PHP PaginatedList::setLimitItems方法代码示例

 /**
  * Displays a list of all members on the site that belong to the selected
  * groups.
  *
  * @return string
  */
 public function handleList($request)
 {
     $fields = $this->parent->Fields()->filter('MemberListVisible', true);
     $members = $this->parent->Groups()->relation('Members');
     $members = new PaginatedList($members, $request);
     $list = new PaginatedList(new ArrayList(), $request);
     $list->setLimitItems(false);
     $list->setTotalItems($members->getTotalItems());
     foreach ($members as $member) {
         $cols = new ArrayList();
         $public = $member->getPublicFields();
         $link = $this->Link($member->ID);
         foreach ($fields as $field) {
             if ($field->PublicVisibility == 'MemberChoice' && !in_array($field->MemberField, $public)) {
                 $value = null;
             } else {
                 $value = $member->{$field->MemberField};
             }
             $cols->push(new ArrayData(array('Name' => $field->MemberField, 'Title' => $field->Title, 'Value' => $value, 'Sortable' => $member->hasDatabaseField($field->MemberField), 'Link' => $link)));
         }
         $list->push($member->customise(array('Fields' => $cols)));
     }
     $this->data()->Title = _t('MemberProfiles.MEMBERLIST', 'Member List');
     $this->data()->Parent = $this->parent;
     $controller = $this->customise(array('Members' => $list));
     return $controller->renderWith(array('MemberProfileViewer_list', 'MemberProfileViewer', 'Page'));
 }

 /**
  * @param string $type future, all, past
  * @return PaginatedList
  */
 public function getPaginatedItems()
 {
     $items = $this->getItems();
     $paginatedList = new PaginatedList($items, $this->request);
     $paginatedList->setPageLength($this->stat('page_length'));
     $paginatedList->setLimitItems(true);
     return $paginatedList;
 }

 public function testLimitItems()
 {
     $list = new ArrayList(range(1, 50));
     $list = new PaginatedList($list);
     $list->setCurrentPage(3);
     $this->assertEquals(10, count($list->getIterator()->getInnerIterator()));
     $list->setLimitItems(false);
     $this->assertEquals(50, count($list->getIterator()->getInnerIterator()));
 }

 /**
  * The core search engine, used by this class and its subclasses to do fun stuff.
  * Searches both SiteTree and File.
  *
  * @param string $keywords Keywords as a string.
  */
 public function searchEngine($classesToSearch, $keywords, $start, $pageLength, $sortBy = "Relevance DESC", $extraFilter = "", $booleanSearch = false, $alternativeFileFilter = "", $invertedMatch = false)
 {
     if (!class_exists('SiteTree')) {
         throw new Exception('MySQLDatabase->searchEngine() requires "SiteTree" class');
     }
     if (!class_exists('File')) {
         throw new Exception('MySQLDatabase->searchEngine() requires "File" class');
     }
     $fileFilter = '';
     $keywords = Convert::raw2sql($keywords);
     $htmlEntityKeywords = htmlentities($keywords, ENT_NOQUOTES, 'UTF-8');
     $extraFilters = array('SiteTree' => '', 'File' => '');
     if ($booleanSearch) {
         $boolean = "IN BOOLEAN MODE";
     }
     if ($extraFilter) {
         $extraFilters['SiteTree'] = " AND {$extraFilter}";
         if ($alternativeFileFilter) {
             $extraFilters['File'] = " AND {$alternativeFileFilter}";
         } else {
             $extraFilters['File'] = $extraFilters['SiteTree'];
         }
     }
     // Always ensure that only pages with ShowInSearch = 1 can be searched
     $extraFilters['SiteTree'] .= " AND ShowInSearch <> 0";
     // File.ShowInSearch was added later, keep the database driver backwards compatible
     // by checking for its existence first
     $fields = $this->fieldList('File');
     if (array_key_exists('ShowInSearch', $fields)) {
         $extraFilters['File'] .= " AND ShowInSearch <> 0";
     }
     $limit = $start . ", " . (int) $pageLength;
     $notMatch = $invertedMatch ? "NOT " : "";
     if ($keywords) {
         $match['SiteTree'] = "\n\t\t\t\tMATCH (Title, MenuTitle, Content, MetaDescription) AGAINST ('{$keywords}' {$boolean})\n\t\t\t\t+ MATCH (Title, MenuTitle, Content, MetaDescription) AGAINST ('{$htmlEntityKeywords}' {$boolean})\n\t\t\t";
         $match['File'] = "MATCH (Filename, Title, Content) AGAINST ('{$keywords}' {$boolean}) AND ClassName = 'File'";
         // We make the relevance search by converting a boolean mode search into a normal one
         $relevanceKeywords = str_replace(array('*', '+', '-'), '', $keywords);
         $htmlEntityRelevanceKeywords = str_replace(array('*', '+', '-'), '', $htmlEntityKeywords);
         $relevance['SiteTree'] = "MATCH (Title, MenuTitle, Content, MetaDescription) " . "AGAINST ('{$relevanceKeywords}') " . "+ MATCH (Title, MenuTitle, Content, MetaDescription) AGAINST ('{$htmlEntityRelevanceKeywords}')";
         $relevance['File'] = "MATCH (Filename, Title, Content) AGAINST ('{$relevanceKeywords}')";
     } else {
         $relevance['SiteTree'] = $relevance['File'] = 1;
         $match['SiteTree'] = $match['File'] = "1 = 1";
     }
     // Generate initial DataLists and base table names
     $lists = array();
     $baseClasses = array('SiteTree' => '', 'File' => '');
     foreach ($classesToSearch as $class) {
         $lists[$class] = DataList::create($class)->where($notMatch . $match[$class] . $extraFilters[$class], "");
         $baseClasses[$class] = '"' . $class . '"';
     }
     // Make column selection lists
     $select = array('SiteTree' => array("ClassName", "{$baseClasses['SiteTree']}.\"ID\"", "ParentID", "Title", "MenuTitle", "URLSegment", "Content", "LastEdited", "Created", "Filename" => "_utf8''", "Name" => "_utf8''", "Relevance" => $relevance['SiteTree'], "CanViewType"), 'File' => array("ClassName", "{$baseClasses['File']}.\"ID\"", "ParentID" => "_utf8''", "Title", "MenuTitle" => "_utf8''", "URLSegment" => "_utf8''", "Content", "LastEdited", "Created", "Filename", "Name", "Relevance" => $relevance['File'], "CanViewType" => "NULL"));
     // Process and combine queries
     $querySQLs = array();
     $totalCount = 0;
     foreach ($lists as $class => $list) {
         $query = $list->dataQuery()->query();
         // There's no need to do all that joining
         $query->setFrom(array(str_replace(array('"', '`'), '', $baseClasses[$class]) => $baseClasses[$class]));
         $query->setSelect($select[$class]);
         $query->setOrderBy(array());
         $querySQLs[] = $query->sql();
         $totalCount += $query->unlimitedRowCount();
     }
     $fullQuery = implode(" UNION ", $querySQLs) . " ORDER BY {$sortBy} LIMIT {$limit}";
     // Get records
     $records = DB::query($fullQuery);
     $objects = array();
     foreach ($records as $record) {
         $objects[] = new $record['ClassName']($record);
     }
     $list = new PaginatedList(new ArrayList($objects));
     $list->setPageStart($start);
     $list->setPageLEngth($pageLength);
     $list->setTotalItems($totalCount);
     // The list has already been limited by the query above
     $list->setLimitItems(false);
     return $list;
 }

 /**
  * Perform a search against the data table.
  *
  * @param array $where Array of strings to add into the WHERE clause
  * @param array $orderby Array of column as key, to direction as value to add into the ORDER BY clause
  * @param string|int $start Record to start at (for paging)
  * @param string|int $pageLength Number of results per page (for paging)
  * @param boolean $paged Paged results or not?
  * @return ArrayList|PaginatedList
  */
 protected function queryList($where = array(), $orderby = array(), $start, $pageLength, $paged = true)
 {
     $dataClass = $this->dataRecord->getDataClass();
     if (!$dataClass) {
         return new PaginatedList(new ArrayList());
     }
     $resultColumns = $this->dataRecord->getDataSingleton()->summaryFields();
     $resultColumns['ID'] = 'ID';
     $results = new ArrayList();
     $query = new SQLQuery();
     $query->setSelect($this->escapeSelect(array_keys($resultColumns)))->setFrom("\"{$dataClass}\"");
     $query->addWhere($where);
     $query->addOrderBy($orderby);
     $query->setConnective('AND');
     if ($paged) {
         $query->setLimit($pageLength, $start);
     }
     foreach ($query->execute() as $record) {
         $result = new $dataClass($record);
         $result->Columns = $this->Columns($result);
         // we attach Columns here so the template can loop through them on each result
         $results->push($result);
     }
     if ($paged) {
         $list = new PaginatedList($results);
         $list->setPageStart($start);
         $list->setPageLength($pageLength);
         $list->setTotalItems($query->unlimitedRowCount());
         $list->setLimitItems(false);
     } else {
         $list = $results;
     }
     return $list;
 }

 /**
  * Gets the results from the given query.
  *
  * Appends to the usual results the matches on the GtkdocSection
  * instances on the following order:
  *
  * 1. GtkdocSections with matches in 'Title'
  * 2. GtkdocSections with matches in 'MetaDescription'
  * 3. GtkdocSections with matches in 'Content'
  *
  * Eventual duplicates are dropped from the list.
  *
  * @param array          $data    The raw data submitted by user
  * @param SearchForm     $form    The form instance
  * @param SS_HTTPRequest $request Request for this action
  */
 public function results($data, $form, $request)
 {
     $keywords = $data['Search'];
     // Populate the first matches in the usual way
     $matches = $form->getResults()->toArray();
     // Get the list of GtkdocSection with matching title...
     $context = singleton('GtkdocSection')->getDefaultSearchContext();
     $gtkdoc_matches = $context->getResults(array('Title' => $keywords))->toArray();
     // ...and add to them the list of GtkdocSection with matching
     // description and matching content, skipping the duplicates...
     self::merge($gtkdoc_matches, $context->getResults(array('MetaDescription' => $keywords))->toArray());
     self::merge($gtkdoc_matches, $context->getResults(array('Content' => $keywords))->toArray());
     // Append the GtkdocSection matches to the original ones
     $matches = array_merge($matches, $gtkdoc_matches);
     $results = new PaginatedList(new ArrayList($matches));
     $results->setPageLength(10);
     $results->setLimitItems(true);
     $results->setPageStart($request->getVar('start'));
     $data = array('Results' => $results, 'Query' => $form->getSearchQuery(), 'Title' => _t('SearchForm.SearchResults', 'Search Results'));
     return $this->owner->customise($data)->renderWith(array('Page_results', 'Page'));
 }

 /**
  * The core search engine configuration.
  * @todo Properly extract the search functions out of the core.
  *
  * @param string $keywords Keywords as a space separated string
  * @return object DataObjectSet of result pages
  */
 public function searchEngine($classesToSearch, $keywords, $start, $pageLength, $sortBy = "ts_rank DESC", $extraFilter = "", $booleanSearch = false, $alternativeFileFilter = "", $invertedMatch = false)
 {
     //Fix the keywords to be ts_query compatitble:
     //Spaces must have pipes
     //@TODO: properly handle boolean operators here.
     $keywords = trim($keywords);
     $keywords = str_replace(' ', ' | ', $keywords);
     $keywords = str_replace('"', "'", $keywords);
     $keywords = $this->quoteString(trim($keywords));
     //We can get a list of all the tsvector columns though this query:
     //We know what tables to search in based on the $classesToSearch variable:
     $classesPlaceholders = DB::placeholders($classesToSearch);
     $result = $this->preparedQuery("\n\t\t\tSELECT table_name, column_name, data_type\n\t\t\tFROM information_schema.columns\n\t\t\tWHERE data_type='tsvector' AND table_name in ({$classesPlaceholders});", $classesToSearch);
     if (!$result->numRecords()) {
         throw new Exception('there are no full text columns to search');
     }
     $tables = array();
     $tableParameters = array();
     // Make column selection lists
     $select = array('SiteTree' => array('"ClassName"', '"SiteTree"."ID"', '"ParentID"', '"Title"', '"URLSegment"', '"Content"', '"LastEdited"', '"Created"', 'NULL AS "Name"', '"CanViewType"'), 'File' => array('"ClassName"', '"File"."ID"', '0 AS "ParentID"', '"Title"', 'NULL AS "URLSegment"', 'NULL AS "Content"', '"LastEdited"', '"Created"', '"Name"', 'NULL AS "CanViewType"'));
     foreach ($result as $row) {
         $conditions = array();
         if ($row['table_name'] === 'SiteTree' || $row['table_name'] === 'File') {
             $conditions[] = array('"ShowInSearch"' => 1);
         }
         $method = self::default_fts_search_method();
         $conditions[] = "\"{$row['table_name']}\".\"{$row['column_name']}\" {$method} q ";
         $query = DataObject::get($row['table_name'], $conditions)->dataQuery()->query();
         // Could parameterise this, but convention is only to to so for where conditions
         $query->addFrom(array('tsearch' => ", to_tsquery('" . self::search_language() . "', {$keywords}) AS q"));
         $query->setSelect(array());
         foreach ($select[$row['table_name']] as $clause) {
             if (preg_match('/^(.*) +AS +"?([^"]*)"?/i', $clause, $matches)) {
                 $query->selectField($matches[1], $matches[2]);
             } else {
                 $query->selectField($clause);
             }
         }
         $query->selectField("ts_rank(\"{$row['table_name']}\".\"{$row['column_name']}\", q)", 'Relevance');
         $query->setOrderBy(array());
         //Add this query to the collection
         $tables[] = $query->sql($parameters);
         $tableParameters = array_merge($tableParameters, $parameters);
     }
     $limit = $pageLength;
     $offset = $start;
     if ($keywords) {
         $orderBy = " ORDER BY {$sortBy}";
     } else {
         $orderBy = '';
     }
     $fullQuery = "SELECT * FROM (" . implode(" UNION ", $tables) . ") AS q1 {$orderBy} LIMIT {$limit} OFFSET {$offset}";
     // Get records
     $records = $this->preparedQuery($fullQuery, $tableParameters);
     $totalCount = 0;
     foreach ($records as $record) {
         $objects[] = new $record['ClassName']($record);
         $totalCount++;
     }
     if (isset($objects)) {
         $results = new ArrayList($objects);
     } else {
         $results = new ArrayList();
     }
     $list = new PaginatedList($results);
     $list->setLimitItems(false);
     $list->setPageStart($start);
     $list->setPageLength($pageLength);
     $list->setTotalItems($totalCount);
     return $list;
 }