Current File : /home/pantanal/www/admin/includes/tng/tNG_delete.class.php
<?php
/*
Copyright (c) InterAKT Online 2000-2005
*/
/**
* This class is the "delete" implementation of the tNG_fields class.
* @access public
*/
class tNG_delete extends tNG_fields {
/**
* Constructor. Sets the connection, the database name and other default values.
* Also sets the transaction type.
* @param object KT_Connection &$connection the connection object
* @access public
*/
function tNG_delete(&$connection) {
parent::tNG_fields($connection);
$this->transactionType = '_delete';
$this->registerTrigger("BEFORE", "Trigger_Default_saveData", -1);
}
/**
* Prepares the delete SQL query to be executed
* @access protected
*/
function prepareSQL() {
tNG_log::log('tNG_delete', 'prepareSQL', 'begin');
parent::prepareSQL();
// check if we have a valid primaryKey
if (!$this->primaryKey) {
$ret = new tNG_error('DEL_NO_PK_SET', array(), array());
}
// check the primary key value
if (!isset($this->primaryKeyColumn['value'])) {
$ret = new tNG_error('DEL_NO_PK_VAL', array(), array());
}
$ret = null;
$sql = 'DELETE FROM ' . $this->table . ' WHERE ' . KT_escapeFieldName($this->primaryKey) . ' = ';
$sql .= KT_escapeForSql($this->primaryKeyColumn['value'], $this->primaryKeyColumn['type']);
$this->setSQL($sql);
tNG_log::log('tNG_delete', 'prepareSQL', 'end');
return $ret;
}
/**
* This function exits because the current class does not export a recordset.
* @access protected
*/
function getLocalRecordset() {
$this->setError(new tNG_error('DEL_NO_RS', array(), array()));
}
}
?>
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