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add new Iterator class

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not used yet
This commit is contained in:
Uwe Steinmann 2020-02-06 11:34:08 +01:00
parent c5a78839df
commit 23b994ac23
2 changed files with 232 additions and 0 deletions
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229
SeedDMS_Core/Core/inc.ClassIterator.php Normal file
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@ -0,0 +1,229 @@
<?php
/**
* Implementation of the document iterartor
*
* @category DMS
* @package SeedDMS_Core
* @license GPL 2
* @version @version@
* @author Uwe Steinmann <uwe@steinmann.cx>
* @copyright Copyright (C) 2010, Uwe Steinmann
* @version Release: @package_version@
*/
class DocumentIterator implements Iterator {
/**
* @var object folder
*/
protected $_folder;
/**
* @var object dms
*/
protected $_dms;
/**
* @var array documents
*/
protected $_documents;
public function __construct($folder) {
$this->_folder = $folder;
$this->_dms = $folder->getDMS();
$this->_documents = array();
$this->_pointer = 0;
$this->_cache = array();
$this->populate();
}
public function rewind() {
$this->_pointer = 0;
}
public function valid() {
return isset($this->_documents[$this->_pointer]);
}
public function next() {
$this->_pointer++;
}
public function key() {
return $this->_folders[$this->_pointer];
}
public function current() {
if($this->_documents[$this->_pointer]) {
$documentid = $this->_documents[$this->_pointer]['id'];
if(!isset($this->_cache[$documentid])) {
// echo $documentid." not cached<br />";
$this->_cache[$documentid] = $this->_dms->getdocument($documentid);
}
return $this->_cache[$documentid];
}
return null;
}
private function populate($orderby="", $dir="asc", $limit=0, $offset=0) { /* {{{ */
$db = $this->_dms->getDB();
$queryStr = "SELECT `id` FROM `tblDocuments` WHERE `folder` = " . $this->_folder->getID();
if ($orderby && $orderby[0]=="n") $queryStr .= " ORDER BY `name`";
elseif ($orderby && $orderby[0]=="s") $queryStr .= " ORDER BY `sequence`";
elseif ($orderby && $orderby[0]=="d") $queryStr .= " ORDER BY `date`";
if($dir == 'desc')
$queryStr .= " DESC";
if(is_int($limit) && $limit > 0) {
$queryStr .= " LIMIT ".$limit;
if(is_int($offset) && $offset > 0)
$queryStr .= " OFFSET ".$offset;
}
$resArr = $db->getResultArray($queryStr);
if (is_bool($resArr) && $resArr == false)
return false;
$this->_documents = $resArr;
} /* }}} */
}
class FolderIterator implements Iterator { /* {{{ */
/**
* @var object folder
*/
protected $_folder;
/**
* @var object dms
*/
protected $_dms;
/**
* @var array documents
*/
protected $_folders;
public function __construct($folder) { /* {{{ */
$this->_folder = $folder;
$this->_dms = $folder->getDMS();
$this->_folders = array();
$this->_pointer = 0;
$this->_cache = array();
$this->populate();
} /* }}} */
public function rewind() { /* {{{ */
$this->_pointer = 0;
} /* }}} */
public function valid() { /* {{{ */
return isset($this->_folders[$this->_pointer]);
} /* }}} */
public function next() { /* {{{ */
$this->_pointer++;
} /* }}} */
public function key() { /* {{{ */
return $this->_folders[$this->_pointer];
} /* }}} */
public function current() { /* {{{ */
if($this->_folders[$this->_pointer]) {
$folderid = $this->_folders[$this->_pointer]['id'];
if(!isset($this->_cache[$folderid])) {
// echo $folderid." not cached<br />";
$this->_cache[$folderid] = $this->_dms->getFolder($folderid);
}
return $this->_cache[$folderid];
}
return null;
} /* }}} */
private function populate($orderby="", $dir="asc", $limit=0, $offset=0) { /* {{{ */
$db = $this->_dms->getDB();
$queryStr = "SELECT `id` FROM `tblFolders` WHERE `parent` = " . $this->_folder->getID();
if ($orderby && $orderby[0]=="n") $queryStr .= " ORDER BY `name`";
elseif ($orderby && $orderby[0]=="s") $queryStr .= " ORDER BY `sequence`";
elseif ($orderby && $orderby[0]=="d") $queryStr .= " ORDER BY `date`";
if($dir == 'desc')
$queryStr .= " DESC";
if(is_int($limit) && $limit > 0) {
$queryStr .= " LIMIT ".$limit;
if(is_int($offset) && $offset > 0)
$queryStr .= " OFFSET ".$offset;
}
$resArr = $db->getResultArray($queryStr);
if (is_bool($resArr) && $resArr == false)
return false;
$this->_folders = $resArr;
} /* }}} */
} /* }}} */
/**
* The FolderFilterIterator checks if the given user has access on
* the current folder.
* FilterIterator uses an inner iterator passed to the constructor
* to iterate over the sub folders of a folder.
*
$iter = new FolderIterator($folder);
$iter2 = new FolderFilterIterator($iter, $user);
foreach($iter2 as $ff) {
echo $ff->getName()."<br />";
}
*/
class FolderFilterIterator extends FilterIterator { /* {{{ */
public function __construct(Iterator $iterator , $filter ) {
parent::__construct($iterator);
$this->userFilter = $filter;
}
public function accept() { /* {{{ */
$folder = $this->getInnerIterator()->current();
echo "accept() for ".$folder->getName()."<br />";
return true;
} /* }}} */
} /* }}} */
/**
$iter = new RecursiveFolderIterator($folder);
$iter2 = new RecursiveIteratorIterator($iter, RecursiveIteratorIterator::SELF_FIRST);
foreach($iter2 as $ff) {
echo $ff->getID().': '.$ff->getName()."<br />";
}
*/
class RecursiveFolderIterator extends FolderIterator implements RecursiveIterator { /* {{{ */
public function hasChildren() { /* {{{ */
$db = $this->_dms->getDB();
$queryStr = "SELECT id FROM `tblFolders` WHERE `parent` = ".(int) $this->current()->getID();
$resArr = $db->getResultArray($queryStr);
if (is_bool($resArr) && !$resArr)
return false;
return true;
} /* }}} */
public function getChildren() { /* {{{ */
return new RecursiveFolderIterator($this->current());
} /* }}} */
} /* }}} */
class RecursiveFolderFilterIterator extends FolderFilterIterator { /* {{{ */
public function hasChildren() { /* {{{ */
$db = $this->_dms->getDB();
$queryStr = "SELECT id FROM `tblFolders` WHERE `parent` = ".(int) $this->current()->getID();
$resArr = $db->getResultArray($queryStr);
if (is_bool($resArr) && !$resArr)
return false;
return true;
} /* }}} */
public function getChildren() { /* {{{ */
return new RecursiveFolderIterator($this->current());
} /* }}} */
} /* }}} */

3
SeedDMS_Core/package.xml
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@ -80,6 +80,9 @@
<file name="inc.ClassDecorator.php" role="php">
<tasks:replace from="@package_version@" to="version" type="package-info" />
</file>
<file name="inc.ClassIterator.php" role="php">
<tasks:replace from="@package_version@" to="version" type="package-info" />
</file>
</dir> <!-- /DTD -->
<dir name="tests">
<file name="getfoldertree.php" role="test" />