Project

General

Profile

Feature #61981 ยป SuggestDefaultReceiver.php

Einar Gislason, 2014-09-30 15:44

 
<?php
namespace TYPO3\CMS\Backend\Form\Element;

/**
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/

use TYPO3\CMS\Backend\Utility\BackendUtility;
use TYPO3\CMS\Backend\Utility\IconUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;

/**
* Default implementation of a handler class for an ajax record selector.
*
* Normally other implementations should be inherited from this one.
* queryTable() should not be overwritten under normal circumstances.
*
* @author Andreas Wolf <andreas.wolf@ikt-werk.de>
* @author Benjamin Mack <benni@typo3.org>
*/
class SuggestDefaultReceiver {

/**
* The name of the table to query
*
* @var string
*/
protected $table = '';

/**
* The name of the foreign table to query (records from this table will be used for displaying instead of the ones
* from $table)
*
* @var string
*/
protected $mmForeignTable = '';

/**
* The select-clause to use when selecting the records (is manipulated and used by different functions, so it has to
* be a global var)
*
* @var string
*/
protected $selectClause = '';

/**
* The statement by which records will be ordered
*
* @var string
*/
protected $orderByStatement = '';

/**
* Additional WHERE clause to be appended to the SQL
*
* @var string
*/
protected $addWhere = '';

/**
* Configuration for this selector from TSconfig
*
* @var array
*/
protected $config = array();

/**
* The list of pages that are allowed to perform the search for records on
*
* @var array Array of PIDs
*/
protected $allowedPages = array();

/**
* The maximum number of items to select.
*
* @var integer
*/
protected $maxItems = 10;

/**
* @var array
*/
protected $params = array();

/**
* The constructor of this class
*
* @param string $table The table to query
* @param array $config The configuration (TCA overlayed with TSconfig) to use for this selector
* @return void
*/
public function __construct($table, $config) {
$this->table = $table;
$this->config = $config;
// get a list of all the pages that should be looked on
if (isset($config['pidList'])) {
$allowedPages = ($pageIds = GeneralUtility::trimExplode(',', $config['pidList']));
$depth = (int)$config['pidDepth'];
foreach ($pageIds as $pageId) {
if ($pageId > 0) {
\TYPO3\CMS\Core\Utility\ArrayUtility::mergeRecursiveWithOverrule($allowedPages, $this->getAllSubpagesOfPage($pageId, $depth));
}
}
$this->allowedPages = array_unique($allowedPages);
}
if (isset($config['maxItemsInResultList'])) {
$this->maxItems = $config['maxItemsInResultList'];
}
if ($this->table == 'pages') {
$this->addWhere = ' AND ' . $GLOBALS['BE_USER']->getPagePermsClause(1);
}
// if table is versionized, only get the records from the Live Workspace
// the overlay itself of WS-records is done below
if ($GLOBALS['TCA'][$this->table]['ctrl']['versioningWS'] == TRUE) {
$this->addWhere .= ' AND t3ver_wsid = 0';
}
if (isset($config['addWhere'])) {
$this->addWhere .= ' ' . $config['addWhere'];
}
}

/**
* Queries a table for records and completely processes them
*
* Returns a two-dimensional array of almost finished records; the only need to be put into a <li>-structure
*
* If you subclass this class, you will most likely only want to overwrite the functions called from here, but not
* this function itself
*
* @param array $params
* @param integer $ref The parent object
* @return array Array of rows or FALSE if nothing found
*/
public function queryTable(&$params, $recursionCounter = 0) {
$rows = array();
$this->params = &$params;
$start = $recursionCounter * 50;
$this->prepareSelectStatement();
$this->prepareOrderByStatement();
$res = $GLOBALS['TYPO3_DB']->exec_SELECTquery('*', $this->table, $this->selectClause, '', $this->orderByStatement, $start . ', 50');

$allRowsCount = $GLOBALS['TYPO3_DB']->sql_num_rows($res);
if ($allRowsCount) {
while ($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {
// check if we already have collected the maximum number of records
if (count($rows) > $this->maxItems) {
break;
}
$this->manipulateRecord($row);
$this->makeWorkspaceOverlay($row);
// check if the user has access to the record
if (!$this->checkRecordAccess($row, $row['uid'])) {
continue;
}
$spriteIcon = IconUtility::getSpriteIconForRecord(
$this->table, $row, array('style' => 'margin: 0 4px 0 -20px; padding: 0;')
);
$uid = $row['t3ver_oid'] > 0 ? $row['t3ver_oid'] : $row['uid'];
$path = $this->getRecordPath($row, $uid);
if (strlen($path) > 30) {
$croppedPath = '<abbr title="' . htmlspecialchars($path) . '">' . htmlspecialchars(($GLOBALS['LANG']->csConvObj->crop($GLOBALS['LANG']->charSet, $path, 10) . '...' . $GLOBALS['LANG']->csConvObj->crop($GLOBALS['LANG']->charSet, $path, -20))) . '</abbr>';
} else {
$croppedPath = htmlspecialchars($path);
}
$label = $this->getLabel($row);
$entry = array(
'text' => '<span class="suggest-label">' . $label . '</span><span class="suggest-uid">[' . $uid . ']</span><br />
<span class="suggest-path">' . $croppedPath . '</span>',
'table' => $this->mmForeignTable ? $this->mmForeignTable : $this->table,
'label' => $label,
'path' => $path,
'uid' => $uid,
'style' => '',
'class' => isset($this->config['cssClass']) ? $this->config['cssClass'] : '',
'sprite' => $spriteIcon
);
$rows[$this->table . '_' . $uid] = $this->renderRecord($row, $entry);
}
$GLOBALS['TYPO3_DB']->sql_free_result($res);
// if there are less records than we need, call this function again to get more records
if (count($rows) < $this->maxItems && $allRowsCount >= 50 && $recursionCounter < $this->maxItems) {
$tmp = self::queryTable($params, ++$recursionCounter);
$rows = array_merge($tmp, $rows);
}
}
return $rows;
}

/**
* Prepare the statement for selecting the records which will be returned to the selector. May also return some
* other records (e.g. from a mm-table) which will be used later on to select the real records
*
* @return void
*/
protected function prepareSelectStatement() {
$searchWholePhrase = $this->config['searchWholePhrase'];
$searchString = $this->params['value'];
$searchUid = (int)$searchString;
if (strlen($searchString)) {
$searchStrings = explode('+', $searchString); // Perhaps use another char than "+"?
$selectParts = array();
foreach($searchStrings as $searchWord){
$searchWord = $GLOBALS['TYPO3_DB']->quoteStr($searchWord, $this->table);
$searchWord = trim($searchWord);
$likeCondition = ' LIKE \'' . ($searchWholePhrase ? '%' : '') . $GLOBALS['TYPO3_DB']->escapeStrForLike($searchWord, $this->table) . '%\'';
// Search in all fields given by label or label_alt
$selectFieldsList = $GLOBALS['TCA'][$this->table]['ctrl']['label'] . ',' . $GLOBALS['TCA'][$this->table]['ctrl']['label_alt'] . ',' . $this->config['additionalSearchFields'];
$selectFieldsList = $GLOBALS['TCA'][$this->table]['ctrl']['searchFields'] . ',' . $this->config['additionalSearchFields'];
$selectFields = GeneralUtility::trimExplode(',', $selectFieldsList, TRUE);
$selectFields = array_unique($selectFields);
$fieldSelectParts = array();
foreach ($selectFields as $field) {
$fieldSelectParts[] = $field . $likeCondition;
}
$selectParts[] = '(' . implode(' OR ', $fieldSelectParts) . ')';
}
$this->selectClause = '(' . implode(' AND ', $selectParts) . ')';
if ($searchUid > 0 && $searchUid == $searchString) {
$this->selectClause = '(' . $this->selectClause . ' OR uid = ' . $searchUid . ')';
}
}
if (isset($GLOBALS['TCA'][$this->table]['ctrl']['delete'])) {
$this->selectClause .= ' AND ' . $GLOBALS['TCA'][$this->table]['ctrl']['delete'] . ' = 0';
}
if (count($this->allowedPages)) {
$pidList = $GLOBALS['TYPO3_DB']->cleanIntArray($this->allowedPages);
if (count($pidList)) {
$this->selectClause .= ' AND pid IN (' . implode(', ', $pidList) . ') ';
}
}
// add an additional search condition comment
if (isset($this->config['searchCondition']) && strlen($this->config['searchCondition']) > 0) {
$this->selectClause .= ' AND ' . $this->config['searchCondition'];
}
// add the global clauses to the where-statement
$this->selectClause .= $this->addWhere;
}

/**
* Selects all subpages of one page, optionally only upto a certain level
*
* @param integer $uid The uid of the page
* @param integer $depth The depth to select upto. Defaults to 99
* @return array of page IDs
*/
protected function getAllSubpagesOfPage($uid, $depth = 99) {
$pageIds = array($uid);
$level = 0;
$pages = array($uid);
// fetch all
while ($depth - $level > 0 && !empty($pageIds)) {
++$level;
$pidList = $GLOBALS['TYPO3_DB']->cleanIntArray($pageIds);
$rows = $GLOBALS['TYPO3_DB']->exec_SELECTgetRows('uid', 'pages', 'pid IN (' . implode(', ', $pidList) . ')', '', '', '', 'uid');
if (count($rows) > 0) {
$pageIds = array_keys($rows);
$pages = array_merge($pages, $pageIds);
} else {
break;
}
}
return $pages;
}

/**
* Prepares the clause by which the result elements are sorted. See description of ORDER BY in
* SQL standard for reference.
*
* @return void
*/
protected function prepareOrderByStatement() {
if ($GLOBALS['TCA'][$this->table]['ctrl']['label']) {
$this->orderByStatement = $GLOBALS['TCA'][$this->table]['ctrl']['label'];
}
}

/**
* Manipulate a record before using it to render the selector; may be used to replace a MM-relation etc.
*
* @param array $row
*/
protected function manipulateRecord(&$row) {

}

/**
* Selects whether the logged in Backend User is allowed to read a specific record
*
* @param array $row
* @param integer $uid
* @return boolean
*/
protected function checkRecordAccess($row, $uid) {
$retValue = TRUE;
$table = $this->mmForeignTable ?: $this->table;
if ($table == 'pages') {
if (!BackendUtility::readPageAccess($uid, $GLOBALS['BE_USER']->getPagePermsClause(1))) {
$retValue = FALSE;
}
} elseif (isset($GLOBALS['TCA'][$table]['ctrl']['is_static']) && (bool) $GLOBALS['TCA'][$table]['ctrl']['is_static']) {
$retValue = TRUE;
} else {
if (!is_array(BackendUtility::readPageAccess($row['pid'], $GLOBALS['BE_USER']->getPagePermsClause(1)))) {
$retValue = FALSE;
}
}
return $retValue;
}

/**
* Overlay the given record with its workspace-version, if any
*
* @param array The record to get the workspace version for
* @return void (passed by reference)
*/
protected function makeWorkspaceOverlay(&$row) {
// Check for workspace-versions
if ($GLOBALS['BE_USER']->workspace != 0 && $GLOBALS['TCA'][$this->table]['ctrl']['versioningWS'] == TRUE) {
BackendUtility::workspaceOL($this->mmForeignTable ? $this->mmForeignTable : $this->table, $row);
}
}

/**
* Return the icon for a record - just a wrapper for two functions from \TYPO3\CMS\Backend\Utility\IconUtility
*
* @param array $row The record to get the icon for
* @return string The path to the icon
*/
protected function getIcon($row) {
$icon = IconUtility::getIcon($this->mmForeignTable ? $this->mmForeignTable : $this->table, $row);
return IconUtility::skinImg('', $icon, '', 1);
}

/**
* Returns the path for a record. Is the whole path for all records except pages - for these the last part is cut
* off, because it contains the pagetitle itself, which would be double information
*
* The path is returned uncut, cutting has to be done by calling function.
*
* @param array $row The row
* @param array $record The record
* @return string The record-path
*/
protected function getRecordPath(&$row, $uid) {
$titleLimit = max($this->config['maxPathTitleLength'], 0);
if (($this->mmForeignTable ? $this->mmForeignTable : $this->table) == 'pages') {
$path = BackendUtility::getRecordPath($uid, '', $titleLimit);
// For pages we only want the first (n-1) parts of the path,
// because the n-th part is the page itself
$path = substr($path, 0, strrpos($path, '/', -2)) . '/';
} else {
$path = BackendUtility::getRecordPath($row['pid'], '', $titleLimit);
}
return $path;
}

/**
* Returns a label for a given record; usually only a wrapper for \TYPO3\CMS\Backend\Utility\BackendUtility::getRecordTitle
*
* @param array $row The record to get the label for
* @return string The label
*/
protected function getLabel($row) {
return BackendUtility::getRecordTitle($this->mmForeignTable ? $this->mmForeignTable : $this->table, $row, TRUE);
}

/**
* Calls a user function for rendering the page.
*
* This user function should manipulate $entry, especially $entry['text'].
*
* @param array $row The row
* @param array $entry The entry to render
* @return array The rendered entry (will be put into a <li> later on
*/
protected function renderRecord($row, $entry) {
// Call renderlet if available (normal pages etc. usually don't have one)
if ($this->config['renderFunc'] != '') {
$params = array(
'table' => $this->table,
'uid' => $row['uid'],
'row' => $row,
'entry' => &$entry
);
GeneralUtility::callUserFunction($this->config['renderFunc'], $params, $this, '');
}
return $entry;
}

}
    (1-1/1)