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<?php
/**
* Elgg calendar / entity / event functions.
*
* @package Elgg
* @subpackage Core
* @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
* @author Curverider Ltd
* @copyright Curverider Ltd 2008
* @link http://elgg.org/
*/
/**
* Calendar interface for events.
*
*/
interface Noteable {
/**
* Calendar functionality.
* This function sets the time of an object on a calendar listing.
*
* @param int $hour If ommitted, now is assumed.
* @param int $minute If ommitted, now is assumed.
* @param int $second If ommitted, now is assumed.
* @param int $day If ommitted, now is assumed.
* @param int $month If ommitted, now is assumed.
* @param int $year If ommitted, now is assumed.
* @param int $duration Duration of event, remainder of the day is assumed.
*/
public function setCalendarTimeAndDuration($hour = NULL, $minute = NULL, $second = NULL, $day = NULL, $month = NULL, $year = NULL, $duration = NULL);
/**
* Return the start timestamp.
*/
public function getCalendarStartTime();
/**
* Return the end timestamp.
*/
public function getCalendarEndTime();
}
// All of these should either implemented in existing functions (with extra params) or new funcs
// get entities by time
// get entities by metadata
// get entities by relationship
// Implement get/set via metadata
/**
* Return a timestamp for the start of a given day (defaults today).
*
*/
function get_day_start($day = null, $month = null, $year = null) { return mktime(0,0,0,$month,$day,$year); }
/**
* Return a timestamp for the end of a given day (defaults today).
*
*/
function get_day_end($day = null, $month = null, $year = null) { return mktime(23,59,59,$month,$day,$year); }
/**
* Return the notable entities for a given time period.
*
* @param int $start_time The start time as a unix timestamp.
* @param int $end_time The end time as a unix timestamp.
* @param string $type The type of entity (eg "user", "object" etc)
* @param string $subtype The arbitrary subtype of the entity
* @param int $owner_guid The GUID of the owning user
* @param string $order_by The field to order by; by default, time_created desc
* @param int $limit The number of entities to return; 10 by default
* @param int $offset The indexing offset, 0 by default
* @param boolean $count Set to true to get a count rather than the entities themselves (limits and offsets don't apply in this context). Defaults to false.
* @param int $site_guid The site to get entities for. Leave as 0 (default) for the current site; -1 for all sites.
* @param int|array $container_guid The container or containers to get entities from (default: all containers).
*/
function get_notable_entities($start_time, $end_time, $type = "", $subtype = "", $owner_guid = 0, $order_by = "asc", $limit = 10, $offset = 0, $count = false, $site_guid = 0, $container_guid = null)
{
global $CONFIG;
if ($subtype === false || $subtype === null || $subtype === 0)
return false;
$start_time = (int)$start_time;
$end_time = (int)$end_time;
$order_by = sanitise_string($order_by);
$limit = (int)$limit;
$offset = (int)$offset;
$site_guid = (int) $site_guid;
if ($site_guid == 0)
$site_guid = $CONFIG->site_guid;
$where = array();
if (is_array($type)) {
$tempwhere = "";
if (sizeof($type))
foreach($type as $typekey => $subtypearray) {
foreach($subtypearray as $subtypeval) {
$typekey = sanitise_string($typekey);
if (!empty($subtypeval)) {
$subtypeval = (int) get_subtype_id($typekey, $subtypeval);
} else {
$subtypeval = 0;
}
if (!empty($tempwhere)) $tempwhere .= " or ";
$tempwhere .= "(e.type = '{$typekey}' and e.subtype = {$subtypeval})";
}
}
if (!empty($tempwhere)) $where[] = "({$tempwhere})";
} else {
$type = sanitise_string($type);
$subtype = get_subtype_id($type, $subtype);
if ($type != "")
$where[] = "e.type='$type'";
if ($subtype!=="")
$where[] = "e.subtype=$subtype";
}
if ($owner_guid != "") {
if (!is_array($owner_guid)) {
$owner_array = array($owner_guid);
$owner_guid = (int) $owner_guid;
$where[] = "e.owner_guid = '$owner_guid'";
} else if (sizeof($owner_guid) > 0) {
$owner_array = array_map('sanitise_int', $owner_guid);
// Cast every element to the owner_guid array to int
$owner_guid = implode(",",$owner_guid); //
$where[] = "e.owner_guid in ({$owner_guid})" ; //
}
if (is_null($container_guid)) {
$container_guid = $owner_array;
}
}
if ($site_guid > 0)
$where[] = "e.site_guid = {$site_guid}";
if (!is_null($container_guid)) {
if (is_array($container_guid)) {
foreach($container_guid as $key => $val) $container_guid[$key] = (int) $val;
$where[] = "e.container_guid in (" . implode(",",$container_guid) . ")";
} else {
$container_guid = (int) $container_guid;
$where[] = "e.container_guid = {$container_guid}";
}
}
// Add the calendar stuff
$cal_join = "
JOIN {$CONFIG->dbprefix}metadata cal_start on e.guid=cal_start.entity_guid
JOIN {$CONFIG->dbprefix}metastrings cal_start_name on cal_start.name_id=cal_start_name.id
JOIN {$CONFIG->dbprefix}metastrings cal_start_value on cal_start.value_id=cal_start_value.id
JOIN {$CONFIG->dbprefix}metadata cal_end on e.guid=cal_end.entity_guid
JOIN {$CONFIG->dbprefix}metastrings cal_end_name on cal_end.name_id=cal_end_name.id
JOIN {$CONFIG->dbprefix}metastrings cal_end_value on cal_end.value_id=cal_end_value.id
";
$where[] = "cal_start_name.string='calendar_start'";
$where[] = "cal_start_value.string>=$start_time";
$where[] = "cal_end_name.string='calendar_end'";
$where[] = "cal_end_value.string <= $end_time";
if (!$count) {
$query = "SELECT e.* from {$CONFIG->dbprefix}entities e $cal_join where ";
} else {
$query = "SELECT count(e.guid) as total from {$CONFIG->dbprefix}entities e $cal_join where ";
}
foreach ($where as $w)
$query .= " $w and ";
$query .= get_access_sql_suffix('e'); // Add access controls
if (!$count) {
$query .= " order by n.calendar_start $order_by";
if ($limit) $query .= " limit $offset, $limit"; // Add order and limit
$dt = get_data($query, "entity_row_to_elggstar");
return $dt;
} else {
$total = get_data_row($query);
return $total->total;
}
}
/**
* Return the notable entities for a given time period based on an item of metadata.
*
* @param int $start_time The start time as a unix timestamp.
* @param int $end_time The end time as a unix timestamp.
* @param mixed $meta_name
* @param mixed $meta_value
* @param string $entity_type The type of entity to look for, eg 'site' or 'object'
* @param string $entity_subtype The subtype of the entity.
* @param int $limit
* @param int $offset
* @param string $order_by Optional ordering.
* @param int $site_guid The site to get entities for. Leave as 0 (default) for the current site; -1 for all sites.
* @param true|false $count If set to true, returns the total number of entities rather than a list. (Default: false)
*
* @return int|array A list of entities, or a count if $count is set to true
*/
function get_notable_entities_from_metadata($start_time, $end_time, $meta_name, $meta_value = "", $entity_type = "", $entity_subtype = "", $owner_guid = 0, $limit = 10, $offset = 0, $order_by = "", $site_guid = 0, $count = false)
{
}
/**
* Return the notable entities for a given time period based on their relationship.
*
* @param int $start_time The start time as a unix timestamp.
* @param int $end_time The end time as a unix timestamp.
* @param string $relationship The relationship eg "friends_of"
* @param int $relationship_guid The guid of the entity to use query
* @param bool $inverse_relationship Reverse the normal function of the query to instead say "give me all entities for whome $relationship_guid is a $relationship of"
* @param string $type
* @param string $subtype
* @param int $owner_guid
* @param string $order_by
* @param int $limit
* @param int $offset
* @param boolean $count Set to true if you want to count the number of entities instead (default false)
* @param int $site_guid The site to get entities for. Leave as 0 (default) for the current site; -1 for all sites.
* @return array|int|false An array of entities, or the number of entities, or false on failure
*/
function get_noteable_entities_from_relationship($start_time, $end_time, $relationship, $relationship_guid, $inverse_relationship = false, $type = "", $subtype = "", $owner_guid = 0, $order_by = "", $limit = 10, $offset = 0, $count = false, $site_guid = 0)
{
$start_time = (int)$start_time;
$end_time = (int)$end_time;
}
/**
* Get all entities for today.
*
* @param string $type The type of entity (eg "user", "object" etc)
* @param string $subtype The arbitrary subtype of the entity
* @param int $owner_guid The GUID of the owning user
* @param string $order_by The field to order by; by default, time_created desc
* @param int $limit The number of entities to return; 10 by default
* @param int $offset The indexing offset, 0 by default
* @param boolean $count Set to true to get a count rather than the entities themselves (limits and offsets don't apply in this context). Defaults to false.
* @param int $site_guid The site to get entities for. Leave as 0 (default) for the current site; -1 for all sites.
* @param int|array $container_guid The container or containers to get entities from (default: all containers).
*/
function get_todays_entities($type = "", $subtype = "", $owner_guid = 0, $order_by = "", $limit = 10, $offset = 0, $count = false, $site_guid = 0, $container_guid = null)
{
$day_start = get_day_start();
$day_end = get_day_end();
return get_notable_entities($day_start, $day_end, $type, $subtype, $owner_guid, $order_by, $limit, $offset, $count, $site_guid, $container_guid);
}
/**
* Get entities for today from metadata.
*
* @param mixed $meta_name
* @param mixed $meta_value
* @param string $entity_type The type of entity to look for, eg 'site' or 'object'
* @param string $entity_subtype The subtype of the entity.
* @param int $limit
* @param int $offset
* @param string $order_by Optional ordering.
* @param int $site_guid The site to get entities for. Leave as 0 (default) for the current site; -1 for all sites.
* @param true|false $count If set to true, returns the total number of entities rather than a list. (Default: false)
*
* @return int|array A list of entities, or a count if $count is set to true
*/
function get_todays_entities_from_metadata($meta_name, $meta_value = "", $entity_type = "", $entity_subtype = "", $owner_guid = 0, $limit = 10, $offset = 0, $order_by = "", $site_guid = 0, $count = false)
{
$day_start = get_day_start();
$day_end = get_day_end();
return get_notable_entities_from_metadata($day_start, $day_end, $meta_name, $meta_value, $entity_type, $entity_subtype, $owner_guid, $limit, $offset, $order_by, $site_guid, $count);
}
/**
* Get entities for today from a relationship
*
* @param string $relationship The relationship eg "friends_of"
* @param int $relationship_guid The guid of the entity to use query
* @param bool $inverse_relationship Reverse the normal function of the query to instead say "give me all entities for whome $relationship_guid is a $relationship of"
* @param string $type
* @param string $subtype
* @param int $owner_guid
* @param string $order_by
* @param int $limit
* @param int $offset
* @param boolean $count Set to true if you want to count the number of entities instead (default false)
* @param int $site_guid The site to get entities for. Leave as 0 (default) for the current site; -1 for all sites.
* @return array|int|false An array of entities, or the number of entities, or false on failure
*/
function get_todays_entities_from_relationship($relationship, $relationship_guid, $inverse_relationship = false, $type = "", $subtype = "", $owner_guid = 0, $order_by = "", $limit = 10, $offset = 0, $count = false, $site_guid = 0)
{
$day_start = get_day_start();
$day_end = get_day_end();
return get_notable_entities_from_relationship($day_start, $day_end, $relationship, $relationship_guid, $inverse_relationship, $type, $subtype, $owner_guid, $order_by, $limit, $offset, $count, $site_guid);
}
?>
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