DefaultLookup.inc
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<?php
/**
*
* Class DefaultLookup
*
* Represents the base class for any table in the database that ends in a _lookup
* i.e. any tables containing only an ID and name column
*
* @author Rob Cherry, Jam Warehouse (Pty) Ltd, South Africa
* @date 19 January 2003
* @package lib
*/
class DefaultLookup {
/** database table name */
var $sTableName;
/** primary key */
var $iId;
/** name value */
var $sName;
function DefaultLookup($sNewTableName, $sNewName) {
//object not stored yed
$this->iId = -1;
$this->sTableName = $sNewTableName;
$this->sName = $sNewName;
}
/**
* Get the primary key for this object
*
* @return int primary key for this object
*
*/
function getID() {
return $this->iId;
}
/**
* Get the name value for this object
*
* @return String name value for this object
*
*/
function getName() {
return $this->sName;
}
/**
* Set the name value for this object
*
* @param New name value
*
*/
function setName($sNewValue) {
$this->sName = $sNewValue;
}
/**
* Create the object in the database
*
* @return boolean true on successful creation, false otherwise and set $_SESSION["errorMessage"]
*
*/
function create() {
global $lang_err_database, $lang_err_object_exists;
//don't create the object if it's aready been created
if ($this->iId < 0) {
$sql = $default->db;
$result = $sql->query("INSERT INTO $this->sTableName (name) VALUES ( '". addslashes($this->sName) . "')");
if ($result) {
//set the primary key;
$this->iId = $sql->insert_id();
return true;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
$_SESSION["errorMessage"] = $lang_err_object_exists . "id = " . $this->iId . " table = $this->sTableName";
return false;
}
/**
* Update the entry in the database with the object's current values
*
* @return boolean true on successful update, false otherwise and set $_SESSION["errorMessage"]
*
*/
function update() {
global $lang_err_database, $lang_err_object_key;
//can only update if the object has been stored
if ($this->iId >= 0) {
$sql = $default->db;
$result = $sql->query("UPDATE $this->sTableName SET name = '" . addslashes($this->sName) . "' WHERE id = $this->iId");
if ($result) {
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 $lang_err_database, $lang_err_object_not_exist;
//can only delete and object if it has been stored already
if ($this->iId >= 0) {
$sql = $default->db;
$result = $sql->query("DELETE FROM $this->sTableName WHERE id = $this->iId");
if ($result) {
//reset the primary key
$this->iId = -1;
return true;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
$_SESSION["errorMessage"] = $lang_err_object_key;
return false;
}
/**
* Static function.
* Given a primary key and a tablename, will create
* the corresponding lookup object
*
* @param Database table to query
* @param Primary key of object to retrieve
*
* @return Lookup lookup object populated with relevant values
*/
function & get($sTableName, $iId) {
$sql = $default->db;
$result = $sql->query("SELECT * FROM $sTableName WHERE id = $iId");
if ($result) {
if ($sql->next_record()) {
$oLookup = & new DefaultLookup($sTableName, stripslashes($sql->f("name")));
$oLookup->iId = $iId;
return $oLookup;
}
$_SESSION["errorMessage"] = $lang_err_object_not_exist . "id = " . $iId . " table = $sTableName";
return false;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
}
?>