reconstruction of the project

app/Models/ClassProgressReport.php

@@ -2,11 +2,15 @@
 
 namespace App\Models;
 
-use Illuminate\Database\Eloquent\Model;
+use App\Models\BaseModel;
 
-class ClassProgressReport extends Model
+class ClassProgressReport extends BaseModel
 {
     protected $table = 'class_progress_reports';
+
+    // ✅ CI: useTimestamps = true (created_at/updated_at)
+    public $timestamps = true;
+
     protected $fillable = [
         'class_section_id',
         'teacher_id',
@@ -28,5 +32,32 @@ class ClassProgressReport extends Model
         'created_at',
         'updated_at',
     ];
-    public $timestamps = true;
+
+    protected $casts = [
+        'class_section_id' => 'integer',
+        'teacher_id'       => 'integer',
+
+        // change to 'datetime' if your columns are DATETIME
+        'week_start'       => 'date',
+        'week_end'         => 'date',
+
+        // If flags_json is JSON in DB, this makes it an array automatically
+        'flags_json'       => 'array',
+    ];
+
+    /* Optional relationships */
+    public function classSection()
+    {
+        return $this->belongsTo(ClassSection::class, 'class_section_id');
+    }
+
+    public function teacher()
+    {
+        return $this->belongsTo(User::class, 'teacher_id');
+    }
+
+    public function attachments()
+    {
+        return $this->hasMany(ClassProgressAttachment::class, 'report_id');
+    }
 }