51 lines
1.5 KiB
PL/PgSQL
51 lines
1.5 KiB
PL/PgSQL
-- Initial schema for courses, modules, and lessons
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CREATE TABLE courses (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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title TEXT NOT NULL,
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description TEXT,
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instructor_id UUID NOT NULL,
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start_date TIMESTAMPTZ,
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end_date TIMESTAMPTZ,
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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CREATE TABLE modules (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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course_id UUID NOT NULL REFERENCES courses(id) ON DELETE CASCADE,
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title TEXT NOT NULL,
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position INT NOT NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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CREATE TABLE lessons (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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module_id UUID NOT NULL REFERENCES modules(id) ON DELETE CASCADE,
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title TEXT NOT NULL,
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content_type TEXT NOT NULL,
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content_url TEXT,
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position INT NOT NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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CREATE TABLE audit_logs (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id UUID NOT NULL,
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action TEXT NOT NULL,
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entity_type TEXT NOT NULL,
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entity_id UUID NOT NULL,
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changes JSONB NOT NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
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);
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-- Trigger to update updated_at
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CREATE OR REPLACE FUNCTION update_updated_at_column()
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RETURNS TRIGGER AS $$
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BEGIN
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NEW.updated_at = NOW();
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RETURN NEW;
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END;
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$$ language 'plpgsql';
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CREATE TRIGGER update_courses_updated_at BEFORE UPDATE ON courses FOR EACH ROW EXECUTE PROCEDURE update_updated_at_column();
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