feat: fixing certificate and block

2026-04-14 13:07:45 -04:00
parent e0e6655b91
commit 169a0a18a2
21 changed files with 837 additions and 1226 deletions
@@ -0,0 +1,59 @@
+-- Migration: Automatic Enrollment Progress Update via Trigger
+-- Created: 2026-04-14
+
+-- 1. Function to recalculate course progress for a student
+CREATE OR REPLACE FUNCTION fn_recalculate_enrollment_progress()
+RETURNS TRIGGER AS $$
+DECLARE
+    v_total_lessons INTEGER;
+    v_completed_lessons INTEGER;
+    v_progress FLOAT4;
+BEGIN
+    -- Get total number of lessons in the course
+    -- We use the course_id from the new grade entry
+    SELECT COUNT(*) INTO v_total_lessons
+    FROM lessons
+    WHERE module_id IN (SELECT id FROM modules WHERE course_id = NEW.course_id);
+
+    -- Get number of distinct lessons with a grade for this user in this course
+    SELECT COUNT(DISTINCT lesson_id) INTO v_completed_lessons
+    FROM user_grades
+    WHERE user_id = NEW.user_id AND course_id = NEW.course_id;
+
+    -- Calculate progress percentage
+    IF v_total_lessons > 0 THEN
+        v_progress := (v_completed_lessons::FLOAT4 / v_total_lessons::FLOAT4) * 100;
+    ELSE
+        v_progress := 0;
+    END IF;
+
+    -- Update the enrollments table for this specific user and course
+    UPDATE enrollments
+    SET progress = v_progress
+    WHERE user_id = NEW.user_id AND course_id = NEW.course_id;
+
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+-- 2. Trigger to execute the function after any activity is graded
+DROP TRIGGER IF EXISTS tr_update_enrollment_progress ON user_grades;
+CREATE TRIGGER tr_update_enrollment_progress
+AFTER INSERT OR UPDATE ON user_grades
+FOR EACH ROW
+EXECUTE FUNCTION fn_recalculate_enrollment_progress();
+
+-- 3. Initial sync: Update progress for all existing enrollments
+UPDATE enrollments e
+SET progress = COALESCE(
+    (
+        SELECT (COUNT(DISTINCT ug.lesson_id)::FLOAT4 / NULLIF((
+            SELECT COUNT(*) 
+            FROM lessons l 
+            WHERE l.module_id IN (SELECT id FROM modules m WHERE m.course_id = e.course_id)
+        ), 0)::FLOAT4) * 100
+        FROM user_grades ug
+        WHERE ug.user_id = e.user_id AND ug.course_id = e.course_id
+    ),
+    0
+);