feat(v0.12.3): database migrations for education courses
Tables: courses, lessons, course_enrollments, lesson_progress, certificates, course_reviews with proper indexes and constraints. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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veza-backend-api/migrations/951_education_courses_v0123.sql
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veza-backend-api/migrations/951_education_courses_v0123.sql
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-- v0.12.3: Formation & Éducation (F276-F305)
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-- Courses, lessons, enrollments, progress, certificates, reviews
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-- Courses catalog
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CREATE TABLE IF NOT EXISTS courses (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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creator_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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title VARCHAR(255) NOT NULL,
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slug VARCHAR(255) NOT NULL UNIQUE,
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description TEXT NOT NULL DEFAULT '',
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category VARCHAR(100),
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tags VARCHAR(50)[] DEFAULT '{}',
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cover_image_url TEXT,
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price_cents INTEGER NOT NULL DEFAULT 0,
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currency VARCHAR(3) NOT NULL DEFAULT 'USD',
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pricing_model VARCHAR(50) NOT NULL DEFAULT 'fixed',
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minimum_price_cents INTEGER DEFAULT 0,
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status VARCHAR(50) NOT NULL DEFAULT 'draft',
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level VARCHAR(50) DEFAULT 'beginner',
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language VARCHAR(5) DEFAULT 'en',
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total_duration_seconds INTEGER NOT NULL DEFAULT 0,
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lesson_count INTEGER NOT NULL DEFAULT 0,
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enrollment_count INTEGER NOT NULL DEFAULT 0,
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review_count INTEGER NOT NULL DEFAULT 0,
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average_rating NUMERIC(3,2) DEFAULT 0,
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published_at 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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deleted_at TIMESTAMPTZ
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);
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CREATE INDEX IF NOT EXISTS idx_courses_creator ON courses(creator_id);
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CREATE INDEX IF NOT EXISTS idx_courses_status ON courses(status, published_at DESC);
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CREATE INDEX IF NOT EXISTS idx_courses_category ON courses(category);
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CREATE INDEX IF NOT EXISTS idx_courses_slug ON courses(slug);
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-- Course lessons
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CREATE TABLE IF NOT EXISTS lessons (
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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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order_index INTEGER NOT NULL,
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title VARCHAR(255) NOT NULL,
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description TEXT,
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video_file_path VARCHAR(512),
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duration_seconds INTEGER NOT NULL DEFAULT 0,
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is_preview_free BOOLEAN NOT NULL DEFAULT false,
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transcoding_status VARCHAR(50) NOT NULL DEFAULT 'pending',
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hls_master_playlist_url TEXT,
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thumbnail_url TEXT,
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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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CONSTRAINT uq_lesson_order UNIQUE (course_id, order_index),
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CONSTRAINT chk_order_positive CHECK (order_index > 0)
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);
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CREATE INDEX IF NOT EXISTS idx_lessons_course_order ON lessons(course_id, order_index);
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CREATE INDEX IF NOT EXISTS idx_lessons_transcoding ON lessons(transcoding_status);
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-- Course enrollments (purchases)
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CREATE TABLE IF NOT EXISTS course_enrollments (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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course_id UUID NOT NULL REFERENCES courses(id) ON DELETE CASCADE,
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purchased_price_cents INTEGER NOT NULL DEFAULT 0,
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currency VARCHAR(3) NOT NULL DEFAULT 'USD',
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status VARCHAR(50) NOT NULL DEFAULT 'active',
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access_expires_at TIMESTAMPTZ,
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purchased_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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refunded_at 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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CONSTRAINT uq_enrollment_user_course UNIQUE (user_id, course_id)
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);
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CREATE INDEX IF NOT EXISTS idx_enrollments_user ON course_enrollments(user_id, purchased_at DESC);
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CREATE INDEX IF NOT EXISTS idx_enrollments_course ON course_enrollments(course_id, status);
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-- Lesson progress per user
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CREATE TABLE IF NOT EXISTS lesson_progress (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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lesson_id UUID NOT NULL REFERENCES lessons(id) ON DELETE CASCADE,
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enrollment_id UUID NOT NULL REFERENCES course_enrollments(id) ON DELETE CASCADE,
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watched_percentage INTEGER DEFAULT 0,
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watched_duration_seconds INTEGER DEFAULT 0,
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playback_position_seconds INTEGER DEFAULT 0,
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is_completed BOOLEAN NOT NULL DEFAULT false,
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completed_at 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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CONSTRAINT uq_progress_user_lesson UNIQUE (user_id, lesson_id),
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CONSTRAINT chk_percentage CHECK (watched_percentage >= 0 AND watched_percentage <= 100)
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);
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CREATE INDEX IF NOT EXISTS idx_progress_enrollment ON lesson_progress(enrollment_id);
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-- Completion certificates (declarative, not gamified)
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CREATE TABLE IF NOT EXISTS certificates (
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id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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course_id UUID NOT NULL REFERENCES courses(id) ON DELETE CASCADE,
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enrollment_id UUID NOT NULL REFERENCES course_enrollments(id) ON DELETE CASCADE,
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certificate_code VARCHAR(255) NOT NULL UNIQUE,
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issue_date TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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status VARCHAR(50) NOT NULL DEFAULT 'active',
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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CONSTRAINT uq_cert_user_course UNIQUE (user_id, course_id)
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);
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CREATE INDEX IF NOT EXISTS idx_certificates_code ON certificates(certificate_code);
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-- Course reviews
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CREATE TABLE IF NOT EXISTS course_reviews (
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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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user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
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enrollment_id UUID NOT NULL REFERENCES course_enrollments(id),
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rating INTEGER NOT NULL,
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title VARCHAR(255),
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content TEXT NOT NULL,
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status VARCHAR(50) NOT NULL DEFAULT 'approved',
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helpful_count INTEGER NOT NULL DEFAULT 0,
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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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deleted_at TIMESTAMPTZ,
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CONSTRAINT uq_review_user_course UNIQUE (user_id, course_id),
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CONSTRAINT chk_rating CHECK (rating >= 1 AND rating <= 5)
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);
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CREATE INDEX IF NOT EXISTS idx_reviews_course ON course_reviews(course_id, rating DESC);
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@ -0,0 +1,7 @@
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-- v0.12.3: Rollback Formation & Éducation
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DROP TABLE IF EXISTS course_reviews;
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DROP TABLE IF EXISTS certificates;
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DROP TABLE IF EXISTS lesson_progress;
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DROP TABLE IF EXISTS course_enrollments;
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DROP TABLE IF EXISTS lessons;
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DROP TABLE IF EXISTS courses;
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