fix pages and add distribution system

app/Controllers/View/AssignmentController.php

@@ -48,6 +48,8 @@ class AssignmentController extends BaseController
         $selectedSemester = (string)($this->request->getGet('semester') ?? $this->semester ?? '');
         $year = (string)($this->schoolYear ?? '');
 
+        $this->applyPendingDistributionDraftsForEnrolledStudents($year);
+
         $tcQ = $this->teacherClassModel;
         if ($year !== '') {
             $tcQ = $tcQ->where('school_year', $year);
@@ -204,6 +206,94 @@ class AssignmentController extends BaseController
     return view('administrator/class_assignment', $data);
 }
 
+    private function applyPendingDistributionDraftsForEnrolledStudents(string $year): void
+    {
+        if ($year === '') {
+            return;
+        }
+
+        try {
+            $db = Database::connect();
+            if (! $db->tableExists('student_section_distribution_drafts')) {
+                return;
+            }
+
+            $rows = $db->table('student_section_distribution_drafts d')
+                ->select('d.id, d.student_id, d.class_section_id')
+                ->join(
+                    'enrollments e',
+                    'e.student_id = d.student_id AND e.school_year = d.school_year',
+                    'inner'
+                )
+                ->where('d.school_year', $year)
+                ->where('d.status', 'pending')
+                ->whereIn('e.enrollment_status', ['payment pending', 'enrolled'])
+                ->groupBy('d.id, d.student_id, d.class_section_id')
+                ->get()
+                ->getResultArray();
+
+            if (empty($rows)) {
+                return;
+            }
+
+            $now = utc_now();
+            $updatedBy = (int)(session()->get('user_id') ?? 0) ?: null;
+
+            $db->transStart();
+            foreach ($rows as $row) {
+                $studentId = (int)($row['student_id'] ?? 0);
+                $sectionId = (int)($row['class_section_id'] ?? 0);
+                if ($studentId <= 0 || $sectionId <= 0) {
+                    continue;
+                }
+
+                $existing = $db->table('student_class')
+                    ->select('id')
+                    ->where('student_id', $studentId)
+                    ->where('school_year', $year)
+                    ->get()
+                    ->getRowArray();
+
+                $payload = [
+                    'student_id'       => $studentId,
+                    'class_section_id' => $sectionId,
+                    'school_year'      => $year,
+                    'updated_by'       => $updatedBy,
+                    'updated_at'       => $now,
+                ];
+
+                if ($existing) {
+                    $db->table('student_class')
+                        ->where('id', (int)$existing['id'])
+                        ->update($payload);
+                } else {
+                    $payload['created_at'] = $now;
+                    $db->table('student_class')->insert($payload);
+                }
+
+                $db->table('enrollments')
+                    ->where('student_id', $studentId)
+                    ->where('school_year', $year)
+                    ->whereIn('enrollment_status', ['payment pending', 'enrolled'])
+                    ->update([
+                        'class_section_id' => $sectionId,
+                        'updated_at'       => $now,
+                    ]);
+
+                $db->table('student_section_distribution_drafts')
+                    ->where('id', (int)$row['id'])
+                    ->update([
+                        'status'     => 'applied',
+                        'applied_at' => $now,
+                        'updated_at' => $now,
+                    ]);
+            }
+            $db->transComplete();
+        } catch (\Throwable $e) {
+            log_message('error', 'applyPendingDistributionDraftsForEnrolledStudents failed: ' . $e->getMessage());
+        }
+    }
+
 
 
     public function save()