如何在使用 Component Creator 构建的 Joomla 3.x 组件的一个视图中包含多个模型

/site/views/multiviewname/view.html.php

<?php

jimport('joomla.application.component.view');

class ComponentnameViewMultiviewname extends JViewLegacy
{
//  $items is for the default model
    protected $items;
//  $ItemsOtherModel is for second model. Notice the '$' used here but not elsewhere   
    protected $ItemsOtherModel;

    public function display($tpl = null)
    {
        $app = JFactory::getApplication();
        $this->state = $this->get('State');
        $this->items = $this->get('Items');
        $this->pagination = $this->get('Pagination');
        $this->params     = $app->getParams('com_componentname');

//  sets default model
        $this->setModel( $this->getModel( 'model-a' ), true );
//  sets second model & uses 'JModelLegacy,' contrary to documentation
        $this->setModel(JModelLegacy::getInstance('model-b', 'componentnameModel'));
//  assigns array from the second model to 'ItemsOtherModel.' there is no '$' sign used.
        $this->ItemsOtherModel = $this->get('Items','model-b');

        parent::display($tpl);
    }

}

/site/views/multiviewname/tmpl/default.php

<?php

echo "<h3>Items from default model</h3> ";
echo var_dump($this->items);

echo "<h3>items from secondary model</h3> ";
//  notice that the '$' is absent from 'ItemsOtherModel'
echo var_dump($this->ItemsOtherModel);