add: ver()

Signed-off-by: Kenneth Obsequio <k80308392@gmail.com>

services/course_reading_progress.service.js

@@ -25,6 +25,8 @@ const sequelize             = require('../config/db.config');
 const CourseReadingProgress = require('../models/courses/course_reading_progress.mdl');
 const Lesson                = require('../models/courses/lessons.mdl');
 const Unit                  = require('../models/courses/units.mdl');
+const CourseUnit            = require('../models/courses/course_units.mdl');
+const UnitLesson            = require('../models/courses/unit_lessons.mdl');
 const CourseAssessment       = require('../models/courses/course_assessment.mdl');
 const QuizAttempt            = require('../models/courses/quiz_attempt.mdl');
 
@@ -71,10 +73,18 @@ async function upsertProgress({ userId, courseId, type, referenceId, status }, t
 
 // ─── Derivation helpers ───────────────────────────────────────────────────────
 
-// Unit is completed when every non-deleted lesson under it has a completed row for this user.
+// Unit is completed when every non-deleted lesson attached to it (via unit_lessons)
+// has a completed row for this user.
 async function deriveUnitStatus(userId, courseId, unitId, t) {
-    const lessons = await Lesson.findAll({
+    const links = await UnitLesson.findAll({
         where:       { unit_id: unitId },
+        attributes:  ['lesson_id'],
+        transaction: t,
+    });
+    if (!links.length) return 'in_progress';
+
+    const lessons = await Lesson.findAll({
+        where:       { lesson_id: links.map(l => l.lesson_id) },
         attributes:  ['uuid'],
         transaction: t,
     });
@@ -98,8 +108,15 @@ async function deriveUnitStatus(userId, courseId, unitId, t) {
 // Course is completed when every non-deleted unit under it has a completed row for this user
 // AND the course's assessment (if one has been built) has been passed by this user.
 async function deriveCourseStatus(userId, courseId, t) {
-    const units = await Unit.findAll({
+    const links = await CourseUnit.findAll({
         where:       { course_id: courseId },
+        attributes:  ['unit_id'],
+        transaction: t,
+    });
+    if (!links.length) return 'in_progress';
+
+    const units = await Unit.findAll({
+        where:       { unit_id: links.map(l => l.unit_id) },
         attributes:  ['uuid'],
         transaction: t,
     });