32 lines
1.2 KiB
MySQL
32 lines
1.2 KiB
MySQL
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-- Migration: Create playlists and playlist_tracks tables
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-- T0296: Create Playlist Database Model
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CREATE TABLE IF NOT EXISTS playlists (
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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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title VARCHAR(200) NOT NULL,
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description TEXT,
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is_public BOOLEAN DEFAULT TRUE,
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cover_url VARCHAR(500),
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track_count INTEGER DEFAULT 0,
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created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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CREATE TABLE IF NOT EXISTS playlist_tracks (
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id BIGSERIAL PRIMARY KEY,
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playlist_id BIGINT NOT NULL REFERENCES playlists(id) ON DELETE CASCADE,
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track_id BIGINT NOT NULL REFERENCES tracks(id) ON DELETE CASCADE,
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position INTEGER NOT NULL,
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added_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
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UNIQUE(playlist_id, track_id)
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);
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-- Indexes for performance
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CREATE INDEX IF NOT EXISTS idx_playlists_user_id ON playlists(user_id);
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CREATE INDEX IF NOT EXISTS idx_playlist_tracks_playlist_id ON playlist_tracks(playlist_id);
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CREATE INDEX IF NOT EXISTS idx_playlist_tracks_track_id ON playlist_tracks(track_id);
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CREATE INDEX IF NOT EXISTS idx_playlist_tracks_position ON playlist_tracks(playlist_id, position);
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