/
CFDBTransformEndpoint.php
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/
CFDBTransformEndpoint.php
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<?php
/*
"Contact Form to Database" Copyright (C) 2011-2014 Michael Simpson (email : michael.d.simpson@gmail.com)
This file is part of Contact Form to Database.
Contact Form to Database 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 3 of the License, or
(at your option) any later version.
Contact Form to Database 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 Contact Form to Database.
If not, see <http://www.gnu.org/licenses/>.
*/
require_once('CFDBAbstractQueryResultsIterator.php');
require_once('CFDBDataIteratorDecorator.php');
class CFDBTransformEndpoint extends CFDBDataIteratorDecorator {
/**
* @var CFDBTransformEndpointQueryResultsIterator
*/
var $postProcessor;
function __construct() {
$this->postProcessor = new CFDBTransformEndpointQueryResultsIterator($this);
}
/**
* Fetch next row into variable
* @return bool if next row exists
*/
public function nextRow() {
if ($this->postProcessor->nextRow()) {
$this->row =& $this->source->row;
if (empty($this->displayColumns)) {
$this->displayColumns =& $this->source->displayColumns;
}
return true;
} else {
$this->row = null;
return false;
}
}
/**
* @return CFDBTransformEndpointQueryResultsIterator
*/
public function getPostProcessor() {
return $this->postProcessor;
}
}
class CFDBTransformEndpointQueryResultsIterator extends CFDBAbstractQueryResultsIterator {
/**
* @var CFDBTransformEndpoint
*/
var $endPoint;
function __construct($endPoint) {
$this->endPoint = $endPoint;
}
/**
* Execute the query
* @param $sql string query
* @param $queryOptions array associative
* @return void
*/
public function queryDataSource(&$sql, $queryOptions) {
// Do nothing. Data is in $this->$endPoint->source
}
/**
* Get the next row from query results
* @return array associative
*/
public function fetchRow() {
if($this->endPoint->source->nextRow()) {
return $this->endPoint->source->row;
}
return null;
}
/**
* @return boolean
*/
public function hasResults() {
// this is called by nextRow() in superclass
// return true and let next row sort it out
return true;
}
/**
* If you do not iterate over all the rows returned, be sure to call this function
* on all remaining rows to free resources.
* @return void
*/
public function freeResult() {
// Do nothing
}
}