egroupware/resources/inc/class.resources_import_csv.inc.php

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2010-11-15 21:14:50 +01:00
<?php
/**
* eGroupWare import CSV plugin to import resources
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package resources
* @subpackage importexport
* @link http://www.egroupware.org
* @author Nathan Gray
* @copyright Nathan Gray
* @version $Id$
*/
/**
* class to import resources from CSV
*/
class resources_import_csv implements importexport_iface_import_plugin {
private static $plugin_options = array(
'fieldsep', // char
'charset', // string
'contact_owner', // int
'update_cats', // string {override|add} overides record
// with cat(s) from csv OR add the cat from
// csv file to exeisting cat(s) of record
'num_header_lines', // int number of header lines
'field_conversion', // array( $csv_col_num => conversion)
'field_mapping', // array( $csv_col_num => adb_filed)
'conditions', /* => array containing condition arrays:
'type' => exists, // exists
'string' => '#kundennummer',
'true' => array(
'action' => update,
'last' => true,
),
'false' => array(
'action' => insert,
'last' => true,
),*/
);
/**
* actions wich could be done to data entries
*/
protected static $actions = array( 'none', 'update', 'insert', 'delete', );
/**
* conditions for actions
*
* @var array
*/
protected static $conditions = array( 'exists' );
/**
* @var definition
*/
private $definition;
/**
* @var bo
*/
private $bo;
/**
* @var bool
*/
private $dry_run = false;
/**
* @var bool is current user admin?
*/
private $is_admin = false;
/**
* @var int
*/
private $user = null;
/**
* List of import errors
*/
protected $errors = array();
/**
* List of actions, and how many times that action was taken
*/
protected $results = array();
/**
* imports entries according to given definition object.
* @param resource $_stream
* @param string $_charset
* @param definition $_definition
*/
public function import( $_stream, importexport_definition $_definition ) {
$import_csv = new importexport_import_csv( $_stream, array(
'fieldsep' => $_definition->plugin_options['fieldsep'],
'charset' => $_definition->plugin_options['charset'],
));
$this->definition = $_definition;
// user, is admin ?
$this->is_admin = isset( $GLOBALS['egw_info']['user']['apps']['admin'] ) && $GLOBALS['egw_info']['user']['apps']['admin'];
$this->user = $GLOBALS['egw_info']['user']['account_id'];
// dry run?
$this->dry_run = isset( $_definition->plugin_options['dry_run'] ) ? $_definition->plugin_options['dry_run'] : false;
// fetch the resource bo
$this->bo = new resources_bo();
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// set FieldMapping.
$import_csv->mapping = $_definition->plugin_options['field_mapping'];
// set FieldConversion
$import_csv->conversion = $_definition->plugin_options['field_conversion'];
//check if file has a header lines
if ( isset( $_definition->plugin_options['num_header_lines'] ) && $_definition->plugin_options['num_header_lines'] > 0) {
$import_csv->skip_records($_definition->plugin_options['num_header_lines']);
} elseif(isset($_definition->plugin_options['has_header_line']) && $_definition->plugin_options['has_header_line']) {
// First method is preferred
$import_csv->skip_records(1);
}
// Start counting successes
$count = 0;
$this->results = array();
// Failures
$this->errors = array();
$types = importexport_export_csv::$types;
$types['select-bool'] = array('bookable');
$lookups = array();
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while ( $record = $import_csv->get_record() ) {
$success = false;
// don't import empty records
if( count( array_unique( $record ) ) < 2 ) continue;
// Automatically handle human friendly values
importexport_import_csv::convert($record, $types, 'resources', $lookups);
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if ( $_definition->plugin_options['conditions'] ) {
foreach ( $_definition->plugin_options['conditions'] as $condition ) {
$results = array();
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switch ( $condition['type'] ) {
// exists
case 'exists' :
if($record[$condition['string']]) {
$results = $this->bo->so->search(
array( $condition['string'] => $record[$condition['string']]),
False
);
}
if ( is_array( $results ) && count( array_keys( $results )) >= 1) {
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// apply action to all contacts matching this exists condition
$action = $condition['true'];
foreach ( (array)$results as $resource ) {
$record['res_id'] = $resource['res_id'];
if ( $_definition->plugin_options['update_cats'] == 'add' ) {
if ( !is_array( $resource['cat_id'] ) ) $resource['cat_id'] = explode( ',', $resource['cat_id'] );
if ( !is_array( $record['cat_id'] ) ) $record['cat_id'] = explode( ',', $record['cat_id'] );
$record['cat_id'] = implode( ',', array_unique( array_merge( $record['cat_id'], $resource['cat_id'] ) ) );
}
$success = $this->action( $action['action'], $record, $import_csv->get_current_position() );
}
} else {
$action = $condition['false'];
$success = ($this->action( $action['action'], $record, $import_csv->get_current_position() ));
}
break;
// not supported action
default :
die('condition / action not supported!!!');
break;
}
if ($action['last']) break;
}
} else {
// unconditional insert
$success = $this->action( 'insert', $record, $import_csv->get_current_position() );
}
if($success) $count++;
}
return $count;
}
/**
* perform the required action
*
* @param int $_action one of $this->actions
* @param array $_data contact data for the action
* @return bool success or not
*/
private function action ( $_action, $_data, $record_num = 0 ) {
switch ($_action) {
case 'none' :
return true;
case 'update' :
// Only update if there are changes
$old = $this->bo->read($_data['res_id']);
// Merge to deal with fields not in import record
$_data = array_merge($old, $_data);
// Fall through
case 'insert' :
if($_action == 'insert') {
// Backend doesn't like inserting with ID specified, it can overwrite
unset($_data['res_id']);
}
if ( $this->dry_run ) {
//print_r($_data);
$this->results[$_action]++;
return true;
} else {
$result = $this->bo->save( $_data );
if($result) {
$this->errors[$record_num] = $result;
return false;
} else {
$this->results[$_action]++;
return true;
}
}
default:
throw new egw_exception('Unsupported action');
}
}
/**
* returns translated name of plugin
*
* @return string name
*/
public static function get_name() {
return lang('Resources CSV import');
}
/**
* returns translated (user) description of plugin
*
* @return string descriprion
*/
public static function get_description() {
return lang("Imports a list of resources from a CSV file.");
}
/**
* retruns file suffix(s) plugin can handle (e.g. csv)
*
* @return string suffix (comma seperated)
*/
public static function get_filesuffix() {
return 'csv';
}
/**
* return etemplate components for options.
* @abstract We can't deal with etemplate objects here, as an uietemplate
* objects itself are scipt orientated and not "dialog objects"
*
* @return array (
* name => string,
* content => array,
* sel_options => array,
* preserv => array,
* )
*/
public function get_options_etpl() {
// lets do it!
}
/**
* returns etemplate name for slectors of this plugin
*
* @return string etemplate name
*/
public function get_selectors_etpl() {
// lets do it!
}
/**
* Returns errors that were encountered during importing
* Maximum of one error message per record, but you can append if you need to
*
* @return Array (
* record_# => error message
* )
*/
public function get_errors() {
return $this->errors;
}
/**
* Returns a list of actions taken, and the number of records for that action.
* Actions are things like 'insert', 'update', 'delete', and may be different for each plugin.
*
* @return Array (
* action => record count
* )
*/
public function get_results() {
return $this->results;
}
} // end of iface_export_plugin
?>