Eliminated obsolete RequestParseErrorException.

module/VuFind/src/VuFind/Controller/AbstractSearch.php

@@ -234,17 +234,19 @@ class AbstractSearch extends AbstractBase
             if ($this->resultScrollerActive()) {
                 $this->resultScroller()->init($results);
             }
-        } catch (\VuFindSearch\Backend\Exception\RequestParseErrorException $e) {
-            // If it's a parse error or the user specified an invalid field, we
-            // should display an appropriate message:
-            $view->parseError = true;
-
-            // We need to create and process an "empty results" object to
-            // ensure that recommendation modules and templates behave
-            // properly when displaying the error message.
-            $view->results = $this->getResultsManager()->get('EmptySet');
-            $view->results->setParams($params);
-            $view->results->performAndProcessSearch();
+        } catch (\VuFindSearch\Backend\Exception\BackendException $e) {
+            if ($e->hasTag('VuFind\Search\ParserError')) {
+                // If it's a parse error or the user specified an invalid field, we
+                // should display an appropriate message:
+                $view->parseError = true;
+
+                // We need to create and process an "empty results" object to
+                // ensure that recommendation modules and templates behave
+                // properly when displaying the error message.
+                $view->results = $this->getResultsManager()->get('EmptySet');
+                $view->results->setParams($params);
+                $view->results->performAndProcessSearch();
+            }
         }
         // Save statistics:
         if ($this->logStatistics) {

module/VuFindSearch/src/VuFindSearch/Backend/Exception/RequestParseErrorException.php

-<?php
-
-/**
- * RequestParseErrorException.
- *
- * PHP version 5
- *
- * Copyright (C) Villanova University 2010.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- * @category VuFind2
- * @package  Search
- * @author   David Maus <maus@hab.de>
- * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
- * @link     http://vufind.org
- */
-
-namespace VuFindSearch\Backend\Exception;
-
-/**
- * RequestParseErrorException.
- *
- * Signals an error parsing the syntax of the user-supplied search criteria.
- *
- * @category VuFind2
- * @package  Search
- * @author   David Maus <maus@hab.de>
- * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
- * @link     http://vufind.org
- */
-class RequestParseErrorException extends RequestErrorException
-{
-}