/**
  * Creates Admin account
  *
  * @return Admin|null the saved model or null if saving fails
  */
 public function createAdmin()
 {
     if ($this->validate()) {
         $admin = new Admin();
         $admin->nicename = $this->nicename;
         $admin->username = $this->username;
         $admin->email = $this->email;
         $admin->role = $this->role;
         $admin->status = $this->status;
         $admin->setPassword($this->password);
         $admin->generateAuthKey();
         if ($admin->save()) {
             return $admin;
         }
     }
     return null;
 }