forked from extern/egroupware
improved performance of ctag generation (using only a single and quick DB query, compared to multiple queries plus one for each recurring event
This commit is contained in:
Ralf Becker
parent
7ccc7adadf
commit
bef80c1f7f
@ -301,62 +301,22 @@ class calendar_bo
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}
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/**
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* Searches / lists calendar entries, including repeating ones
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* Resolve users to add memberships for users and members for groups
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*
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* @param array $params array with the following keys
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* start date startdate of the search/list, defaults to today
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* end date enddate of the search/list, defaults to start + one day
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* users int|array integer user-id or array of user-id's to use, defaults to the current user
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* cat_id int|array category-id or array of cat-id's (incl. all sub-categories), default 0 = all
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* filter string all (not rejected), accepted, unknown, tentative, rejected or hideprivate
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* query string pattern so search for, if unset or empty all matching entries are returned (no search)
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* Please Note: a search never returns repeating events more then once AND does not honor start+end date !!!
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* daywise boolean on True it returns an array with YYYYMMDD strings as keys and an array with events
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* (events spanning multiple days are returned each day again (!)) otherwise it returns one array with
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* the events (default), not honored in a search ==> always returns an array of events!
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* date_format string date-formats: 'ts'=timestamp (default), 'array'=array, or string with format for date
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* offset boolean|int false (default) to return all entries or integer offset to return only a limited result
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* enum_recuring boolean if true or not set (default) or daywise is set, each recurence of a recuring events is returned,
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* otherwise the original recuring event (with the first start- + enddate) is returned
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* num_rows int number of entries to return, default or if 0, max_entries from the prefs
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* order column-names plus optional DESC|ASC separted by comma
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* ignore_acl if set and true no check_perms for a general EGW_ACL_READ grants is performed
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* enum_groups boolean if set and true, group-members will be added as participants with status 'G'
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* cols string|array columns to select, if set an iterator will be returned
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* append string to append to the query, eg. GROUP BY
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* cfs array if set, query given custom fields or all for empty array, none are returned, if not set (default)
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* @param string $sql_filter=null sql to be and'ed into query (fully quoted), default none
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* @return iterator|array|boolean array of events or array with YYYYMMDD strings / array of events pairs (depending on $daywise param)
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* or false if there are no read-grants from _any_ of the requested users or iterator/recordset if cols are given
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* @param int|array $_users
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* @param boolean $no_enum_groups=true
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* @param boolean $ignore_acl=false
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* @return array of user-ids
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*/
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function &search($params,$sql_filter=null)
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private function resolve_users($_users, $no_enum_groups=true, $ignore_acl=false)
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{
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$params_in = $params;
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$params['sql_filter'] = $sql_filter; // dont allow to set it via UI or xmlrpc
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// check if any resource wants to hook into
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foreach($this->resources as $app => $data)
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if (!is_array($_users))
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{
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if (isset($data['search_filter']))
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{
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$params = ExecMethod($data['search_filter'],$params);
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}
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}
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if (!isset($params['users']) || !$params['users'] ||
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count($params['users']) == 1 && isset($params['users'][0]) && !$params['users'][0]) // null or '' casted to an array
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{
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// for a search use all account you have read grants from
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$params['users'] = $params['query'] ? array_keys($this->grants) : $this->user;
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}
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if (!is_array($params['users']))
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{
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$params['users'] = $params['users'] ? array($params['users']) : array();
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$_users = $_users ? array($_users) : array();
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}
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// only query calendars of users, we have READ-grants from
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$users = array();
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foreach($params['users'] as $user)
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foreach($_users as $user)
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{
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$user = trim($user);
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if ($params['ignore_acl'] || $this->check_perms(EGW_ACL_READ|EGW_ACL_READ_FOR_PARTICIPANTS|EGW_ACL_FREEBUSY,0,$user))
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@ -407,6 +367,62 @@ class calendar_bo
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}
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}
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}
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return $users;
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}
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/**
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* Searches / lists calendar entries, including repeating ones
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*
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* @param array $params array with the following keys
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* start date startdate of the search/list, defaults to today
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* end date enddate of the search/list, defaults to start + one day
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* users int|array integer user-id or array of user-id's to use, defaults to the current user
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* cat_id int|array category-id or array of cat-id's (incl. all sub-categories), default 0 = all
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* filter string all (not rejected), accepted, unknown, tentative, rejected or hideprivate
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* query string pattern so search for, if unset or empty all matching entries are returned (no search)
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* Please Note: a search never returns repeating events more then once AND does not honor start+end date !!!
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* daywise boolean on True it returns an array with YYYYMMDD strings as keys and an array with events
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* (events spanning multiple days are returned each day again (!)) otherwise it returns one array with
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* the events (default), not honored in a search ==> always returns an array of events!
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* date_format string date-formats: 'ts'=timestamp (default), 'array'=array, or string with format for date
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* offset boolean|int false (default) to return all entries or integer offset to return only a limited result
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* enum_recuring boolean if true or not set (default) or daywise is set, each recurence of a recuring events is returned,
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* otherwise the original recuring event (with the first start- + enddate) is returned
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* num_rows int number of entries to return, default or if 0, max_entries from the prefs
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* order column-names plus optional DESC|ASC separted by comma
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* ignore_acl if set and true no check_perms for a general EGW_ACL_READ grants is performed
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* enum_groups boolean if set and true, group-members will be added as participants with status 'G'
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* cols string|array columns to select, if set an iterator will be returned
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* append string to append to the query, eg. GROUP BY
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* cfs array if set, query given custom fields or all for empty array, none are returned, if not set (default)
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* @param string $sql_filter=null sql to be and'ed into query (fully quoted), default none
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* @return iterator|array|boolean array of events or array with YYYYMMDD strings / array of events pairs (depending on $daywise param)
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* or false if there are no read-grants from _any_ of the requested users or iterator/recordset if cols are given
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*/
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function &search($params,$sql_filter=null)
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{
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$params_in = $params;
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$params['sql_filter'] = $sql_filter; // dont allow to set it via UI or xmlrpc
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// check if any resource wants to hook into
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foreach($this->resources as $app => $data)
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{
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if (isset($data['search_filter']))
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{
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$params = ExecMethod($data['search_filter'],$params);
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}
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}
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if (!isset($params['users']) || !$params['users'] ||
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count($params['users']) == 1 && isset($params['users'][0]) && !$params['users'][0]) // null or '' casted to an array
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{
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// for a search use all account you have read grants from
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$params['users'] = $params['query'] ? array_keys($this->grants) : $this->user;
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}
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// resolve users to add memberships for users and members for groups
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$users = $this->resolve_users($params['users'], $params['filter'] == 'no-enum-groups', $params['ignore_acl']);
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// replace (by so not understood filter 'no-enum-groups' with 'default' filter
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if ($params['filter'] == 'no-enum-groups')
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{
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@ -1880,6 +1896,7 @@ class calendar_bo
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'daywise' => false,
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'enum_recuring' => false,
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'date_format' => 'server',
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'no_total' => true,
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));
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foreach($events as $k => &$recurrence)
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{
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@ -1903,29 +1920,13 @@ class calendar_bo
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*/
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public function get_ctag($user,$filter='owner')
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{
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$params = array(
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'users' => $user,
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'start' => $this->now - 100*24*3600, // default one month back -30 breaks all sync recurrences
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'end' => $this->now + 365*24*3600, // default one year into the future +365
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'enum_recuring' => false,
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'daywise' => false,
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'date_format' => 'server',
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'cols' => array('egw_cal.cal_id', 'cal_start', 'cal_modified'),
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'filter' => $filter,
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);
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if ($this->debug > 1) $startime = microtime(true);
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$ctag = 0;
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if (($events =& $this->search($params)))
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{
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foreach ($events as $event)
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{
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$modified = max($this->so->max_user_modified($event['cal_id']), $event['cal_modified']);
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if ($ctag < $modified) $ctag = $modified;
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}
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}
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if ($this->debug > 1) error_log(__METHOD__. "($user, '$filter') params=".array2string($params)." --> $ctag = ".date('Y-m-d H:i:s',$ctag));
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// resolve users to add memberships for users and members for groups
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$users = $this->resolve_users($user);
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$ctag = $this->so->get_ctag($users, $filter == 'owner');
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if ($this->debug > 1) error_log(__METHOD__. "($user, '$filter') = $ctag = ".date('Y-m-d H:i:s',$ctag)." took ".(microtime(true)-$startime)." secs");
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return $ctag;
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}
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}
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@ -258,18 +258,72 @@ class calendar_so
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* This includes ALL recurences of an event series
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*
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* @param int|array $ids one or multiple cal_id's
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* @param booelan $return_maximum=false if true return only the maximum, even for multiple ids
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* @return int|array (array of) modification timestamp(s)
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*/
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function max_user_modified($ids)
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function max_user_modified($ids, $return_maximum=false)
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{
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foreach($this->db->select($this->user_table,'cal_id,MAX(cal_user_modified) AS user_etag',array(
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'cal_id' => $ids,
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),__LINE__,__FILE__,false,'GROUP BY cal_id','calendar') as $row)
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if (!is_array($ids) || count($ids) == 1) $return_maximum = true;
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if ($return_maximum)
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{
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$etags[$row['cal_id']] = $this->db->from_timestamp($row['user_etag']);
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if (($etags = $this->db->select($this->user_table,'MAX(cal_user_modified)',array(
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'cal_id' => $ids,
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),__LINE__,__FILE__,false,'','calendar')->fetchColumn()))
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{
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$etags = $this->db->from_timestamp($etags);
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}
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}
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//echo "<p>".__METHOD__.'('.array2string($ids).') = '.array2string($etags)."</p>\n";
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return is_array($ids) ? $etags : $etags[$ids];
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else
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{
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$etags = array();
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foreach($this->db->select($this->user_table,'cal_id,MAX(cal_user_modified) AS user_etag',array(
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'cal_id' => $ids,
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),__LINE__,__FILE__,false,'GROUP BY cal_id','calendar') as $row)
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{
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$etags[$row['cal_id']] = $this->db->from_timestamp($row['user_etag']);
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}
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}
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//echo "<p>".__METHOD__.'('.array2string($ids).','.array($return_maximum).') = '.array2string($etags)."</p>\n";
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error_log(__METHOD__.'('.array2string($ids).','.array2string($return_maximum).') = '.array2string($etags));
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return $etags;
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}
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/**
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* Get maximum modification time of events for given participants and optional owned by them
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*
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* This includes ALL recurences of an event series
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*
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* @param int|array $users one or mulitple calendar users
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* @param booelan $owner_too=false if true return also events owned by given users
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* @return int maximum modification timestamp
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*/
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function get_ctag($users, $owner_too=false)
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{
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$where = array(
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'cal_user_type' => 'u',
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'cal_user_id' => $users,
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);
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if ($owner_too)
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{
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// owner can only by users, no groups
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foreach($users as $key => $user)
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{
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if ($user < 0) unset($users[$key]);
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}
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$where = $this->db->expression($this->user_table, '(', $where, ' OR ').
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$this->db->expression($this->cal_table, array(
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'cal_owner' => $users,
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),')');
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}
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if (($data = $this->db->select($this->user_table,array(
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'MAX(cal_user_modified) AS max_user_modified',
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'MAX(cal_modified) AS max_modified',
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),$where,__LINE__,__FILE__,false,'','calendar',0,'JOIN egw_cal ON egw_cal.cal_id=egw_cal_user.cal_id')->fetch()))
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{
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$data = max($this->db->from_timestamp($data['max_user_modified']),$data['max_modified']);
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}
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return $data;
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}
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/**
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