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egroupware_official/phpgwapi/inc/class.egw_customfields.inc.php

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<?php
/**
* EGroupware API - managing custom-field definitions
*
* @link http://www.egroupware.org
* @author Ralf Becker <rb@stylite.de>
* @copyright 2014 by Ralf Becker <rb@stylite.de>
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @version $Id$
*/
/**
* Managing custom-field definitions
*/
class egw_customfields implements IteratorAggregate
{
/**
* Name of the customfields table
*/
const TABLE = 'egw_customfields';
/**
* Reference to the global db class
*
* @var egw_db
*/
static protected $db;
/**
* app the particular config class is instanciated for
*
* @var string
*/
protected $app;
/**
* should all the private fields be returned too, default no
*
* @var boolean
*/
protected $all_private_too=false;
/**
* Iterator initialised for custom fields
*
* @var ADORecordSet
*/
protected $iterator;
/**
* Constructor
*
* @param string $app
* @param boolean $all_private_too =false should all the private fields be returned too, default no
* @param string $only_type2 =null if given only return fields of type2 == $only_type2
* @param int $start =0
* @param int $num_rows =null
* @return array with customfields
*/
function __construct($app, $all_private_too=false, $only_type2=null, $start=0, $num_rows=null)
{
$this->app = $app;
$this->all_private_too = $all_private_too;
$query = array(
'cf_app' => $app,
);
if (!$all_private_too)
{
$memberships = $GLOBALS['egw']->accounts->memberships($GLOBALS['egw_info']['user']['account_id'], true);
$memberships[] = $GLOBALS['egw_info']['user']['account_id'];
$query[] = $this->commasep_match('cf_private', $memberships);
}
if ($only_type2)
{
$query[] = $this->commasep_match('cf_type2', $only_type2);
}
$this->iterator = self::$db->select(self::TABLE, '*', $query, __LINE__, __FILE__,
!isset($num_rows) ? false : $start, 'ORDER BY cf_order ASC', 'phpgwapi', $num_rows);
}
/**
* Return iterator required for IteratorAggregate
*
* @return egw_db_callback_iterator
*/
function getIterator()
{
return new egw_db_callback_iterator($this->iterator, function($_row)
{
$row = egw_db::strip_array_keys($_row, 'cf_');
$row['private'] = $row['private'] ? explode(',', $row['private']) : array();
$row['type2'] = $row['type2'] ? explode(',', $row['type2']) : array();
$row['values'] = json_decode($row['values'], true);
$row['needed'] = egw_db::from_bool($row['needed']);
return $row;
}, array(), function($row)
{
return $row['cf_name'];
});
}
/**
* Return SQL to match given values with comma-separated stored column
*
* @param string $column column name "cf_type2" or "cf_private"
* @param string|array $values
*/
protected function commasep_match($column, $values)
{
$to_or = array($column.' IS NULL');
foreach((array) $values as $value)
{
$to_or[] = self::$db->concat("','", $column, "','").' LIKE '.self::$db->quote('%,'.$value.',%');
}
return '('.implode(' OR ', $to_or).')';
}
/**
* Get customfield array of an application
*
* @param string $app
* @param boolean $all_private_too =false should all the private fields be returned too, default no
* @param string $only_type2 =null if given only return fields of type2 == $only_type2
* @return array with customfields
*/
public static function get($app, $all_private_too=false, $only_type2=null)
{
$cache_key = $app.':'.($all_private_too?'all':$GLOBALS['egw_info']['user']['account_id']).':'.$only_type2;
$cfs = egw_cache::getInstance(__CLASS__, $cache_key);
if (!isset($cfs))
{
$cfs = iterator_to_array(new egw_customfields($app, $all_private_too, $only_type2));
egw_cache::setInstance(__CLASS__, $cache_key, $cfs);
$cached = egw_cache::getInstance(__CLASS__, $app);
if (!in_array($cache_key, (array)$cached))
{
$cached[] = $cache_key;
egw_cache::setInstance(__CLASS__, $app, $cached);
}
}
//error_log(__METHOD__."('$app', $all_private_too, '$only_type2') returning fields: ".implode(', ', array_keys($cfs)));
return $cfs;
}
/**
* Check if any customfield uses html (type == 'htmlarea')
*
* @param string $app
* @param boolean $all_private_too =false should all the private fields be returned too, default no
* @param string $only_type2 =null if given only return fields of type2 == $only_type2
* @return boolen true: if there is a custom field useing html, false if not
*/
public static function use_html($app, $all_private_too=false, $only_type2=null)
{
foreach(self::get($app, $all_private_too, $only_type2) as $data)
{
if ($data['type'] == 'htmlarea') return true;
}
return false;
}
/**
* Non printable custom fields eg. UI elements
*
* @var array
*/
public static $non_printable_fields = array('button');
/**
* Format a single custom field value as string
*
* @param array $field field defintion incl. type
* @param string $value field value
* @return string formatted value
*/
public static function format(array $field, $value)
{
switch($field['type'])
{
case 'select-account':
if ($value)
{
$values = array();
foreach($field['rows'] > 1 ? explode(',', $value) : (array) $value as $value)
{
$values[] = common::grab_owner_name($value);
}
$value = implode(', ',$values);
}
break;
case 'checkbox':
$value = $value ? 'X' : '';
break;
case 'select':
case 'radio':
if (count($field['values']) == 1 && isset($field['values']['@']))
{
$field['values'] = self::get_options_from_file($field['values']['@']);
}
$values = array();
foreach($field['rows'] > 1 ? explode(',', $value) : (array) $value as $value)
{
$values[] = isset($field['values'][$value]) ? $field['values'][$value] : '#'.$value;
}
$value = implode(', ', $values);
break;
case 'date':
case 'date-time':
if ($value)
{
$format = $field['len'] ? $field['len'] : ($field['type'] == 'date' ? 'Y-m-d' : 'Y-m-d H:i:s');
$formats = preg_split('/[\\/. :-]/',$format);
$values = preg_split('/[\\/. :-]/', is_numeric($value) ? egw_time::to($value, $format) : $value);
if (count($formats) != count($values))
{
//error_log(__METHOD__."(".array2string($field).", value='$value') format='$format', formats=".array2string($formats).", values=".array2string($values));
$values = array_slice($values, 0, count($formats));
}
$date = array_combine($formats, $values);
$value = common::dateformatorder($date['Y'], $date['m'], $date['d'],true);
if (isset($date['H'])) $value .= ' '.common::formattime($date['H'], $date['i']);
}
break;
case 'htmlarea': // ToDo: EMail probably has a nicer html2text method
if ($value) $value = strip_tags(preg_replace('/<(br|p)[^>]*>/i', "\r\n", str_replace(array("\r", "\n"), '', $value)));
break;
case 'ajax_select': // ToDo: returns unchanged value for now
break;
default:
// handling for several link types
if ($value && in_array($field['type'], self::get_link_types()))
{
if ($field['type'] == 'link-entry' || strpos($value, ':') !== false)
{
list($app, $value) = explode(':', $value);
}
else
{
$app = $field['type'];
}
if ($value) $value = egw_link::title($app, $value);
}
break;
}
return $value;
}
/**
* Read the options of a 'select' or 'radio' custom field from a file
*
* For security reasons that file has to be relative to the eGW root
* (to not use that feature to explore arbitrary files on the server)
* and it has to be a php file setting one variable called options,
* (to not display it to anonymously by the webserver).
* The $options var has to be an array with value => label pairs, eg:
*
* <?php
* $options = array(
* 'a' => 'Option A',
* 'b' => 'Option B',
* 'c' => 'Option C',
* );
*
* @param string $file file name inside the eGW server root, either relative to it or absolute
* @return array in case of an error we return a single option with the message
*/
public static function get_options_from_file($file)
{
$options = array();
if (!($path = realpath($file[0] == '/' ? $file : EGW_SERVER_ROOT.'/'.$file)) || // file does not exist
substr($path,0,strlen(EGW_SERVER_ROOT)+1) != EGW_SERVER_ROOT.'/' || // we are NOT inside the eGW root
basename($path,'.php').'.php' != basename($path) || // extension is NOT .php
basename($path) == 'header.inc.php') // dont allow to include our header again
{
return array(lang("'%1' is no php file in the eGW server root (%2)!".': '.$path,$file,EGW_SERVER_ROOT));
}
include($path);
return $options;
}
/**
* Get the customfield types containing links
*
* @return array with customefield types as values
*/
public static function get_link_types()
{
static $link_types = null;
if (is_null($link_types))
{
$link_types = array_keys(array_intersect(egw_link::app_list('query'),egw_link::app_list('title')));
$link_types[] = 'link-entry';
}
return $link_types;
}
/**
* Check if there are links in the custom fields and update them
*
* This function have to be called manually by an application, if cf's linking
* to other entries should be stored as links too (beside as cf's).
*
* @param string $own_app own appname
* @param array $values new values including the custom fields
* @param array $old =null old values before the update, if existing
* @param string $id_name ='id' name/key of the (link-)id in $values
*/
public static function update_links($own_app,array $values,array $old=null,$id_name='id')
{
$link_types = self::get_link_types();
foreach(egw_customfields::get($own_app) as $name => $data)
{
if (!in_array($data['type'],$link_types)) continue;
// do we have a different old value --> delete that link
if ($old && $old['#'.$name] && $old['#'.$name] != $values['#'.$name])
{
if ($data['type'] == 'link-entry')
{
list($app,$id) = explode(':',$old['#'.$name]);
}
else
{
$app = $data['type'];
$id = $old['#'.$name];
}
egw_link::unlink(false,$own_app,$values[$id_name],'',$app,$id);
}
if ($data['type'] == 'link-entry')
{
list($app,$id) = explode(':',$values['#'.$name]);
}
else
{
$app = $data['type'];
$id = $values['#'.$name];
}
if ($id) // create new link, does nothing for already existing links
{
egw_link::link($own_app,$values[$id_name],$app,$id);
}
}
}
/**
* Save a single custom field and invalidate cache
*
* @param array $cf
*/
public static function update(array $cf)
{
$op = $cf['id'] ? 'update' : 'insert';
self::$db->$op(self::TABLE, array(
'cf_label' => $cf['label'],
'cf_type' => $cf['type'],
'cf_type2' => $cf['type2'] ? implode(',', $cf['type2']) : null,
'cf_help' => $cf['help'],
'cf_values' => $cf['values'] ? json_encode($cf['values']) : null,
'cf_len' => (string)$cf['len'] !== '' ? $cf['len'] : null,
'cf_rows' => (string)$cf['rows'] !== '' ? $cf['rows'] : null,
'cf_order' => $cf['order'],
'cf_needed' => $cf['needed'],
'cf_private' => $cf['private'] ? implode(',', $cf['private']) : null,
'cf_modifier' => $GLOBALS['egw_info']['user']['account_id'],
'cf_modified' => time(),
), array(
'cf_name' => $cf['name'],
'cf_app' => $cf['app'],
), __LINE__, __FILE__);
self::invalidate_cache($cf['app']);
}
/**
* Save all custom fields of an app
*
* @param string $app
* @param array $cfs
*/
public static function save($app, array $cfs)
{
$query = array('cf_app' => $app);
if ($cfs) $query[] = self::$db->expression(self::TABLE, 'NOT ', array('cf_name' => array_keys($cfs)));
self::$db->delete(self::TABLE, $query, __LINE__, __FILE__);
foreach($cfs as $name => $cf)
{
if (empty($cf['name'])) $cf['name'] = $name;
if (empty($cf['app'])) $cf['app'] = $app;
self::update($cf);
}
self::invalidate_cache($app);
}
/**
* Invalidate instance cache for all custom fields of given app
*
* @param string $app
*/
protected static function invalidate_cache($app)
{
if (($cached = egw_cache::getInstance(__CLASS__, $app)))
{
foreach($cached as $key)
{
egw_cache::unsetInstance(__CLASS__, $key);
}
egw_cache::unsetInstance(__CLASS__, $app);
}
}
/**
* Change account_id's of private custom-fields
*
* @param string $app
* @param array $ids2change from-id => to-id pairs
* @return integer number of changed ids
*/
public static function change_account_ids($app, array $ids2change)
{
$total = 0;
if (($cfs = self::get_customfields($app, true)))
{
foreach($cfs as &$data)
{
if ($data['private'])
{
$changed = 0;
foreach($data['private'] as &$id)
{
if (isset($ids2change[$id]))
{
$id = $ids2change[$id];
++$changed;
}
}
if ($changed)
{
self::update($data);
$total += $changed;
}
}
}
}
return $total;
}
/**
* Return names of custom fields containing account-ids
*
* @param string $app
* @return array account[-commasep] => array of name(s) pairs
*/
public static function get_account_cfs($app)
{
$types = array();
if (($cfs = self::get_customfields($app, true)))
{
foreach($cfs as $name => $data)
{
if ($data['type'] == 'select-account' || $data['type'] == 'home-accounts')
{
$types['account'.($data['rows'] > 1 ? '-commasep' : '')][] = $name;
}
}
}
return $types;
}
/**
* Initialise our db
*
* We use a reference here (no clone), as we no longer use egw_db::row() or egw_db::next_record()!
*
*/
public static function init_static()
{
if (is_object($GLOBALS['egw']->db))
{
self::$db = $GLOBALS['egw']->db;
}
else
{
self::$db = $GLOBALS['egw_setup']->db;
}
}
}
egw_customfields::init_static();