EGroupware / egroupware

calendar/inc/class.calendar_uiforms.inc.php

Spacing +479 added lines, -481 removed lines

@@ -54,18 +54,18 @@ 
 	 *
 	 * @var locktime in seconds
 	 */
-	var $locktime_default=1;
+	var $locktime_default = 1;
 
 	/**
 	 * Constructor
 	 */
 	function __construct()
 	{
-		parent::__construct(true);	// call the parent's constructor
+		parent::__construct(true); // call the parent's constructor
 
-		for ($n=15; $n <= 16*60; $n+=($n < 60 ? 15 : ($n < 240 ? 30 : ($n < 600 ? 60 : 120))))
+		for ($n = 15; $n <= 16 * 60; $n += ($n < 60 ? 15 : ($n < 240 ? 30 : ($n < 600 ? 60 : 120))))
 		{
-			$this->durations[$n*60] = sprintf('%d:%02d',$n/60,$n%60);
+			$this->durations[$n * 60] = sprintf('%d:%02d', $n / 60, $n % 60);
 		}
 	}
 
@@ -77,11 +77,10 @@ 
 	function &default_add_event()
 	{
 		$extra_participants = $_GET['participants'] ?
-			(!is_array($_GET['participants']) ? explode(',',$_GET['participants']) : $_GET['participants']) :
-			array();
+			(!is_array($_GET['participants']) ? explode(',', $_GET['participants']) : $_GET['participants']) : array();
 
 		// if participant is a contact, add its link title as title
-		foreach($extra_participants as $uid)
+		foreach ($extra_participants as $uid)
 		{
 			if ($uid[0] == 'c')
 			{
@@ -93,14 +92,14 @@ 
 		if (isset($_GET['owner']))
 		{
 			$owner = $_GET['owner'];
-			if(!is_array($owner) && strpos($owner, ','))
+			if (!is_array($owner) && strpos($owner, ','))
 			{
-				$owner = explode(',',$owner);
+				$owner = explode(',', $owner);
 			}
-			if(is_array($owner))
+			if (is_array($owner))
 			{
 				// old behavior "selected" should also be used for not set preference, therefore we need to test for !== '0'
-				if($this->cal_prefs['default_participant'] !== '0' || count($extra_participants) === 0 && count($owner) === 1)
+				if ($this->cal_prefs['default_participant'] !== '0' || count($extra_participants) === 0 && count($owner) === 1)
 				{
 					$extra_participants += $owner;
 				}
@@ -118,18 +117,18 @@ 
 		}
 
 		if (!$owner || !is_numeric($owner) || $GLOBALS['egw']->accounts->get_type($owner) != 'u' ||
-			!$this->bo->check_perms(Acl::ADD,0,$owner))
+			!$this->bo->check_perms(Acl::ADD, 0, $owner))
 		{
 			if ($owner)	// make an owner who is no user or we have no add-rights a participant
 			{
-				if(!is_array($owner))
+				if (!is_array($owner))
 				{
-					$owner = explode(',',$owner);
+					$owner = explode(',', $owner);
 				}
 				// if we come from ressources we don't need any users selected in calendar
 				if (!isset($_GET['participants']) || $_GET['participants'][0] != 'r')
 				{
-					foreach($owner as $uid)
+					foreach ($owner as $uid)
 					{
 						$extra_participants[] = $uid;
 					}
@@ -139,77 +138,77 @@ 
 		}
 		//error_log("this->owner=$this->owner, _GET[owner]=$_GET[owner], user=$this->user => owner=$owner, extra_participants=".implode(',',$extra_participants).")");
 
-		if(isset($_GET['start']))
+		if (isset($_GET['start']))
 		{
 			$start = Api\DateTime::to($_GET['start'], 'ts');
 		}
 		else
 		{
 			$start = $this->bo->date2ts(array(
-				'full' => isset($_GET['date']) && (int) $_GET['date'] ? (int) $_GET['date'] : $this->date,
-				'hour' => (int) (isset($_GET['hour']) ? $_GET['hour'] : $this->bo->cal_prefs['workdaystarts']),
-				'minute' => (int) $_GET['minute'],
+				'full' => isset($_GET['date']) && (int)$_GET['date'] ? (int)$_GET['date'] : $this->date,
+				'hour' => (int)(isset($_GET['hour']) ? $_GET['hour'] : $this->bo->cal_prefs['workdaystarts']),
+				'minute' => (int)$_GET['minute'],
 			));
 		}
 		//echo "<p>_GET[date]=$_GET[date], _GET[hour]=$_GET[hour], _GET[minute]=$_GET[minute], this->date=$this->date ==> start=$start=".date('Y-m-d H:i',$start)."</p>\n";
 
 		$participant_types['u'] = $participant_types = $participants = array();
-		foreach($extra_participants as $uid)
+		foreach ($extra_participants as $uid)
 		{
-			if (isset($participants[$uid])) continue;	// already included
+			if (isset($participants[$uid])) continue; // already included
 
-			if (!$this->bo->check_acl_invite($uid)) continue;	// no right to invite --> ignored
+			if (!$this->bo->check_acl_invite($uid)) continue; // no right to invite --> ignored
 
 			if (is_numeric($uid))
 			{
 				$participants[$uid] = $participant_types['u'][$uid] =
-					calendar_so::combine_status($uid == $this->user ? 'A' : 'U',1,
-					($uid == $this->user || ($uid == $owner && $this->bo->check_perms(Acl::ADD,0,$owner))) ? 'CHAIR' : 'REQ-PARTICIPANT');
+					calendar_so::combine_status($uid == $this->user ? 'A' : 'U', 1,
+					($uid == $this->user || ($uid == $owner && $this->bo->check_perms(Acl::ADD, 0, $owner))) ? 'CHAIR' : 'REQ-PARTICIPANT');
 			}
 			elseif (is_array($this->bo->resources[$uid[0]]))
 			{
 				// Expand mailing lists
-				if($uid[0] == 'l')
+				if ($uid[0] == 'l')
 				{
-					foreach($this->bo->enum_mailing_list($uid) as $contact)
+					foreach ($this->bo->enum_mailing_list($uid) as $contact)
 					{
-						$participants[$contact] = $participant_types['c'][substr($contact,1)] =
-							calendar_so::combine_status('U',1,'REQ-PARTICIPANT');
+						$participants[$contact] = $participant_types['c'][substr($contact, 1)] =
+							calendar_so::combine_status('U', 1, 'REQ-PARTICIPANT');
 					}
 					continue;
 				}
 				// if contact is a user, use the user instead (as the GUI)
-				if ($uid[0] == 'c' && ($account_id = $GLOBALS['egw']->accounts->name2id(substr($uid,1),'person_id')))
+				if ($uid[0] == 'c' && ($account_id = $GLOBALS['egw']->accounts->name2id(substr($uid, 1), 'person_id')))
 				{
 					$uid = $account_id;
 					$participants[$uid] = $participant_types['u'][$uid] =
-						calendar_so::combine_status($uid == $this->user ? 'A' : 'U',1,
-						($uid == $this->user || ($uid == $owner && $this->bo->check_perms(Acl::ADD,0,$owner))) ? 'CHAIR' : 'REQ-PARTICIPANT');
+						calendar_so::combine_status($uid == $this->user ? 'A' : 'U', 1,
+						($uid == $this->user || ($uid == $owner && $this->bo->check_perms(Acl::ADD, 0, $owner))) ? 'CHAIR' : 'REQ-PARTICIPANT');
 					continue;
 				}
 				$res_data = $this->bo->resources[$uid[0]];
-				list($id,$quantity) = explode(':',substr($uid,1));
-				if (($status = $res_data['new_status'] ? ExecMethod($res_data['new_status'],$id) : 'U'))
+				list($id, $quantity) = explode(':', substr($uid, 1));
+				if (($status = $res_data['new_status'] ? ExecMethod($res_data['new_status'], $id) : 'U'))
 				{
 					$participants[$uid] = $participant_types[$uid[0]][$id] =
-						calendar_so::combine_status($status,$quantity,'REQ-PARTICIPANT');
+						calendar_so::combine_status($status, $quantity, 'REQ-PARTICIPANT');
 				}
 			}
 		}
 		if (!$participants)	// if all participants got removed, include current user
 		{
-			$participants[$this->user] = $participant_types['u'][$this->user] = calendar_so::combine_status('A',1,'CHAIR');
+			$participants[$this->user] = $participant_types['u'][$this->user] = calendar_so::combine_status('A', 1, 'CHAIR');
 		}
-		if(isset($_GET['cat_id']))
+		if (isset($_GET['cat_id']))
 		{
-			$cat_id = explode(',',$_GET['cat_id']);
-			foreach($cat_id as &$cat)
+			$cat_id = explode(',', $_GET['cat_id']);
+			foreach ($cat_id as &$cat)
 			{
 				$cat = (int)$cat;
 			}
 		}
-		$duration = isset($_GET['duration']) ? (int)$_GET['duration'] : (int) $this->bo->cal_prefs['defaultlength']*60;
-		if(isset($_GET['end']))
+		$duration = isset($_GET['duration']) ? (int)$_GET['duration'] : (int)$this->bo->cal_prefs['defaultlength'] * 60;
+		if (isset($_GET['end']))
 		{
 			$end = Api\DateTime::to($_GET['end'], 'ts');
 			$duration = $end - $start;
@@ -227,9 +226,9 @@ 
 		if ((string)$this->cal_prefs[$alarm_pref] !== '')
 		{
 			$offset = 60 * $this->cal_prefs[$alarm_pref];
-			$alarms[1] =  array(
+			$alarms[1] = array(
 				'default' => 1,
-				'offset' => $offset ,
+				'offset' => $offset,
 				'time'   => $start - $offset,
 				'all'    => false,
 				'owner'  => $owner,
@@ -244,7 +243,7 @@ 
 			'start' => $start,
 			'end'   => $end,
 			'tzid'  => $this->bo->common_prefs['tz'],
-			'priority' => 2,	// normal
+			'priority' => 2, // normal
 			'public'=> $this->cal_prefs['default_private'] ? 0 : 1,
 			'alarm' => $alarms,
 			'recur_exception' => array(),
@@ -263,7 +262,7 @@ 
 	{
 		if (!is_array($content))	// redirect from etemplate, if POST empty
 		{
-			return $this->edit(null,null,strip_tags($_GET['msg']));
+			return $this->edit(null, null, strip_tags($_GET['msg']));
 		}
 		// clear notification errors
 		notifications::errors(true);
@@ -277,22 +276,22 @@ 
 		$update_type = $content['id'] ? ($content['recur_type'] == MCAL_RECUR_NONE ? 'update' : 'edit') : 'add';
 
 		list($button) = @each($content['button']);
-		if (!$button && $content['action']) $button = $content['action'];	// action selectbox
+		if (!$button && $content['action']) $button = $content['action']; // action selectbox
 		unset($content['button']); unset($content['action']);
 
 		$view = $content['view'];
 		if ($button == 'ical')
 		{
-			$msg = $this->export($content['id'],true);
+			$msg = $this->export($content['id'], true);
 		}
 		// delete a recur-exception
 		if ($content['recur_exception']['delete_exception'])
 		{
 			list($date) = each($content['recur_exception']['delete_exception']);
 			// eT2 converts time to
-			if (!is_numeric($date)) $date = Api\DateTime::to (str_replace('Z','', $date), 'ts');
+			if (!is_numeric($date)) $date = Api\DateTime::to(str_replace('Z', '', $date), 'ts');
 			unset($content['recur_exception']['delete_exception']);
-			if (($key = array_search($date,$content['recur_exception'])) !== false)
+			if (($key = array_search($date, $content['recur_exception'])) !== false)
 			{
 				// propagate the exception to a single event
 				$recur_exceptions = $this->bo->so->get_related($content['uid']);
@@ -302,7 +301,7 @@ 
 							$exception['recurrence'] != $content['recur_exception'][$key]) continue;
 					$exception['uid'] = Api\CalDAV::generate_uid('calendar', $id);
 					$exception['reference'] = $exception['recurrence'] = 0;
-					$this->bo->update($exception, true, true,false,true,$messages,$content['no_notifications']);
+					$this->bo->update($exception, true, true, false, true, $messages, $content['no_notifications']);
 					break;
 				}
 				unset($content['recur_exception'][$key]);
@@ -343,7 +342,7 @@ 
 			$def_alarm = $this->cal_prefs['default-alarm'.($content['whole_day'] ? '-wholeday' : '')];
 			if ((string)$def_alarm === '')
 			{
-				unset($content['alarm'][1]);	// '' = no alarm on whole day --> delete it
+				unset($content['alarm'][1]); // '' = no alarm on whole day --> delete it
 			}
 			else
 			{
@@ -365,7 +364,7 @@ 
 			$offset = 60 * $def_alarm;
 			array_unshift($content['alarm'], array(
 				'default' => 1,
-				'offset' => $offset ,
+				'offset' => $offset,
 				'time'   => $content['start'] - $offset,
 				'all'    => false,
 				'owner'  => 0,
@@ -378,7 +377,7 @@ 
 		unset($event['alarm']['delete_alarm']);
 		unset($event['duration']);
 
-		if (in_array($button,array('ignore','freetime','reedit','confirm_edit_series')))
+		if (in_array($button, array('ignore', 'freetime', 'reedit', 'confirm_edit_series')))
 		{
 			// no conversation necessary, event is already in the right format
 		}
@@ -398,7 +397,7 @@ 
 			if ($event['recur_type'] == MCAL_RECUR_NONE && $event['recur_data']) $event['recur_type'] = MCAL_RECUR_WEEKLY;
 			if ($event['recur_type'] == MCAL_RECUR_WEEKLY && !$event['recur_data'])
 			{
-				$event['recur_data'] = 1 << (int)date('w',$event['start']);
+				$event['recur_data'] = 1 << (int)date('w', $event['start']);
 			}
 			if ($event['recur_type'] != MCAL_RECUR_NONE && !isset($event['recur_enddate']))
 			{
@@ -410,9 +409,9 @@ 
 
 				$event['participants'] = $event['participant_types'] = array();
 
-				foreach($content['participants'] as $key => $data)
+				foreach ($content['participants'] as $key => $data)
 				{
-					switch($key)
+					switch ($key)
 					{
 						case 'delete':		// handled in default
 						case 'quantity':	// handled in new_resource
@@ -421,7 +420,7 @@ 
 						case 'status_date':
 							break;
 						case 'participant':
-							foreach($data as $participant)
+							foreach ($data as $participant)
 							{
 								if (is_null($participant))
 								{
@@ -430,17 +429,17 @@ 
 
 								// email or rfc822 addresse (eg. "Ralf Becker <ralf@domain.com>")
 								$email = array();
-								if(preg_match('/^(.*<)?([a-z0-9_.-]+@[a-z0-9_.-]{5,})>?$/i',$participant,$email))
+								if (preg_match('/^(.*<)?([a-z0-9_.-]+@[a-z0-9_.-]{5,})>?$/i', $participant, $email))
 								{
-									$status = calendar_so::combine_status('U',$content['participants']['quantity'],$content['participants']['role']);
-									if (($data = $GLOBALS['egw']->accounts->name2id($email[2],'account_email')) && $this->bo->check_acl_invite($data))
+									$status = calendar_so::combine_status('U', $content['participants']['quantity'], $content['participants']['role']);
+									if (($data = $GLOBALS['egw']->accounts->name2id($email[2], 'account_email')) && $this->bo->check_acl_invite($data))
 									{
 										$event['participants'][$data] = $event['participant_types']['u'][$data] = $status;
 									}
-									elseif ((list($data) = ExecMethod2('addressbook.addressbook_bo.search',array(
+									elseif ((list($data) = ExecMethod2('addressbook.addressbook_bo.search', array(
 										'email' => $email[2],
 										'email_home' => $email[2],
-									),true,'','','',false,'OR')))
+									), true, '', '', '', false, 'OR')))
 									{
 										$event['participants']['c'.$data['id']] = $event['participant_types']['c'][$data['id']] = $status;
 									}
@@ -451,7 +450,7 @@ 
 								}
 								else
 								{
-									if(is_numeric($participant))
+									if (is_numeric($participant))
 									{
 										$uid = $participant;
 										$id = $participant;
@@ -460,12 +459,12 @@ 
 									else
 									{
 										$uid = $participant;
-										$id = substr($participant,1);
+										$id = substr($participant, 1);
 										$resource = $this->bo->resources[$participant[0]];
 									}
-									if(!$this->bo->check_acl_invite($uid))
+									if (!$this->bo->check_acl_invite($uid))
 									{
-										if(!$msg_permission_denied_added)
+										if (!$msg_permission_denied_added)
 										{
 											$msg .= lang('Permission denied!');
 											$msg_permission_denied_added = true;
@@ -475,20 +474,19 @@ 
 
 									$type = $resource['type'];
 									$status = isset($this->bo->resources[$type]['new_status']) ?
-										ExecMethod($this->bo->resources[$type]['new_status'],$id) :
-										($uid == $this->bo->user ? 'A' : 'U');
+										ExecMethod($this->bo->resources[$type]['new_status'], $id) : ($uid == $this->bo->user ? 'A' : 'U');
 
 									// Expand mailing lists
-									if($type == 'l')
+									if ($type == 'l')
 									{
 										// Ignore ACL here, allow inviting anyone in the list
-										foreach($this->bo->enum_mailing_list($participant, true) as $contact)
+										foreach ($this->bo->enum_mailing_list($participant, true) as $contact)
 										{
 											// Mailing lists can contain users, so allow for that possibility
 											$_type = is_numeric($contact) ? '' : $contact[0];
-											$_uid = is_numeric($contact) ? $contact : substr($contact,1);
+											$_uid = is_numeric($contact) ? $contact : substr($contact, 1);
 											$event['participants'][$contact] = $event['participant_types'][$_type][$_uid] =
-												calendar_so::combine_status($status,$content['participants']['quantity'],$content['participants']['role']);
+												calendar_so::combine_status($status, $content['participants']['quantity'], $content['participants']['role']);
 										}
 										continue;
 									}
@@ -498,8 +496,8 @@ 
 										// todo check real availability = maximum - already booked quantity
 										if (isset($res_info['useable']) && $content['participants']['quantity'] > $res_info['useable'])
 										{
-											$msg .= lang('Maximum available quantity of %1 exceeded!',$res_info['useable']);
-											foreach(array('quantity','resource','role') as $n)
+											$msg .= lang('Maximum available quantity of %1 exceeded!', $res_info['useable']);
+											foreach (array('quantity', 'resource', 'role') as $n)
 											{
 												$event['participants'][$n] = $content['participants'][$n];
 											}
@@ -508,7 +506,7 @@ 
 										else
 										{
 											$event['participants'][$uid] = $event['participant_types'][$type][$id] =
-												calendar_so::combine_status($status,$content['participants']['quantity'],$content['participants']['role']);
+												calendar_so::combine_status($status, $content['participants']['quantity'], $content['participants']['role']);
 										}
 									}
 								}
@@ -522,15 +520,15 @@ 
 							break;
 
 						default:		// existing participant row
-							if (!is_array($data)) continue;	// widgets in participant tab, above participant list
+							if (!is_array($data)) continue; // widgets in participant tab, above participant list
 							$quantity = $status = $role = null;
-							foreach(array('uid','status','quantity','role') as $name)
+							foreach (array('uid', 'status', 'quantity', 'role') as $name)
 							{
 								$$name = $data[$name];
 							}
 							if ($content['participants']['delete'][$uid] || $content['participants']['delete'][md5($uid)])
 							{
-								$uid = false;	// entry has been deleted
+								$uid = false; // entry has been deleted
 							}
 							elseif ($uid)
 							{
@@ -541,27 +539,27 @@ 
 								}
 								else
 								{
-									$id = substr($uid,1);
+									$id = substr($uid, 1);
 									$type = $uid[0];
 								}
 								if ($data['old_status'] != $status && !(!$data['old_status'] && $status == 'G'))
 								{
 									//echo "<p>$uid: status changed '$data[old_status]' --> '$status<'/p>\n";
 									$new_status = calendar_so::combine_status($status, $quantity, $role);
-									if ($this->bo->set_status($event['id'],$uid,$new_status,isset($content['edit_single']) ? $content['participants']['status_date'] : 0, false, true, $content['no_notifications']))
+									if ($this->bo->set_status($event['id'], $uid, $new_status, isset($content['edit_single']) ? $content['participants']['status_date'] : 0, false, true, $content['no_notifications']))
 									{
 										// Update main window
 										$d = new Api\DateTime($content['edit_single'], Api\DateTime::$user_timezone);
 										$client_updated = $this->update_client($event['id'], $d);
 
 										// refreshing the calendar-view with the changed participant-status
-										if($event['recur_type'] != MCAL_RECUR_NONE)
+										if ($event['recur_type'] != MCAL_RECUR_NONE)
 										{
 											$msg = lang('Status for all future scheduled days changed');
 										}
 										else
 										{
-											if(isset($content['edit_single']))
+											if (isset($content['edit_single']))
 											{
 												$msg = lang('Status for this particular day changed');
 												// prevent accidentally creating a real exception afterwards
@@ -582,7 +580,7 @@ 
 										if ($status == 'R' && $event['alarm'])
 										{
 											// remove from bo->set_status deleted alarms of rejected users from UI too
-											foreach($event['alarm'] as $alarm_id => $alarm)
+											foreach ($event['alarm'] as $alarm_id => $alarm)
 											{
 												if ((string)$alarm['owner'] === (string)$uid)
 												{
@@ -595,7 +593,7 @@ 
 								if ($uid && $status != 'G')
 								{
 									$event['participants'][$uid] = $event['participant_types'][$type][$id] =
-										calendar_so::combine_status($status,$quantity,$role);
+										calendar_so::combine_status($status, $quantity, $role);
 								}
 							}
 							break;
@@ -614,26 +612,26 @@ 
 			'tabs'			=> $content['tabs'],
 			'template'      => $content['template'],
 		);
-		$noerror=true;
+		$noerror = true;
 
 		//error_log(__METHOD__.$button.'#'.array2string($content['edit_single']).'#');
 
 		$ignore_conflicts = $status_reset_to_unknown = false;
 
-		switch((string)$button)
+		switch ((string)$button)
 		{
 			case 'ignore':
 				$ignore_conflicts = true;
-				$button = $event['button_was'];	// save or apply
+				$button = $event['button_was']; // save or apply
 				unset($event['button_was']);
 				break;
 
 		}
 
-		switch((string)$button)
+		switch ((string)$button)
 		{
 		case 'exception':	// create an exception in a recuring event
-			$msg = $this->_create_exception($event,$preserv);
+			$msg = $this->_create_exception($event, $preserv);
 			break;
 
 		case 'copy':	// create new event with copied content, some content need to be unset to make a "new" event
@@ -644,29 +642,29 @@ 
 			unset($event['recurrence']);
 			unset($preserv['recurrence']);
 			unset($event['recur_exception']);
-			unset($event['edit_single']);	// in case it has been set
+			unset($event['edit_single']); // in case it has been set
 			unset($event['modified']);
 			unset($event['modifier']);
 			unset($event['caldav_name']);
-			$event['owner'] = !(int)$event['owner'] || !$this->bo->check_perms(Acl::ADD,0,$event['owner']) ? $this->user : $event['owner'];
+			$event['owner'] = !(int)$event['owner'] || !$this->bo->check_perms(Acl::ADD, 0, $event['owner']) ? $this->user : $event['owner'];
 
 			// Clear participant stati
-			foreach($event['participant_types'] as $type => &$participants)
+			foreach ($event['participant_types'] as $type => &$participants)
 			{
-				foreach($participants as $id => &$p_response)
+				foreach ($participants as $id => &$p_response)
 				{
-					if($type == 'u' && $id == $event['owner']) continue;
+					if ($type == 'u' && $id == $event['owner']) continue;
 					calendar_so::split_status($p_response, $quantity, $role);
 					// if resource defines callback for status of new status (eg. Resources app acknowledges direct booking acl), call it
-					$status = isset($this->bo->resources[$type]['new_status']) ? ExecMethod($this->bo->resources[$type]['new_status'],$id) : 'U';
-					$p_response = calendar_so::combine_status($status,$quantity,$role);
+					$status = isset($this->bo->resources[$type]['new_status']) ? ExecMethod($this->bo->resources[$type]['new_status'], $id) : 'U';
+					$p_response = calendar_so::combine_status($status, $quantity, $role);
 				}
 			}
 
 			// Copy alarms
 			if (is_array($event['alarm']))
 			{
-				foreach($event['alarm'] as $n => &$alarm)
+				foreach ($event['alarm'] as $n => &$alarm)
 				{
 					unset($alarm['id']);
 					unset($alarm['cal_id']);
@@ -676,7 +674,7 @@ 
 			// Get links to be copied
 			// With no ID, $content['link_to']['to_id'] is used
 			$content['link_to']['to_id'] = array('to_app' => 'calendar', 'to_id' => 0);
-			foreach(Link::get_links('calendar', $content['id']) as $link)
+			foreach (Link::get_links('calendar', $content['id']) as $link)
 			{
 				if ($link['app'] != Link::VFS_APPNAME)
 				{
@@ -692,7 +690,7 @@ 
 			}
 			unset($link);
 			$preserv['view'] = $preserv['edit_single'] = false;
-			$msg = lang('%1 copied - the copy can now be edited', lang(Link::get_registry('calendar','entry')));
+			$msg = lang('%1 copied - the copy can now be edited', lang(Link::get_registry('calendar', 'entry')));
 			$event['title'] = lang('Copy of:').' '.$event['title'];
 			break;
 
@@ -702,7 +700,7 @@ 
 		case 'print':
 		case 'apply':
 		case 'infolog':
-			if ($event['id'] && !$this->bo->check_perms(Acl::EDIT,$event))
+			if ($event['id'] && !$this->bo->check_perms(Acl::EDIT, $event))
 			{
 				$msg = lang('Permission denied');
 				$button = '';
@@ -720,7 +718,7 @@ 
 				$button = '';
 				break;
 			}
-			if ($event['recur_type'] != MCAL_RECUR_NONE && $event['end']-$event['start'] > calendar_rrule::recurrence_interval($event['recur_type'], $event['recur_interval']))
+			if ($event['recur_type'] != MCAL_RECUR_NONE && $event['end'] - $event['start'] > calendar_rrule::recurrence_interval($event['recur_type'], $event['recur_interval']))
 			{
 				$msg = lang('Error: Duration of event longer then recurrence interval!');
 				$button = '';
@@ -750,14 +748,14 @@ 
 				$event['reference'] = $event['id'];
 				$event['recurrence'] = $content['edit_single'];
 				unset($event['id']);
-				$conflicts = $this->bo->update($event,$ignore_conflicts,true,false,true,$messages,$content['no_notifications']);
+				$conflicts = $this->bo->update($event, $ignore_conflicts, true, false, true, $messages, $content['no_notifications']);
 				if (!is_array($conflicts) && $conflicts)
 				{
 					// now we need to add the original start as recur-execption to the series
 					$recur_event = $this->bo->read($event['reference']);
 					$recur_event['recur_exception'][] = $content['edit_single'];
 					// check if we need to move the alarms, because they are next on that exception
-					foreach($recur_event['alarm'] as $id => $alarm)
+					foreach ($recur_event['alarm'] as $id => $alarm)
 					{
 						if ($alarm['time'] == $content['edit_single'] - $alarm['offset'])
 						{
@@ -773,17 +771,17 @@ 
 							}
 						}
 					}
-					unset($recur_event['start']); unset($recur_event['end']);	// no update necessary
-					unset($recur_event['alarm']);	// unsetting alarms too, as they cant be updated without start!
-					$this->bo->update($recur_event,true);	// no conflict check here
+					unset($recur_event['start']); unset($recur_event['end']); // no update necessary
+					unset($recur_event['alarm']); // unsetting alarms too, as they cant be updated without start!
+					$this->bo->update($recur_event, true); // no conflict check here
 
 					// Save links
-					if($content['links'])
+					if ($content['links'])
 					{
 						Link::link('calendar', $event['id'], $content['links']['to_id']);
 					}
 
-					if(Api\Json\Response::isJSONResponse())
+					if (Api\Json\Response::isJSONResponse())
 					{
 						// Sending null will trigger a removal of the original
 						// for that date
@@ -791,7 +789,7 @@ 
 					}
 
 					unset($recur_event);
-					unset($event['edit_single']);			// if we further edit it, it's just a single event
+					unset($event['edit_single']); // if we further edit it, it's just a single event
 					unset($preserv['edit_single']);
 				}
 				else	// conflict or error, we need to reset everything to the state befor we tried to save it
@@ -822,8 +820,8 @@ 
 							{
 								$offset = $off2;
 							}
-							$msg = $this->_break_recurring($event, $old_event, $event['actual_date'] + $offset,$content['no_notifications']);
-							if($msg)
+							$msg = $this->_break_recurring($event, $old_event, $event['actual_date'] + $offset, $content['no_notifications']);
+							if ($msg)
 							{
 								$noerror = false;
 							}
@@ -836,10 +834,10 @@ 
 							$event['whole_day'] != $old_event['whole_day'])
 						{
 							$sameday = (date('Ymd', $old_event['start']) == date('Ymd', $event['start']));
-							foreach((array)$event['participants'] as $uid => $status)
+							foreach ((array)$event['participants'] as $uid => $status)
 							{
 								$q = $r = null;
-								calendar_so::split_status($status,$q,$r);
+								calendar_so::split_status($status, $q, $r);
 								if ($uid[0] != 'c' && $uid[0] != 'e' && $uid != $this->bo->user && $status != 'U')
 								{
 									$preferences = new Api\Preferences($uid);
@@ -852,7 +850,7 @@ 
 											if ($sameday) break;
 										default:
 											$status_reset_to_unknown = true;
-											$event['participants'][$uid] = calendar_so::combine_status('U',$q,$r);
+											$event['participants'][$uid] = calendar_so::combine_status('U', $q, $r);
 											// todo: report reset status to user
 									}
 								}
@@ -870,43 +868,43 @@ 
 				}
 				// Adding participants needs to be done as an edit, in case we
 				// have participants visible in seperate calendars
-				if(is_array($old_event['participants']) && count(array_diff_key($event['participants'], $old_event['participants'])))
+				if (is_array($old_event['participants']) && count(array_diff_key($event['participants'], $old_event['participants'])))
 				{
 					$update_type = 'edit';
 				}
 				// Changing category may affect event filtering
-				if($this->cal_prefs['saved_states']['cat_id'] && $old_event['category'] != $event['category'])
+				if ($this->cal_prefs['saved_states']['cat_id'] && $old_event['category'] != $event['category'])
 				{
 					$update_type = 'edit';
 				}
-				$conflicts = $this->bo->update($event,$ignore_conflicts,true,false,true,$messages,$content['no_notifications']);
+				$conflicts = $this->bo->update($event, $ignore_conflicts, true, false, true, $messages, $content['no_notifications']);
 				unset($event['ignore']);
 			}
 			if (is_array($conflicts))
 			{
-				$event['button_was'] = $button;	// remember for ignore
-				return $this->conflicts($event,$conflicts,$preserv);
+				$event['button_was'] = $button; // remember for ignore
+				return $this->conflicts($event, $conflicts, $preserv);
 			}
 
 			// Event spans multiple days, need an edit to make sure they all get updated
 			// We could check old date, as removing from days could still be an update
-			if(date('Ymd', $event['start']) != date('Ymd', $event['end']))
+			if (date('Ymd', $event['start']) != date('Ymd', $event['end']))
 			{
 				$update_type = 'edit';
 			}
 			// check if there are messages from update, eg. removed participants or Api\Categories because of missing rights
 			if ($messages)
 			{
-				$msg  .= ($msg ? ', ' : '').implode(', ',$messages);
+				$msg .= ($msg ? ', ' : '').implode(', ', $messages);
 			}
 			if ($conflicts === 0)
 			{
-				$msg .= ($msg ? ', ' : '') .lang('Error: the entry has been updated since you opened it for editing!').'<br />'.
-							lang('Copy your changes to the clipboard, %1reload the entry%2 and merge them.','<a href="'.
-								htmlspecialchars(Egw::link('/index.php',array(
+				$msg .= ($msg ? ', ' : '').lang('Error: the entry has been updated since you opened it for editing!').'<br />'.
+							lang('Copy your changes to the clipboard, %1reload the entry%2 and merge them.', '<a href="'.
+								htmlspecialchars(Egw::link('/index.php', array(
 								'menuaction' => 'calendar.calendar_uiforms.edit',
 								'cal_id'    => $content['id'],
-							))).'">','</a>');
+							))).'">', '</a>');
 				$noerror = false;
 			}
 			elseif ($conflicts > 0)
@@ -928,19 +926,19 @@ 
 						// if alarm would be in the past (eg. event moved back) --> move to next possible recurrence
 						if ($alarm['time'] < $this->bo->now_su)
 						{
-							if (($next_occurrence = $this->bo->read($event['id'], $this->bo->now_su+$alarm['offset'], true)))
+							if (($next_occurrence = $this->bo->read($event['id'], $this->bo->now_su + $alarm['offset'], true)))
 							{
-								$alarm['time'] =  $next_occurrence['start'] - $alarm['offset'];
+								$alarm['time'] = $next_occurrence['start'] - $alarm['offset'];
 							}
 							else
 							{
-								$alarm = false;	// no (further) recurence found --> ignore alarm
+								$alarm = false; // no (further) recurence found --> ignore alarm
 							}
 						}
 						// alarm is currently on a previous recurrence --> set for first recurrence of new series
 						elseif ($event_time < $event['start'])
 						{
-							$alarm['time'] =  $event['start'] - $alarm['offset'];
+							$alarm['time'] = $event['start'] - $alarm['offset'];
 						}
 						if ($alarm)
 						{
@@ -949,9 +947,9 @@ 
 						}
 					}
 					// attach all future exceptions to the new series
-					$events =& $this->bo->search(array(
+					$events = & $this->bo->search(array(
 						'query' => array('cal_uid' => $old_event['uid']),
-						'filter' => 'owner',  // return all possible entries
+						'filter' => 'owner', // return all possible entries
 						'daywise' => false,
 						'date_format' => 'ts',
 					));
@@ -962,7 +960,7 @@ 
 							$exception['recurrence'] += $offset;
 							$exception['reference'] = $event['id'];
 							$exception['uid'] = $event['uid'];
-							$this->bo->update($exception, true, true, true, true, $msg=null, $content['no_notifications']);
+							$this->bo->update($exception, true, true, true, true, $msg = null, $content['no_notifications']);
 						}
 					}
 				}
@@ -970,12 +968,12 @@ 
 				$message = lang('Event saved');
 				if ($status_reset_to_unknown)
 				{
-					foreach((array)$event['participants'] as $uid => $status)
+					foreach ((array)$event['participants'] as $uid => $status)
 					{
 						if ($uid[0] != 'c' && $uid[0] != 'e' && $uid != $this->bo->user)
 						{
-							calendar_so::split_status($status,$q,$r);
-							$status = calendar_so::combine_status('U',$q,$r);
+							calendar_so::split_status($status, $q, $r);
+							$status = calendar_so::combine_status('U', $q, $r);
 							$this->bo->set_status($event['id'], $uid, $status, 0, true);
 						}
 					}
@@ -983,17 +981,17 @@ 
 				}
 
 				$response = Api\Json\Response::get();
-				if($response && $update_type != 'delete')
+				if ($response && $update_type != 'delete')
 				{
 					$client_updated = $this->update_client($event['id']);
 				}
 
-				$msg = $message . ($msg ? ', ' . $msg : '');
+				$msg = $message.($msg ? ', '.$msg : '');
 				Framework::refresh_opener($msg, 'calendar', $event['id'], $client_updated ? ($event['recur_type'] ? 'edit' : $update_type) : 'delete');
 				// writing links for new entry, existing ones are handled by the widget itself
 				if (!$content['id'] && is_array($content['link_to']['to_id']))
 				{
-					Link::link('calendar',$event['id'],$content['link_to']['to_id']);
+					Link::link('calendar', $event['id'], $content['link_to']['to_id']);
 				}
 			}
 			else
@@ -1003,7 +1001,7 @@ 
 			break;
 
 		case 'cancel':
-			if($content['cancel_needs_refresh'])
+			if ($content['cancel_needs_refresh'])
 			{
 				Framework::refresh_opener($msg, 'calendar');
 			}
@@ -1041,7 +1039,7 @@ 
 			{
 				$content['new_alarm']['date'] = $next_occurrence['start'] - $offset;
 			}
-			if ($this->bo->check_perms(Acl::EDIT,!$content['new_alarm']['owner'] ? $event : 0,$content['new_alarm']['owner']))
+			if ($this->bo->check_perms(Acl::EDIT, !$content['new_alarm']['owner'] ? $event : 0, $content['new_alarm']['owner']))
 			{
 				$alarm = array(
 					'offset' => $offset,
@@ -1055,13 +1053,13 @@ 
 				}
 				elseif ($event['id'])	// save the alarm immediatly
 				{
-					if (($alarm_id = $this->bo->save_alarm($event['id'],$alarm)))
+					if (($alarm_id = $this->bo->save_alarm($event['id'], $alarm)))
 					{
 						$alarm['id'] = $alarm_id;
 						$event['alarm'][$alarm_id] = $alarm;
 
 						$msg = lang('Alarm added');
-						Framework::refresh_opener($msg,'calendar', $event['id'], 'update');
+						Framework::refresh_opener($msg, 'calendar', $event['id'], 'update');
 					}
 					else
 					{
@@ -1070,7 +1068,7 @@ 
 				}
 				else
 				{
-					for($alarm['id']=1; isset($event['alarm'][$alarm['id']]); $alarm['id']++) {}	// get a temporary non-conflicting, numeric id
+					for ($alarm['id'] = 1; isset($event['alarm'][$alarm['id']]); $alarm['id']++) {}	// get a temporary non-conflicting, numeric id
 					$event['alarm'][$alarm['id']] = $alarm;
 				}
 			}
@@ -1087,32 +1085,32 @@ 
 		}
 		// New event, send data before updating so it's there
 		$response = Api\Json\Response::get();
-		if($response && !$content['id'] && $event['id'])
+		if ($response && !$content['id'] && $event['id'])
 		{
 			$client_updated = $this->update_client($event['id']);
 		}
-		if (in_array($button,array('cancel','save','delete','delete_exceptions','delete_keep_exceptions')) && $noerror)
+		if (in_array($button, array('cancel', 'save', 'delete', 'delete_exceptions', 'delete_keep_exceptions')) && $noerror)
 		{
 			if ($content['lock_token'])	// remove an existing lock
 			{
-				Vfs::unlock(Vfs::app_entry_lock_path('calendar',$content['id']),$content['lock_token'],false);
+				Vfs::unlock(Vfs::app_entry_lock_path('calendar', $content['id']), $content['lock_token'], false);
 			}
 			if ($content['no_popup'])
 			{
-				Egw::redirect_link('/index.php',array(
+				Egw::redirect_link('/index.php', array(
 					'menuaction' => 'calendar.calendar_uiviews.index',
 					'msg'        => $msg,
 					'ajax'       => 'true'
 				));
 			}
-			if (in_array($button,array('delete_exceptions','delete_keep_exceptions')) || $content['recur_type'] && $button == 'delete')
+			if (in_array($button, array('delete_exceptions', 'delete_keep_exceptions')) || $content['recur_type'] && $button == 'delete')
 			{
-				Framework::refresh_opener($msg,'calendar');
+				Framework::refresh_opener($msg, 'calendar');
 			}
 			else
 			{
 				Framework::refresh_opener($msg, 'calendar',
-					$event['id'] . ($content['edit_single'] ? ':' . (int)$content['edit_single'] : '' ),
+					$event['id'].($content['edit_single'] ? ':'.(int)$content['edit_single'] : ''),
 					$button == 'save' && $client_updated ? ($content['id'] ? $update_type : 'add') : 'delete'
 				);
 			}
@@ -1120,7 +1118,7 @@ 
 			exit();
 		}
 		unset($event['no_notifications']);
-		return $this->edit($event,$preserv,$msg,$event['id'] ? $event['id'] : $content['link_to']['to_id']);
+		return $this->edit($event, $preserv, $msg, $event['id'] ? $event['id'] : $content['link_to']['to_id']);
 	}
 
 	/**
@@ -1132,7 +1130,7 @@ 
 	 * @param array &$preserv
 	 * @return string message that exception was created
 	 */
-	function _create_exception(&$event,&$preserv)
+	function _create_exception(&$event, &$preserv)
 	{
 		// In some cases where the user makes the first day an exception, actual_date may be missing
 		$preserv['actual_date'] = $preserv['actual_date'] ? $preserv['actual_date'] : $event['start'];
@@ -1142,25 +1140,25 @@ 
 		$event['recurrence'] = $preserv['recurrence'] = $preserv['actual_date'];
 		$event['start'] = $preserv['edit_single'] = $preserv['actual_date'];
 		$event['recur_type'] = MCAL_RECUR_NONE;
-		foreach(array('recur_enddate','recur_interval','recur_exception','recur_data') as $name)
+		foreach (array('recur_enddate', 'recur_interval', 'recur_exception', 'recur_data') as $name)
 		{
 			unset($event[$name]);
 		}
 		// add all alarms as new alarms to execption
 		$event['alarm'] = array_values((array)$event['alarm']);
-		foreach($event['alarm'] as &$alarm)
+		foreach ($event['alarm'] as &$alarm)
 		{
 			unset($alarm['uid'], $alarm['id'], $alarm['time']);
 		}
 
 		// Copy links
-		if(!is_array($event['link_to'])) $event['link_to'] = array();
+		if (!is_array($event['link_to'])) $event['link_to'] = array();
 		$event['link_to']['to_app'] = 'calendar';
 		$event['link_to']['to_id'] = 0;
 
-		foreach(Link::get_links($event['link_to']['to_app'], $event['id']) as $link)
+		foreach (Link::get_links($event['link_to']['to_app'], $event['id']) as $link)
 		{
-			if(!$link['id']) continue;
+			if (!$link['id']) continue;
 			if ($link['app'] != Link::VFS_APPNAME)
 			{
 				Link::link('calendar', $event['link_to']['to_id'], $link['app'], $link['id'], $link['remark']);
@@ -1176,7 +1174,7 @@ 
 
 		$event['links'] = $event['link_to'];
 
-		if($this->bo->check_perms(Acl::EDIT,$event))
+		if ($this->bo->check_perms(Acl::EDIT, $event))
 		{
 			return lang('Save event as exception - Delete single occurrence - Edit status or alarms for this particular day');
 		}
@@ -1203,14 +1201,14 @@ 
 	{
 		$msg = false;
 
-		if(!$as_of_date )
+		if (!$as_of_date)
 		{
 			$as_of_date = time();
 		}
 
 		//error_log(__METHOD__ . Api\DateTime::to($old_event['start']) . ' -> '. Api\DateTime::to($event['start']) . ' as of ' . Api\DateTime::to($as_of_date));
 
-		if(!($next_occurrence = $this->bo->read($event['id'], $this->bo->now_su + 1, true)))
+		if (!($next_occurrence = $this->bo->read($event['id'], $this->bo->now_su + 1, true)))
 		{
 			$msg = lang("Error: You can't shift a series from the past!");
 			return $msg;
@@ -1223,11 +1221,11 @@ 
 		$duration = $event['duration'] ? $event['duration'] : $event['end'] - $event['start'];
 
 		// base start-date of new series on actual / clicked date
-		$event['start'] = $as_of_date ;
+		$event['start'] = $as_of_date;
 
-		if (Api\DateTime::to($old_event['start'],'Ymd') < Api\DateTime::to($as_of_date,'Ymd') ||
+		if (Api\DateTime::to($old_event['start'], 'Ymd') < Api\DateTime::to($as_of_date, 'Ymd') ||
 			// Adjust for requested date in the past
-			Api\DateTime::to($as_of_date,'ts') < time()
+			Api\DateTime::to($as_of_date, 'ts') < time()
 		)
 		{
 
@@ -1247,17 +1245,17 @@ 
 				$rriter->next_no_exception();
 				$occurrence = $rriter->current();
 			}
-			while ($rriter->valid()  && (
+			while ($rriter->valid() && (
 				Api\DateTime::to($occurrence, 'ts') <= time() ||
-				Api\DateTime::to($occurrence, 'Ymd') < Api\DateTime::to($as_of_date,'Ymd')
+				Api\DateTime::to($occurrence, 'Ymd') < Api\DateTime::to($as_of_date, 'Ymd')
 			) && ($last = $occurrence));
 
 
 			// Make sure as_of_date is still valid, may have to move forward
-			if(Api\DateTime::to($as_of_date,'ts') < Api\DateTime::to($last,'ts') ||
+			if (Api\DateTime::to($as_of_date, 'ts') < Api\DateTime::to($last, 'ts') ||
 				Api\DateTime::to($as_of_date, 'Ymd') == Api\DateTime::to($last, 'Ymd'))
 			{
-				$event['start'] = Api\DateTime::to($rriter->current(),'ts') + $offset;
+				$event['start'] = Api\DateTime::to($rriter->current(), 'ts') + $offset;
 			}
 
 			//error_log(__METHOD__ ." Series should end at " . Api\DateTime::to($last) . " New series starts at " . Api\DateTime::to($event['start']));
@@ -1265,7 +1263,7 @@ 
 			{
 				$event['end'] = $event['start'] + $duration;
 			}
-			elseif($event['end'] < $event['start'])
+			elseif ($event['end'] < $event['start'])
 			{
 				$event['end'] = $old_event['end'] - $old_event['start'] + $event['start'];
 			}
@@ -1274,7 +1272,7 @@ 
 			$event['participants'] = $old_event['participants'];
 			foreach ($old_event['recur_exception'] as $key => $exdate)
 			{
-				if ($exdate > Api\DateTime::to($last,'ts'))
+				if ($exdate > Api\DateTime::to($last, 'ts'))
 				{
 					//error_log("Moved exception on " . Api\DateTime::to($exdate));
 					unset($old_event['recur_exception'][$key]);
@@ -1288,18 +1286,18 @@ 
 			}
 			$last->setTime(0, 0, 0);
 			$old_event['recur_enddate'] = Api\DateTime::to($last, 'ts');
-			if (!$this->bo->update($old_event,true,true,false,true,$dummy=null,$no_notifications))
+			if (!$this->bo->update($old_event, true, true, false, true, $dummy = null, $no_notifications))
 			{
-				$msg .= ($msg ? ', ' : '') .lang('Error: the entry has been updated since you opened it for editing!').'<br />'.
-					lang('Copy your changes to the clipboard, %1reload the entry%2 and merge them.','<a href="'.
-						htmlspecialchars(Egw::link('/index.php',array(
+				$msg .= ($msg ? ', ' : '').lang('Error: the entry has been updated since you opened it for editing!').'<br />'.
+					lang('Copy your changes to the clipboard, %1reload the entry%2 and merge them.', '<a href="'.
+						htmlspecialchars(Egw::link('/index.php', array(
 							'menuaction' => 'calendar.calendar_uiforms.edit',
 							'cal_id'    => $event['id'],
-						))).'">','</a>');
+						))).'">', '</a>');
 				$event = $orig_event;
 			}
 		}
-		$event['start'] = Api\DateTime::to($event['start'],'ts');
+		$event['start'] = Api\DateTime::to($event['start'], 'ts');
 		return $msg;
 	}
 
@@ -1310,18 +1308,18 @@ 
 	 * @param boolean $added
 	 * @return string javascript window.open command
 	 */
-	function ajax_custom_mail($event,$added,$asrequest=false)
+	function ajax_custom_mail($event, $added, $asrequest = false)
 	{
 		$to = array();
 
-		foreach($event['participants'] as $uid => $status)
+		foreach ($event['participants'] as $uid => $status)
 		{
 			//error_log(__METHOD__.__LINE__.' '.$uid.':'.array2string($status));
 			if (empty($status)) continue;
-			if(!is_array($status))
+			if (!is_array($status))
 			{
 				$quantity = $role = null;
-				calendar_so::split_status($status,$quantity,$role);
+				calendar_so::split_status($status, $quantity, $role);
 				$status = array(
 					'status' => $status,
 					'uid' => $uid,
@@ -1332,32 +1330,32 @@ 
 
 			if (isset($status['uid']) && is_numeric($status['uid']) && $GLOBALS['egw']->accounts->get_type($status['uid']) == 'u')
 			{
-				if (!($email = $GLOBALS['egw']->accounts->id2name($status['uid'],'account_email'))) continue;
+				if (!($email = $GLOBALS['egw']->accounts->id2name($status['uid'], 'account_email'))) continue;
 
 				$toadd = $GLOBALS['egw']->accounts->id2name($status['uid'], 'account_firstname').' '.
 					$GLOBALS['egw']->accounts->id2name($status['uid'], 'account_lastname').' <'.$email.'>';
 
-				if (!in_array($toadd,$to)) $to[] = $toadd;
+				if (!in_array($toadd, $to)) $to[] = $toadd;
 			}
 			elseif ($uid < 0)
 			{
-				foreach($GLOBALS['egw']->accounts->members($uid,true) as $uid)
+				foreach ($GLOBALS['egw']->accounts->members($uid, true) as $uid)
 				{
-					if (!($email = $GLOBALS['egw']->accounts->id2name($uid,'account_email'))) continue;
+					if (!($email = $GLOBALS['egw']->accounts->id2name($uid, 'account_email'))) continue;
 
 					$toadd = $GLOBALS['egw']->accounts->id2name($uid, 'account_firstname').' '.
 						$GLOBALS['egw']->accounts->id2name($uid, 'account_lastname').' <'.$email.'>';
 
 					// dont add groupmembers if they already rejected the event, or are the current user
-					if (!in_array($toadd,$to) && ($event['participants'][$uid] !== 'R' && $uid != $this->user)) $to[] = $toadd;
+					if (!in_array($toadd, $to) && ($event['participants'][$uid] !== 'R' && $uid != $this->user)) $to[] = $toadd;
 				}
 			}
-			elseif(!empty($status['uid'])&& !is_numeric(substr($status['uid'],0,1)) && ($info = $this->bo->resource_info($status['uid'])))
+			elseif (!empty($status['uid']) && !is_numeric(substr($status['uid'], 0, 1)) && ($info = $this->bo->resource_info($status['uid'])))
 			{
 				$to[] = $info['email'];
 				//error_log(__METHOD__.__LINE__.array2string($to));
 			}
-			elseif(!is_numeric(substr($uid,0,1)) && ($info = $this->bo->resource_info($uid)))
+			elseif (!is_numeric(substr($uid, 0, 1)) && ($info = $this->bo->resource_info($uid)))
 			{
 				$to[] = $info['email'];
 				//error_log(__METHOD__.__LINE__.array2string($to));
@@ -1366,7 +1364,7 @@ 
 		// prefer event description over standard notification text
 		if (empty($event['description']))
 		{
-			list(,$body) = $this->bo->get_update_message($event,$added ? MSG_ADDED : MSG_MODIFIED);	// update-message is in TZ of the user
+			list(,$body) = $this->bo->get_update_message($event, $added ? MSG_ADDED : MSG_MODIFIED); // update-message is in TZ of the user
 		}
 		else
 		{
@@ -1381,12 +1379,12 @@ 
 		$boical = new calendar_ical();
 		// we need to pass $event[id] so iCal class reads event again,
 		// as event is in user TZ, but iCal class expects server TZ!
-		$ics = $boical->exportVCal(array($event['id']),'2.0','REQUEST',false);
+		$ics = $boical->exportVCal(array($event['id']), '2.0', 'REQUEST', false);
 
-		$ics_file = tempnam($GLOBALS['egw_info']['server']['temp_dir'],'ics');
-		if(($f = fopen($ics_file,'w')))
+		$ics_file = tempnam($GLOBALS['egw_info']['server']['temp_dir'], 'ics');
+		if (($f = fopen($ics_file, 'w')))
 		{
-			fwrite($f,$ics);
+			fwrite($f, $ics);
 			fclose($f);
 		}
 		//error_log(__METHOD__.__LINE__.array2string($to));
@@ -1397,10 +1395,10 @@ 
 			'preset[body]'    => $body,
 			'preset[name]'    => 'event.ics',
 			'preset[file]'    => $ics_file,
-			'preset[type]'    => 'text/calendar'.($asrequest?'; method=REQUEST':''),
+			'preset[type]'    => 'text/calendar'.($asrequest ? '; method=REQUEST' : ''),
 			'preset[size]'    => filesize($ics_file),
 		);
-		$vars[$asrequest?'preset[to]': 'preset[bcc]'] = $to;
+		$vars[$asrequest ? 'preset[to]' : 'preset[bcc]'] = $to;
 		if ($asrequest) $vars['preset[msg]'] = lang('You attempt to mail a meetingrequest to the recipients above. Depending on the client this mail is opened with, the recipient may or may not see the mailbody below, but only see the meeting request attached.');
 		$response = Api\Json\Response::get();
 		$response->call('app.calendar.custom_mail', $vars);
@@ -1454,7 +1452,7 @@ 
 	 * @param mixed $link_to_id ='' from or for the link-widget
 	 * @param string $msg_type =null default automatic detect, if it contains "error"
 	 */
-	function edit($event=null,$preserv=null,$msg='',$link_to_id='',$msg_type=null)
+	function edit($event = null, $preserv = null, $msg = '', $link_to_id = '', $msg_type = null)
 	{
 		$sel_options = array(
 			'recur_type' => &$this->bo->recur_types,
@@ -1478,8 +1476,8 @@ 
 				'no_popup' => isset($_GET['no_popup']),
 				'template' => isset($_GET['template']) ? $_GET['template'] : (isset($_REQUEST['print']) ? 'calendar.print' : 'calendar.edit'),
 			);
-			$cal_id = (int) $_GET['cal_id'];
-			if($_GET['action'])
+			$cal_id = (int)$_GET['cal_id'];
+			if ($_GET['action'])
 			{
 				$event = $this->bo->read($cal_id);
 				$event['action'] = $_GET['action'];
@@ -1497,14 +1495,14 @@ 
 			{
 				//error_log(__METHOD__."() Error: importing the iCal: vfs file not found '$_GET[ical_vfs]'!");
 				$msg = lang('Error: importing the iCal').': '.lang('VFS file not found').': '.$_GET['ical_vfs'];
-				$event =& $this->default_add_event();
+				$event = & $this->default_add_event();
 			}
 			if (!empty($_GET['ical_data']) &&
 				!($_GET['ical'] = Link::get_data($_GET['ical_data'])))
 			{
 				//error_log(__METHOD__."() Error: importing the iCal: data not found '$_GET[ical_data]'!");
 				$msg = lang('Error: importing the iCal').': '.lang('Data not found').': '.$_GET['ical_data'];
-				$event =& $this->default_add_event();
+				$event = & $this->default_add_event();
 			}
 			if (!empty($_GET['ical']))
 			{
@@ -1513,14 +1511,14 @@ 
 				{
 					error_log(__METHOD__."('$_GET[ical]') error parsing iCal!");
 					$msg = lang('Error: importing the iCal');
-					$event =& $this->default_add_event();
+					$event = & $this->default_add_event();
 				}
 				else
 				{
 					if (count($events) > 1)
 					{
 						$msg = lang('%1 events in iCal file, only first one imported and displayed!', count($events));
-						$msg_type = 'notice';	// no not hide automatic
+						$msg_type = 'notice'; // no not hide automatic
 					}
 					// as icaltoegw returns timestamps in server-time, we have to convert them here to user-time
 					$this->bo->db2data($events, 'ts');
@@ -1533,7 +1531,7 @@ 
 					else
 					{
 						$event['participant_types'] = array();
-						foreach($event['participants'] as $uid => $status)
+						foreach ($event['participants'] as $uid => $status)
 						{
 							$user_type = $user_id = null;
 							calendar_so::split_user($uid, $user_type, $user_id);
@@ -1554,15 +1552,15 @@ 
 					}
 					else
 					{
-						$GLOBALS['egw']->framework->render('<p class="message" align="center">'.lang('Permission denied')."</p>\n",null,true);
+						$GLOBALS['egw']->framework->render('<p class="message" align="center">'.lang('Permission denied')."</p>\n", null, true);
 						exit();
 					}
 				}
-				$event =& $this->default_add_event();
+				$event = & $this->default_add_event();
 			}
 			else
 			{
-				$preserv['actual_date'] = $event['start'];		// remember the date clicked
+				$preserv['actual_date'] = $event['start']; // remember the date clicked
 				if ($event['recur_type'] != MCAL_RECUR_NONE)
 				{
 					if (empty($event['whole_day']))
@@ -1575,10 +1573,10 @@ 
 						$date->setUser();
 					}
 					$event = $this->bo->read($cal_id, $date, true);
-					$preserv['actual_date'] = $event['start'];		// remember the date clicked
+					$preserv['actual_date'] = $event['start']; // remember the date clicked
 					if ($_GET['exception'])
 					{
-						$msg = $this->_create_exception($event,$preserv);
+						$msg = $this->_create_exception($event, $preserv);
 					}
 					else
 					{
@@ -1587,9 +1585,9 @@ 
 				}
 			}
 			// set new start and end if given by $_GET
-			if(isset($_GET['start'])) { $event['start'] = Api\DateTime::to($_GET['start'],'ts'); }
-			if(isset($_GET['end'])) { $event['end'] = Api\DateTime::to($_GET['end'],'ts'); }
-			if(isset($_GET['non_blocking'])) { $event['non_blocking'] = (bool)$_GET['non_blocking']; }
+			if (isset($_GET['start'])) { $event['start'] = Api\DateTime::to($_GET['start'], 'ts'); }
+			if (isset($_GET['end'])) { $event['end'] = Api\DateTime::to($_GET['end'], 'ts'); }
+			if (isset($_GET['non_blocking'])) { $event['non_blocking'] = (bool)$_GET['non_blocking']; }
 			// check if the event is the whole day
 			$start = $this->bo->date2array($event['start']);
 			$end = $this->bo->date2array($event['end']);
@@ -1599,30 +1597,30 @@ 
 			if (!$event['id'] && isset($_REQUEST['link_app']) && isset($_REQUEST['link_id']))
 			{
 				$link_ids = is_array($_REQUEST['link_id']) ? $_REQUEST['link_id'] : array($_REQUEST['link_id']);
-				foreach(is_array($_REQUEST['link_app']) ? $_REQUEST['link_app'] : array($_REQUEST['link_app']) as $n => $link_app)
+				foreach (is_array($_REQUEST['link_app']) ? $_REQUEST['link_app'] : array($_REQUEST['link_app']) as $n => $link_app)
 				{
 					$link_id = $link_ids[$n];
-					if(!preg_match('/^[a-z_0-9-]+:[:a-z_0-9-]+$/i',$link_app.':'.$link_id))	// guard against XSS
+					if (!preg_match('/^[a-z_0-9-]+:[:a-z_0-9-]+$/i', $link_app.':'.$link_id))	// guard against XSS
 					{
 						continue;
 					}
-					if(!$n)
+					if (!$n)
 					{
-						$event['title'] = Link::title($link_app,$link_id);
+						$event['title'] = Link::title($link_app, $link_id);
 						// ask first linked app via "calendar_set" hook, for further data to set, incl. links
-						if (($set = Api\Hooks::single($event+array('location'=>'calendar_set','entry_id'=>$link_id),$link_app)))
+						if (($set = Api\Hooks::single($event + array('location'=>'calendar_set', 'entry_id'=>$link_id), $link_app)))
 						{
-							foreach((array)$set['link_app'] as $i => $l_app)
+							foreach ((array)$set['link_app'] as $i => $l_app)
 							{
-								if (($l_id=$set['link_id'][$i])) Link::link('calendar',$event['link_to']['to_id'],$l_app,$l_id);
+								if (($l_id = $set['link_id'][$i])) Link::link('calendar', $event['link_to']['to_id'], $l_app, $l_id);
 							}
 							unset($set['link_app']);
 							unset($set['link_id']);
 
-							$event = array_merge($event,$set);
+							$event = array_merge($event, $set);
 						}
 					}
-					Link::link('calendar',$link_to_id,$link_app,$link_id);
+					Link::link('calendar', $link_to_id, $link_app, $link_id);
 				}
 			}
 		}
@@ -1632,45 +1630,45 @@ 
 		{
 			$etpl->read($preserv['template'] = 'calendar.edit');
 		}
-		$view = $preserv['view'] = $preserv['view'] || $event['id'] && !$this->bo->check_perms(Acl::EDIT,$event);
+		$view = $preserv['view'] = $preserv['view'] || $event['id'] && !$this->bo->check_perms(Acl::EDIT, $event);
 		//echo "view=$view, event="; _debug_array($event);
 		// shared locking of entries to edit
 		if (!$view && ($locktime = $GLOBALS['egw_info']['server']['Lock_Time_Calender']) && $event['id'])
 		{
-			$lock_path = Vfs::app_entry_lock_path('calendar',$event['id']);
+			$lock_path = Vfs::app_entry_lock_path('calendar', $event['id']);
 			$lock_owner = 'mailto:'.$GLOBALS['egw_info']['user']['account_email'];
 
 			if (($preserv['lock_token'] = $event['lock_token']))		// already locked --> refresh the lock
 			{
-				Vfs::lock($lock_path,$preserv['lock_token'],$locktime,$lock_owner,$scope='shared',$type='write',true,false);
+				Vfs::lock($lock_path, $preserv['lock_token'], $locktime, $lock_owner, $scope = 'shared', $type = 'write', true, false);
 			}
 			if (($lock = Vfs::checkLock($lock_path)) && $lock['owner'] != $lock_owner)
 			{
 				$msg .= ' '.lang('This entry is currently opened by %1!',
-					(($lock_uid = $GLOBALS['egw']->accounts->name2id(substr($lock['owner'],7),'account_email')) ?
+					(($lock_uid = $GLOBALS['egw']->accounts->name2id(substr($lock['owner'], 7), 'account_email')) ?
 					Api\Accounts::username($lock_uid) : $lock['owner']));
 			}
-			elseif($lock)
+			elseif ($lock)
 			{
 				$preserv['lock_token'] = $lock['token'];
 			}
-			elseif(Vfs::lock($lock_path,$preserv['lock_token'],$locktime,$lock_owner,$scope='shared',$type='write',false,false))
+			elseif (Vfs::lock($lock_path, $preserv['lock_token'], $locktime, $lock_owner, $scope = 'shared', $type = 'write', false, false))
 			{
 				//We handle AJAX_REQUEST in client-side for unlocking the locked entry, in case of closing the entry by X button or close button
 			}
 			else
 			{
-				$msg .= ' '.lang("Can't aquire lock!");		// eg. an exclusive lock via CalDAV ...
+				$msg .= ' '.lang("Can't aquire lock!"); // eg. an exclusive lock via CalDAV ...
 				$view = true;
 			}
 		}
-		$content = array_merge($event,array(
+		$content = array_merge($event, array(
 			'cal_id'  => $event['id'],
 			'link_to' => array(
 				'to_id'  => $link_to_id,
 				'to_app' => 'calendar',
 			),
-			'edit_single' => $preserv['edit_single'],	// need to be in content too, as it is used in the template
+			'edit_single' => $preserv['edit_single'], // need to be in content too, as it is used in the template
 			'tabs'   => $preserv['tabs'],
 			'view' => $view,
 			'query_delete_exceptions' => (int)($event['recur_type'] && $event['recur_exception']),
@@ -1682,11 +1680,11 @@ 
 		$row = 3;
 		$readonlys = $content['participants'] = $preserv['participants'] = array();
 		// preserve some ui elements, if set eg. under error-conditions
-		foreach(array('quantity','resource','role') as $n)
+		foreach (array('quantity', 'resource', 'role') as $n)
 		{
 			if (isset($event['participants'][$n])) $content['participants'][$n] = $event['participants'][$n];
 		}
-		foreach($event['participant_types'] as $type => $participants)
+		foreach ($event['participant_types'] as $type => $participants)
 		{
 			$name = 'accounts';
 			if (isset($this->bo->resources[$type]))
@@ -1695,17 +1693,17 @@ 
 			}
 			// sort participants (in there group/app) by title
 			uksort($participants, array($this, 'uid_title_cmp'));
-			foreach($participants as $id => $status)
+			foreach ($participants as $id => $status)
 			{
 				$uid = $type == 'u' ? $id : $type.$id;
 				$quantity = $role = null;
-				calendar_so::split_status($status,$quantity,$role);
+				calendar_so::split_status($status, $quantity, $role);
 				$preserv['participants'][$row] = $content['participants'][$row] = array(
 					'app'      => $name == 'accounts' ? ($GLOBALS['egw']->accounts->get_type($id) == 'g' ? 'Group' : 'User') : $name,
 					'uid'      => $uid,
 					'status'   => $status,
 					'old_status' => $status,
-					'quantity' => $quantity > 1 || $uid[0] == 'r' ? $quantity : '',	// only display quantity for resources or if > 1
+					'quantity' => $quantity > 1 || $uid[0] == 'r' ? $quantity : '', // only display quantity for resources or if > 1
 					'role'     => $role,
 				);
 				// replace iCal roles with a nicer label and remove regular REQ-PARTICIPANT
@@ -1714,33 +1712,33 @@ 
 					$content['participants'][$row]['role_label'] = lang($this->bo->roles[$role]);
 				}
 				// allow third party apps to use categories for roles
-				elseif(substr($role,0,6) == 'X-CAT-')
+				elseif (substr($role, 0, 6) == 'X-CAT-')
 				{
-					$content['participants'][$row]['role_label'] = $GLOBALS['egw']->categories->id2name(substr($role,6));
+					$content['participants'][$row]['role_label'] = $GLOBALS['egw']->categories->id2name(substr($role, 6));
 				}
 				else
 				{
-					$content['participants'][$row]['role_label'] = lang(str_replace('X-','',$role));
+					$content['participants'][$row]['role_label'] = lang(str_replace('X-', '', $role));
 				}
-				$content['participants'][$row]['delete_id'] = strpbrk($uid,'"\'<>') !== false ? md5($uid) : $uid;
+				$content['participants'][$row]['delete_id'] = strpbrk($uid, '"\'<>') !== false ? md5($uid) : $uid;
 				//echo "<p>$uid ($quantity): $role --> {$content['participants'][$row]['role']}</p>\n";
 
-				if (($no_status = !$this->bo->check_status_perms($uid,$event)) || $view)
+				if (($no_status = !$this->bo->check_status_perms($uid, $event)) || $view)
 					$readonlys['participants'][$row]['status'] = $no_status;
-				if ($preserv['hide_delete'] || !$this->bo->check_perms(Acl::EDIT,$event))
+				if ($preserv['hide_delete'] || !$this->bo->check_perms(Acl::EDIT, $event))
 					$readonlys['participants']['delete'][$uid] = true;
 				// todo: make the participants available as links with email as title
 				$content['participants'][$row++]['title'] = $this->get_title($uid);
 				// enumerate group-invitations, so people can accept/reject them
 				if ($name == 'accounts' && $GLOBALS['egw']->accounts->get_type($id) == 'g' &&
-					($members = $GLOBALS['egw']->accounts->members($id,true)))
+					($members = $GLOBALS['egw']->accounts->members($id, true)))
 				{
 					$sel_options['status']['G'] = lang('Select one');
 					// sort members by title
 					usort($members, array($this, 'uid_title_cmp'));
-					foreach($members as $member)
+					foreach ($members as $member)
 					{
-						if (!isset($participants[$member]) && $this->bo->check_perms(Acl::READ,0,$member))
+						if (!isset($participants[$member]) && $this->bo->check_perms(Acl::READ, 0, $member))
 						{
 							$preserv['participants'][$row] = $content['participants'][$row] = array(
 								'app'      => 'Group invitation',
@@ -1749,7 +1747,7 @@ 
 							);
 							$readonlys['participants'][$row]['quantity'] = $readonlys['participants']['delete'][$member] = true;
 							// read access is enough to invite participants, but you need edit rights to change status
-							$readonlys['participants'][$row]['status'] = !$this->bo->check_perms(Acl::EDIT,0,$member);
+							$readonlys['participants'][$row]['status'] = !$this->bo->check_perms(Acl::EDIT, 0, $member);
 							$content['participants'][$row++]['title'] = Api\Accounts::username($member);
 						}
 					}
@@ -1757,37 +1755,37 @@ 
 			}
 			// resouces / apps we shedule, atm. resources and addressbook
 			$content['participants']['cal_resources'] = '';
-			foreach($this->bo->resources as $data)
+			foreach ($this->bo->resources as $data)
 			{
-				if ($data['app'] == 'email') continue;	// make no sense, as we cant search for email
+				if ($data['app'] == 'email') continue; // make no sense, as we cant search for email
 				$content['participants']['cal_resources'] .= ','.$data['app'];
 			}
 		}
 		$content['participants']['status_date'] = $preserv['actual_date'];
-		$preserved = array_merge($preserv,$content);
+		$preserved = array_merge($preserv, $content);
 		$event['new_alarm']['options'] = $content['new_alarm']['options'];
 		if ($event['alarm'])
 		{
 			// makes keys of the alarm-array starting with 1
 			$content['alarm'] = array(false);
-			foreach(array_values($event['alarm']) as $id => $alarm)
+			foreach (array_values($event['alarm']) as $id => $alarm)
 			{
-				if (!$alarm['all'] && !$this->bo->check_perms(Acl::READ,0,$alarm['owner']))
+				if (!$alarm['all'] && !$this->bo->check_perms(Acl::READ, 0, $alarm['owner']))
 				{
-					continue;	// no read rights to the calendar of the alarm-owner, dont show the alarm
+					continue; // no read rights to the calendar of the alarm-owner, dont show the alarm
 				}
-				$alarm['all'] = (int) $alarm['all'];
+				$alarm['all'] = (int)$alarm['all'];
 				// fix alarm time in case of alread run alarms, where the time will be their keep_time / when they will be cleaned up otherwise
 				$alarm['time'] = $event['start'] - $alarm['offset'];
 				$after = false;
-				if($alarm['offset'] < 0)
+				if ($alarm['offset'] < 0)
 				{
 					$after = true;
 					$alarm['offset'] = -1 * $alarm['offset'];
 				}
-				$days = (int) ($alarm['offset'] / DAY_s);
-				$hours = (int) (($alarm['offset'] % DAY_s) / HOUR_s);
-				$minutes = (int) (($alarm['offset'] % HOUR_s) / 60);
+				$days = (int)($alarm['offset'] / DAY_s);
+				$hours = (int)(($alarm['offset'] % DAY_s) / HOUR_s);
+				$minutes = (int)(($alarm['offset'] % HOUR_s) / 60);
 				$label = array();
 				if ($days) $label[] = $days.' '.lang('days');
 				if ($hours) $label[] = $hours.' '.lang('hours');
@@ -1798,11 +1796,11 @@ 
 				}
 				else
 				{
-					$alarm['offset'] = implode(', ',$label) . ' ' . ($after ? lang('after') : lang('before'));
+					$alarm['offset'] = implode(', ', $label).' '.($after ? lang('after') : lang('before'));
 				}
 				$content['alarm'][] = $alarm;
 
-				$readonlys['alarm[delete_alarm]['.$alarm['id'].']'] = !$this->bo->check_perms(Acl::EDIT,$alarm['all'] ? $event : 0,$alarm['owner']);
+				$readonlys['alarm[delete_alarm]['.$alarm['id'].']'] = !$this->bo->check_perms(Acl::EDIT, $alarm['all'] ? $event : 0, $alarm['owner']);
 			}
 			if (count($content['alarm']) == 1)
 			{
@@ -1817,20 +1815,20 @@ 
 
 		if ($view)
 		{
-			$readonlys['__ALL__'] = true;	// making everything readonly, but widgets set explicitly to false
+			$readonlys['__ALL__'] = true; // making everything readonly, but widgets set explicitly to false
 			$readonlys['button[cancel]'] = $readonlys['action'] =
 				$readonlys['before_after'] = $readonlys['button[add_alarm]'] = $readonlys['new_alarm[owner]'] =
 				$readonlys['new_alarm[options]'] = $readonlys['new_alarm[date]'] = false;
 
 			$content['participants']['no_add'] = true;
 
-			if(!$event['whole_day'])
+			if (!$event['whole_day'])
 			{
 				$etpl->setElementAttribute('whole_day', 'disabled', true);
 			}
 
 			// respect category permissions
-			if(!empty($event['category']))
+			if (!empty($event['category']))
 			{
 				$content['category'] = $this->categories->check_list(Acl::READ, $event['category']);
 			}
@@ -1841,7 +1839,7 @@ 
 
 			if ($event['recur_type'] != MCAL_RECUR_NONE)
 			{
-				$readonlys['recur_exception'] = !count($content['recur_exception']);	// otherwise we get a delete button
+				$readonlys['recur_exception'] = !count($content['recur_exception']); // otherwise we get a delete button
 				//$onclick =& $etpl->get_cell_attribute('button[delete]','onclick');
 				//$onclick = str_replace('Delete this event','Delete this series of recuring events',$onclick);
 			}
@@ -1851,9 +1849,9 @@ 
 				$readonlys['recur_interval'] = $readonlys['recur_data'] = true;
 			}
 		}
-		if($content['category'] && !is_array($content['category']))
+		if ($content['category'] && !is_array($content['category']))
 		{
-			$content['category'] = explode(',',$event['category']);
+			$content['category'] = explode(',', $event['category']);
 		}
 		// disabling the custom fields tab, if there are none
 		$readonlys['tabs'] = array(
@@ -1870,13 +1868,13 @@ 
 		{
 			$readonlys['action'] = true;
 		}
-		if (!($readonlys['button[exception]'] = !$this->bo->check_perms(Acl::EDIT,$event) || $event['recur_type'] == MCAL_RECUR_NONE || ($event['recur_enddate'] &&$event['start'] > $event['recur_enddate'])))
+		if (!($readonlys['button[exception]'] = !$this->bo->check_perms(Acl::EDIT, $event) || $event['recur_type'] == MCAL_RECUR_NONE || ($event['recur_enddate'] && $event['start'] > $event['recur_enddate'])))
 		{
 			$content['exception_label'] = $this->bo->long_date(max($preserved['actual_date'], $event['start']));
 		}
-		$readonlys['button[delete]'] = !$event['id'] || $preserved['hide_delete'] || !$this->bo->check_perms(Acl::DELETE,$event);
+		$readonlys['button[delete]'] = !$event['id'] || $preserved['hide_delete'] || !$this->bo->check_perms(Acl::DELETE, $event);
 
-		if (!$event['id'] || $this->bo->check_perms(Acl::EDIT,$event))	// new event or edit rights to the event ==> allow to add alarm for all users
+		if (!$event['id'] || $this->bo->check_perms(Acl::EDIT, $event))	// new event or edit rights to the event ==> allow to add alarm for all users
 		{
 			$sel_options['owner'][0] = lang('All participants');
 		}
@@ -1884,26 +1882,26 @@ 
 		{
 			$sel_options['owner'][$this->user] = $this->bo->participant_name($this->user);
 		}
-		foreach((array) $event['participant_types']['u'] as $uid => $status)
+		foreach ((array)$event['participant_types']['u'] as $uid => $status)
 		{
-			if ($uid != $this->user && $status != 'R' && $this->bo->check_perms(Acl::EDIT,0,$uid))
+			if ($uid != $this->user && $status != 'R' && $this->bo->check_perms(Acl::EDIT, 0, $uid))
 			{
 				$sel_options['owner'][$uid] = $this->bo->participant_name($uid);
 			}
 		}
-		$content['no_add_alarm'] = !count($sel_options['owner']);	// no rights to set any alarm
+		$content['no_add_alarm'] = !count($sel_options['owner']); // no rights to set any alarm
 		if (!$event['id'])
 		{
-			$etpl->set_cell_attribute('button[new_alarm]','type','checkbox');
+			$etpl->set_cell_attribute('button[new_alarm]', 'type', 'checkbox');
 		}
 		if ($preserved['no_popup'])
 		{
 			// If not a popup, load the normal calendar interface on cancel
-			$etpl->set_cell_attribute('button[cancel]','onclick','app.calendar.linkHandler(\'index.php?menuaction=calendar.calendar_uiviews.index&ajax=true\')');
+			$etpl->set_cell_attribute('button[cancel]', 'onclick', 'app.calendar.linkHandler(\'index.php?menuaction=calendar.calendar_uiviews.index&ajax=true\')');
 		}
 
 		// Allow admins to restore deleted events
-		if($GLOBALS['egw_info']['server']['calendar_delete_history'] && $event['deleted'] )
+		if ($GLOBALS['egw_info']['server']['calendar_delete_history'] && $event['deleted'])
 		{
 			$content['deleted'] = $preserved['deleted'] = null;
 			$etpl->set_cell_attribute('button[save]', 'label', 'Recover');
@@ -1915,7 +1913,7 @@ 
 		// Setup history tab
 		$this->setup_history($content, $sel_options);
 
-		$GLOBALS['egw_info']['flags']['app_header'] = lang('calendar') . ' - '
+		$GLOBALS['egw_info']['flags']['app_header'] = lang('calendar').' - '
 			. (!$event['id'] ? lang('Add')
 				: ($view ? ($content['edit_single'] ? lang('View exception') : ($content['recur_type'] ? lang('View series') : lang('View')))
 					: ($content['edit_single'] ? lang('Create exception') : ($content['recur_type'] ? lang('Edit series') : lang('Edit')))));
@@ -1925,15 +1923,15 @@ 
 		if (!empty($preserved['lock_token'])) $content['lock_token'] = $preserved['lock_token'];
 
 		// non_interactive==true from $_GET calls immediate save action without displaying the edit form
-		if(isset($_GET['non_interactive']) && (bool)$_GET['non_interactive'] === true)
+		if (isset($_GET['non_interactive']) && (bool)$_GET['non_interactive'] === true)
 		{
-			unset($_GET['non_interactive']);	// prevent process_exec <--> edit loops
+			unset($_GET['non_interactive']); // prevent process_exec <--> edit loops
 			$content['button']['save'] = true;
-			$this->process_edit(array_merge($content,$preserved));
+			$this->process_edit(array_merge($content, $preserved));
 		}
 		else
 		{
-			$etpl->exec('calendar.calendar_uiforms.process_edit',$content,$sel_options,$readonlys,$preserved,$preserved['no_popup'] ? 0 : 2);
+			$etpl->exec('calendar.calendar_uiforms.process_edit', $content, $sel_options, $readonlys, $preserved, $preserved['no_popup'] ? 0 : 2);
 		}
 	}
 
@@ -1943,14 +1941,14 @@ 
 	 * @param int $id
 	 * @param string $token
 	 */
-	function ajax_unlock($id,$token)
+	function ajax_unlock($id, $token)
 	{
-		$lock_path = Vfs::app_entry_lock_path('calendar',$id);
+		$lock_path = Vfs::app_entry_lock_path('calendar', $id);
 		$lock_owner = 'mailto:'.$GLOBALS['egw_info']['user']['account_email'];
 
 		if (($lock = Vfs::checkLock($lock_path)) && $lock['owner'] == $lock_owner || $lock['token'] == $token)
 		{
-			Vfs::unlock($lock_path,$token,false);
+			Vfs::unlock($lock_path, $token, false);
 		}
 	}
 
@@ -1962,17 +1960,17 @@ 
 	 * 		are called by new mail-app; and we intend to use the stuff passed on by session
 	 * @param string $msg = null
 	 */
-	function meeting(array $event=null, $msg=null)
+	function meeting(array $event = null, $msg = null)
 	{
 		$user = $GLOBALS['egw_info']['user']['account_id'];
 		$readonlys['button[apply]'] = true;
-		$_usesession=!is_array($event);
+		$_usesession = !is_array($event);
 		//special usage if $event is array('event'=>null,'msg'=>'','useSession'=>true) we
 		//are called by new mail-app; and we intend to use the stuff passed on by session
-		if ($event == array('event'=>null,'msg'=>'','useSession'=>true))
+		if ($event == array('event'=>null, 'msg'=>'', 'useSession'=>true))
 		{
-			$event=null; // set to null
-			$_usesession=true; // trigger session read
+			$event = null; // set to null
+			$_usesession = true; // trigger session read
 		}
 		if (!is_array($event))
 		{
@@ -2002,7 +2000,7 @@ 
 			if (($existing_event = $this->bo->read($event['uid'], $event['recurrence'], false, 'ts', null, true)) && // true = read the exception
 				!$existing_event['deleted'])
 			{
-				switch(strtolower($ical_method))
+				switch (strtolower($ical_method))
 				{
 					case 'reply':
 						// first participant is the one replying (our iCal parser adds owner first!)
@@ -2056,25 +2054,25 @@ 
 			}
 			else	// event not in calendar
 			{
-				$readonlys['button[cancel]'] = true;	// no way to remove a canceled event not in calendar
+				$readonlys['button[cancel]'] = true; // no way to remove a canceled event not in calendar
 			}
 			$event['participant_types'] = array();
-			foreach($event['participants'] as $uid => $status)
+			foreach ($event['participants'] as $uid => $status)
 			{
 				$user_type = $user_id = null;
 				calendar_so::split_user($uid, $user_type, $user_id);
 				$event['participants'][$uid] = $event['participant_types'][$user_type][$user_id] =
-					$status && $status !== 'X' ? $status : 'U';	// X --> no status given --> U = unknown
+					$status && $status !== 'X' ? $status : 'U'; // X --> no status given --> U = unknown
 			}
 			//error_log(__METHOD__."(...) parsed as ".array2string($event));
 			$event['recure'] = $this->bo->recure2string($event);
-			$event['all_participants'] = implode(",\n",$this->bo->participants($event, true));
+			$event['all_participants'] = implode(",\n", $this->bo->participants($event, true));
 
 			// EGroupware event has been deleted, dont let user resurect it by accepting again
 			if ($existing_event && $existing_event['deleted'] && strtolower($ical_method) !== 'cancel')
 			{
 				// check if this is an EGroupware event or has an external organizer
-				foreach($existing_event['participants'] as $uid => $status)
+				foreach ($existing_event['participants'] as $uid => $status)
 				{
 					$quantity = $role = null;
 					calendar_so::split_status($status, $quantity, $role);
@@ -2105,23 +2103,23 @@ 
 			// clear notification errors
 			notifications::errors(true);
 
-			switch($button)
+			switch ($button)
 			{
 				case 'reject':
 					if (!$event['id'])
 					{
 						// send reply to organizer
-						$this->bo->send_update(MSG_REJECTED,array('e'.$event['organizer'] => 'DCHAIR'),$event);
-						break;	// no need to store rejected event
+						$this->bo->send_update(MSG_REJECTED, array('e'.$event['organizer'] => 'DCHAIR'), $event);
+						break; // no need to store rejected event
 					}
 					// fall-through
 				case 'accept':
 				case 'tentativ':
-					$status = strtoupper($button[0]);	// A, R or T
+					$status = strtoupper($button[0]); // A, R or T
 					if (!$event['id'])
 					{
 						// if organizer is a EGroupware user, but we have no rights to organizers calendar
-						if (isset($event['owner']) && !$this->bo->check_perms(Acl::ADD,0,$event['owner']))
+						if (isset($event['owner']) && !$this->bo->check_perms(Acl::ADD, 0, $event['owner']))
 						{
 							// --> make organize a participant with role chair and current user the owner
 							$event['participant_types']['u'] = $event['participants'][$event['owner']] =
@@ -2129,7 +2127,7 @@ 
 							$event['owner'] = $this->user;
 						}
 						// store event without notifications!
-						if (($event['id'] = $this->bo->update($event, $ignore_conflicts=true, true, false, true, $msg, true)))
+						if (($event['id'] = $this->bo->update($event, $ignore_conflicts = true, true, false, true, $msg, true)))
 						{
 							$msg[] = lang('Event saved');
 						}
@@ -2143,7 +2141,7 @@ 
 					elseif (self::event_changed($event, $event['old']))
 					{
 						// check if we are allowed to update the event
-						if($this->bo->check_perms(Acl::EDIT, $event['old']))
+						if ($this->bo->check_perms(Acl::EDIT, $event['old']))
 						{
 							if ($event['recurrence'] && !$event['old']['reference'] && ($recur_event = $this->bo->read($event['id'])))
 							{
@@ -2151,9 +2149,9 @@ 
 								$recur_event['recur_exception'][] = $event['recurrence'];
 								// check if we need to move the alarms, because they are next on that exception
 								$this->bo->check_move_alarms($recur_event, null, $event['recurrence']);
-								unset($recur_event['start']); unset($recur_event['end']);	// no update necessary
-								unset($recur_event['alarm']);	// unsetting alarms too, as they cant be updated without start!
-								$this->bo->update($recur_event, $ignore_conflicts=true, true, false, true, $msg, true);
+								unset($recur_event['start']); unset($recur_event['end']); // no update necessary
+								unset($recur_event['alarm']); // unsetting alarms too, as they cant be updated without start!
+								$this->bo->update($recur_event, $ignore_conflicts = true, true, false, true, $msg, true);
 
 								// then we need to create the exception as new event
 								unset($event['id']);
@@ -2168,7 +2166,7 @@ 
 							}
 							unset($event['old']);
 
-							if (($event['id'] = $this->bo->update($event, $ignore_conflicts=true, true, false, true, $msg, true)))
+							if (($event['id'] = $this->bo->update($event, $ignore_conflicts = true, true, false, true, $msg, true)))
 							{
 								$msg[] = lang('Event saved');
 							}
@@ -2218,7 +2216,7 @@ 
 		Framework::message(implode("\n", (array)$msg));
 		$readonlys['button[edit]'] = !$event['id'];
 		$event['ics_method'] = $readonlys['ics_method'] = strtolower($ical_method);
-		switch(strtolower($ical_method))
+		switch (strtolower($ical_method))
 		{
 			case 'reply':
 				$event['ics_method_label'] = lang('Reply to meeting request');
@@ -2232,7 +2230,7 @@ 
 				break;
 		}
 		$tpl = new Etemplate('calendar.meeting');
-		$tpl->exec('calendar.calendar_uiforms.meeting', $event, array(), $readonlys, $event+array(
+		$tpl->exec('calendar.calendar_uiforms.meeting', $event, array(), $readonlys, $event + array(
 			'old' => $existing_event,
 		), 2);
 	}
@@ -2252,11 +2250,11 @@ 
 			'recur_type', 'recur_data', 'recur_interval', 'recur_exception');
 
 		// only compare certain fields, taking account unset, null or '' values
-		$event = array_intersect_key($_event+array('recur_exception'=>array()), array_flip($keys_to_check));
+		$event = array_intersect_key($_event + array('recur_exception'=>array()), array_flip($keys_to_check));
 		$old = array_intersect_key(array_diff($_old, array(null, '')), array_flip($keys_to_check));
 
 		// keep the status of existing participants (users)
-		foreach($old['participants'] as $uid => $status)
+		foreach ($old['participants'] as $uid => $status)
 		{
 			if (is_numeric($uid) && $uid > 0)
 			{
@@ -2276,37 +2274,37 @@ 
 	 * @param array $conflicts array with conflicting events, the events are not garantied to be readable by the user!
 	 * @param array $preserv data to preserv
 	 */
-	function conflicts($event,$conflicts,$preserv)
+	function conflicts($event, $conflicts, $preserv)
 	{
 		$etpl = new Etemplate('calendar.conflicts');
 		$allConflicts = array();
 
-		foreach($conflicts as $k => $conflict)
+		foreach ($conflicts as $k => $conflict)
 		{
-			$is_readable = $this->bo->check_perms(Acl::READ,$conflict);
+			$is_readable = $this->bo->check_perms(Acl::READ, $conflict);
 
 			$conflicts[$k] += array(
 				'icon_participants' => $is_readable ? (count($conflict['participants']) > 1 ? 'users' : 'single') : 'private',
-				'tooltip_participants' => $is_readable ? implode(', ',$this->bo->participants($conflict)) : '',
-				'time' => $this->bo->long_date($conflict['start'],$conflict['end'],true),
-				'conflicting_participants' => implode(",\n",$this->bo->participants(array(
-					'participants' => array_intersect_key((array)$conflict['participants'],$event['participants']),
-				),true,true)),	// show group invitations too
+				'tooltip_participants' => $is_readable ? implode(', ', $this->bo->participants($conflict)) : '',
+				'time' => $this->bo->long_date($conflict['start'], $conflict['end'], true),
+				'conflicting_participants' => implode(",\n", $this->bo->participants(array(
+					'participants' => array_intersect_key((array)$conflict['participants'], $event['participants']),
+				), true, true)), // show group invitations too
 				'icon_recur' => $conflict['recur_type'] != MCAL_RECUR_NONE ? 'recur' : '',
 				'text_recur' => $conflict['recur_type'] != MCAL_RECUR_NONE ? lang('Recurring event') : ' ',
 			);
-			$allConflicts += array_intersect_key((array)$conflict['participants'],$event['participants']);
+			$allConflicts += array_intersect_key((array)$conflict['participants'], $event['participants']);
 		}
 		$content = $event + array(
-			'conflicts' => array_values($conflicts),	// conflicts have id-start as key
+			'conflicts' => array_values($conflicts), // conflicts have id-start as key
 		);
-		$GLOBALS['egw_info']['flags']['app_header'] = lang('calendar') . ' - ' . lang('Scheduling conflict');
+		$GLOBALS['egw_info']['flags']['app_header'] = lang('calendar').' - '.lang('Scheduling conflict');
 		$resources_config = Api\Config::read('resources');
 		$readonlys = array();
 
 		foreach (array_keys($allConflicts) as $pId)
 		{
-			if(substr($pId,0,1) == 'r' && $resources_config ) // resources Allow ignore conflicts
+			if (substr($pId, 0, 1) == 'r' && $resources_config) // resources Allow ignore conflicts
 			{
 
 				switch ($resources_config['ignoreconflicts'])
@@ -2326,7 +2324,7 @@ 
 				}
 			}
 		}
-		$etpl->exec('calendar.calendar_uiforms.process_edit',$content,array(),$readonlys,array_merge($event,$preserv),$preserv['no_popup'] ? 0 : 2);
+		$etpl->exec('calendar.calendar_uiforms.process_edit', $content, array(), $readonlys, array_merge($event, $preserv), $preserv['no_popup'] ? 0 : 2);
 	}
 
 	/**
@@ -2344,7 +2342,7 @@ 
 		//$response->addAlert(__METHOD__.'('.array2string($edit_content).')');
 
 		// convert start/end date-time values to timestamps
-		foreach(array('start', 'end') as $name)
+		foreach (array('start', 'end') as $name)
 		{
 			if (!empty($edit_content[$name]))
 			{
@@ -2374,7 +2372,7 @@ 
 			'recur_type'   => $edit_content['recur_type'],
 			'participants' => array(),
 		);
-		foreach($edit_content['participants'] as $key => $data)
+		foreach ($edit_content['participants'] as $key => $data)
 		{
 			if (is_numeric($key) && !$edit_content['participants']['delete'][$data['uid']] &&
 				!$edit_content['participants']['delete'][md5($data['uid'])])
@@ -2389,21 +2387,21 @@ 
 		// default search parameters
 		$content['start_time'] = $edit_content['whole_day'] ? 0 : $this->cal_prefs['workdaystarts'];
 		$content['end_time'] = $this->cal_prefs['workdayends'];
-		if ($this->cal_prefs['workdayends']*HOUR_s < $this->cal_prefs['workdaystarts']*HOUR_s+$content['duration'])
+		if ($this->cal_prefs['workdayends'] * HOUR_s < $this->cal_prefs['workdaystarts'] * HOUR_s + $content['duration'])
 		{
-			$content['end_time'] = 0;	// no end-time limit, as duration would never fit
+			$content['end_time'] = 0; // no end-time limit, as duration would never fit
 		}
 		$content['weekdays'] = MCAL_M_WEEKDAYS;
 
 		$content['search_window'] = 7 * DAY_s;
 
 		// store content in session
-		Api\Cache::setSession('calendar','freetimesearch_args_'.(int)$edit_content['id'],$content);
+		Api\Cache::setSession('calendar', 'freetimesearch_args_'.(int)$edit_content['id'], $content);
 
 		//menuaction=calendar.calendar_uiforms.freetimesearch&values2url('start,end,duration,participants,recur_type,whole_day'),ft_search,700,500
-		$link = 'calendar.calendar_uiforms.freetimesearch&cal_id='. $edit_content['id'];
+		$link = 'calendar.calendar_uiforms.freetimesearch&cal_id='.$edit_content['id'];
 
-		$response->call('app.calendar.freetime_search_popup',$link);
+		$response->call('app.calendar.freetime_search_popup', $link);
 
 		//$response->addScriptCall('egw_openWindowCentered2',$link,'ft_search',700,500);
 
@@ -2426,26 +2424,26 @@ 
 	{
 		$etpl = new Etemplate('calendar.freetimesearch');
 		$sel_options['search_window'] = array(
-			7*DAY_s		=> lang('one week'),
-			14*DAY_s	=> lang('two weeks'),
-			31*DAY_s	=> lang('one month'),
-			92*DAY_s	=> lang('three month'),
-			365*DAY_s	=> lang('one year'),
+			7 * DAY_s		=> lang('one week'),
+			14 * DAY_s	=> lang('two weeks'),
+			31 * DAY_s	=> lang('one month'),
+			92 * DAY_s	=> lang('three month'),
+			365 * DAY_s	=> lang('one year'),
 		);
 		if (!is_array($content))
 		{
 			// get content from session (and delete it immediatly)
-			$content = Api\Cache::getSession('calendar','freetimesearch_args_'.(int)$_GET['cal_id']);
-			Api\Cache::unsetSession('calendar','freetimesearch_args_'.(int)$_GET['cal_id']);
+			$content = Api\Cache::getSession('calendar', 'freetimesearch_args_'.(int)$_GET['cal_id']);
+			Api\Cache::unsetSession('calendar', 'freetimesearch_args_'.(int)$_GET['cal_id']);
 			//Since the start_time and end_time from calendar_user_preferences are numbers, not timestamp, in order to show them on date-timeonly
 			//widget we need to convert them from numbers to timestamps, only for the first time when we have template without content
 			$sTime = $content['start_time'];
 			$eTime = $content['end_time'];
-			$content['start_time'] = strtotime(((strlen($content['start_time'])<2)?("0".$content['start_time']):$content['start_time']).":00");
-			$content['end_time'] = strtotime(((strlen($content['end_time'])<2)?("0".$content['end_time']):$content['end_time']).":00");
+			$content['start_time'] = strtotime(((strlen($content['start_time']) < 2) ? ("0".$content['start_time']) : $content['start_time']).":00");
+			$content['end_time'] = strtotime(((strlen($content['end_time']) < 2) ? ("0".$content['end_time']) : $content['end_time']).":00");
 
 			// pick a searchwindow fitting the duration (search for a 10 day slot in a one week window never succeeds)
-			foreach(array_keys($sel_options['search_window']) as $window)
+			foreach (array_keys($sel_options['search_window']) as $window)
 			{
 				if ($window > $content['duration'])
 				{
@@ -2472,19 +2470,19 @@ 
 		{
 			$content['msg'] .= lang('Only the initial date of that recurring event is checked!');
 		}
-		$content['freetime'] = $this->freetime($content['participants'],$content['start'],$content['start']+$content['search_window'],$content['duration'],$content['cal_id']);
-		$content['freetime'] = $this->split_freetime_daywise($content['freetime'],$content['duration'],(is_array($content['weekdays'])?$weekds:$content['weekdays']),$sTime,$eTime,$sel_options);
+		$content['freetime'] = $this->freetime($content['participants'], $content['start'], $content['start'] + $content['search_window'], $content['duration'], $content['cal_id']);
+		$content['freetime'] = $this->split_freetime_daywise($content['freetime'], $content['duration'], (is_array($content['weekdays']) ? $weekds : $content['weekdays']), $sTime, $eTime, $sel_options);
 
-		$GLOBALS['egw_info']['flags']['app_header'] = lang('calendar') . ' - ' . lang('freetime search');
+		$GLOBALS['egw_info']['flags']['app_header'] = lang('calendar').' - '.lang('freetime search');
 
 		$sel_options['duration'] = $this->durations;
 		if ($content['duration'] && isset($sel_options['duration'][$content['duration']])) $content['end'] = '';
 
-		$etpl->exec('calendar.calendar_uiforms.freetimesearch',$content,$sel_options,NULL,array(
+		$etpl->exec('calendar.calendar_uiforms.freetimesearch', $content, $sel_options, NULL, array(
 				'participants'	=> $content['participants'],
 				'cal_id'		=> $content['cal_id'],
 				'recur_type'	=> $content['recur_type'],
-			),2);
+			), 2);
 	}
 
 	/**
@@ -2497,15 +2495,15 @@ 
 	 * @param int $cal_id own id for existing events, to exclude them from being busy-time, default 0
 	 * @return array of free time-slots: array with start and end values
 	 */
-	function freetime($participants,$start,$end,$duration=1,$cal_id=0)
+	function freetime($participants, $start, $end, $duration = 1, $cal_id = 0)
 	{
-		if ($this->debug > 2) $this->bo->debug_message(__METHOD__.'(participants=%1, start=%2, end=%3, duration=%4, cal_id=%5)',true,$participants,$start,$end,$duration,$cal_id);
+		if ($this->debug > 2) $this->bo->debug_message(__METHOD__.'(participants=%1, start=%2, end=%3, duration=%4, cal_id=%5)', true, $participants, $start, $end, $duration, $cal_id);
 
 		$busy = $this->bo->search(array(
 			'start' => $start,
 			'end'	=> $end,
 			'users'	=> $participants,
-			'ignore_acl' => true,	// otherwise we get only events readable by the user
+			'ignore_acl' => true, // otherwise we get only events readable by the user
 		));
 		$busy[] = array(	// add end-of-search-date as event, to cope with empty search and get freetime til that date
 			'start'	=> $end,
@@ -2514,15 +2512,15 @@ 
 		$ft_start = $start;
 		$freetime = array();
 		$n = 0;
-		foreach($busy as $event)
+		foreach ($busy as $event)
 		{
-			if ((int)$cal_id && $event['id'] == (int)$cal_id) continue;	// ignore our own event
+			if ((int)$cal_id && $event['id'] == (int)$cal_id) continue; // ignore our own event
 
  			if ($event['non_blocking']) continue; // ignore non_blocking events
 
 			// check if from all wanted participants at least one has a not rejected status in found event
 			$non_rejected_found = false;
-			foreach($participants as $uid)
+			foreach ($participants as $uid)
 			{
 				$status = $event['participants'][$uid];
 				$quantity = $role = null;
@@ -2541,10 +2539,10 @@ 
 
 			if ($this->debug)
 			{
-				echo "<p>ft_start=".date('D d.m.Y H:i',$ft_start)."<br>\n";
+				echo "<p>ft_start=".date('D d.m.Y H:i', $ft_start)."<br>\n";
 				echo "event[title]=$event[title]<br>\n";
-				echo "event[start]=".date('D d.m.Y H:i',$event['start'])."<br>\n";
-				echo "event[end]=".date('D d.m.Y H:i',$event['end'])."<br>\n";
+				echo "event[start]=".date('D d.m.Y H:i', $event['start'])."<br>\n";
+				echo "event[end]=".date('D d.m.Y H:i', $event['end'])."<br>\n";
 			}
 			// $events ends before our actual position ==> ignore it
 			if ($event['end'] < $ft_start)
@@ -2568,11 +2566,11 @@ 
 					'start'	=> $ft_start,
 					'end'	=> $ft_end,
 				);
-				if ($this->debug > 1) echo "<p>freetime: ".date('D d.m.Y H:i',$ft_start)." - ".date('D d.m.Y H:i',$ft_end)."</p>\n";
+				if ($this->debug > 1) echo "<p>freetime: ".date('D d.m.Y H:i', $ft_start)." - ".date('D d.m.Y H:i', $ft_end)."</p>\n";
 			}
 			$ft_start = $event['end'];
 		}
-		if ($this->debug > 0) $this->bo->debug_message('uiforms::freetime(participants=%1, start=%2, end=%3, duration=%4, cal_id=%5) freetime=%6',true,$participants,$start,$end,$duration,$cal_id,$freetime);
+		if ($this->debug > 0) $this->bo->debug_message('uiforms::freetime(participants=%1, start=%2, end=%3, duration=%4, cal_id=%5) freetime=%6', true, $participants, $start, $end, $duration, $cal_id, $freetime);
 
 		return $freetime;
 	}
@@ -2592,46 +2590,46 @@ 
 	 */
 	function split_freetime_daywise($freetime, $duration, $weekdays, $_start_time, $_end_time, &$sel_options)
 	{
-		if ($this->debug > 1) $this->bo->debug_message('uiforms::split_freetime_daywise(freetime=%1, duration=%2, start_time=%3, end_time=%4)',true,$freetime,$duration,$_start_time,$_end_time);
+		if ($this->debug > 1) $this->bo->debug_message('uiforms::split_freetime_daywise(freetime=%1, duration=%2, start_time=%3, end_time=%4)', true, $freetime, $duration, $_start_time, $_end_time);
 
 		$freetime_daywise = array();
 		if (!is_array($sel_options)) $sel_options = array();
 		$time_format = $this->common_prefs['timeformat'] == 12 ? 'h:i a' : 'H:i';
 
-		$start_time = (int) $_start_time;	// ignore leading zeros
-		$end_time   = (int) $_end_time;
+		$start_time = (int)$_start_time; // ignore leading zeros
+		$end_time   = (int)$_end_time;
 
 		// ignore the end_time, if duration would never fit
-		if (($end_time - $start_time)*HOUR_s < $duration)
+		if (($end_time - $start_time) * HOUR_s < $duration)
 		{
 			$end_time = 0;
-			if ($this->debug > 1) $this->bo->debug_message('uiforms::split_freetime_daywise(, duration=%2, start_time=%3,..) end_time set to 0, it never fits durationn otherwise',true,$duration,$start_time);
+			if ($this->debug > 1) $this->bo->debug_message('uiforms::split_freetime_daywise(, duration=%2, start_time=%3,..) end_time set to 0, it never fits durationn otherwise', true, $duration, $start_time);
 		}
 		$n = 0;
-		foreach($freetime as $ft)
+		foreach ($freetime as $ft)
 		{
 			$adaybegin = $this->bo->date2array($ft['start']);
 			$adaybegin['hour'] = $adaybegin['minute'] = $adaybegin['second'] = 0;
 			unset($adaybegin['raw']);
 			$daybegin = $this->bo->date2ts($adaybegin);
 
-			for($t = $daybegin; $t < $ft['end']; $t += DAY_s,$daybegin += DAY_s)
+			for ($t = $daybegin; $t < $ft['end']; $t += DAY_s, $daybegin += DAY_s)
 			{
-				$dow = date('w',$daybegin+DAY_s/2);	// 0=Sun, .., 6=Sat
-				$mcal_dow = pow(2,$dow);
-				if (!($weekdays & $mcal_dow))
+				$dow = date('w', $daybegin + DAY_s / 2); // 0=Sun, .., 6=Sat
+				$mcal_dow = pow(2, $dow);
+				if (!($weekdays&$mcal_dow))
 				{
 					//echo "wrong day of week $dow<br>\n";
-					continue;	// wrong day of week
+					continue; // wrong day of week
 				}
 				$start = $t < $ft['start'] ? $ft['start'] : $t;
 
-				if ($start-$daybegin < $start_time*HOUR_s)	// start earlier then start_time
+				if ($start - $daybegin < $start_time * HOUR_s)	// start earlier then start_time
 				{
-					$start = $daybegin + $start_time*HOUR_s;
+					$start = $daybegin + $start_time * HOUR_s;
 				}
 				// if end_time given use it, else the original slot's end
-				$end = $end_time ? $daybegin + $end_time*HOUR_s : $ft['end'];
+				$end = $end_time ? $daybegin + $end_time * HOUR_s : $ft['end'];
 				if ($end > $ft['end']) $end = $ft['end'];
 
 				// slot to small for duration
@@ -2645,11 +2643,11 @@ 
 					'end'	=> $end,
 				);
 				$times = array();
-				for ($s = $start; $s+$duration <= $end && $s < $daybegin+DAY_s; $s += 60*$this->cal_prefs['interval'])
+				for ($s = $start; $s + $duration <= $end && $s < $daybegin + DAY_s; $s += 60 * $this->cal_prefs['interval'])
 				{
 					$e = $s + $duration;
-					$end_date = $e-$daybegin > DAY_s ? lang(date('l',$e)).' '.date($this->common_prefs['dateformat'],$e).' ' : '';
-					$times[$s] = date($time_format,$s).' - '.$end_date.date($time_format,$e);
+					$end_date = $e - $daybegin > DAY_s ? lang(date('l', $e)).' '.date($this->common_prefs['dateformat'], $e).' ' : '';
+					$times[$s] = date($time_format, $s).' - '.$end_date.date($time_format, $e);
 				}
 				$sel_options[$n.'start'] = $times;
 			}
@@ -2664,13 +2662,13 @@ 
      * @param boolean $return_error should an error-msg be returned or a regular page with it generated (default)
      * @return string error-msg if $return_error
      */
-    function export($content=0,$return_error=false)
+    function export($content = 0, $return_error = false)
     {
 		$boical = new calendar_ical();
 		#error_log(__METHOD__.print_r($content,true));
 		if (is_numeric($cal_id = $content ? $content : $_REQUEST['cal_id']))
 		{
-			if (!($ical =& $boical->exportVCal(array($cal_id),'2.0','PUBLISH',false)))
+			if (!($ical = & $boical->exportVCal(array($cal_id), '2.0', 'PUBLISH', false)))
 			{
 				$msg = lang('Permission denied');
 
@@ -2678,20 +2676,20 @@ 
 			}
 			else
 			{
-				html::content_header('event.ics','text/calendar',bytes($ical));
+				html::content_header('event.ics', 'text/calendar', bytes($ical));
 				echo $ical;
 				common::egw_exit();
 			}
 		}
 		if (is_array($content))
 		{
-			$events =& $this->bo->search(array(
+			$events = & $this->bo->search(array(
 				'start' => $content['start'],
 				'end'   => $content['end'],
 				'enum_recuring' => false,
 				'daywise'       => false,
 				'owner'         => $this->owner,
-				'date_format'   => 'server',    // timestamp in server time for boical class
+				'date_format'   => 'server', // timestamp in server time for boical class
 			));
 			if (!$events)
 			{
@@ -2699,8 +2697,8 @@ 
 			}
 			else
 			{
-				$ical =& $boical->exportVCal($events,'2.0','PUBLISH',false);
-				html::content_header($content['file'] ? $content['file'] : 'event.ics','text/calendar',bytes($ical));
+				$ical = & $boical->exportVCal($events, '2.0', 'PUBLISH', false);
+				html::content_header($content['file'] ? $content['file'] : 'event.ics', 'text/calendar', bytes($ical));
 				echo $ical;
 				common::egw_exit();
 			}
@@ -2716,9 +2714,9 @@ 
 		}
 		$content['msg'] = $msg;
 
-		$GLOBALS['egw_info']['flags']['app_header'] = lang('calendar') . ' - ' . lang('iCal Export');
+		$GLOBALS['egw_info']['flags']['app_header'] = lang('calendar').' - '.lang('iCal Export');
 		$etpl = new etemplate_new('calendar.export');
-		$etpl->exec('calendar.calendar_uiforms.export',$content);
+		$etpl->exec('calendar.calendar_uiforms.export', $content);
     }
 
 	/**
@@ -2726,7 +2724,7 @@ 
 	 *
 	 * @param array $_content
 	 */
-	function cat_acl(array $_content=null)
+	function cat_acl(array $_content = null)
 	{
 		if (!$GLOBALS['egw_info']['user']['apps']['admin'])
 		{
@@ -2738,15 +2736,15 @@ 
 			unset($_content['button']);
 			if ($button != 'cancel')	// store changed Acl
 			{
-				foreach($_content as $data)
+				foreach ($_content as $data)
 				{
 					if (!($cat_id = $data['cat_id'])) continue;
-					foreach(array_merge((array)$data['add'],(array)$data['status'],array_keys((array)$data['old'])) as $account_id)
+					foreach (array_merge((array)$data['add'], (array)$data['status'], array_keys((array)$data['old'])) as $account_id)
 					{
 						$rights = 0;
-						if (in_array($account_id,(array)$data['add'])) $rights |= calendar_boupdate::CAT_ACL_ADD;
-						if (in_array($account_id,(array)$data['status'])) $rights |= calendar_boupdate::CAT_ACL_STATUS;
-						if ($account_id) $this->bo->set_cat_rights($cat_id,$account_id,$rights);
+						if (in_array($account_id, (array)$data['add'])) $rights |= calendar_boupdate::CAT_ACL_ADD;
+						if (in_array($account_id, (array)$data['status'])) $rights |= calendar_boupdate::CAT_ACL_STATUS;
+						if ($account_id) $this->bo->set_cat_rights($cat_id, $account_id, $rights);
 					}
 				}
 			}
@@ -2758,20 +2756,20 @@ 
 				), 'admin');
 			}
 		}
-		$content= $preserv = array();
+		$content = $preserv = array();
 		$n = 1;
-		foreach($this->bo->get_cat_rights() as $Lcat_id => $data)
+		foreach ($this->bo->get_cat_rights() as $Lcat_id => $data)
 		{
-			$cat_id = substr($Lcat_id,1);
+			$cat_id = substr($Lcat_id, 1);
 			$row = array(
 				'cat_id' => $cat_id,
 				'add' => array(),
 				'status' => array(),
 			);
-			foreach($data as $account_id => $rights)
+			foreach ($data as $account_id => $rights)
 			{
-				if ($rights & calendar_boupdate::CAT_ACL_ADD) $row['add'][] = $account_id;
-				if ($rights & calendar_boupdate::CAT_ACL_STATUS) $row['status'][] = $account_id;
+				if ($rights&calendar_boupdate::CAT_ACL_ADD) $row['add'][] = $account_id;
+				if ($rights&calendar_boupdate::CAT_ACL_STATUS) $row['status'][] = $account_id;
 			}
 			$content[$n] = $row;
 			$preserv[$n] = array(
@@ -2787,7 +2785,7 @@ 
 		$GLOBALS['egw_info']['flags']['app_header'] = lang('Calendar').' - '.lang('Category ACL');
 		$tmp = new Etemplate('calendar.cat_acl');
 		$GLOBALS['egw_info']['flags']['nonavbar'] = 1;
-		$tmp->exec('calendar.calendar_uiforms.cat_acl',$content,null,$readonlys,$preserv);
+		$tmp->exec('calendar.calendar_uiforms.cat_acl', $content, null, $readonlys, $preserv);
 	}
 
 	/**
@@ -2837,18 +2835,18 @@ 
 
 
 		// Get participants for only this one, if it's recurring.  The date is on the end of the value.
-		if($content['recur_type'] || $content['recurrence'])
+		if ($content['recur_type'] || $content['recurrence'])
 		{
 			$content['history']['filter'] = array(
 				'(history_status NOT LIKE \'participants%\' OR (history_status LIKE \'participants%\' AND (
-					history_new_value LIKE \'%' . Api\Storage\Tracking::ONE2N_SEPERATOR . $content['recurrence'] . '\' OR
-					history_old_value LIKE \'%' . Api\Storage\Tracking::ONE2N_SEPERATOR . $content['recurrence'] . '\')))'
+					history_new_value LIKE \'%' . Api\Storage\Tracking::ONE2N_SEPERATOR.$content['recurrence'].'\' OR
+					history_old_value LIKE \'%' . Api\Storage\Tracking::ONE2N_SEPERATOR.$content['recurrence'].'\')))'
 			);
 		}
 
 		// Translate labels
 		$tracking = new calendar_tracking();
-		foreach($tracking->field2label as $field => $label)
+		foreach ($tracking->field2label as $field => $label)
 		{
 			$sel_options[$status][$field] = lang($label);
 		}
@@ -2867,44 +2865,44 @@ 
 	 *	which particular instance was dragged
 	 * @return string XML response if no error occurs
 	 */
-	function ajax_moveEvent($_eventId,$calendarOwner,$targetDateTime,$targetOwner,$durationT=null,$seriesInstance=null)
+	function ajax_moveEvent($_eventId, $calendarOwner, $targetDateTime, $targetOwner, $durationT = null, $seriesInstance = null)
 	{
-		list($eventId, $date) = explode(':', $_eventId,2);
+		list($eventId, $date) = explode(':', $_eventId, 2);
 		$ignore_conflicts = false;
 
 		// we do not allow dragging into another users calendar ATM
-		if($targetOwner < 0)
+		if ($targetOwner < 0)
 		{
 			$targetOwner = array($targetOwner);
 		}
-		if($targetOwner == 0 || is_array($targetOwner) && $targetOwner[0] == 0)
+		if ($targetOwner == 0 || is_array($targetOwner) && $targetOwner[0] == 0)
 		{
 			$targetOwner = $calendarOwner;
 		}
 		// But you may be viewing multiple users, or a group calendar and
 		// dragging your event - dragging across calendars does not change owner
-		if(is_array($targetOwner) && !in_array($calendarOwner, $targetOwner))
+		if (is_array($targetOwner) && !in_array($calendarOwner, $targetOwner))
 		{
 			$return = true;
-			foreach($targetOwner as $owner)
+			foreach ($targetOwner as $owner)
 			{
-				if($owner < 0 && in_array($calendarOwner, $GLOBALS['egw']->accounts->members($owner,true)))
+				if ($owner < 0 && in_array($calendarOwner, $GLOBALS['egw']->accounts->members($owner, true)))
 				{
 					$return = false;
 					break;
 				}
-				else if ($owner > 0 && $this->bo->check_perms(Acl::EDIT, $eventId,0,'ts',$date))
+				else if ($owner > 0 && $this->bo->check_perms(Acl::EDIT, $eventId, 0, 'ts', $date))
 				{
 					$return = false;
 					break;
 				}
 			}
-			if($return) return;
+			if ($return) return;
 		}
-		$old_event=$event=$this->bo->read($eventId);
+		$old_event = $event = $this->bo->read($eventId);
 		if (!$durationT)
 		{
-			$duration=$event['end']-$event['start'];
+			$duration = $event['end'] - $event['start'];
 		}
 		// Drag a normal event to whole day non-blocking
 		else if ($durationT == 'whole_day')
@@ -2912,7 +2910,7 @@ 
 			$event['whole_day'] = true;
 			$event['non_blocking'] = true;
 			// Make duration whole days, less 1 second
-			$duration = round(($event['end']-$event['start'])/DAY_s) * DAY_s - 1;
+			$duration = round(($event['end'] - $event['start']) / DAY_s) * DAY_s - 1;
 		}
 		else
 		{
@@ -2925,19 +2923,19 @@ 
 			$d = new Api\DateTime($date, Api\DateTime::$user_timezone);
 			if (!empty($event['whole_day']))
 			{
-				$d =& $this->bo->so->startOfDay($d);
+				$d = & $this->bo->so->startOfDay($d);
 				$d->setUser();
 			}
 			$event = $this->bo->read($eventId, $d, true);
 
 			// For DnD, create an exception if they gave the date
 			$preserv = null;
-			$this->_create_exception($event,$preserv);
+			$this->_create_exception($event, $preserv);
 			unset($event['id']);
 			$links = $event['link_to']['to_id'];
 
 			$messages = null;
-			$conflicts = $this->bo->update($event,false,true,false,true,$messages);
+			$conflicts = $this->bo->update($event, false, true, false, true, $messages);
 			if (!is_array($conflicts) && $conflicts)
 			{
 				// now we need to add the original start as recur-execption to the series
@@ -2945,28 +2943,28 @@ 
 				$recur_event['recur_exception'][] = $d->format('ts');
 				// check if we need to move the alarms, because they are next on that exception
 				$this->bo->check_move_alarms($recur_event, null, $d);
-				unset($recur_event['start']); unset($recur_event['end']);	// no update necessary
-				unset($recur_event['alarm']);	// unsetting alarms too, as they cant be updated without start!
-				$this->bo->update($recur_event,true);	// no conflict check here
+				unset($recur_event['start']); unset($recur_event['end']); // no update necessary
+				unset($recur_event['alarm']); // unsetting alarms too, as they cant be updated without start!
+				$this->bo->update($recur_event, true); // no conflict check here
 
 				// Sending null will trigger a removal of the original for that date
 				Api\Json\Response::get()->generic('data', array('uid' => 'calendar::'.$_eventId, 'data' => null));
 
 				unset($recur_event);
-				unset($event['edit_single']);			// if we further edit it, it's just a single event
+				unset($event['edit_single']); // if we further edit it, it's just a single event
 				unset($preserv['edit_single']);
 			}
 		}
 
 		$d = new Api\DateTime($targetDateTime, Api\DateTime::$user_timezone);
 		$event['start'] = $d->format('ts');
-		$event['end'] = $event['start']+$duration;
+		$event['end'] = $event['start'] + $duration;
 
 		if ($event['recur_type'] != MCAL_RECUR_NONE && !$date && $seriesInstance)
 		{
 			// calculate offset against clicked recurrance,
 			// depending on which is smaller
-			$offset = Api\DateTime::to($targetDateTime,'ts') - Api\DateTime::to($seriesInstance,'ts');
+			$offset = Api\DateTime::to($targetDateTime, 'ts') - Api\DateTime::to($seriesInstance, 'ts');
 			$event['start'] = $old_event['start'] + $offset;
 			$event['duration'] = $duration;
 
@@ -2977,31 +2975,31 @@ 
 			// Can't handle conflict.  Just ignore it.
 			$ignore_conflicts = true;
 		}
-		if(!$event['recur_type'])
+		if (!$event['recur_type'])
 		{
 			$this->bo->check_move_alarms($event, $old_event);
 		}
 
 		// Drag a whole day to a time
-		if($durationT && $durationT != 'whole_day')
+		if ($durationT && $durationT != 'whole_day')
 		{
 			$event['whole_day'] = ($duration == DAY_s);
 			$event['non_blocking'] = false;
 			// If there's a conflict, it won't save the change and the conflict popup will be blank
 			// so save the change now, and then let the conflict check happen.
 			$message = null;
-			$this->bo->update($event,true, true, false, true, $message,true);
+			$this->bo->update($event, true, true, false, true, $message, true);
 
 			// Whole day non blocking with DAY_s would add a day
-			if($duration==DAY_s) $duration=0;
+			if ($duration == DAY_s) $duration = 0;
 		}
 
 		$status_reset_to_unknown = false;
 		$sameday = (date('Ymd', $old_event['start']) == date('Ymd', $event['start']));
-		foreach((array)$event['participants'] as $uid => $status)
+		foreach ((array)$event['participants'] as $uid => $status)
 		{
 			$q = $r = null;
-			calendar_so::split_status($status,$q,$r);
+			calendar_so::split_status($status, $q, $r);
 			if ($uid[0] != 'c' && $uid[0] != 'e' && $uid != $this->bo->user && $status != 'U')
 			{
 				$preferences = new Api\Preferences($uid);
@@ -3014,29 +3012,29 @@ 
 						if ($sameday) break;
 					default:
 						$status_reset_to_unknown = true;
-						$event['participants'][$uid] = calendar_so::combine_status('U',$q,$r);
+						$event['participants'][$uid] = calendar_so::combine_status('U', $q, $r);
 						// todo: report reset status to user
 				}
 			}
 		}
 
 		$message = false;
-		$conflicts=$this->bo->update($event,$ignore_conflicts, true, false, true, $message);
+		$conflicts = $this->bo->update($event, $ignore_conflicts, true, false, true, $message);
 
 		// Save links
-		if($links)
+		if ($links)
 		{
 			Link::link('calendar', $event['id'], $links);
 		}
 
-		$this->update_client($event['id'],$d);
+		$this->update_client($event['id'], $d);
 		$response = Api\Json\Response::get();
-		if(!is_array($conflicts) && $conflicts)
+		if (!is_array($conflicts) && $conflicts)
 		{
-			if(is_int($conflicts))
+			if (is_int($conflicts))
 			{
 				$event['id'] = $conflicts;
-				$response->call('egw.refresh', '','calendar',$event['id'],'edit');
+				$response->call('egw.refresh', '', 'calendar', $event['id'], 'edit');
 			}
 		}
 		else if ($conflicts)
@@ -3049,21 +3047,21 @@ 
 					.'&end='.$event['end']
 					.'&non_interactive=true'
 					.'&cancel_needs_refresh=true',
-				'',750,410);
+				'', 750, 410);
 		}
 		else if ($message)
 		{
-			$response->call('egw.message',  implode('<br />', $message));
+			$response->call('egw.message', implode('<br />', $message));
 		}
-		if($event['id'] != $eventId ) $this->update_client($_eventId);
+		if ($event['id'] != $eventId) $this->update_client($_eventId);
 		if ($status_reset_to_unknown)
 		{
-			foreach((array)$event['participants'] as $uid => $status)
+			foreach ((array)$event['participants'] as $uid => $status)
 			{
 				if ($uid[0] != 'c' && $uid[0] != 'e' && $uid != $this->bo->user)
 				{
-					calendar_so::split_status($status,$q,$r);
-					$status = calendar_so::combine_status('U',$q,$r);
+					calendar_so::split_status($status, $q, $r);
+					$status = calendar_so::combine_status('U', $q, $r);
 					$this->bo->set_status($event['id'], $uid, $status, 0, true);
 				}
 			}
@@ -3080,7 +3078,7 @@ 
 	{
 		list($eventId, $date) = explode(':', $_eventId);
 		$event = $this->bo->read($eventId);
-		if($date)
+		if ($date)
 		{
 			$d = new Api\DateTime($date, Api\DateTime::$user_timezone);
 		}
@@ -3090,29 +3088,29 @@ 
 		{
 			if (!empty($event['whole_day']))
 			{
-				$d =& $this->bo->so->startOfDay($date);
+				$d = & $this->bo->so->startOfDay($date);
 				$d->setUser();
 			}
 			$event = $this->bo->read($eventId, $d, true);
 			$date = $d->format('ts');
 		}
-		if($event['participants'][$uid])
+		if ($event['participants'][$uid])
 		{
 			$q = $r = null;
-			calendar_so::split_status($event['participants'][$uid],$q,$r);
-			$event['participants'][$uid] = $status = calendar_so::combine_status($status,$q,$r);
-			$this->bo->set_status($event['id'],$uid,$status,$date,true);
+			calendar_so::split_status($event['participants'][$uid], $q, $r);
+			$event['participants'][$uid] = $status = calendar_so::combine_status($status, $q, $r);
+			$this->bo->set_status($event['id'], $uid, $status, $date, true);
 		}
 		else
 		{
 			// Group membership
-			foreach(array_keys($event['participants']) as $id)
+			foreach (array_keys($event['participants']) as $id)
 			{
-				if($GLOBALS['egw']->accounts->get_type($id) == 'g' && in_array($uid,$GLOBALS['egw']->accounts->members($id,true)))
+				if ($GLOBALS['egw']->accounts->get_type($id) == 'g' && in_array($uid, $GLOBALS['egw']->accounts->members($id, true)))
 				{
-					calendar_so::split_status($event['participants'][$uid],$q,$r);
-					$event['participants'][$uid] = $status = calendar_so::combine_status($status,$q,$r);
-					$this->bo->set_status($event['id'],$uid,$status,$date,true);
+					calendar_so::split_status($event['participants'][$uid], $q, $r);
+					$event['participants'][$uid] = $status = calendar_so::combine_status($status, $q, $r);
+					$this->bo->set_status($event['id'], $uid, $status, $date, true);
 					break;
 				}
 			}
@@ -3120,7 +3118,7 @@ 
 
 		// Directly update stored data.  If event is still visible, it will
 		// be notified & update itself.
-		$this->update_client($eventId,$d);
+		$this->update_client($eventId, $d);
 	}
 
 	/**
@@ -3128,8 +3126,8 @@ 
 	 */
 	public function ajax_delete($eventId)
 	{
-		list($id, $date) = explode(':',$eventId);
-		$event=$this->bo->read($id);
+		list($id, $date) = explode(':', $eventId);
+		$event = $this->bo->read($id);
 		$response = Api\Json\Response::get();
 
 		if ($this->bo->delete($event['id'], (int)$date))
@@ -3142,11 +3140,11 @@ 
 			{
 				$msg = lang('Event deleted');
 			}
-			$response->apply('egw.refresh', Array($msg,'calendar',$eventId,'delete'));
+			$response->apply('egw.refresh', Array($msg, 'calendar', $eventId, 'delete'));
 		}
 		else
 		{
-			$response->apply('egw.message', Array(lang('Error')),'error');
+			$response->apply('egw.message', Array(lang('Error')), 'error');
 		}
 	}
 
@@ -3159,10 +3157,10 @@ 
 	 */
 	public function ajax_invite($_eventId, $invite = array(), $remove = array())
 	{
-		list($eventId, $date) = explode(':', $_eventId,2);
+		list($eventId, $date) = explode(':', $_eventId, 2);
 
 		$event = $this->bo->read($eventId);
-		if($date)
+		if ($date)
 		{
 			$d = new Api\DateTime($date, Api\DateTime::$user_timezone);
 		}
@@ -3172,17 +3170,17 @@ 
 		{
 			if (!empty($event['whole_day']))
 			{
-				$d =& $this->bo->so->startOfDay($date);
+				$d = & $this->bo->so->startOfDay($date);
 				$d->setUser();
 			}
 			$event = $this->bo->read($eventId, $d, true);
 			// For DnD, create an exception if they gave the date
 			$preserv = null;
-			$this->_create_exception($event,$preserv);
+			$this->_create_exception($event, $preserv);
 			unset($event['id']);
 
 			$messages = null;
-			$conflicts = $this->bo->update($event,true,true,false,true,$messages);
+			$conflicts = $this->bo->update($event, true, true, false, true, $messages);
 			if (!is_array($conflicts) && $conflicts)
 			{
 				// now we need to add the original start as recur-execption to the series
@@ -3190,28 +3188,28 @@ 
 				$recur_event['recur_exception'][] = $d->format('ts');
 				// check if we need to move the alarms, because they are next on that exception
 				$this->bo->check_move_alarms($recur_event, null, $d);
-				unset($recur_event['start']); unset($recur_event['end']);	// no update necessary
-				unset($recur_event['alarm']);	// unsetting alarms too, as they cant be updated without start!
-				$this->bo->update($recur_event,true);	// no conflict check here
+				unset($recur_event['start']); unset($recur_event['end']); // no update necessary
+				unset($recur_event['alarm']); // unsetting alarms too, as they cant be updated without start!
+				$this->bo->update($recur_event, true); // no conflict check here
 
 				// Sending null will trigger a removal of the original for that date
 				Api\Json\Response::get()->generic('data', array('uid' => 'calendar::'.$_eventId, 'data' => null));
 
 				unset($recur_event);
-				unset($event['edit_single']);			// if we further edit it, it's just a single event
+				unset($event['edit_single']); // if we further edit it, it's just a single event
 				unset($preserv['edit_single']);
 			}
 		}
-		foreach($remove as $participant)
+		foreach ($remove as $participant)
 		{
 			unset($event['participants'][$participant]);
 		}
-		foreach($invite as $participant)
+		foreach ($invite as $participant)
 		{
 			$event['participants'][$participant] = 'U';
 		}
 		$message = null;
-		$conflicts=$this->bo->update($event,false, true, false, true, $message);
+		$conflicts = $this->bo->update($event, false, true, false, true, $message);
 
 		$response = Api\Json\Response::get();
 
@@ -3219,8 +3217,8 @@ 
 		{
 			// Save it anyway, was done with explicit user interaction,
 			// and if we don't we lose the invite
-			$this->bo->update($event,true);	// no conflict check here
-			$this->update_client($event['id'],$d);
+			$this->bo->update($event, true); // no conflict check here
+			$this->update_client($event['id'], $d);
 			$response->call(
 				'egw_openWindowCentered2',
 				$GLOBALS['egw_info']['server']['webserver_url'].'/index.php?menuaction=calendar.calendar_uiforms.edit
@@ -3229,22 +3227,22 @@ 
 					.'&end='.$event['end']
 					.'&non_interactive=true'
 					.'&cancel_needs_refresh=true',
-				'',750,410);
+				'', 750, 410);
 		}
 		else if ($message)
 		{
-			$response->call('egw.message',  implode('<br />', $message));
+			$response->call('egw.message', implode('<br />', $message));
 		}
-		if($conflicts)
+		if ($conflicts)
 		{
-			$this->update_client($event['id'],$d);
-			if(is_int($conflicts))
+			$this->update_client($event['id'], $d);
+			if (is_int($conflicts))
 			{
 				$event['id'] = $conflicts;
 			}
-			if($event['id'])
+			if ($event['id'])
 			{
-				$response->call('egw.refresh', '','calendar',$event['id'],'edit');
+				$response->call('egw.refresh', '', 'calendar', $event['id'], 'edit');
 			}
 		}
 	}
@@ -3255,13 +3253,13 @@ 
 	 * @param array $mailContent = null mail content
 	 * @return  array
 	 */
-	function mail_import(array $mailContent=null)
+	function mail_import(array $mailContent = null)
 	{
 		// It would get called from compose as a popup with egw_data
 		if (!is_array($mailContent) && ($_GET['egw_data']))
 		{
 			// get raw mail data
-			Link::get_data ($_GET['egw_data']);
+			Link::get_data($_GET['egw_data']);
 			return false;
 		}
 
@@ -3271,7 +3269,7 @@ 
 			$AB = new Api\Contacts();
 			$accounts = array(0 => $GLOBALS['egw_info']['user']['account_id']);
 
-			$participants[0] = array (
+			$participants[0] = array(
 				'uid' => $GLOBALS['egw_info']['user']['account_id'],
 				'delete_id' => $GLOBALS['egw_info']['user']['account_id'],
 				'status' => 'A',
@@ -3279,23 +3277,23 @@ 
 				'app' => 'User',
 				'role' => 'REQ-PARTICIPANT'
 			);
-			foreach($mailContent['addresses'] as $address)
+			foreach ($mailContent['addresses'] as $address)
 			{
 				// Get available contacts from the email
 				$contacts = $AB->search(array(
 						'email' => $address['email'],
 						'email_home' => $address['email']
-					),'contact_id,contact_email,contact_email_home,egw_addressbook.account_id as account_id','','','',false,'OR',false,array('owner' => 0),'',false);
+					), 'contact_id,contact_email,contact_email_home,egw_addressbook.account_id as account_id', '', '', '', false, 'OR', false, array('owner' => 0), '', false);
 				if (is_array($contacts))
 				{
-					foreach($contacts as $account)
+					foreach ($contacts as $account)
 					{
 						$accounts[] = $account['account_id'];
 					}
 				}
 				else
 				{
-					$participants []= array (
+					$participants [] = array(
 						'app' => 'email',
 						'uid' => 'e'.$address['email'],
 						'status' => 'U',
@@ -3303,7 +3301,7 @@ 
 					);
 				}
 			}
-			$participants = array_merge($participants , array(
+			$participants = array_merge($participants, array(
 				"participant" => $accounts,
 				"role" => "REQ-PARTICIPANT",
 				"add" => "pressed"
@@ -3327,14 +3325,14 @@ 
 			{
 				foreach ($mailContent['attachments'] as $attachment)
 				{
-					if($attachment['egw_data'])
+					if ($attachment['egw_data'])
 					{
-						Link::link('calendar',$event['link_to']['to_id'],Link::DATA_APPNAME,  $attachment);
+						Link::link('calendar', $event['link_to']['to_id'], Link::DATA_APPNAME, $attachment);
 					}
-					else if(is_readable($attachment['tmp_name']) ||
+					else if (is_readable($attachment['tmp_name']) ||
 						(Vfs::is_readable($attachment['tmp_name']) && parse_url($attachment['tmp_name'], PHP_URL_SCHEME) === 'vfs'))
 					{
-						Link::link('calendar',$event['link_to']['to_id'],'file',  $attachment);
+						Link::link('calendar', $event['link_to']['to_id'], 'file', $attachment);
 					}
 				}
 			}