ProfileSerializer removed first_name and last_name from read_only_fields

personal/serializers.py

@@ -73,8 +73,8 @@ class Meta:
         fields = ['grade_name', 'id', 'email', 'first_name', 'last_name', 'school',
                   'phone', 'parent_phone', 'grade', 'is_student', 'has_school',
                   'school_id', 'verbose_name']
-        read_only_fields = ['grade_name', 'id', 'first_name', 'last_name',
-                            'email', 'is_student', 'has_school', 'school', 'verbose_name']
+        read_only_fields = ['grade_name', 'id', 'email',
+                            'is_student', 'has_school', 'school', 'verbose_name']
 
         extra_kwargs = {
             'grade': {
@@ -112,10 +112,11 @@ def update(self, instance, validated_data):
 
     def create(self, validated_data):
         grade = Grade.objects.get(pk=validated_data['grade'])
+        school = School.objects.get(pk=validated_data['school_id'])
         return Profile.objects.create(
             first_name=validated_data['first_name'],
             last_name=validated_data['last_name'],
-            school=validated_data['school'],
+            school=school,
             year_of_graduation=grade.get_year_of_graduation_by_date(),
             phone=validated_data['phone'],
             parent_phone=validated_data['parent_phone']