PHP WP_Query::is_main_query方法代码示例

/**
 * @param WP_Query $q
 *
 * @return mixed
 */
function wpml_home_url_parse_query($q)
{
    if (!$q->is_main_query()) {
        return $q;
    }
    global $sitepress_settings;
    $site_url = get_site_url();
    $parts = parse_url($site_url);
    if (!isset($parts['path'])) {
        $parts['path'] = '';
    }
    if (!WPML_Root_Page::is_current_request_root()) {
        return $q;
    } else {
        remove_action('parse_query', 'wpml_home_url_parse_query');
        $request_array = explode('/', $_SERVER["REQUEST_URI"]);
        $sanitized_query = array_pop($request_array);
        $potential_pagination_parameter = array_pop($request_array);
        if (is_numeric($potential_pagination_parameter)) {
            if ($sanitized_query) {
                $sanitized_query .= '&';
            }
            $sanitized_query .= 'page=' . $potential_pagination_parameter;
        }
        $sanitized_query = str_replace('?', '', $sanitized_query);
        $q->parse_query($sanitized_query);
        add_action('parse_query', 'wpml_home_url_parse_query');
        $q->query_vars['page_id'] = $sitepress_settings["urls"]["root_page"];
        $q->query['page_id'] = $sitepress_settings["urls"]["root_page"];
        $q->is_page = 1;
        $q->queried_object = new WP_Post(get_post($sitepress_settings["urls"]["root_page"]));
        $q->queried_object_id = $sitepress_settings["urls"]["root_page"];
        $q->query_vars['error'] = "";
        $q->is_404 = false;
        $q->query['error'] = null;
    }
    return $q;
}

 /**
  * Set any query flags
  *
  * @param WP_Query $query
  *
  * @return void
  **/
 public static function parse_query($query)
 {
     // set paged
     if ($query->is_main_query() && isset($_GET['tribe_paged'])) {
         $query->set('paged', $_REQUEST['tribe_paged']);
     }
     // Add tribe events post type to tag queries
     if ($query->is_tag && (array) $query->get('post_type') != array(TribeEvents::POSTTYPE)) {
         $types = $query->get('post_type');
         if (empty($types)) {
             $types = array('post');
         }
         if (is_array($types)) {
             $types[] = TribeEvents::POSTTYPE;
         } else {
             if (is_string($types)) {
                 $types = array($types, TribeEvents::POSTTYPE);
             } else {
                 if ($types != 'any') {
                     $types = array('post', TribeEvents::POSTTYPE);
                 }
             }
         }
         $query->set('post_type', $types);
     }
     $types = !empty($query->query_vars['post_type']) ? (array) $query->query_vars['post_type'] : array();
     // check if any possiblity of this being an event query
     $query->tribe_is_event = in_array(TribeEvents::POSTTYPE, $types) && count($types) < 2 ? true : false;
     $query->tribe_is_multi_posttype = in_array(TribeEvents::POSTTYPE, $types) && count($types) >= 2 || in_array('any', $types) ? true : false;
     if ('default' === $query->get('eventDisplay')) {
         $query->set('eventDisplay', TribeEvents::instance()->default_view());
     }
     // check if any possiblity of this being an event category
     $query->tribe_is_event_category = !empty($query->query_vars[TribeEvents::TAXONOMY]) ? true : false;
     $query->tribe_is_event_venue = in_array(TribeEvents::VENUE_POST_TYPE, $types) ? true : false;
     $query->tribe_is_event_organizer = in_array(TribeEvents::ORGANIZER_POST_TYPE, $types) ? true : false;
     $query->tribe_is_event_query = $query->tribe_is_event || $query->tribe_is_event_category || $query->tribe_is_event_venue || $query->tribe_is_event_organizer ? true : false;
     // move along, this is not the query you are looking for
     // is the query pulling posts from the past
     if ($query->is_main_query() && !empty($_REQUEST['tribe_event_display']) && $_REQUEST['tribe_event_display'] == 'past') {
         $query->tribe_is_past = true;
     } elseif (tribe_is_ajax_view_request() && $query->get('eventDisplay') == 'past') {
         $query->tribe_is_past = true;
     } else {
         $query->tribe_is_past = isset($query->tribe_is_past) ? $query->tribe_is_past : false;
     }
     // never allow 404 on month view
     if ($query->is_main_query() && $query->get('eventDisplay') == 'month' && !$query->is_tax && !$query->tribe_is_event_category) {
         $query->is_post_type_archive = true;
         $query->queried_object = get_post_type_object(TribeEvents::POSTTYPE);
         $query->queried_object_id = 0;
     }
     // check if is_event_query === true and hook filter
     if ($query->tribe_is_event_query) {
         // fixing is_home param
         $query->is_home = !empty($query->query_vars['is_home']) ? $query->query_vars['is_home'] : false;
         do_action('tribe_events_parse_query', $query);
     }
 }

 /**
  * Media List:
  * Do the same as ^^ but for the list view.
  *
  * @param WP_Query $query
  *
  * @return array
  */
 public function media_list_table_query($query)
 {
     if (is_admin() && $query->is_main_query() && 'upload' === get_current_screen()->id) {
         $meta_query = $this->add_status_check_to_meta_query($query->get('meta_query'));
         $query->set('meta_query', $meta_query);
     }
 }

/**
 * Filter all the shop orders to remove child orders
 *
 * @param WP_Query $query
 */
function dokan_admin_shop_order_remove_parents($query)
{
    if ($query->is_main_query() && $query->query['post_type'] == 'shop_order') {
        $query->set('orderby', 'ID');
        $query->set('order', 'DESC');
    }
}

 /**
  * Conditionally add a hook on posts_results if this is the main query, a preview, and singular.
  *
  * @since 4.4.0
  *
  * @param WP_Query $query
  *
  * @return WP_Query
  */
 public function maybe_display_post($query)
 {
     if ($query->is_main_query() && $query->is_preview() && $query->is_singular()) {
         add_filter('posts_results', array($this, 'set_post_to_publish'), 10, 2);
     }
     return $query;
 }

/**
 * Integrate EP into proper queries
 * 
 * @param  WP_Query $query
 * @since  2.1
 */
function ep_admin_integrate($query)
{
    // Lets make sure this doesn't interfere with the CLI
    if (defined('WP_CLI') && WP_CLI) {
        return;
    }
    if (!$query->is_main_query()) {
        return;
    }
    /**
     * We limit to these post types to not conflict with other modules like WooCommerce
     *
     * @since  2.1
     * @var array
     */
    $post_types = array('post' => 'post', 'page' => 'page');
    $supported_post_types = apply_filters('ep_admin_supported_post_types', $post_types);
    $post_type = $query->get('post_type');
    if (empty($post_type)) {
        $post_type = 'post';
    }
    if (is_array($post_type)) {
        foreach ($post_type as $pt) {
            if (empty($supported_post_types[$pt])) {
                return;
            }
        }
        $query->set('ep_integrate', true);
    } else {
        if (!empty($supported_post_types[$post_type])) {
            $query->set('ep_integrate', true);
        }
    }
}

 /**
  * @param WP_Query $wp_query
  *
  * @return WP_Query
  */
 public function action_pre_get_posts(WP_Query $wp_query)
 {
     if (is_admin()) {
         return;
     }
     if (!empty($wp_query->query_vars['suppress_filters'])) {
         return;
     }
     # Further reading:
     # https://core.trac.wordpress.org/ticket/14589
     # https://core.trac.wordpress.org/ticket/19471
     if (!$wp_query->is_main_query()) {
         return;
     }
     if ($wp_query->is_tag()) {
         $taxomony = 'post_tag';
     } else {
         if ($wp_query->is_category()) {
             $taxomony = 'category';
         } else {
             return;
         }
     }
     $post_type = $wp_query->get('post_type');
     if (empty($post_type)) {
         $post_type = $this->post_type_support_taxomony($taxomony);
     }
     $wp_query->set('post_type', $post_type);
     return $wp_query;
 }

/**
 * Set geodir page variable in WP_Query instance.
 *
 * @since 1.0.0
 * @package GeoDirectory
 *
 * @param WP_Query $query The WP_Query instance.
 * @return WP_Query
 */
function geodir_modified_query($query)
{
    if ($query->is_main_query() && (geodir_is_page('add-listing') && isset($_REQUEST['pid']) && $_REQUEST['pid'] != '' || geodir_is_page('listing') || geodir_is_page('author') || geodir_is_page('search') || geodir_is_page('detail'))) {
        $query->set('is_geodir_loop', true);
    }
    return $query;
}

/**
 * reversing the order of posts
 *
 * @wp-hook pre_get_posts
 * @param   WP_Query $query
 * @return  WP_Query $query
 */
function cora_filter_pre_get_posts_reverse_order(WP_Query $query)
{
    if ($query->is_main_query()) {
        $query->set('order', 'ASC');
        $query->set('orderby', 'ID');
    }
    return $query;
}

/**
 * @param WP_Query $query
 */
function first_post_full_length_enable($query)
{
    if (!is_admin() && $query->is_main_query() && !$query->is_feed()) {
        // set is_feed to true, so that the post content will be used in full length
        $query->is_feed = true;
        // add a filter that sets is_feed to false again, as soon as the content from the first post was set
        add_filter('the_post', 'first_post_full_length_disable');
    }
}

/**
 * Remove the featured category on the home page main query
 * @param WP_Query $query
 * @since 1.2
 */
function pmc_eve_query_category($query)
{
    if ($query->is_home() && $query->is_main_query()) {
        $cat = get_category_by_slug('featured');
        if ($cat) {
            $query->set('cat', '-' . $cat->term_id);
        }
    }
}

 /**
  * This filter is needed to display correctly the posts with the '--- MORE ---' separator
  * in archives.
  * Without it, the post content is truncated at the beginning of <!--more-->, thus keeping
  * only the first language.
  * *
  * 'the_posts' filter is used by @see get_posts(), which is commonly used in all sorts of places,
  * including, for instance, @see wp_get_associated_nav_menu_items while deleting a post.
  * So, to minimize potential side effects, we limit the scope to main queries, or
  * when the 'wpglobus_force_filter__the_posts' is set
  * (@see WPGlobus_QA::_test_get_posts for example).
  *
  * @param array    $posts
  * @param WP_Query $query
  *
  * @return array
  * @since 1.0.14
  */
 public static function filter__the_posts($posts, &$query)
 {
     if ($query->is_main_query() || $query->get('wpglobus_force_filter__the_posts')) {
         foreach ($posts as $post) {
             WPGlobus_Core::translate_wp_post($post, WPGlobus::Config()->language, WPGlobus::RETURN_IN_DEFAULT_LANGUAGE);
         }
     }
     return $posts;
 }

 function charitable_add_user_dashboard_menu(WP_Query $query)
 {
     if (!$query->is_main_query()) {
         return;
     }
     if (!charitable_get_user_dashboard()->in_nav()) {
         return;
     }
     charitable_get_user_dashboard()->nav(array('container_class' => 'user-dashboard-menu'));
 }

 public function handle(\WP_Query $query)
 {
     if (is_admin() || !$query->is_main_query()) {
         return;
     }
     if ($query->is_home()) {
         //$query->set('posts_per_page', '10');
     }
     //$query->set( 'posts_per_page', '2' );
 }

/**
 * Prevents executing WP_Query's default queries on GlotPress requests.
 *
 * The following code effectively avoid running the main WP_Query queries by setting values before
 * they are run.
 *
 * @link http://wordpress.stackexchange.com/a/145386/40969 Original source.
 *
 * @since 1.0.0
 *
 * @param array    $request  The complete SQL query.
 * @param WP_Query $wp_query The WP_Query instance (passed by reference).
 * @return string|false False if GlotPress request, SQL query if not.
 */
function gp_abort_main_wp_query($sql, WP_Query $wp_query)
{
    if ($wp_query->is_main_query()) {
        // Prevent SELECT FOUND_ROWS() query.
        $wp_query->query_vars['no_found_rows'] = true;
        // Prevent post term and meta cache update queries.
        $wp_query->query_vars['cache_results'] = false;
        return false;
    }
    return $sql;
}