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<?php |
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/** |
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* Shared product search SQL filters. |
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* |
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* @package WCPOS\WooCommercePOS\API |
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*/ |
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|
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namespace WCPOS\WooCommercePOS\API; |
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|
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use WCPOS\WooCommercePOS\Services\Barcode_Field; |
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use WP_Query; |
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|
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/** |
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* Keeps v1 and v2 product search fields identical. |
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*/ |
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final class Product_Search { |
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/** |
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* Search product titles, SKUs, and the configured barcode field. |
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* |
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* @param string $search Search SQL. |
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* @param WP_Query $wp_query Query instance. |
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* @return string |
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*/ |
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public static function posts_search( string $search, WP_Query $wp_query ): string { |
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global $wpdb; |
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if ( empty( $search ) ) { |
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return $search; |
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} |
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$q = $wp_query->query_vars; |
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$n = ! empty( $q['exact'] ) ? '' : '%'; |
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$meta_fields = Barcode_Field::search_keys(); |
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$search_conditions = array(); |
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foreach ( (array) $q['search_terms'] as $term ) { |
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$term = $n . $wpdb->esc_like( $term ) . $n; |
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$search_conditions[] = $wpdb->prepare( "({$wpdb->posts}.post_title LIKE %s)", $term ); // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared -- table name is safe. |
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foreach ( $meta_fields as $field ) { |
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$search_conditions[] = $wpdb->prepare( '(pm1.meta_value LIKE %s AND pm1.meta_key = %s)', $term, $field ); |
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} |
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} |
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|
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if ( ! empty( $search_conditions ) ) { |
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$search = ' AND (' . implode( ' OR ', $search_conditions ) . ') '; |
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if ( ! is_user_logged_in() ) { |
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$search .= " AND ($wpdb->posts.post_password = '') "; |
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} |
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} |
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return $search; |
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} |
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|
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/** |
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* Join product meta while searching. |
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* |
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* @param string $join JOIN SQL. |
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* @param WP_Query $query Query instance. |
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* @return string |
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*/ |
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public static function posts_join( string $join, WP_Query $query ): string { |
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global $wpdb; |
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if ( self::is_searching( $query ) && false === strpos( $join, 'pm1' ) ) { |
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$join .= " LEFT JOIN {$wpdb->postmeta} pm1 ON {$wpdb->posts}.ID = pm1.post_id "; |
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} |
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return $join; |
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} |
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|
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/** |
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* Group product search results after joining meta. |
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* |
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* @param string $groupby GROUP BY SQL. |
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* @param WP_Query $query Query instance. |
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* @return string |
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*/ |
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public static function posts_groupby( string $groupby, WP_Query $query ): string { |
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global $wpdb; |
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if ( self::is_searching( $query ) ) { |
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$groupby = "{$wpdb->posts}.ID"; |
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} |
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return $groupby; |
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} |
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|
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/** |
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* Whether the query carries a search term. Not empty(): the literal term "0" is a search. |
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* |
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* @param WP_Query $query Query instance. |
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* @return bool |
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*/ |
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private static function is_searching( WP_Query $query ): bool { |
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return isset( $query->query_vars['s'] ) && '' !== (string) $query->query_vars['s']; |
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} |
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} |
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