Unit.inc
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<?php
/**
* Class Unit
* Represents a unit as per the database table units
*
* @author Mukhtar Dharsey
* @date 28 January 2003
* @package lib.unitmanagement
*/
class Unit {
/** object's primary key */
var $iId;
/** unit's name */
var $sName;
function Unit($sNewName) {
//object has not been created in database yet
$this->iId = -1;
$this->sName = $sNewName;
}
/**
* Get the object's primary key
*
* @return int object's primary key
*
*/
function getID() {
return $this->iId;
}
/**
* Get the unit's name
*
* @return String unit's name
*
*/
function getName() {
return $this->sName;
}
/**
* Set the unit's name
*
* @param String Unit's name
*
*/
function setName($sNewValue) {
$this->sName = $sNewValue;
}
/**
* Create the current object in the database
*
* @return boolean on successful store, false otherwise and set $_SESSION["errorMessage"]
*
*/
function create() {
global $default, $lang_err_database, $lang_err_object_exists;
//if the object hasn't been created
if ($this->iId < 0) { //check to see if name exsits
$sql = $default->db;
$query = "SELECT name FROM ". $default->owl_units_table ." WHERE name = '" . $this->sName . "'";
$sql->query($query);
$rows = $sql->num_rows($sql);
if ($rows > 0) {
// duplicate unit name
$_SESSION["errorMessage"] = "Unit::The name " . $this->sName . " is already in use!";
return false;
} else {
$result = $sql->query("INSERT INTO " . $default->owl_units_table . " (name) VALUES ('" . addslashes($this->sName) . "')");
if ($result) {
$this->iId = $sql->insert_id();
// create a new unit root folder
// FIXME: lookup the organisation for this unit and use the appropriate folder id for the org root folder
$oFolder = new Folder($this->sName, $this->sName . " Unit Root Folder", 1, $_SESSION["userID"], $this->iId);
if ($oFolder->create()) {
return true;
} else {
return false;
}
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
}
$_SESSION["errorMessage"] = $lang_err_object_exists . "id = " . $this->iId . " table = $default->owl_units_table";
return false;
}
/**
* Update the values in the database table with the object's current values
*
* @return boolean true on successful update, false otherwise and set $_SESSION["errorMessage"]
*
*/
function update() {
global $default, $lang_err_database, $lang_err_object_key;
//only update if the object has been stored
if ($this->iId > 0) {
$sql = $default->db;
// lookup current name before updating
$sOldName = lookupField($default->owl_units_table, "name", "id", $this->iId);
$result = $sql->query("UPDATE " . $default->owl_units_table . " SET name = '" . addslashes($this->sName) . "' WHERE id = $this->iId");
if ($result) {
// need to update the units root folder also
$iFolderID = Folder::getFolderID($sOldName);
// lookup the folder with the old unit name
$oFolder = Folder::get($iFolderID);
// folder name has changed, update the full_path
$sOldPath = $default->documentRoot . "/" . $oFolder->getFullPath() . "/" . $oFolder->getName();
// update the folder name
$oFolder->setName($this->sName);
$oFolder->setDescription($this->sName . " Unit Root Folder");
$sNewPath = $default->documentRoot . "/" . $oFolder->getFullPath() . "/" . $oFolder->getName();
if ($oFolder->update(true)) {
if (!PhysicalFolderManagement::renameFolder($sOldPath, $sNewPath)) {
//reverse the database changes if the physical rename failed
$oFolder->setName($sOldName);
$oFolder->update(true);
return false;
}
}
return true;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
$_SESSION["errorMessage"] = $lang_err_object_key;
return false;
}
/**
* Delete the current object from the database
*
* @return boolean true on successful deletion, false otherwise and set $_SESSION["errorMessage"]
*
*/
function delete() {
global $default, $lang_err_database, $lang_err_object_key;
//only delete the object if it exists in the database
if ($this->iId >= 0) {
//check to see if group is linked to a unit
$sql = $default->db;
$query = "SELECT unit_id FROM ". $default->owl_groups_units_table ." WHERE unit_id = '" . $this->iId . "'";
$sql->query($query);
$rows = $sql->num_rows($sql);
if ($rows > 0) {
// duplicate link exists
$_SESSION["errorMessage"] = "Group::The Group " . $this->sName . " exits!";
return false;
} else {
$sql = $default->db;
$result = $sql->query("DELETE FROM $default->owl_units_table WHERE id = $this->iId");
if ($result) {
return true;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
}
$_SESSION["errorMessage"] = $lang_err_object_key;
return false;
}
/**
* Static function.
* Given a web_documents primary key it will create a
* Unit object and populate it with the
* corresponding database values
*
* @return Unit populated Unit object on successful query, false otherwise and set $_SESSION["errorMessage"]
*/
function & get($iUnitID) {
global $default;
$sql = $default->db;
$result = $sql->query("SELECT * FROM $default->owl_units_table WHERE id = $iUnitID");
if ($result) {
if ($sql->next_record()) {
$oUnit = & new Unit(stripslashes($sql->f("name")));
$oUnit->iId = $iUnitID;
return $oUnit;
}
$_SESSION["errorMessage"] = $lang_err_object_not_exist . "id = " . $iUnitID . " table = $default->owl_units_table";
return false;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
/**
* static function
*
* gets the id of a unit using their name
*
* @param String The unit name
*/
function getUnitID($name) {
global $default;
$id = lookupID($default->owl_units_table, "name", $name);
$this->iId= $id;
}
/**
* static function
*
* gets the name of a unit using their id
*
* @param String The name
*
*/
function getUnitName($id) {
global $default;
$name = lookupField("$default->owl_units_table", "name", "id", $id );
$this->sName= $name;
}
/**
* Static function
* Get a list of web documents
*
* @param String Where clause (not required)
*
* @return Array array of Unit objects, false otherwise and set $_SESSION["errorMessage"]
*/
function getList($sWhereClause = null) {
global $default, $lang_err_database;
$aUnitArray;
settype($aUnitArray, "array");
$sql = $default->db;
$result = $sql->query("SELECT * FROM " . $default->owl_units_table . (isset($sWhereClause) ? " " . $sWhereClause : ""));
if ($result) {
$iCount = 0;
while ($sql->next_record()) {
$oUnit = & Unit::get($sql->f("id"));
$aUnitArray[$iCount] = $oUnit;
$iCount++;
}
return $aUnitArray;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
}
/**
* Static function
*
* Creates a unit object from an array
*
* @param Array Array of parameters. Must match order of parameters in constructor
*
* @return User user object
*/
function & unitCreateFromArray($aParameters) {
$oUnit = & new Unit($aParameters[0], $aParameters[1], $aParameters[2], $aParameters[3], $aParameters[4], $aParameters[5], $aParameters[6], $aParameters[7], $aParameters[8], $aParameters[9], $aParameters[10]);
return $oUnit;
}
?>