php - WPMVC : dropdown list -

i using wpmvc plugin wordpress, struggling formhelpers. want make dropdownlist example gender male/female. why doesnt select method show text. , if shows text in dropdown doesnt save in database name field.

view/add.php

<h2>add artist</h2> <?php echo $this->form->create($model->name); ?> <?php echo $this->form->input('name'); ?>  <?php echo $this->form->select('gender', $options = array('male' => 'male' ,'female' => 'female')); ?> <?php echo $this->form->end('add'); ?> 

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admin/artistcontroller.php

class adminartistscontroller extends mvcadmincontroller {      var $default_columns = array('id', 'name', 'gender');        public function add() {          $this->set_artists();         $this->create_or_save();       }      public function edit() {          $this->set_artists();         $this->verify_id_param();         $this->set_object();         $this->create_or_save();      }      private function set_artists() {          $this->load_model('artist');         $artists = $this->artist->find(array('selects' => array('id', 'name')));         $this->set('artists', $artists);     }