<?php
/**
*
* LICENSE
*
* This source file is subject to the new BSD license
* It is available through the world-wide-web at this URL:
* http://www.petala-azul.com/bsd.txt
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to geral@petala-azul.com so we can send you a copy immediately.
*
* @package Bvb_Grid
* @copyright Copyright (c) (http://www.petala-azul.com)
* @license http://www.petala-azul.com/bsd.txt New BSD License
* @version $Id: Csv.php 1011 2010-03-17 16:18:51Z bento.vilas.boas@gmail.com $
* @author Bento Vilas Boas <geral@petala-azul.com >
*/
class Bvb_Grid_Deploy_Csv extends Bvb_Grid implements Bvb_Grid_Deploy_Interface
{
protected $dir;
const OUTPUT = 'csv';
public $deploy;
/**
* Set true if data should be downloaded
*/
protected $downloadData = null;
/**
* Set true if data should be stored
*/
protected $storeData = null;
/**
* Storing file
*/
protected $outFile = null;
/*
*
*
* Optimize performance by setting best value for $this->setPagination(?);
* and setting options:
* set_time_limit
* memory_limit
* download: send data to directly to user
* save: save the file
* ?dir:
*
* @param array $data
*/
function __construct ($options)
{
$this->setPagination(500);
parent::__construct($options);
}
/**
* [Para podemros utiliza]
*
* @param string $var
* @param string $value
*/
function __set ($var, $value)
{
parent::__set($var, $value);
}
function buildTitltesCsv ($titles)
{
$grid = '';
foreach ($titles as $title) {
$grid .= '"' . strip_tags($title['value']) . '",';
}
return substr($grid, 0, - 1) . "\n";
}
function buildSqlexpCsv ($sql)
{
$grid = '';
if (is_array($sql)) {
foreach ($sql as $exp) {
$grid .= '"' . strip_tags($exp['value']) . '",';
}
}
return substr($grid, 0, - 1) . " \n";
}
function buildGridCsv ($grids)
{
$grid = '';
foreach ($grids as $value) {
foreach ($value as $final) {
$grid .= '"' . strip_tags($final['value']) . '",';
}
$grid = substr($grid, 0, - 1) . " \n";
}
return $grid;
}
/**
* Depending on settings store to file and/or directly upload
*/
protected function csvAddData ($data)
{
if ($this->downloadData) {
// send first headers
echo $data;
flush();
ob_flush();
}
if ($this->storeData) {
// open file handler
fwrite($this->outFile, $data);
}
}
function deploy ()
{
if (! in_array(self::OUTPUT, $this->_export)) {
echo $this->__("You dont' have permission to export the results to this format");
die();
}
$this->deploy['dir'] = rtrim($this->deploy['dir'], '/') . '/';
// apply options
if (isset($this->deploy['set_time_limit'])) {
// script needs time to proces huge amount of data (important)
set_time_limit($this->deploy['set_time_limit']);
}
if (isset($this->deploy['memory_limit'])) {
// adjust memory_limit if needed (not very important)
ini_set('memory_limit', $this->deploy['memory_limit']);
}
if (empty($this->deploy['name'])) {
$this->deploy['name'] = date('H_m_d_H_i_s');
}
if (substr($this->deploy['name'], - 4) == '.csv') {
$this->deploy['name'] = substr($this->deploy['name'], 0, - 4);
}
// decide if we should store data to file or send directly to user
$this->downloadData = $this->deploy['download'] == 1 ? 1 : false;
$this->storeData = $this->deploy['save'] == 1 ? 1 : false;
// prepare data
parent::deploy();
if ($this->downloadData) {
// send first headers
header('Content-type: text/plain; charset=' . $this->getCharEncoding());
header('Content-Disposition: attachment; filename="' .$this->deploy['name'] . '.csv"');
}
if ($this->storeData) {
// open file handler
$this->outFile = fopen($this->deploy['dir']. $this->deploy['name']. ".csv", "w");
}
// export header
$this->csvAddData(self::buildTitltesCsv(parent::_buildTitles()));
$i = 0;
do {
$i += $this->_pagination;
$this->csvAddData(self::buildGridCsv(parent::_buildGrid()));
$this->csvAddData(self::buildSqlexpCsv(parent::_buildSqlExp()));
// get next data
$this->getSource()->buildQueryLimit($this->_pagination, $i);
$this->_result = $this->getSource()->execute();
} while (count($this->_result));
if ($this->storeData) {
// close file handler
fclose($this->outFile);
} else {
die();
}
die();
return true;
}
}
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