fix bug admin

student_management/models/student_student.py

@@ -26,7 +26,7 @@ class StudentStudent(models.Model):
         self.write({'state': 'confirmed'})
 
     def action_graduate(self):
-        if not self.env.user.has_group('base.group_sysem'):
+        if not self.env.user.has_group('base.group_system'):
             raise UserError(_("Only administrators can graduate students!"))
         self.write({'state': 'graduated'})
 
@@ -36,10 +36,6 @@ class StudentStudent(models.Model):
         new_id = int(last_student.student_id.split('-')[-1]) + 1 if last_student and last_student.student_id else 1
         return f'STU-{fields.Date.today().year}-{new_id:04d}'
 
-    def generate_student_id(self):
-        for record in self:
-            record.student_id = self._generate_student_id()
-
     def action_generate_student_id(self):
         for record in self:
             record.write({'student_id': self._generate_student_id()})