Elep

<?php

namespace ILJ\Backend;

use ILJ\Database\Postmeta;
/**
 * Listview columns
 *
 * Responsible for adding information to listview columns (posts, taxonomies)
 *
 * @package ILJ\Backend
 *
 * @since 1.1.3
 */
class Column
{
    const ILJ_COLUMN_CONFIGURED_LINKS = 'ilj_column_configured_links';
    /**
     * Returns the title for the configured links column in the frontend
     *
     * @return string
     * @since  1.1.3
     */
    protected static function getConfiguredLinksColumnTitle()
    {
        return __('Configured keywords for internal linking', 'internal-links');
    }
    /**
     * Generates and adds all possible configured links columns
     *
     * @return void
     * @since  1.1.3
     */
    public static function addConfiguredLinksColumn()
    {
        $types = get_post_types(array('public' => true));
        foreach ($types as $type) {
            add_action('manage_' . $type . '_posts_custom_column', array('\ILJ\Backend\Column', 'addConfiguredLinksColumnContent'), 5, 2);
            add_filter('manage_' . $type . '_posts_columns', array('\ILJ\Backend\Column', 'addConfiguredLinksColumnHeader'));
            add_filter('manage_edit-' . $type . '_sortable_columns', array('\ILJ\Backend\Column', 'addConfiguredLinksColumnSorter'));
            add_filter('wp', array('\ILJ\Backend\Column', 'sortConfiguredLinksColumn'));
        }
    }
    /**
     * Adds the configured links column header
     *
     * @param array $columns All columns header
     *
     * @return array
     * @since  1.1.3
     */
    public static function addConfiguredLinksColumnHeader($columns)
    {
        \ILJ\Helper\Loader::enqueue_style('ilj_ui', ILJ_URL . 'admin/css/ilj_ui.css', array(), ILJ_VERSION);
        $columns[self::ILJ_COLUMN_CONFIGURED_LINKS] = '<span class="icon icon-ilj" title="' . self::getConfiguredLinksColumnTitle() . '"></span><span class="screen-reader-text">' . self::getConfiguredLinksColumnTitle() . '</span>';
        return $columns;
    }
    /**
     * Outputs the content of the configured links column
     *
     * @param string $column  The current column
     * @param int    $post_id Post ID
     *
     * @return void
     * @since  1.1.3
     */
    public static function addConfiguredLinksColumnContent($column, $post_id)
    {
        if (self::ILJ_COLUMN_CONFIGURED_LINKS === $column) {
            $data = get_post_meta($post_id, Postmeta::ILJ_META_KEY_LINKDEFINITION);
            if (!is_array($data) && !is_object($data)) {
                echo '0';
                return;
            }
            if (empty($data) || is_array($data) && !is_array($data[0])) {
                echo '0';
                return;
            }
            echo count($data[0]);
        }
    }
    /**
     * Adds the sorter to the configured links column
     *
     * @param array $columns All sortable columns
     *
     * @return array
     * @since  1.1.3
     */
    public static function addConfiguredLinksColumnSorter($columns)
    {
        $columns[self::ILJ_COLUMN_CONFIGURED_LINKS] = self::ILJ_COLUMN_CONFIGURED_LINKS;
        return $columns;
    }
    /**
     * Adds the post sorting logic for configured links column
     *
     * @return void
     * @since  1.1.3
     */
    public static function sortConfiguredLinksColumn()
    {
        global $wp_query;
        if (!is_admin()) {
            return;
        }
        $orderby = $wp_query->get('orderby');
        if (self::ILJ_COLUMN_CONFIGURED_LINKS != $orderby) {
            return;
        }
        $page_offset = $wp_query->query_vars['paged'] ? $wp_query->query_vars['paged'] : 1;
        $posts_per_page = $wp_query->query_vars['posts_per_page'];
        $order = (isset($wp_query->query_vars) && isset($wp_query->query_vars['order']) && strcasecmp($wp_query->query_vars['order'], 'desc') == 0) ? 'DESC' : 'ASC';
        $args = $wp_query->query;
        $args['posts_per_page'] = -1;
        $new_query = new \WP_Query($args);
        $posts = $new_query->posts;
        usort($posts, function ($a, $b) use ($order) {
            $keywords_a = get_post_meta($a->ID, Postmeta::ILJ_META_KEY_LINKDEFINITION);
            $keywords_b = get_post_meta($b->ID, Postmeta::ILJ_META_KEY_LINKDEFINITION);
            $count_a = count($keywords_a) ? count($keywords_a[0]) : 0;
            $count_b = count($keywords_b) ? count($keywords_b[0]) : 0;
            $sorting_value = (('DESC' == $order) ? $count_a > $count_b : ($count_a < $count_b)) ? -1 : (($count_a == $count_b) ? 0 : 1);
            return $sorting_value;
        });
        $sliced = array_slice($posts, ($page_offset - 1) * $posts_per_page, $posts_per_page);
        $wp_query->posts = $sliced;
    }
}