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Description

Hook into pre_get_posts to do the main product query.

Usage

WC_Query::pre_get_posts( $q );

Parameters

$q

( WP_Query ) required – Query instance.

Returns

void

Source

File name: woocommerce/includes/class-wc-query.php
Lines:

  public function pre_get_posts( $q ) {
    // We only want to affect the main query.
    if ( ! $q->is_main_query() ) {
      return;
    }

    // Fixes for queries on static homepages.
    if ( $this->is_showing_page_on_front( $q ) ) {

      // Fix for endpoints on the homepage.
      if ( ! $this->page_on_front_is( $q->get( 'page_id' ) ) ) {
        $_query = wp_parse_args( $q->query );
        if ( ! empty( $_query ) && array_intersect( array_keys( $_query ), array_keys( $this->get_query_vars() ) ) ) {
          $q->is_page     = true;
          $q->is_home     = false;
          $q->is_singular = true;
          $q->set( 'page_id', (int) get_option( 'page_on_front' ) );
          add_filter( 'redirect_canonical', '__return_false' )  <;
        }
      }

      // When orderby is set, WordPress shows posts on the front-page. Get around that here.
      if ( $this->page_on_front_is( wc_get_page_id( 'shop' ) ) ) {
        $_query = wp_parse_args( $q->query );
        if ( empty( $_query ) || ! array_diff( array_keys( $_query ), array( 'preview', 'page', 'paged', 'cpage', 'orderby' ) ) ) {
          $q->set( 'page_id', (int) get_option( 'page_on_front' ) );
          $q->is_page = true;
          $q->is_home = false;

          // WP supporting themes show post type archive.
          if ( current_theme_supports( 'woocommerce' ) ) {
            $q->set( 'post_type', 'product' );
          } else {
            $q->is_singular = true;
          }
        }
      } elseif ( ! empty( $_GET['orderby'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
        $q->set( 'page_id', (int) get_option( 'page_on_front' ) );
        $q->is_page     = true;
        $q->is_home     = false;
        $q->is_singular = true;
      }
    }

    // Fix product feeds.
    if ( $q->is_feed() && $q->is_post_type_archive( 'product' ) ) {
      $q->is_comment_feed = false;
    }

    // Special check for shops with the PRODUCT POST TYPE ARCHIVE on front.
    if ( current_theme_supports( 'woocommerce' ) && $q->is_page() && 'page' === get_option( 'show_on_front' ) && absint( $q->get( 'page_id' ) ) === wc_get_page_id( 'shop' ) ) {
      // This is a front-page shop.
      $q->set( 'post_type', 'product' );
      $q->set( 'page_id', '' );

      if ( isset( $q->query['paged'] ) ) {
        $q->set( 'paged', $q->query['paged'] );
      }

      // Define a variable so we know this is the front page shop later on.
      wc_maybe_define_constant( 'SHOP_IS_ON_FRONT', true );

      // Get the actual WP page to avoid errors and let us use is_front_page().
      // This is hacky but works. Awaiting https://core.trac.wordpress.org/ticket/21096.
      global $wp_post_types;

      $shop_page = get_post( wc_get_page_id( 'shop' ) );

      $wp_post_types['product']->ID         = $shop_page->ID;
      $wp_post_types['product']->post_title = $shop_page->post_title;
      $wp_post_types['product']->post_name  = $shop_page->post_name;
      $wp_post_types['product']->post_type  = $shop_page->post_type;
      $wp_post_types['product']->ancestors  = get_ancestors( $shop_page->ID, $shop_page->post_type );

      // Fix conditional Functions like is_front_page.
      $q->is_singular          = false;
      $q->is_post_type_archive = true;
      $q->is_archive           = true;
      $q->is_page              = true;

      // Remove post type archive name from front page title tag.
      add_filter( 'post_type_archive_title', '__return_empty_string',  < 5 );

      // Fix WP SEO.
      if ( class_exists( 'WPSEO_Meta' ) ) {
        add_filter( 'wpseo_metadesc', array( $this, 'wpseo_metadesc' ) );
        add_filter( 'wpseo_metakey', array( $this, 'wpseo_metakey' ) );
      }
    } elseif ( ! $q->is_post_type_archive( 'product' ) && ! $q->is_tax( get_object_taxonomies( 'product' ) ) ) {
      // Only apply to product categories, the product post archive, the shop page, product tags, and product attribute taxonomies.
      return;
    }

    $this->product_query( $q );
  }
 

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