reconstruction of the project

app/Models/ClassPreparationLog.php

@@ -2,11 +2,15 @@
 
 namespace App\Models;
 
-use Illuminate\Database\Eloquent\Model;
+use App\Models\BaseModel;
 
-class ClassPreparationLog extends Model
+class ClassPreparationLog extends BaseModel
 {
     protected $table = 'class_preparation_log';
+
+    // CI: useTimestamps = false
+    public $timestamps = false;
+
     protected $fillable = [
         'class_section_id',
         'class_section',
@@ -14,5 +18,16 @@ class ClassPreparationLog extends Model
         'prep_data',
         'created_at',
     ];
-    public $timestamps = false;
+
+    protected $casts = [
+        'class_section_id' => 'integer',
+        // If prep_data is JSON in DB, use 'array' (or 'json') cast:
+        'prep_data'        => 'array',
+    ];
+
+    // Optional relationship
+    public function classSection()
+    {
+        return $this->belongsTo(ClassSection::class, 'class_section_id');
+    }
 }