Ticket #20044: 20044.4.diff

src/wp-includes/query.php

@@ -1973 +1973 @@
                         }
                 }
 
+                /**
+                 * Filter the fields used when searching the posts table.
+                 *
+                 * By default, a search on the posts table will use post_title and
+                 * post_content. This filter is available to expand that search to
+                 * other applicable fields.
+                 *
+                 * Allowed fields are post_content, post_title, post_excerpt, and post_name.
+                 *
+                 * @since 3.9.0
+                 *
+                 * @param array $fields Fields from a list of allowed search fields.
+                 */
+                $fields = apply_filters( 'query_search_fields', array( 'post_title', 'post_content' ) );
+                $allowed_search_fields = array( 'post_content', 'post_title', 'post_excerpt', 'post_name' );
+                $or = array();
+                foreach( (array) $fields as $field ) {
+                        if ( in_array( $field, $allowed_search_fields ) ) {
+                                $or[] = "( $wpdb->posts.$field" . ' LIKE \'%1$s\')';
+                        }
+                }
+                $conditions = join( ' OR ', $or );
+
                 $n = ! empty( $q['exact'] ) ? '' : '%';
                 $searchand = '';
                 $q['search_orderby_title'] = array();
                 foreach ( $q['search_terms'] as $term ) {
                         $term = like_escape( esc_sql( $term ) );
-                        if ( $n )
+                        if ( $n ) {
                                 $q['search_orderby_title'][] = "$wpdb->posts.post_title LIKE '%$term%'";
-
-                        $search .= "{$searchand}(($wpdb->posts.post_title LIKE '{$n}{$term}{$n}') OR ($wpdb->posts.post_content LIKE '{$n}{$term}{$n}'))";
+                        }
+                        $search .= "{$searchand}(" . sprintf( $conditions, "{$n}{$term}{$n}" ) . ")";
                         $searchand = ' AND ';
                 }
 

tests/phpunit/tests/query/search.php

@@ +1 @@
+<?php
+/**
+ * Search functionality
+ *
+ * @group query
+ * @group search
+ */
+class Tests_Query_Search extends WP_UnitTestCase {
+
+        function test_search_by_fields() {
+                $post_id = $this->factory->post->create( array( 'post_title' => 'Taco', 'post_name' => 'burrito', 'post_content' => 'Enchilada', 'post_excerpt' => 'Torta' ) );
+
+                // post title
+                $q1 = new WP_Query( array( 's' => 'taco', 'fields' => 'ids' ) );
+                $this->assertEquals( array( $post_id ), $q1->posts );
+
+                // post content
+                $q2 = new WP_Query( array( 's' => 'enchilada', 'fields' => 'ids' ) );
+                $this->assertEquals( array( $post_id ), $q2->posts );
+
+                // post slug
+                $q3 = new WP_Query( array( 's' => 'Burrito', 'fields' => 'ids' ) );
+                $this->assertEquals( array(), $q3->posts );
+
+                // post excerpt
+                $q4 = new WP_Query( array( 's' => 'Torta', 'fields' => 'ids' ) );
+                $this->assertEquals( array(), $q4->posts );
+
+                add_filter( 'query_search_fields', array( $this, 'filter_query_search_fields' ) );
+                $q5 = new WP_Query( array( 's' => 'Burrito', 'fields' => 'ids' ) );
+                $this->assertEquals( array( $post_id ), $q5->posts );
+
+                $q6 = new WP_Query( array( 's' => 'Torta', 'fields' => 'ids' ) );
+                $this->assertEquals( array( $post_id ), $q6->posts );
+                remove_filter( 'query_search_fields', array( $this, 'filter_query_search_fields' ) );
+        }
+
+        function filter_query_search_fields( $fields ) {
+                $fields[] = "post_name";
+                $fields[] = "post_excerpt";
+                return $fields;
+        }
+}
+ No newline at end of file