271 lines
		
	
	
		
			7.3 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			271 lines
		
	
	
		
			7.3 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * The HTML sitemap generator for terms.
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 *
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 * @since      1.0.104
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 * @package    RankMath
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 * @subpackage RankMath\Sitemap
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 * @author     Rank Math <support@rankmath.com>
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 */
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namespace RankMath\Sitemap\Html;
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use RankMath\Helper;
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use RankMath\Traits\Hooker;
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use RankMath\Admin\Database\Database;
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use RankMath\Sitemap\Sitemap as SitemapBase;
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defined( 'ABSPATH' ) || exit;
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/**
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 * Terms class.
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 */
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class Terms {
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	use Hooker;
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	/**
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	 * Get all terms from a given taxonomy.
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	 *
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	 * @param string $taxonomy Taxonomy name.
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	 * @param int    $parent   Parent term ID.
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	 *
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	 * @return array
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	 */
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	private function get_terms( $taxonomy, $parent = 0 ) {
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		$sort_map = [
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			'published'    => [
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				'field' => 'term_id',
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				'order' => 'DESC',
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			],
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			'modified'     => [
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				'field' => 'term_id',
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				'order' => 'DESC',
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			],
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			'alphabetical' => [
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				'field' => 'name',
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				'order' => 'ASC',
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			],
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			'post_id'      => [
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				'field' => 'term_id',
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				'order' => 'DESC',
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			],
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		];
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		$sort_setting = Helper::get_settings( 'sitemap.html_sitemap_sort' );
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		$sort         = ( isset( $sort_map[ $sort_setting ] ) ) ? $sort_map[ $sort_setting ] : $sort_map['published'];
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		/**
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		 * Filter: 'rank_math/sitemap/html_sitemap/sort_items' - Allow changing the sort order of the HTML sitemap.
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		 *
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		 * @var array $sort {
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		 *    @type string $field The field to sort by.
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		 *    @type string $order The sort order.
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		 * }
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		 * @var string $taxonomy The taxonomy name.
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		 * @var string $order    The item type.
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		 */
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		$sort = $this->do_filter( 'sitemap/html_sitemap/sort_items', $sort, 'terms', $taxonomy );
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		$exclude     = wp_parse_id_list( Helper::get_settings( 'sitemap.exclude_terms' ) );
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		$terms_table = Database::table( 'terms' );
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		$tt_table    = Database::table( 'term_taxonomy' );
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		$query = $terms_table->where( 'taxonomy', $taxonomy )
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			->select( [ $terms_table->table . '.term_id', 'name', 'slug', 'taxonomy' ] )
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			->leftJoin( $tt_table->table, $terms_table->table . '.term_id', $tt_table->table . '.term_id' )
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			->where( 'parent', $parent );
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		if ( ! empty( $exclude ) ) {
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			$query->whereNotIn( $terms_table->table . '.term_id', $exclude );
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		}
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		$terms = $query->orderBy( $sort['field'], $sort['order'] )->get();
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		return $this->get_indexable_terms( $terms, $taxonomy );
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	}
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	/**
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	 * Generate the HTML sitemap for a given taxonomy.
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	 *
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	 * @param string $taxonomy   Taxonomy name.
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	 * @param bool   $show_dates Whether to show dates.
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	 * @param array  $args       Array with term query arguments.
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	 *
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	 * @return string
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	 */
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	public function generate_sitemap( $taxonomy, $show_dates, $args = [] ) {
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		$terms = get_terms( $taxonomy, $args );
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		$terms = $this->get_indexable_terms( $terms, $taxonomy );
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		if ( empty( $terms ) ) {
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			return '';
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		}
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		$output[] = '<div class="rank-math-html-sitemap__section rank-math-html-sitemap__section--taxonomy rank-math-html-sitemap__section--' . $taxonomy . '">';
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		$output[] = '<h2 class="rank-math-html-sitemap__title">' . esc_html( get_taxonomy( $taxonomy )->labels->name ) . '</h2>';
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		$output[] = '<ul class="rank-math-html-sitemap__list">';
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		$output[] = $this->generate_terms_list( $terms, $taxonomy );
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		$output[] = '</ul>';
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		$output[] = '</div>';
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		$output = implode( '', $output );
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		return $output;
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	}
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	/**
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	 * Get the term list HTML.
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	 *
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	 * @param array  $terms    The terms to output.
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	 * @param object $taxonomy The taxonomy object.
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	 *
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	 * @return string
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	 */
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	private function generate_terms_list( $terms, $taxonomy ) {
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		if ( empty( $terms ) ) {
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			return '';
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		}
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		if ( is_taxonomy_hierarchical( $taxonomy ) ) {
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			return $this->generate_terms_list_hierarchical( $terms, $taxonomy );
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		}
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		return $this->generate_terms_list_flat( $terms, $taxonomy );
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	}
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	/**
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	 * Get the term list HTML for non-hierarchical taxonomies.
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	 *
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	 * @param array  $terms    The terms to output.
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	 * @param string $taxonomy Taxonomy name.
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	 *
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	 * @return string
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	 */
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	private function generate_terms_list_flat( $terms, $taxonomy ) {
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		$output = [];
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		foreach ( $terms as $term ) {
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			$output[] = '<li class="rank-math-html-sitemap__item">'
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				. '<a href="' . esc_url( $this->get_term_link( (int) $term->term_id, $taxonomy ) ) . '" class="rank-math-html-sitemap__link">'
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				. esc_html( $this->get_term_title( $term, $taxonomy ) )
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				. '</a>'
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				. '</li>';
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		}
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		return implode( '', $output );
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	}
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	/**
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	 * Get the term list HTML for hierarchical taxonomies. This will output the
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	 * terms in a nested list.
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	 *
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	 * @param array  $terms    The terms to output.
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	 * @param string $taxonomy The taxonomy name.
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	 * @param bool   $remove_children Whether to remove terms that have a parent.
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	 *
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	 * @return string
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	 */
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	private function generate_terms_list_hierarchical( $terms, $taxonomy, $remove_children = true ) {
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		$output = [];
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		if ( $remove_children ) {
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			// Remove initial with parents because they are queried below in $this->get_terms!
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			$terms = $this->remove_with_parent( $terms );
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		}
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		foreach ( $terms as $term ) {
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			$output[] = '<li class="rank-math-html-sitemap__item">'
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							. '<a href="' . esc_url( $this->get_term_link( (int) $term->term_id, $taxonomy ) ) . '" class="rank-math-html-sitemap__link">'
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							. esc_html( $this->get_term_title( $term, $taxonomy ) )
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							. '</a>';
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			$children = $this->get_terms( $taxonomy, $term->term_id );
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			if ( ! empty( $children ) ) {
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				$output[] = '<ul class="rank-math-html-sitemap__list">';
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				$output[] = $this->generate_terms_list_hierarchical( $children, $taxonomy, false );
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				$output[] = '</ul>';
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			}
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			$output[] = '</li>';
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		}
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		return implode( '', $output );
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	}
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	/**
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	 * Get the term link.
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	 *
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	 * @param int    $term_id  The term ID.
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	 * @param string $taxonomy The taxonomy name.
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	 *
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	 * @return string
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	 */
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	private function get_term_link( $term_id, $taxonomy ) {
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		$term = get_term( $term_id, $taxonomy );
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		if ( is_wp_error( $term ) ) {
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			return '';
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		}
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		return get_term_link( $term );
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	}
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	/**
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	 * Get the term title.
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	 *
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	 * @param object $term     The term data.
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	 * @param string $taxonomy The taxonomy name.
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	 *
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	 * @return string
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	 */
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	private function get_term_title( $term, $taxonomy ) {
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		if ( Helper::get_settings( 'sitemap.html_sitemap_seo_titles' ) !== 'seo_titles' ) {
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			return $term->name;
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		}
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		// Custom SEO title.
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		$meta = get_term_meta( $term->term_id, 'rank_math_title', true );
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		if ( ! empty( $meta ) ) {
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			return Helper::replace_vars( $meta, get_term( $term->term_id, $taxonomy ) );
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		}
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		// Default SEO title from the global settings.
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		$template = Helper::get_settings( "titles.tax_{$taxonomy}_title" );
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		if ( ! empty( $template ) ) {
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			return Helper::replace_vars( $template, get_term( $term->term_id, $taxonomy ) );
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		}
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		// Fallback to term name.
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		return $term->name;
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	}
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	/**
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	 * Removes terms that have a parent from the list.
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	 *
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	 * @param array $terms The terms list.
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	 *
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	 * @return array
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	 */
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	private function remove_with_parent( $terms ) {
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		return array_filter(
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			$terms,
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			function ( $term ) {
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				return ! $term->parent;
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			}
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		);
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	}
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	/**
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	 * Remove terms that are not indexable.
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	 *
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	 * @param array  $terms    Array of terms.
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	 * @param string $taxonomy Taxonomy name that `$terms` are part of.
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	 * @return array
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	 */
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	private function get_indexable_terms( $terms, $taxonomy ) {
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		return array_filter(
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			$terms,
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			function( $term ) use ( $taxonomy ) {
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				return SitemapBase::is_object_indexable( get_term( $term->term_id, $taxonomy ), 'term' );
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			}
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		);
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	}
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}
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