php - WPMVC : Associations -


i have made form wpmvc in add/edit files. form has dropdownlist. dropdownlist doesn't show anything. form information stored in database when press add button.

i use pre defined methods made wpmvc.

those methods are: belongs_to_dropdown , has_many_dropdown

why dropdownlist save not show options in dropdownlist?

controllers/admin/adminsongscontroller.php

<?php  class adminsongscontroller extends mvcadmincontroller {      var $default_search_joins = array('artist');     var $default_searchable_fields = array('artist.name');     var $default_columns = array('id', 'song_title', 'play_style', 'song_level', 'arrangements_level');        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', 'gender')));         $this->set('artists', $artists);     }    }

?>

models/song.php

<?php  class song extends mvcmodel {       var $display_field = array('name');     var $belongs_to = array('venue');     var $includes = array('artist'); }   ?>

views/admin/add.php

<h2>add song</h2>   <?php echo $this->form->create($model->name); ?> <?php echo $this->form->belongs_to_dropdown('artist', $artists, array('style' => 'width: 200px;','empty' => true)); ?> <?php echo $this->form->input('song_title', array('label' => 'songnaam')); ?> <?php echo $this->form->input('play_style', array('label' => 'speelwijze')); ?> <?php echo $this->form->input('song_level', array('label' => 'zangniveau')); ?> <?php echo $this->form->input('arrangements_level', array('label' => 'arrangementsniveau')); ?> <?php echo $this->form->end('add'); ?>


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