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<?php
/**
* @package ZOO
* @author YOOtheme http://www.yootheme.com
* @copyright Copyright (C) YOOtheme GmbH
* @license http://www.gnu.org/licenses/gpl.html GNU/GPL
*/
/**
* The export helper class.
*
* @package Component.Helpers
* @since 2.0
*/
class ExportHelper extends AppHelper {
/**
* Class constructor
*
* @param string $app App instance.
* @since 2.0
*/
public function __construct($app) {
parent::__construct($app);
// register paths
$this->app->path->register($this->app->path->path('classes:exporter'), 'exporter');
}
/**
* Creates an AppExporter instance
*
* @param string $type Type of AppExporter to create
*
* @return AppExporter
*
* @since 2.0
*/
public function create($type) {
$type = preg_replace('/[^A-Z0-9_\.-]/i', '', $type);
// load renderer class
$class = 'AppExporter'.$type;
$this->app->loader->register($class, 'exporter:'.strtolower($type).'.php');
return $this->app->object->create($class);
}
/**
* Get all exporters
*
* @param array $ignore Exporters to ignore
*
* @return array All AppExporters
*
* @since 2.0
*/
public function getExporters($ignore = array()) {
$ignore = (array) $ignore;
$exporters = array();
foreach ($this->app->path->files('exporter:', false, '/\.php$/') as $file) {
if ($instance = $this->create(basename($file, '.php'))) {
if (!in_array($instance->getName(), $ignore)) {
$exporters[] = $instance;
}
}
}
return $exporters;
}
/**
* Exports items of a type to a csv file
*
* @param Type $type The type object
*
* @return string File path, false if no items were found
*
* @since 2.0
*/
public function toCSV($type) {
$item_table = $this->app->table->item;
$type->getApplication()->getCategoryTree();
$data = array();
$i = 1;
$maxima = array();
foreach ($item_table->getByType($type->id, $type->getApplication()->id) as $item) {
// item properties
$data[$i]['Id'] = $item->id;
$data[$i]['Name'] = $item->name;
$data[$i]['Alias'] = $item->alias;
$data[$i]['Author Alias'] = $item->getAuthor();
$data[$i]['Created Date'] = $item->created;
// categories
$data[$i]['Category'] = array();
foreach ($item->getRelatedCategories() as $category) {
$name = $category->name.'|||'.$category->alias;
while (($category = $category->getParent()) && $category->id) {
$name = $category->name.'|||'.$category->alias."///$name";
}
$data[$i]['Category'][] = $name;
}
// tags
$data[$i]['Tag'] = $item->getTags();
// elements
foreach ($type->getElements() as $identifier => $element) {
if (!isset($item->elements[$identifier])) {
continue;
}
$name = $element->config->get('name') ? $element->config->get('name') : $element->getElementType();
switch ($element->getElementType()) {
case 'text':
case 'textarea':
case 'link':
case 'email':
case 'date':
$data[$i][$name] = array();
foreach ($item->elements[$identifier] as $self) {
$data[$i][$name][] = @$self['value'];
}
break;
case 'country':
$data[$i][$name] = @$item->elements[$identifier]['country'];
break;
case 'gallery':
$data[$i][$name] = @$item->elements[$identifier]['value'];
break;
case 'image':
case 'download':
$data[$i][$name] = @$item->elements[$identifier]['file'];
break;
case 'googlemaps':
$data[$i][$name] = @$item->elements[$identifier]['location'];
break;
}
}
foreach ($data[$i] as $key => $value) {
if (is_array($value)) {
$maxima[$key] = max(1, @$maxima[$key], count($value));
}
}
$item_table->unsetObject($item->id);
$i++;
}
if (empty($data)) {
return false;
}
// use maxima to pad arrays
foreach ($maxima as $key => $num) {
foreach (array_keys($data) as $i) {
$data[$i][$key] = array_pad($data[$i][$key], $num, '');
}
}
// set header
array_unshift($data, array());
foreach ($data[1] as $key => $value) {
$num = is_array($value) ? count($value) : 1;
$data[0] = array_merge($data[0], array_fill(0, max(1, $num), $key));
}
$file = rtrim($this->app->system->application->getCfg('tmp_path'), '\/')."/$type->id.csv";
if (($handle = fopen($file, "w")) !== false) {
foreach ($data as $row) {
fputcsv($handle, $this->app->data->create($row)->flattenRecursive());
}
fclose($handle);
} else {
throw new AppExporterException(sprintf('Unable to write to file %s.', $file));
}
return $file;
}
}
/**
* The AppExporter base class.
*
* @package Component.Helpers
* @since 2.0
*/
abstract class AppExporter {
/**
* App instance
*
* @var App
* @since 2.0
*/
public $app;
/**
* The data created during export
*
* @var array
* @since 2.0
*/
protected $_data;
/**
* The exporter name
*
* @var array
* @since 2.0
*/
protected $_name;
/**
* The category attributes that are being exported
*
* @var array
* @since 2.0
*/
public $category_attributes = array('parent', 'published', 'description', 'ordering');
/**
* The item attributes that are being exported
*
* @var array
* @since 2.0
*/
public $item_attributes = array('searchable', 'state', 'created', 'modified', 'hits', 'author', 'access', 'priority', 'publish_up', 'publish_down');
/**
* The comment attributes that are being exported
*
* @var array
* @since 2.0
*/
public $comment_attributes = array('parent_id', 'user_id', 'user_type', 'author', 'email', 'url', 'ip', 'created', 'content', 'state', 'username');
/**
* Class constructor
*
* @since 2.0
*/
public function __construct() {
$this->app = App::getInstance('zoo');
$this->_data = $this->app->data->create(array('categories' => array(), 'items' => array()));
}
/**
* Get exporter name
*
* @return string name
*
* @since 2.0
*/
public function getName() {
return $this->_name;
}
/**
* Get exporter type
*
* @return string type
*
* @since 2.0
*/
public function getType() {
return strtolower(str_replace('AppExporter', '', get_class($this)));
}
/**
* Check if exporter is enabled
* May be overloaded by the child class.
*
* @return boolean
*
* @since 2.0
*/
public function isEnabled() {
return true;
}
/**
* Do the export.
* Must be overloaded by the child class.
*
* @return string The export xml
*
* @since 2.0
*/
public function export() {
return (string) $this->_data;
}
/**
* Adds a category to the exporters data
*
* @param string $name Category name
* @param string $id Category id
* @param array $data Category data
*
* @return self
*
* @since 2.0
*/
protected function _addCategory($name, $id = '', $data = array()) {
if (empty($id)) {
$id = JFilterOutput::stringURLSafe($name);
}
while (isset($this->_data['categories'][$id])) {
$id .= '-2';
}
$data['name'] = $name;
$this->_data['categories'][$id] = $data;
return $this;
}
/**
* Adds an item to the exporters data
*
* @param string $name Item name
* @param string $id Item id
* @param array $group Item group
* @param array $data Item data
*
* @return self
*
* @since 2.0
*/
protected function _addItem($name, $id = '', $group = 'default', $data = array()) {
if (empty($id)) {
$id = JFilterOutput::stringURLSafe($name);
}
while (isset($this->_data['items'][$id])) {
$id .= '-2';
}
$data['group'] = $group;
$data['name'] = $name;
$this->_data['items'][$id] = $data;
return $this;
}
}
/**
* AppExporterException identifies an Exception in the AppExporter class
* @see AppExporter
*/
class AppExporterException extends AppException {}