19 lines
751 B
MySQL
19 lines
751 B
MySQL
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-- T0281: Create Track Like System Database Model
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-- Create table track_likes with user_id, track_id, created_at and unique index
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-- Table track_likes
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CREATE TABLE IF NOT EXISTS track_likes (
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id BIGSERIAL PRIMARY KEY,
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user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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track_id BIGINT NOT NULL REFERENCES tracks(id) ON DELETE CASCADE,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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-- Indexes
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CREATE INDEX IF NOT EXISTS idx_track_likes_user ON track_likes(user_id);
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CREATE INDEX IF NOT EXISTS idx_track_likes_track ON track_likes(track_id);
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-- Unique constraint to prevent duplicate likes (user can only like a track once)
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CREATE UNIQUE INDEX IF NOT EXISTS idx_track_likes_unique ON track_likes(user_id, track_id);
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