egroupware_official/importexport/inc/class.export_csv.inc.php

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<?php
/**
* eGroupWare importexport
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package importexport
* @link http://www.egroupware.org
* @author Cornelius Weiss <nelius@cwtech.de>
* @copyright Cornelius Weiss <nelius@cwtech.de>
* @version $Id: $
*/
require_once('class.iface_export_record.inc.php');
require_once('class.import_export_helper_functions.inc.php');
require_once('class.iface_egw_record.inc.php');
/**
* class export_csv
* This an record exporter.
* An record is e.g. a single address or or single event.
* No mater where the records come from, at the end export_entry
* stores it into the stream
*/
class export_csv implements iface_export_record
{
/** Aggregations: */
/** Compositions: */
/**
* array with field mapping in form egw_field_name => exported_field_name
* @var array
*/
protected $mapping = array();
/**
* array with conversions to be done in form: egw_field_name => conversion_string
* @var array
*/
protected $conversion = array();
/**
* array holding the current record
* @access protected
*/
protected $record = array();
/**
* holds (charset) translation object
* @var object
*/
protected $translation;
/**
* charset of csv file
* @var string
*/
protected $csv_charset;
/**
* holds number of exported records
* @var unknown_type
*/
protected $num_of_records = 0;
/**
* stream resource of csv file
* @var resource
*/
protected $handle;
/**
* csv specific options
*
* @var array
*/
protected $csv_options = array(
'delimiter' => ';',
'enclosure' => '"',
);
/**
* constructor
*
* @param object _handle resource where records are exported to.
* @param string _charset charset the records are exported to.
* @param array _options options for specific backends
* @return bool
* @access public
*/
public function __construct( $_handle, $_charset, array $_options=array() ) {
$this->translation &= $GLOBALS['egw']->translation;
$this->handle = $_handle;
$this->csv_charset = $_charset;
if (!empty($_options)) {
$this->csv_options = array_merge($this->csv_options,$_options);
}
}
/**
* sets field mapping
*
* @param array $_mapping egw_field_name => csv_field_name
*/
public function set_mapping( array $_mapping) {
if ($this->num_of_records > 0) {
throw new Exception('Error: Field mapping can\'t be set during ongoing export!');
}
foreach ($_mapping as $egw_filed => $csv_field) {
$this->mapping[$egw_filed] = $this->translation->convert($csv_field, $this->csv_charset);
}
}
/**
* Sets conversion.
* See import_export_helper_functions::conversion.
*
* @param array $_conversion
*/
public function set_conversion( array $_conversion) {
$this->conversion = $_conversion;
}
/**
* exports a record into resource of handle
*
* @param iface_egw_record record
* @return bool
* @access public
*/
public function export_record( iface_egw_record $_record ) {
$record_data = $_record->get_record_array();
if (empty($this->mapping)) {
$this->mapping = array_combine(array_keys($record_data),array_keys($record_data));
}
if ($this->num_of_records == 0 && $this->csv_options['begin_with_fieldnames'] && !empty($this->mapping)) {
fputcsv($this->handle,array_values($this->mapping),$this->csv_options['delimiter'],$this->csv_options['enclosure']);
}
// do conversions
if ($this->conversion[$egw_field]) {
$record_data[$egw_field] = import_export_helper_functions::conversion($record_data,$this->conversion);
}
// do fieldmapping
foreach ($this->mapping as $egw_field => $csv_field) {
$this->record[$csv_field] = $record_data[$egw_field];
}
$this->fputcsv($this->handle,$this->record,$this->csv_options['delimiter'],$this->csv_options['enclosure']);
$this->num_of_records++;
$this->record = array();
}
/**
* Retruns total number of exported records.
*
* @return int
* @access public
*/
public function get_num_of_records() {
return $this->num_of_records;
}
/**
* destructor
*
* @return
* @access public
*/
public function __destruct() {
}
/**
* The php build in fputcsv function is buggy, so we need an own one :-(
*
* @param resource $filePointer
* @param array $dataArray
* @param char $delimiter
* @param char $enclosure
*/
protected function fputcsv($filePointer, $dataArray, $delimiter, $enclosure){
$string = "";
$writeDelimiter = false;
foreach($dataArray as $dataElement) {
if($writeDelimiter) $string .= $delimiter;
$string .= $enclosure . $dataElement . $enclosure;
$writeDelimiter = true;
}
$string .= "\n";
fwrite($filePointer, $string);
}
} // end export_csv_record
?>