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complete rework of participants() method. The only purpose of this method is now to add or delete participants - NOT to overwrite stati. Added a new param "add_only" to have the possibility to check for the existence of a single participant in the egw_cal_user db and add this participant if needed. This is used for e.g. group invitations where a default set of stati does no primary exist for the user.

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This commit is contained in:
Christian Binder 2009-08-17 14:45:42 +00:00
parent 1793a546e3
commit 2db8bd6c9c
1 changed files with 42 additions and 34 deletions
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76
calendar/inc/class.calendar_so.inc.php
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@ -868,16 +868,19 @@ ORDER BY cal_user_type, cal_usre_id
/**
* updates the participants of an event, taken into account the evtl. recurrences of the event(!)
* this method just adds new participants or removes not longer set participants
* this method does never overwrite existing entries (except for delete)
*
* @param int $cal_id
* @param array $participants uid => status pairs
* @param int|boolean $change_since=0 false=new entry, > 0 time from which on the repetitions should be changed, default 0=all
* @param int|boolean $change_since=0, false=new entry, 0=all, > 0 time from which on the repetitions should be changed
* @param boolean $add_only=false
* false = add AND delete participants if needed (full list of participants required in $participants)
* true = only add participants if needed, no participant will be deleted (participants to check/add required in $participants)
* @return int|boolean number of updated recurrences or false on error
*/
function participants($cal_id,$participants,$change_since=0)
function participants($cal_id,$participants,$change_since=0,$add_only=false)
{
//echo '<p>'.__METHOD__."($cal_id,".print_r($participants,true).",$change_since)</p>\n";
// remove group-invitations, they are NOT stored in the db
foreach($participants as $uid => $status)
{
@ -892,28 +895,38 @@ ORDER BY cal_user_type, cal_usre_id
{
$where[] = '(cal_recur_date=0 OR cal_recur_date >= '.(int)$change_since.')';
}
if ($change_since !== false) // existing entries only
if ($change_since !== false) // update existing entries
{
// delete not longer set participants
$deleted = array();
foreach($this->db->select($this->user_table,'DISTINCT cal_user_type,cal_user_id,cal_quantity',$where,
__LINE__,__FILE__,false,'','calendar') as $row)
$existing_entries = $this->db->select($this->user_table,'DISTINCT cal_user_type,cal_user_id',$where,__LINE__,__FILE__,false,'','calendar');
// create a full list of participants which already exist in the db
$old_participants = array();
foreach($existing_entries as $row)
{
$uid = $this->combine_user($row['cal_user_type'],$row['cal_user_id']);
if (!isset($participants[$uid])) // delete group-invitations
$old_participants[self::combine_user($row['cal_user_type'],$row['cal_user_id'])] = true;
}
// tag participants which should be deleted
if($add_only === false)
{
$deleted = array();
foreach($existing_entries as $row)
{
$deleted[$row['cal_user_type']][] = $row['cal_user_id'];
}
elseif((($row['cal_user_type'] == 'r') &&
// quantity of resource unchanged
($row['cal_quantity'] == (substr($participants[$uid],1) ? substr($participants[$uid],1) : 1))) ||
($row['cal_status'] == $participants[$uid]))
{
unset($participants[$uid]); // we don't touch them
$uid = self::combine_user($row['cal_user_type'],$row['cal_user_id']);
// delete not longer set participants
if (!isset($participants[$uid]))
{
$deleted[$row['cal_user_type']][] = $row['cal_user_id'];
}
}
}
if (count($deleted))
// only keep added participants for further steps - we do not touch existing ones
$participants = array_diff_key($participants,$old_participants);
// delete participants tagged for delete
if ($add_only === false && count($deleted))
{
$to_or = array();
$table_def = $this->db->get_table_definitions('calendar',$this->user_table);
@ -927,33 +940,23 @@ ORDER BY cal_user_type, cal_usre_id
$this->db->delete($this->user_table,$where + array('('.implode(' OR ',$to_or).')'),__LINE__,__FILE__,'calendar');
}
}
if (count($participants)) // these are ALL participants now - we exclude the existing ones later
if (count($participants)) // participants which need to be added
{
// find all recurrences, as they all need the new parts to be added
$recurrences = array();
$existing_participants = array();
if ($change_since !== false) // existing entries only
if ($change_since !== false) // existing entries
{
foreach($this->db->select($this->user_table,'DISTINCT cal_recur_date',$where,__LINE__,__FILE__,false,'','calendar') as $row)
{
$recurrences[] = $row['cal_recur_date'];
}
// existing participants must not be updated
foreach($this->db->select($this->user_table,'DISTINCT cal_user_type,cal_user_id,cal_quantity,cal_role',$where,__LINE__,__FILE__,false,'','calendar') as $row)
{
$existing_participants[self::combine_user($row['cal_user_type'],$row['cal_user_id'])] = self::combine_status('',$row['cal_quantity'],$row['cal_role']);
}
}
if (!count($recurrences)) $recurrences[] = 0; // insert the default one
// update participants
foreach($participants as $uid => $status)
{
if (isset($existing_participants[$uid]) && substr($status,1) == $existing_participants[$uid])
{
continue; // dont update existing participants, if quantity or role is not changed
}
$id = null;
self::split_user($uid,$type,$id);
self::split_status($status,$quantity,$role);
@ -1015,6 +1018,11 @@ ORDER BY cal_user_type, cal_usre_id
{
$where[] = '(cal_recur_date=0 OR cal_recur_date >= '.time().')';
}
// check if the user has any status database entries and create the default set if needed
// a status update before having the necessary entries happens on e.g. group invitations
$this->participants($cal_id,array(self::combine_user($user_type,$user_id) => 'U'),0,true);
if ($status == 'G') // remove group invitations, as we dont store them in the db
{
$this->db->delete($this->user_table,$where,__LINE__,__FILE__,'calendar');