File Core/DataObjectPostView.php | HJI WP Membership Code Reference

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<?php
namespace hji\construction\core;

use hji\common\utils\WPCache;

/**
 * Class DataObjectPostView
 *
 * This view model automatically hooks into the WP process
 * and generates post object with ready-to-render post content
 * based on the data model passed into it.
 *
 * @package hji\construction\core
 */
abstract class DataObjectPostView extends Component
{
    protected $model; // API Data Model
    protected $postContentTemplate; // Template file name for the post_content
    protected $postExcerptTemplate; // Template file name for the post_excerpt
    protected $cacheTransport;


    public function __construct($dataModel)
    {
        $this->model = $dataModel;

        $this->cacheTransport = new WPCache();

        // Since we render HTML, we have to remove auto P tags

        add_filter('the_content',   array($this, 'removeAutoP'), 0);
        add_filter('the_excerpt',   array($this, 'removeAutoP'), 0);

        // Pass our own post objects into the_posts array

        add_filter('the_posts',     array($this, 'getPosts'), 10, 2);
    }


    public function getPosts($posts, $query)
    {
        global $wp_query;

        if ($query->is_main_query() && $query->query['post_type'] == $this->model->getPostType())
        {
            $posts = array();

            $route = $this->services()->getRouter()->getRoute();

            $hash = serialize($this->model->getParameters());

            if ($route->cache && $cache = $this->cacheTransport->getCache($hash))
            {
                if (isset($cache['wp_query']) && isset($cache['posts']))
                {
                    $wp_query->max_num_pages  = $cache['wp_query']->max_num_pages;
                    $wp_query->paged          = $cache['wp_query']->paged;
                    $wp_query->posts_per_page = $cache['wp_query']->posts_per_page;
                    $wp_query->found_posts    = $cache['wp_query']->found_posts;

                    return $cache['posts'];
                }
            }

            $results = $this->model->getData();

            if (!is_wp_error($results))
            {
                $posts = $this->createPosts($results);

                if ($paging = $this->model->getPaging())
                {
                    $wp_query->max_num_pages  = $paging->getCount();
                    $wp_query->paged          = $paging->getNumber();
                    $wp_query->posts_per_page = $paging->getSize();
                    $wp_query->found_posts    = $this->model->getTotal();
                }

                if ($route->cache)
                {
                    $cache['wp_query'] = $wp_query;
                    $cache['posts']    = $posts;
                    $this->cacheTransport->setCache($hash, $cache, $route->cacheExpires);
                }
            }
        }

        return $posts;
    }


    public function removeAutoP($content)
    {
        global $post;

            //var_dump($post->post_type); die();
        if ($post->post_type == $this->model->getPostType())
        {
            remove_filter('the_content', 'wpautop');
            remove_filter('the_excerpt', 'wpautop');
        }

        return $content;
    }


    function createPosts($dataArray)
    {
        $posts = array();

        foreach ($dataArray as $dataObject)
        {
            $posts[] = $this->createPost($dataObject);
        }

        return $posts;
    }


    /**
     * Creates Post Object (the one that WP converts to WP_Post)
     * with post_content and post_excerpt fully rendered in HTML
     * based on the passed API data model.
     *
     * @param $dataObject
     * @return PostModel
     */
    function createPost($dataObject)
    {
        $post = new PostModel($dataObject);
        $view = $this->services()->getView();

        $post->{$this->_getModelName($dataObject)} = $dataObject;

        if (is_post_type_archive())
        {
            $data = $this->_getPostExcerptData($post, $dataObject);
            $contentHTML = $view->render($this->postExcerptTemplate, $data);
        }
        else
        {
            $data = $this->_getPostContentData($post, $dataObject);
            $contentHTML = $view->render($this->postContentTemplate, $data);
        }

        // While WP expects content and excerpt to be assigned separately,
        // we can't really do that, because content may require additional
        // api call for more data, therefore we conditional assign the same content
        // to both properties

        $post->post_content = $contentHTML;
        $post->post_excerpt = $contentHTML;

        // Pass data array to the post object, so it's accessible from the post template

        $post->view_data = $data;
        unset($post->view_data['post']);

        return $post;
    }


    protected function _getPostContentData($post, $dataObject)
    {
        $data['post'] = $post;
        $data[$this->_getModelName($dataObject)] = $dataObject;

        return $data;
    }


    protected function _getPostExcerptData($post, $dataObject)
    {
        return $this->_getPostContentData($post, $dataObject);
    }


    /**
     * Returns name of the data model, so it can assigned to the post object
     * as a property.
     *
     * Example: ListingModel will return listing and will be represented as
     * $post->listing = $listingModel;
     *
     * @param $dataObject
     * @return mixed
     */
    protected function _getModelName($dataObject)
    {
        $className = get_class($dataObject);
        $parts = explode('\\', $className);
        $modelName = array_pop($parts);

        return str_replace('model', '', strtolower($modelName));
    }

}

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