Yared Yemane
f5e925dc96
Replace rename-based lesson migration with additive sub_module_lessons creation, preserve sub_module_practices as its own model, and enforce QUIZ/PRACTICE filtering in hierarchy reads to prevent cross-mixing. Made-with: Cursor
36 lines
1.2 KiB
SQL
36 lines
1.2 KiB
SQL
CREATE TABLE IF NOT EXISTS sub_module_practices (
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id BIGSERIAL PRIMARY KEY,
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sub_module_id BIGINT NOT NULL REFERENCES sub_modules(id) ON DELETE CASCADE,
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title VARCHAR(255) NOT NULL,
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description TEXT,
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thumbnail TEXT,
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intro_video_url TEXT,
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question_set_id BIGINT NOT NULL REFERENCES question_sets(id) ON DELETE CASCADE,
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display_order INT NOT NULL DEFAULT 0,
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is_active BOOLEAN NOT NULL DEFAULT TRUE,
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created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
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UNIQUE(question_set_id)
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);
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-- If the table already existed from older unified hierarchy migrations,
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-- backfill missing columns so practices keep their own richer schema.
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ALTER TABLE sub_module_practices
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ADD COLUMN IF NOT EXISTS title VARCHAR(255);
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ALTER TABLE sub_module_practices
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ADD COLUMN IF NOT EXISTS description TEXT;
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ALTER TABLE sub_module_practices
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ADD COLUMN IF NOT EXISTS thumbnail TEXT;
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UPDATE sub_module_practices
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SET title = COALESCE(NULLIF(title, ''), 'Practice')
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WHERE title IS NULL OR title = '';
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ALTER TABLE sub_module_practices
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ALTER COLUMN title SET NOT NULL;
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CREATE INDEX IF NOT EXISTS idx_sub_module_practices_sub_module_id
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ON sub_module_practices(sub_module_id);
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