERE code = OLD.room_code
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) THEN
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DELETE FROM rooms
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WHERE code = OLD.room_code;
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END IF;
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RETURN OLD;
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END;
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$$ LANGUAGE plpgsql;
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CREATE TRIGGER delete_room_trigger
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AFTER DELETE ON players FOR EACH ROW EXECUTE FUNCTION delete_room();
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CREATE INDEX idx_player_room_code ON players (room_code);
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CREATE INDEX idx_room_status ON rooms (stat); |