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