seeddms-code/inc/inc.ClassDMS.php

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<?php
// MyDMS. Document Management System
// Copyright (C) 2010 Uwe Steinmann
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
/**
* Implementation of LetoDMS_DMS
*
* @category DMS
* @package LetoDMЅ
* @author Uwe Steinmann <uwe@steinmann.cx>
* @copyright Copyright (C) 2010, Uwe Steinmann
* @version Release: @package_version@
*/
require_once("inc.ClassFolder.php");
require_once("inc.ClassDocument.php");
require_once("inc.ClassGroup.php");
require_once("inc.ClassUser.php");
/**
* Class to represent the complete document management
*
* @category DMS
* @package LetoDMS
* @author Uwe Steinmann <uwe@steinmann.cx>
* @copyright Copyright (C) 2010, Uwe Steinmann
* @version Release: @package_version@
*/
class LetoDMS_DMS {
/**
* @var object $db reference to database object
* @access protected
*/
protected $db;
/**
* @var object $user reference to currently logged in user
* @access public
*/
public $user;
/**
* @var string $contentDir location in file system where all the
* data stores are located.
* @access public
*/
public $contentDir;
/**
* @var string $contentOffsetDir location in file system relative to
* @var $contentDir where all the documents belonging to a
* data stored are saved
* @access public
*/
public $contentOffsetDir;
/**
* @var integer $guestID ID of user treated as a guest with limited
* access rights
* @access public
*/
public $guestID;
/**
* @var integer $adminID ID of user treated as an administrator with full
* access rights
* @access public
*/
public $adminID;
/**
* @var integer $rootFolderID ID of root folder
* @access public
*/
public $rootFolderID;
function __construct($db, $contentDir, $contentOffsetDir) { /* {{{ */
$this->db = $db;
$this->contentDir = $contentDir;
$this->contentOffsetDir = $contentOffsetDir;
$this->rootFolderID = 1;
$this->adminID = 1;
$this->guestID = 2;
} /* }}} */
function setRootFolderID($id) { /* {{{ */
$this->rootFolderID = $id;
} /* }}} */
function setAdminID($id) { /* {{{ */
$this->adminID = $id;
} /* }}} */
function setGuestID($id) { /* {{{ */
$this->guestID = $id;
} /* }}} */
/**
* Login as a user
*
* Checks if the given credentials are valid returns a user object.
* It also sets the property $user for later access on the currently
* logged in user
*
* @param string $username login name of user
* @param string $password password of user
*
* @return object instance of class LetoDMS_User or false
*/
function login($username, $password) { /* {{{ */
} /* }}} */
/**
* Set the logged in user
*
* If user authentication was externally done, this function can
* be used to tell the dms who is currently logged in.
*
* @param object $user
*
*/
function setUser($user) { /* {{{ */
$this->user = $user;
} /* }}} */
/**
* Return a document by its id
*
* This function retrieves a document from the database by its id.
*
* @param integer $id internal id of document
* @return object instance of LetoDMS_Document or false
*/
function getDocument($id) { /* {{{ */
if (!is_numeric($id)) return false;
$queryStr = "SELECT * FROM tblDocuments WHERE id = " . $id;
$resArr = $this->db->getResultArray($queryStr);
if (is_bool($resArr) && $resArr == false)
return false;
if (count($resArr) != 1)
return false;
$resArr = $resArr[0];
// New Locking mechanism uses a separate table to track the lock.
$queryStr = "SELECT * FROM tblDocumentLocks WHERE document = " . $id;
$lockArr = $this->db->getResultArray($queryStr);
if ((is_bool($lockArr) && $lockArr==false) || (count($lockArr)==0)) {
// Could not find a lock on the selected document.
$lock = -1;
}
else {
// A lock has been identified for this document.
$lock = $lockArr[0]["userID"];
}
$document = new LetoDMS_Document($resArr["id"], $resArr["name"], $resArr["comment"], $resArr["date"], $resArr["expires"], $resArr["owner"], $resArr["folder"], $resArr["inheritAccess"], $resArr["defaultAccess"], $lock, $resArr["keywords"], $resArr["sequence"]);
$document->setDMS($this);
return $document;
} /* }}} */
/*
* Search the database for documents
*
* @param query string seach query with space separated words
* @param limit integer number of items in result set
* @param offset integer index of first item in result set
* @param mode string either AND or OR
* @param searchin array() list of fields to search in
* @param startFolder object search in the folder only (null for root folder)
* @param owner object search for documents owned by this user
* @param status array list of status
* @param creationstartdate array search for documents created after this date
* @param creationenddate array search for documents created before this date
* @return array containing the elements total and docs
*/
function search($query, $limit=0, $offset=0, $mode='AND', $searchin=array(), $startFolder=null, $owner=null, $status = array(), $creationstartdate=array(), $creationenddate=array()) { /* {{{ */
// Split the search string into constituent keywords.
$tkeys=array();
if (strlen($query)>0) {
$tkeys = split("[\t\r\n ,]+", $query);
}
// if none is checkd search all
if (count($searchin)==0)
$searchin=array( 0, 1, 2, 3);
$searchKey = "";
// Assemble the arguments for the concatenation function. This allows the
// search to be carried across all the relevant fields.
$concatFunction = "";
if (in_array(1, $searchin)) {
$concatFunction = "`tblDocuments`.`keywords`";
}
if (in_array(2, $searchin)) {
$concatFunction = (strlen($concatFunction) == 0 ? "" : $concatFunction.", ")."`tblDocuments`.`name`";
}
if (in_array(3, $searchin)) {
$concatFunction = (strlen($concatFunction) == 0 ? "" : $concatFunction.", ")."`tblDocuments`.`comment`";
}
if (strlen($concatFunction)>0 && count($tkeys)>0) {
$concatFunction = "CONCAT_WS(' ', ".$concatFunction.")";
foreach ($tkeys as $key) {
$key = trim($key);
if (strlen($key)>0) {
$searchKey = (strlen($searchKey)==0 ? "" : $searchKey." ".$mode." ").$concatFunction." LIKE '%".$key."%'";
}
}
}
// Check to see if the search has been restricted to a particular sub-tree in
// the folder hierarchy.
$searchFolder = "";
if ($startFolder) {
$searchFolder = "`tblDocuments`.`folderList` LIKE '%:".$startFolder->getID().":%'";
}
// Check to see if the search has been restricted to a particular
// document owner.
$searchOwner = "";
if ($owner) {
$searchOwner = "`tblDocuments`.`owner` = '".$owner->getId()."'";
}
// Is the search restricted to documents created between two specific dates?
$searchCreateDate = "";
if ($creationstartdate) {
$startdate = makeTimeStamp(0, 0, 0, $createstartdate["year"], $createstartdate["month"], $createstartdate["day"]);
if ($startdate) {
$searchCreateDate .= "`tblDocuments`.`date` >= ".$startdate;
}
}
if ($creationenddate) {
$stopdate = makeTimeStamp(23, 59, 59, $createenddate["year"], $createenddate["month"], $createenddate["day"]);
if ($stopdate) {
if($startdate)
$searchCreateDate .= " AND ";
$searchCreateDate = "`tblDocuments`.`date` <= ".$stopdate;
}
}
// ---------------------- Suche starten ----------------------------------
//
// Construct the SQL query that will be used to search the database.
//
if (!$this->db->createTemporaryTable("ttcontentid") || !$this->db->createTemporaryTable("ttstatid")) {
return false;
}
$searchQuery = "FROM `tblDocumentContent` ".
"LEFT JOIN `tblDocuments` ON `tblDocuments`.`id` = `tblDocumentContent`.`document` ".
"LEFT JOIN `tblDocumentStatus` ON `tblDocumentStatus`.`documentID` = `tblDocumentContent`.`document` ".
"LEFT JOIN `tblDocumentStatusLog` ON `tblDocumentStatusLog`.`statusID` = `tblDocumentStatus`.`statusID` ".
"LEFT JOIN `ttstatid` ON `ttstatid`.`maxLogID` = `tblDocumentStatusLog`.`statusLogID` ".
"LEFT JOIN `ttcontentid` ON `ttcontentid`.`maxVersion` = `tblDocumentStatus`.`version` AND `ttcontentid`.`document` = `tblDocumentStatus`.`documentID` ".
"LEFT JOIN `tblDocumentLocks` ON `tblDocuments`.`id`=`tblDocumentLocks`.`document` ".
"WHERE `ttstatid`.`maxLogID`=`tblDocumentStatusLog`.`statusLogID` ".
"AND `ttcontentid`.`maxVersion` = `tblDocumentContent`.`version`";
if (strlen($searchKey)>0) {
$searchQuery .= " AND (".$searchKey.")";
}
if (strlen($searchFolder)>0) {
$searchQuery .= " AND ".$searchFolder;
}
if (strlen($searchOwner)>0) {
$searchQuery .= " AND (".$searchOwner.")";
}
if (strlen($searchCreateDate)>0) {
$searchQuery .= " AND (".$searchCreateDate.")";
}
// status
if ($status) {
$searchQuery .= " AND `tblDocumentStatusLog`.`status` IN (".implode(',', $status).")";
}
// Count the number of rows that the search will produce.
$resArr = $this->db->getResultArray("SELECT COUNT(*) AS num ".$searchQuery);
$totalDocs = 0;
if (is_numeric($resArr[0]["num"]) && $resArr[0]["num"]>0) {
$totalDocs = (integer)$resArr[0]["num"];
}
if($limit) {
$totalPages = (integer)($totalDocs/$limit);
if (($totalDocs%$limit) > 0) {
$totalPages++;
}
} else {
$totalPages = 1;
}
// If there are no results from the count query, then there is no real need
// to run the full query. TODO: re-structure code to by-pass additional
// queries when no initial results are found.
// Prepare the complete search query, including the LIMIT clause.
$searchQuery = "SELECT `tblDocuments`.*, ".
"`tblDocumentContent`.`version`, ".
"`tblDocumentStatusLog`.`status`, `tblDocumentLocks`.`userID` as `lockUser` ".$searchQuery;
if($limit) {
$searchQuery .= " LIMIT ".$offset.",".$limit;
}
// Send the complete search query to the database.
$resArr = $this->db->getResultArray($searchQuery);
// ------------------- Ausgabe der Ergebnisse ----------------------------
$numResults = count($resArr);
if ($numResults == 0) {
return array('totalDocs'=>$totalDocs, 'totalPages'=>$totalPages, 'docs'=>array());
}
foreach ($resArr as $docArr) {
$document = new LetoDMS_Document(
$docArr["id"], $docArr["name"],
$docArr["comment"], $docArr["date"],
$docArr["expires"], $docArr["owner"],
$docArr["folder"], $docArr["inheritAccess"],
$docArr["defaultAccess"], $docArr["lockUser"],
$docArr["keywords"], $docArr["sequence"]);
$document->setDMS($this);
$docs[] = $document;
}
return(array('totalDocs'=>$totalDocs, 'totalPages'=>$totalPages, 'docs'=>$docs));
} /* }}} */
/**
* Return a folder by its id
*
* This function retrieves a folder from the database by its id.
*
* @param integer $id internal id of folder
* @return object instance of LetoDMS_Folder or false
*/
function getFolder($id) { /* {{{ */
if (!is_numeric($id)) return false;
$queryStr = "SELECT * FROM tblFolders WHERE id = " . $id;
$resArr = $this->db->getResultArray($queryStr);
if (is_bool($resArr) && $resArr == false)
return false;
else if (count($resArr) != 1)
return false;
$resArr = $resArr[0];
$folder = new LetoDMS_Folder($resArr["id"], $resArr["name"], $resArr["parent"], $resArr["comment"], $resArr["owner"], $resArr["inheritAccess"], $resArr["defaultAccess"], $resArr["sequence"]);
$folder->setDMS($this);
return $folder;
} /* }}} */
/**
* Return a user by its id
*
* This function retrieves a user from the database by its id.
*
* @param integer $id internal id of user
* @return object instance of LetoDMS_User or false
*/
function getUser($id) { /* {{{ */
if (!is_numeric($id))
return false;
$queryStr = "SELECT * FROM tblUsers WHERE id = " . $id;
$resArr = $this->db->getResultArray($queryStr);
if (is_bool($resArr) && $resArr == false) return false;
if (count($resArr) != 1) return false;
$resArr = $resArr[0];
$user = new LetoDMS_User($resArr["id"], $resArr["login"], $resArr["pwd"], $resArr["fullName"], $resArr["email"], $resArr["language"], $resArr["theme"], $resArr["comment"], $resArr["isAdmin"], $resArr["hidden"]);
$user->setDMS($this);
return $user;
} /* }}} */
/**
* Return a user by its login
*
* This function retrieves a user from the database by its login.
*
* @param integer $login internal login of user
* @return object instance of LetoDMS_User or false
*/
function getUserByLogin($login) { /* {{{ */
$queryStr = "SELECT * FROM tblUsers WHERE login = '".$login."'";
$resArr = $this->db->getResultArray($queryStr);
if (is_bool($resArr) && $resArr == false) return false;
if (count($resArr) != 1) return false;
$resArr = $resArr[0];
$user = new LetoDMS_User($resArr["id"], $resArr["login"], $resArr["pwd"], $resArr["fullName"], $resArr["email"], $resArr["language"], $resArr["theme"], $resArr["comment"], $resArr["isAdmin"], $resArr["hidden"]);
$user->setDMS($this);
return $user;
} /* }}} */
function getAllUsers() { /* {{{ */
$queryStr = "SELECT * FROM tblUsers ORDER BY login";
$resArr = $this->db->getResultArray($queryStr);
if (is_bool($resArr) && $resArr == false)
return false;
$users = array();
for ($i = 0; $i < count($resArr); $i++) {
$user = new LetoDMS_User($resArr[$i]["id"], $resArr[$i]["login"], $resArr[$i]["pwd"], $resArr[$i]["fullName"], $resArr[$i]["email"], (isset($resArr["language"])?$resArr["language"]:NULL), (isset($resArr["theme"])?$resArr["theme"]:NULL), $resArr[$i]["comment"], $resArr[$i]["isAdmin"], $resArr[$i]["hidden"]);
$user->setDMS($this);
$users[$i] = $user;
}
return $users;
} /* }}} */
function addUser($login, $pwd, $fullName, $email, $language, $theme, $comment, $isAdmin=0, $isHidden=0) { /* {{{ */
if (is_object($this->getUserByLogin($login))) {
return false;
}
$queryStr = "INSERT INTO tblUsers (login, pwd, fullName, email, language, theme, comment, isAdmin, hidden) VALUES ('".$login."', '".$pwd."', '".$fullName."', '".$email."', '".$language."', '".$theme."', '".$comment."', '".$isAdmin."', '".$isHidden."')";
$res = $this->db->getResult($queryStr);
if (!$res)
return false;
return $this->getUser($this->db->getInsertID());
} /* }}} */
function getGroup($id) { /* {{{ */
if (!is_numeric($id))
die ("invalid groupid");
$queryStr = "SELECT * FROM tblGroups WHERE id = " . $id;
$resArr = $this->db->getResultArray($queryStr);
if (is_bool($resArr) && $resArr == false)
return false;
else if (count($resArr) != 1) //wenn, dann wohl eher 0 als > 1 ;-)
return false;
$resArr = $resArr[0];
$group = new LetoDMS_Group($resArr["id"], $resArr["name"], $resArr["comment"]);
$group->setDMS($this);
return $group;
} /* }}} */
function getGroupByName($name) { /* {{{ */
$queryStr = "SELECT `tblGroups`.* FROM `tblGroups` WHERE `tblGroups`.`name` = '".$name."'";
$resArr = $this->db->getResultArray($queryStr);
if (is_bool($resArr) && $resArr == false)
return false;
else if (count($resArr) != 1) //wenn, dann wohl eher 0 als > 1 ;-)
return false;
$resArr = $resArr[0];
$group = new LetoDMS_Group($resArr["id"], $resArr["name"], $resArr["comment"]);
$group->setDMS($this);
return $group;
} /* }}} */
function getAllGroups() { /* {{{ */
$queryStr = "SELECT * FROM tblGroups ORDER BY name";
$resArr = $this->db->getResultArray($queryStr);
if (is_bool($resArr) && $resArr == false)
return false;
$groups = array();
for ($i = 0; $i < count($resArr); $i++) {
$group = new LetoDMS_Group($resArr[$i]["id"], $resArr[$i]["name"], $resArr[$i]["comment"]);
$group->setDMS($this);
$groups[$i] = $group;
}
return $groups;
} /* }}} */
function addGroup($name, $comment) { /* {{{ */
if (is_object($this->getGroupByName($name))) {
return false;
}
$queryStr = "INSERT INTO tblGroups (name, comment) VALUES ('".$name."', '" . $comment . "')";
if (!$this->db->getResult($queryStr))
return false;
return $this->getGroup($this->db->getInsertID());
} /* }}} */
}
?>