Publication\Model\Type::cachedListArray PHP Method

    public static function cachedListArray($params = [])
    {
        $cache = DI::getDefault()->get('cache');
        $key = self::cacheListKey($params);
        $list = $cache->get($key);
        if (!$list) {
            $result = self::find();
            $list = [];
            foreach ($result as $el) {
                if (isset($params['value']) && $params['value']) {
                    $value = $el->{$params['value']};
                } else {
                    $value = $el->getTitle();
                }
                if (isset($params['key']) && $params['key']) {
                    $list[$el->{$params['key']}] = $value;
                } else {
                    $list[$el->getSlug()] = $value;
                }
            }
            $cache->save($key, $list, 120);
        }
        return $list;
    }

 public function initialize()
 {
     $type = new Select('type_id', Type::cachedListArray(['key' => 'id']));
     $type->setLabel('Type of Publication');
     $this->add($type);
     $title = new Text('title', ['required' => true]);
     $title->addValidator(new PresenceOf(['message' => 'Title can not be empty']));
     $title->setLabel('Title');
     $this->add($title);
     $slug = new Text('slug');
     $slug->setLabel('Slug');
     $this->add($slug);
     $date = new Text('date');
     $date->setLabel('Publication Date');
     $this->add($date);
     $text = new TextArea('text');
     $text->setLabel('Text');
     $this->add($text);
     $meta_title = new Text('meta_title', ['required' => true]);
     $meta_title->setLabel('meta-title');
     $this->add($meta_title);
     $meta_description = new TextArea('meta_description', ['style' => 'height:4em; min-height: inherit']);
     $meta_description->setLabel('meta-description');
     $this->add($meta_description);
     $meta_keywords = new TextArea('meta_keywords', ['style' => 'height:4em; min-height: inherit']);
     $meta_keywords->setLabel('meta-keywords');
     $this->add($meta_keywords);
     $preview_inner = new Check('preview_inner');
     $preview_inner->setLabel('Show preview image inside publication');
     $this->add($preview_inner);
     $image = new Image('preview_src');
     $image->setLabel('Thumbnail Image');
     $this->add($image);
 }