Ticket #19198: 19198.4.diff

tests/phpunit/tests/query/results.php

@@ -369 +369 @@
                         'child-two',
                 ), wp_list_pluck( $posts, 'post_title' ) );
         }
+
+        function test_exlude_from_search_empty() {
+                global $wp_post_types;
+                foreach ( array_keys( $wp_post_types ) as $slug )
+                        $wp_post_types[$slug]->exclude_from_search = true;
+
+                $posts = $this->q->query( array( 'post_type' => 'any' ) );
+
+                $this->assertEmpty( $posts );
+                $this->assertRegExp( '#AND 1=0#', $this->q->request );
+
+                foreach ( array_keys( $wp_post_types ) as $slug )
+                        $wp_post_types[$slug]->exclude_from_search = false;
+
+                $posts2 = $this->q->query( array( 'post_type' => 'any' ) );
+
+                $this->assertNotEmpty( $posts2 );
+                $this->assertNotRegExp( '#AND 1=0#', $this->q->request );
+        }
 }

src/wp-includes/query.php

@@ -2455 +2455 @@
 
                 if ( 'any' == $post_type ) {
                         $in_search_post_types = get_post_types( array('exclude_from_search' => false) );
-                        if ( ! empty( $in_search_post_types ) )
+                        if ( empty( $in_search_post_types ) )
+                                $where .= ' AND 1=0 ';
+                        else    
                                 $where .= " AND $wpdb->posts.post_type IN ('" . join("', '", $in_search_post_types ) . "')";
                 } elseif ( !empty( $post_type ) && is_array( $post_type ) ) {
                         $where .= " AND $wpdb->posts.post_type IN ('" . join("', '", $post_type) . "')";