Erikmitk / kitodo-presentation

Classes/Controller/ListViewController.php

Upper-Lower-Casing +4 added lines, -4 removed lines

@@ -72,7 +72,7 @@ 
     {
         $this->searchParams = $this->getParametersSafely('searchParameter');
 
-        $collection = null;
+        $collection = NULL;
         if ($this->searchParams['collection'] && MathUtility::canBeInterpretedAsInteger($this->searchParams['collection'])) {
             $collection = $this->collectionRepository->findByUid($this->searchParams['collection']);
         }
@@ -83,15 +83,15 @@ 
         }
 
         // get all sortable metadata records
-        $sortableMetadata = $this->metadataRepository->findByIsSortable(true);
+        $sortableMetadata = $this->metadataRepository->findByIsSortable(TRUE);
 
         // get all metadata records to be shown in results
-        $listedMetadata = $this->metadataRepository->findByIsListed(true);
+        $listedMetadata = $this->metadataRepository->findByIsListed(TRUE);
 
         $solrResults = [];
         $numResults = 0;
         if (is_array($this->searchParams) && !empty($this->searchParams)) {
-            $solrResults = $this->documentRepository->findSolrByCollection($collection ? : null, $this->settings, $this->searchParams, $listedMetadata);
+            $solrResults = $this->documentRepository->findSolrByCollection($collection ? : NULL, $this->settings, $this->searchParams, $listedMetadata);
             $numResults = $solrResults->getNumFound();
         }
 

Classes/Controller/NavigationController.php

Upper-Lower-Casing +3 added lines, -3 removed lines

@@ -35,8 +35,8 @@ 
         // Load current document.
         $this->loadDocument($this->requestData);
         if (
-            $this->document === null
-            || $this->document->getDoc() === null
+            $this->document === NULL
+            || $this->document->getDoc() === NULL
         ) {
             // Quit without doing anything if required variables are not set.
             return '';
@@ -81,7 +81,7 @@ 
         // prepare feature array for fluid
         $features = [];
         foreach (explode(',', $this->settings['features']) as $feature) {
-            $features[$feature] = true;
+            $features[$feature] = TRUE;
         }
         $this->view->assign('features', $features);
     }

Classes/Controller/TableOfContentsController.php

Upper-Lower-Casing +8 added lines, -8 removed lines

@@ -44,7 +44,7 @@ 
      *
      * @return array HMENU array for menu entry
      */
-    protected function getMenuEntry(array $entry, $recursive = false)
+    protected function getMenuEntry(array $entry, $recursive = FALSE)
     {
         $entry = $this->resolveMenuEntry($entry);
 
@@ -102,7 +102,7 @@ 
         }
         // Build sub-menu if available and called recursively.
         if (
-            $recursive === true
+            $recursive === TRUE
             && !empty($entry['children'])
         ) {
             // Build sub-menu only if one of the following conditions apply:
@@ -120,7 +120,7 @@ 
                     if (in_array($child['id'], $this->activeEntries)) {
                         $entryArray['ITEM_STATE'] = 'ACT';
                     }
-                    $entryArray['_SUB_MENU'][] = $this->getMenuEntry($child, true);
+                    $entryArray['_SUB_MENU'][] = $this->getMenuEntry($child, TRUE);
                 }
             }
             // Append "IFSUB" to "ITEM_STATE" if this entry has sub-entries.
@@ -177,8 +177,8 @@ 
         // Load current document.
         $this->loadDocument($this->requestData);
         if (
-            $this->document === null
-            || $this->document->getDoc() === null
+            $this->document === NULL
+            || $this->document->getDoc() === NULL
         ) {
             // Quit without doing anything if required variables are not set.
             return [];
@@ -225,12 +225,12 @@ 
             }
             // Go through table of contents and create all menu entries.
             foreach ($this->document->getDoc()->tableOfContents as $entry) {
-                $menuArray[] = $this->getMenuEntry($entry, true);
+                $menuArray[] = $this->getMenuEntry($entry, TRUE);
             }
         } else {
             // Go through table of contents and create top-level menu entries.
             foreach ($this->document->getDoc()->tableOfContents as $entry) {
-                $menuArray[] = $this->getMenuEntry($entry, false);
+                $menuArray[] = $this->getMenuEntry($entry, FALSE);
             }
             // Build table of contents from database.
             $result = $this->documentRepository->getTableOfContentsFromDb($this->document->getUid(), $this->document->getPid(), $this->settings);
@@ -249,7 +249,7 @@ 
                         'pagination' => '',
                         'targetUid' => $resArray['uid']
                     ];
-                    $menuArray[0]['_SUB_MENU'][] = $this->getMenuEntry($entry, false);
+                    $menuArray[0]['_SUB_MENU'][] = $this->getMenuEntry($entry, FALSE);
                 }
             }
         }

Classes/Controller/CalendarController.php

Upper-Lower-Casing +7 added lines, -7 removed lines

@@ -63,7 +63,7 @@ 
 
         // Load current document.
         $this->loadDocument($this->requestData);
-        if ($this->document === null) {
+        if ($this->document === NULL) {
             // Quit without doing anything if required variables are not set.
             return '';
         }
@@ -78,10 +78,10 @@ 
         switch ($type) {
             case 'newspaper':
             case 'ephemera':
-                $this->forward('years', null, null, $this->requestData);
+                $this->forward('years', NULL, NULL, $this->requestData);
                 break;
             case 'year':
-                $this->forward('calendar', null, null, $this->requestData);
+                $this->forward('calendar', NULL, NULL, $this->requestData);
                 break;
             case 'issue':
             default:
@@ -110,7 +110,7 @@ 
 
         // Load current document.
         $this->loadDocument($this->requestData);
-        if ($this->document === null) {
+        if ($this->document === NULL) {
             // Quit without doing anything if required variables are not set.
             return '';
         }
@@ -127,7 +127,7 @@ 
                 $title = $document->getTitle();
             } else {
                 $title = !empty($document->getMetsLabel()) ? $document->getMetsLabel() : $document->getMetsOrderlabel();
-                if (strtotime($title) !== false) {
+                if (strtotime($title) !== FALSE) {
                     $title = strftime('%x', strtotime($title));
                 }
             }
@@ -142,7 +142,7 @@ 
         $calendarIssuesByYear = [];
         foreach ($issues as $issue) {
             $dateTimestamp = strtotime($issue['year']);
-            if ($dateTimestamp !== false) {
+            if ($dateTimestamp !== FALSE) {
                 $_year = date('Y', $dateTimestamp);
                 $_month = date('n', $dateTimestamp);
                 $_day = date('j', $dateTimestamp);
@@ -216,7 +216,7 @@ 
 
         // Load current document.
         $this->loadDocument($this->requestData);
-        if ($this->document === null) {
+        if ($this->document === NULL) {
             // Quit without doing anything if required variables are not set.
             return '';
         }

Classes/Controller/CollectionController.php

Upper-Lower-Casing +6 added lines, -6 removed lines

@@ -87,7 +87,7 @@ 
         }
 
         if (count($collections) == 1 && empty($this->settings['dont_show_single']) && is_array($collections)) {
-            $this->forward('show', null, null, ['collection' => array_pop($collections)]);
+            $this->forward('show', NULL, NULL, ['collection' => array_pop($collections)]);
         }
 
         $processedCollections = [];
@@ -166,7 +166,7 @@ 
         $searchParams['collection'] = $collection;
         // If a targetPid is given, the results will be shown by ListView on the target page.
         if (!empty($this->settings['targetPid'])) {
-            $this->redirect('main', 'ListView', null,
+            $this->redirect('main', 'ListView', NULL,
                 [
                     'searchParameter' => $searchParams,
                     'widgetPage' => $widgetPage
@@ -175,10 +175,10 @@ 
         }
 
         // get all metadata records to be shown in results
-        $listedMetadata = $this->metadataRepository->findByIsListed(true);
+        $listedMetadata = $this->metadataRepository->findByIsListed(TRUE);
 
         // get all sortable metadata records
-        $sortableMetadata = $this->metadataRepository->findByIsSortable(true);
+        $sortableMetadata = $this->metadataRepository->findByIsSortable(TRUE);
 
         // get all documents of given collection
         $solrResults = $this->documentRepository->findSolrByCollection($collection, $this->settings, $searchParams, $listedMetadata);
@@ -204,13 +204,13 @@ 
         // if search was triggered, get search parameters from POST variables
         $searchParams = $this->getParametersSafely('searchParameter');
 
-        $collection = null;
+        $collection = NULL;
         if ($searchParams['collection']['__identity'] && MathUtility::canBeInterpretedAsInteger($searchParams['collection']['__identity'])) {
             $collection = $this->collectionRepository->findByUid($searchParams['collection']['__identity']);
         }
 
         // output is done by show action
-        $this->forward('show', null, null, ['searchParameter' => $searchParams, 'collection' => $collection]);
+        $this->forward('show', NULL, NULL, ['searchParameter' => $searchParams, 'collection' => $collection]);
 
     }
 }

Classes/Controller/View3DController.php

Upper-Lower-Casing +2 added lines, -2 removed lines

@@ -32,8 +32,8 @@
         // Load current document.
         $this->loadDocument($this->requestData);
         if (
-            $this->document === null
-            || $this->document->getDoc() === null
+            $this->document === NULL
+            || $this->document->getDoc() === NULL
             || $this->document->getDoc()->metadataArray['LOG_0001']['type'][0] != 'object'
         ) {
             // Quit without doing anything if required variables are not set.

Classes/Controller/SearchController.php

Upper-Lower-Casing +11 added lines, -11 removed lines

@@ -77,7 +77,7 @@ 
         $this->searchParams = $this->getParametersSafely('searchParameter');
 
         // output is done by main action
-        $this->forward('main', null, null, ['searchParameter' => $this->searchParams]);
+        $this->forward('main', NULL, NULL, ['searchParameter' => $this->searchParams]);
     }
 
     /**
@@ -89,7 +89,7 @@ 
      */
     public function mainAction()
     {
-        $listViewSearch = false;
+        $listViewSearch = FALSE;
         // Quit without doing anything if required variables are not set.
         if (empty($this->settings['solrcore'])) {
             $this->logger->warning('Incomplete plugin configuration');
@@ -103,7 +103,7 @@ 
 
         if (isset($listRequestData['searchParameter']) && is_array($listRequestData['searchParameter'])) {
             $this->searchParams = array_merge($this->searchParams ? : [], $listRequestData['searchParameter']);
-            $listViewSearch = true;
+            $listViewSearch = TRUE;
         }
 
         // Pagination of Results: Pass the currentPage to the fluid template to calculate current index of search result.
@@ -114,7 +114,7 @@ 
 
         // If a targetPid is given, the results will be shown by ListView on the target page.
         if (!empty($this->settings['targetPid']) && !empty($this->searchParams) && !$listViewSearch) {
-            $this->redirect('main', 'ListView', null,
+            $this->redirect('main', 'ListView', NULL,
                 [
                     'searchParameter' => $this->searchParams,
                     'widgetPage' => $widgetPage
@@ -125,16 +125,16 @@ 
         // If no search has been executed, no variables habe to be prepared. An empty form will be shown.
         if (is_array($this->searchParams) && !empty($this->searchParams)) {
             // get all sortable metadata records
-            $sortableMetadata = $this->metadataRepository->findByIsSortable(true);
+            $sortableMetadata = $this->metadataRepository->findByIsSortable(TRUE);
 
             // get all metadata records to be shown in results
-            $listedMetadata = $this->metadataRepository->findByIsListed(true);
+            $listedMetadata = $this->metadataRepository->findByIsListed(TRUE);
 
             $solrResults = [];
             $numResults = 0;
             // Do not execute the Solr search if used together with ListView plugin.
             if (!$listViewSearch) {
-                $solrResults = $this->documentRepository->findSolrByCollection(null, $this->settings, $this->searchParams, $listedMetadata);
+                $solrResults = $this->documentRepository->findSolrByCollection(NULL, $this->settings, $this->searchParams, $listedMetadata);
                 $numResults = $solrResults->getNumFound();
             }
 
@@ -183,7 +183,7 @@ 
 
         // Get facets from plugin configuration.
         $facets = [];
-        foreach (GeneralUtility::trimExplode(',', $this->settings['facets'], true) as $facet) {
+        foreach (GeneralUtility::trimExplode(',', $this->settings['facets'], TRUE) as $facet) {
             $facets[$facet . '_faceting'] = Helper::translate($facet, 'tx_dlf_metadata', $this->settings['storagePid']);
         }
 
@@ -384,7 +384,7 @@ 
         // Check if facet is already selected.
         $queryColumn = array_column($search['params']['filterquery'], 'query');
         $index = array_search($field . ':("' . Solr::escapeQuery($value) . '")', $queryColumn);
-        if ($index !== false) {
+        if ($index !== FALSE) {
             // Facet is selected, thus remove it from filter.
             unset($queryColumn[$index]);
             $queryColumn = array_values($queryColumn);
@@ -392,7 +392,7 @@ 
             $state = 'ACTIFSUB';
             // Reset facets
             if ($this->settings['resetFacets']) {
-                $entryArray['resetFacet'] = true;
+                $entryArray['resetFacet'] = TRUE;
                 $entryArray['queryColumn'] = $queryColumn;
             }
         } else {
@@ -423,7 +423,7 @@ 
         }
 
         // Get field selector options.
-        $searchFields = GeneralUtility::trimExplode(',', $this->settings['extendedFields'], true);
+        $searchFields = GeneralUtility::trimExplode(',', $this->settings['extendedFields'], TRUE);
 
         $slotCountArray = [];
         for ($i = 0; $i < $this->settings['extendedSlotCount']; $i++) {

Classes/Common/MetsDocument.php

Upper-Lower-Casing +32 added lines, -32 removed lines

@@ -95,7 +95,7 @@ 
      * @var bool
      * @access protected
      */
-    protected $mdSecLoaded = false;
+    protected $mdSecLoaded = FALSE;
 
     /**
      * Subset of $mdSec storing only the dmdSec entries; kept for compatibility.
@@ -129,7 +129,7 @@ 
      * @var bool
      * @access protected
      */
-    protected $fileGrpsLoaded = false;
+    protected $fileGrpsLoaded = FALSE;
 
     /**
      * Additional information about files (e.g., ADMID), indexed by ID.
@@ -223,11 +223,11 @@ 
             IiifHelper::setMaxThumbnailHeight($conf['iiifThumbnailHeight']);
             IiifHelper::setMaxThumbnailWidth($conf['iiifThumbnailWidth']);
             $service = IiifHelper::loadIiifResource($fileLocation);
-            if ($service !== null && $service instanceof AbstractImageService) {
+            if ($service !== NULL && $service instanceof AbstractImageService) {
                 return $service->getImageUrl();
             }
         } elseif ($fileMimeType === 'application/vnd.netfpx') {
-            $baseURL = $fileLocation . (strpos($fileLocation, '?') === false ? '?' : '');
+            $baseURL = $fileLocation . (strpos($fileLocation, '?') === FALSE ? '?' : '');
             // TODO CVT is an optional IIP server capability; in theory, capabilities should be determined in the object request with '&obj=IIP-server'
             return $baseURL . '&CVT=jpeg';
         }
@@ -274,7 +274,7 @@ 
      * {@inheritDoc}
      * @see \Kitodo\Dlf\Common\Doc::getLogicalStructure()
      */
-    public function getLogicalStructure($id, $recursive = false)
+    public function getLogicalStructure($id, $recursive = FALSE)
     {
         $details = [];
         // Is the requested logical unit already loaded?
@@ -315,7 +315,7 @@ 
      *
      * @return array Array of the element's id, label, type and physical page indexes/mptr link
      */
-    protected function getLogicalStructureInfo(\SimpleXMLElement $structure, $recursive = false)
+    protected function getLogicalStructureInfo(\SimpleXMLElement $structure, $recursive = FALSE)
     {
         // Get attributes.
         foreach ($structure->attributes() as $attribute => $value) {
@@ -361,7 +361,7 @@ 
             && array_key_exists($details['id'], $this->smLinks['l2p'])
         ) {
             // Link logical structure to the first corresponding physical page/track.
-            $details['points'] = max(intval(array_search($this->smLinks['l2p'][$details['id']][0], $this->physicalStructure, true)), 1);
+            $details['points'] = max(intval(array_search($this->smLinks['l2p'][$details['id']][0], $this->physicalStructure, TRUE)), 1);
             $fileGrpsThumb = GeneralUtility::trimExplode(',', $extConf['fileGrpThumbs']);
             while ($fileGrpThumb = array_shift($fileGrpsThumb)) {
                 if (!empty($this->physicalStructureInfo[$this->smLinks['l2p'][$details['id']][0]]['files'][$fileGrpThumb])) {
@@ -405,7 +405,7 @@ 
             $details['children'] = [];
             foreach ($structure->children('http://www.loc.gov/METS/')->div as $child) {
                 // Repeat for all children.
-                $details['children'][] = $this->getLogicalStructureInfo($child, true);
+                $details['children'][] = $this->getLogicalStructureInfo($child, TRUE);
             }
         }
         return $details;
@@ -634,7 +634,7 @@ 
                 }
             }
 
-            $hasMetadataSection[$mdSectionType] = true;
+            $hasMetadataSection[$mdSectionType] = TRUE;
         }
         // Set title to empty string if not present.
         if (empty($metadata['title'][0])) {
@@ -765,16 +765,16 @@ 
     protected function loadLocation($location)
     {
         $fileResource = Helper::getUrl($location);
-        if ($fileResource !== false) {
+        if ($fileResource !== FALSE) {
             $xml = Helper::getXmlFileAsString($fileResource);
             // Set some basic properties.
-            if ($xml !== false) {
+            if ($xml !== FALSE) {
                 $this->xml = $xml;
-                return true;
+                return TRUE;
             }
         }
         $this->logger->error('Could not load XML file from "' . $location . '"');
-        return false;
+        return FALSE;
     }
 
     /**
@@ -798,9 +798,9 @@ 
 
         if ($preloadedDocument instanceof \SimpleXMLElement) {
             $this->xml = $preloadedDocument;
-            return true;
+            return TRUE;
         }
-        return false;
+        return FALSE;
     }
 
     /**
@@ -827,7 +827,7 @@ 
             foreach ($this->mets->xpath('./mets:dmdSec') as $dmdSecTag) {
                 $dmdSec = $this->processMdSec($dmdSecTag);
 
-                if ($dmdSec !== null) {
+                if ($dmdSec !== NULL) {
                     $this->mdSec[$dmdSec['id']] = $dmdSec;
                     $this->dmdSec[$dmdSec['id']] = $dmdSec;
                 }
@@ -844,7 +844,7 @@ 
                     // TODO: Should we check that the format may occur within this type (e.g., to ignore VIDEOMD within rightsMD)?
                     $mdSec = $this->processMdSec($mdSecTag);
 
-                    if ($mdSec !== null) {
+                    if ($mdSec !== NULL) {
                         $this->mdSec[$mdSec['id']] = $mdSec;
 
                         $childIds[] = $mdSec['id'];
@@ -857,7 +857,7 @@ 
                 }
             }
 
-            $this->mdSecLoaded = true;
+            $this->mdSecLoaded = TRUE;
         }
         return $this->mdSec;
     }
@@ -881,7 +881,7 @@ 
     {
         $mdId = (string) $element->attributes()->ID;
         if (empty($mdId)) {
-            return null;
+            return NULL;
         }
 
         $this->registerNamespaces($element);
@@ -898,7 +898,7 @@ 
         }
 
         if (empty($xml)) {
-            return null;
+            return NULL;
         }
 
         $this->registerNamespaces($xml[0]);
@@ -959,9 +959,9 @@ 
                 !empty($extConf['fileGrpFulltext'])
                 && array_intersect(GeneralUtility::trimExplode(',', $extConf['fileGrpFulltext']), $this->fileGrps) !== []
             ) {
-                $this->hasFulltext = true;
+                $this->hasFulltext = TRUE;
             }
-            $this->fileGrpsLoaded = true;
+            $this->fileGrpsLoaded = TRUE;
         }
         return $this->fileGrps;
     }
@@ -1063,7 +1063,7 @@ 
                     $this->physicalStructure = array_merge($physSeq, $elements);
                 }
             }
-            $this->physicalStructureLoaded = true;
+            $this->physicalStructureLoaded = TRUE;
         }
         return $this->physicalStructure;
     }
@@ -1082,7 +1082,7 @@ 
                     $this->smLinks['p2l'][(string) $smLink->attributes('http://www.w3.org/1999/xlink')->to][] = (string) $smLink->attributes('http://www.w3.org/1999/xlink')->from;
                 }
             }
-            $this->smLinksLoaded = true;
+            $this->smLinksLoaded = TRUE;
         }
         return $this->smLinks;
     }
@@ -1091,7 +1091,7 @@ 
      * {@inheritDoc}
      * @see \Kitodo\Dlf\Common\Doc::_getThumbnail()
      */
-    protected function _getThumbnail($forceReload = false)
+    protected function _getThumbnail($forceReload = FALSE)
     {
         if (
             !$this->thumbnailLoaded
@@ -1101,14 +1101,14 @@ 
             $cPid = ($this->cPid ? $this->cPid : $this->pid);
             if (!$cPid) {
                 $this->logger->error('Invalid PID ' . $cPid . ' for structure definitions');
-                $this->thumbnailLoaded = true;
+                $this->thumbnailLoaded = TRUE;
                 return $this->thumbnail;
             }
             // Load extension configuration.
             $extConf = GeneralUtility::makeInstance(ExtensionConfiguration::class)->get(self::$extKey);
             if (empty($extConf['fileGrpThumbs'])) {
                 $this->logger->warning('No fileGrp for thumbnails specified');
-                $this->thumbnailLoaded = true;
+                $this->thumbnailLoaded = TRUE;
                 return $this->thumbnail;
             }
             $strctId = $this->_getToplevelId();
@@ -1162,7 +1162,7 @@ 
             } else {
                 $this->logger->error('No structure of type "' . $metadata['type'][0] . '" found in database');
             }
-            $this->thumbnailLoaded = true;
+            $this->thumbnailLoaded = TRUE;
         }
         return $this->thumbnail;
     }
@@ -1203,7 +1203,7 @@ 
      */
     public function _getParentHref()
     {
-        if ($this->parentHref === null) {
+        if ($this->parentHref === NULL) {
             $this->parentHref = '';
 
             // Get the closest ancestor of the current document which has a MPTR child.
@@ -1241,8 +1241,8 @@ 
     public function __toString()
     {
         $xml = new \DOMDocument('1.0', 'utf-8');
-        $xml->appendChild($xml->importNode(dom_import_simplexml($this->mets), true));
-        $xml->formatOutput = true;
+        $xml->appendChild($xml->importNode(dom_import_simplexml($this->mets), TRUE));
+        $xml->formatOutput = TRUE;
         return $xml->saveXML();
     }
 
@@ -1257,7 +1257,7 @@ 
     public function __wakeup()
     {
         $xml = Helper::getXmlFileAsString($this->asXML);
-        if ($xml !== false) {
+        if ($xml !== FALSE) {
             $this->asXML = '';
             $this->xml = $xml;
             // Rebuild the unserializable properties.

Classes/Common/SolrSearch.php

Upper-Lower-Casing +22 added lines, -22 removed lines

@@ -33,7 +33,7 @@ 
      * @param array $searchParams
      * @param QueryResult $listedMetadata
      */
-    public function __construct($documentRepository, $collection, $settings, $searchParams, $listedMetadata = null)
+    public function __construct($documentRepository, $collection, $settings, $searchParams, $listedMetadata = NULL)
     {
         $this->documentRepository = $documentRepository;
         $this->collection = $collection;
@@ -49,7 +49,7 @@ 
 
     public function count()
     {
-        if ($this->result === null) {
+        if ($this->result === NULL) {
             return 0;
         }
 
@@ -90,9 +90,9 @@ 
     public function offsetGet($offset)
     {
         $idx = $this->result['document_keys'][$offset];
-        $document = $this->result['documents'][$idx] ?? null;
+        $document = $this->result['documents'][$idx] ?? NULL;
 
-        if ($document !== null) {
+        if ($document !== NULL) {
             // It may happen that a Solr group only includes non-toplevel results,
             // in which case metadata of toplevel entry isn't yet filled.
             if (empty($document['metadata'])) {
@@ -106,7 +106,7 @@ 
 
             // get title of parent/grandparent/... if empty
             if (empty($document['title']) && $document['partOf'] > 0) {
-                $superiorTitle = Doc::getTitle($document['partOf'], true);
+                $superiorTitle = Doc::getTitle($document['partOf'], TRUE);
                 if (!empty($superiorTitle)) {
                     $document['title'] = '[' . $superiorTitle . ']';
                 }
@@ -179,7 +179,7 @@ 
             if (!empty($this->searchParams['query'])) {
                 $query = $fields['fulltext'] . ':(' . Solr::escapeQuery(trim($this->searchParams['query'])) . ')';
             }
-            $params['fulltext'] = true;
+            $params['fulltext'] = TRUE;
         } else {
             // Retain given search field if valid.
             if (!empty($this->searchParams['query'])) {
@@ -282,17 +282,17 @@ 
         $this->params = $params;
 
         // Send off query to get total number of search results in advance
-        $this->submit(0, 1, false);
+        $this->submit(0, 1, FALSE);
     }
 
-    public function submit($start, $rows, $processResults = true)
+    public function submit($start, $rows, $processResults = TRUE)
     {
         $params = $this->params;
         $params['start'] = $start;
         $params['rows'] = $rows;
 
         // Perform search.
-        $result = $this->searchSolr($params, true);
+        $result = $this->searchSolr($params, TRUE);
 
         // Initialize values
         $documents = [];
@@ -316,7 +316,7 @@ 
                     $documents[$doc['uid']] = $allDocuments[$doc['uid']];
                 }
                 if ($documents[$doc['uid']]) {
-                    if ($doc['toplevel'] === false) {
+                    if ($doc['toplevel'] === FALSE) {
                         // this maybe a chapter, article, ..., year
                         if ($doc['type'] === 'year') {
                             continue;
@@ -340,7 +340,7 @@ 
                             }
                             $documents[$doc['uid']]['searchResults'][] = $searchResult;
                         }
-                    } else if ($doc['toplevel'] === true) {
+                    } else if ($doc['toplevel'] === TRUE) {
                         foreach ($params['listMetadataRecords'] as $indexName => $solrField) {
                             if (isset($doc['metadata'][$indexName])) {
                                 $documents[$doc['uid']]['metadata'][$indexName] = $doc['metadata'][$indexName];
@@ -408,7 +408,7 @@ 
         $params['filterquery'][] = ['query' => 'toplevel:true'];
 
         // Perform search.
-        $result = $this->searchSolr($params, true);
+        $result = $this->searchSolr($params, TRUE);
 
         foreach ($result['documents'] as $doc) {
             $metadataArray[$doc['uid']] = $doc['metadata'];
@@ -427,7 +427,7 @@ 
      *
      * @return array The Apache Solr Documents that were fetched
      */
-    protected function searchSolr($parameters = [], $enableCache = true)
+    protected function searchSolr($parameters = [], $enableCache = TRUE)
     {
         // Set query.
         $parameters['query'] = isset($parameters['query']) ? $parameters['query'] : '*';
@@ -446,10 +446,10 @@ 
         }
 
         $cacheIdentifier = '';
-        $cache = null;
+        $cache = NULL;
         // Calculate cache identifier.
-        if ($enableCache === true) {
-            $cacheIdentifier = Helper::digest($solr->core . print_r($parameters, true));
+        if ($enableCache === TRUE) {
+            $cacheIdentifier = Helper::digest($solr->core . print_r($parameters, TRUE));
             $cache = GeneralUtility::makeInstance(CacheManager::class)->getCache('tx_dlf_solr');
         }
         $resultSet = [
@@ -457,22 +457,22 @@ 
             'numberOfToplevels' => 0,
             'numFound' => 0,
         ];
-        if ($enableCache === false || ($entry = $cache->get($cacheIdentifier)) === false) {
+        if ($enableCache === FALSE || ($entry = $cache->get($cacheIdentifier)) === FALSE) {
             $selectQuery = $solr->service->createSelect($parameters);
 
             $grouping = $selectQuery->getGrouping();
             $grouping->addField('uid');
             $grouping->setLimit(100); // Results in group (TODO: check)
-            $grouping->setNumberOfGroups(true);
+            $grouping->setNumberOfGroups(TRUE);
 
-            if ($parameters['fulltext'] === true) {
+            if ($parameters['fulltext'] === TRUE) {
                 // get highlighting component and apply settings
                 $selectQuery->getHighlighting();
             }
 
             $solrRequest = $solr->service->createRequest($selectQuery);
 
-            if ($parameters['fulltext'] === true) {
+            if ($parameters['fulltext'] === TRUE) {
                 // If it is a fulltext search, enable highlighting.
                 // field for which highlighting is going to be performed,
                 // is required if you want to have OCR highlighting
@@ -493,7 +493,7 @@ 
             $resultSet['numberOfToplevels'] = $uidGroup->getNumberOfGroups();
             $resultSet['numFound'] = $uidGroup->getMatches();
             $highlighting = [];
-            if ($parameters['fulltext'] === true) {
+            if ($parameters['fulltext'] === TRUE) {
                 $data = $result->getData();
                 $highlighting = $data['ocrHighlighting'];
             }
@@ -524,7 +524,7 @@ 
             }
 
             // Save value in cache.
-            if (!empty($resultSet) && $enableCache === true) {
+            if (!empty($resultSet) && $enableCache === TRUE) {
                 $cache->set($cacheIdentifier, $resultSet);
             }
         } else {