Change Price Based on Cost Prive + Margin Fields

	function updateValuesSecure(&$action,&$possibleTables = array(),&$queryTables = array()){
		$db = JFactory::getDBO();
		$app = JFactory::getApplication();
		$tableType = explode('_',$action['type']);

		// Special cases
		if(preg_match('/order_product/',$action['type'])) $tableType = array('order_product');
		if($tableType[0] == 'joomla') $queryTables[] = $tableType[0].'_'.$tableType[1];
		else $queryTables[] = $tableType[0];

		// check if the column type match with the action type
		$mainFields = array();
		foreach($possibleTables as $possibleTable){
			if(!is_string($possibleTable)) continue;
			if(version_compare(JVERSION,'3.0','<')){
				if(preg_match('/joomla_/',$possibleTable)){
					$fieldsTable = $db->getTableFields('#__'.str_replace('joomla_','',$possibleTable));
					$fields = reset($fieldsTable);
//					foreach($fields as $key => $field){
//						$fields['joomla_'.$key] = $fields[$key];
//						unset($fields[$key]);
//					}
					$fieldsTable = $fields;
				}
				else{
					$fieldsTable = $db->getTableFields('#__hikashop_'.$possibleTable);
					$fields = reset($fieldsTable);
				}
			} else {
				if(preg_match('/joomla_/',$possibleTable)){
					$fields = $db->getTableColumns('#__'.str_replace('joomla_','',$possibleTable));
//					foreach($fields as $key => $field){
//						$fields['joomla_'.$key] = $fields[$key];
//						unset($fields[$key]);
//					}
				}
				else $fields = $db->getTableColumns('#__hikashop_'.$possibleTable);
			}
			$mainFields = array_merge($mainFields,$fields);
		}

		foreach($mainFields as $key => $field){
			$field = str_replace(',','',$field);
			if($key == $action['type']){
				switch($action['operation']){
					case 'int':
						if(in_array($field,array('boolean'))){
							 $app->enqueueMessage(JText::sprintf( 'WRONG_COLUMN_TYPE', $field));
							 $queryTables = '';
						}
						break;
					case 'float':
						if(in_array($field,array('int','boolean'))){
							 $app->enqueueMessage(JText::sprintf( 'WRONG_COLUMN_TYPE', $field));
							 $queryTables = '';
						}
						break;
					case 'string':
						if(!in_array($field,array('varchar','text','char'))){
							 $app->enqueueMessage(JText::sprintf( 'WRONG_COLUMN_TYPE', $field));
							 $queryTables = '';
						}
						break;
				}
			}
		}
		if($action['operation'] == 'int'){$value = (int)$action['value'];}
		elseif($action['operation'] == 'float'){$value = (float)$action['value'];}
		elseif($action['operation'] == 'string'){$value = $db->quote($action['value']);}
		elseif($action['operation'] == 'operation'){
			// Regex
			$symbols = array('%','+','-','/','*','(',')');
			$string = str_replace($symbols,'||',$action['value']);

			$entry = array();
			$entries = explode('||',$string);
			foreach($entries as $entry){
				$data = explode('.',$entry);
				if(!in_array($data[0],$possibleTables))
					continue;
				$strings[]['table'] = $data[0];
				$strings[]['column'] = $data[1];
			}
			$type = 'table';
			if(!empty($mainFields)){
				foreach($strings as $string){
					if(isset($string['table']) && $type == 'table'){
						if(!in_array($string['table'], $possibleTables)){
							$app->enqueueMessage(JText::sprintf('TABLE_NOT_EXIST',$string['table']));
							$queryTables = '';
							continue;
						}
						if(!in_array($string, $queryTables)){
							$queryTables[] = 'hk_'.$string;
						}
						$type = 'column';
					}elseif(isset($string['column']) && $type == 'column'){
						$colKey = array();
						foreach($mainFields as $key => $field){
							$colKey[] = $key;
						}
						if(!in_array($string['column'], $colKey)){
							$app->enqueueMessage(JText::sprintf('COLUMN_NOT_EXIST',$string['column']));
							$queryTables = '';
						}
						$type = 'table';
					}
				}
			}

			// if !number
			if(!preg_match('/^(?:\d+|\d*\.\d+)$/',$action['value'])){
				// if operation (ex: +5, -2) increment the value in the type selected table

				if(in_array($action['value'][0], array('+','-'))){
					$value = $action['type'].$action['value'];
				}
				// else add the prefix
				else{
					$value = $action['value'];
					// Group the available tables in only one entry
					$tables = array();
					foreach($strings as $string){
						if(isset($string['table'])){
							$tables[$string['table']] = $string['table'];
						}
					}
					// add the prefix
					foreach($tables as $table){
						$value = str_replace($table.'.','hk_'.$table.'.',$value);
					}
				}
				$value = strip_tags($value);
			}
			// default value
			else{
				$value = $db->quote($action['value']);
			}
		}else{$value = '';}
		return $value;
	}