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PhabricatorCalendarEventQuery.php
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Sun, Apr 13, 16:06

PhabricatorCalendarEventQuery.php
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<?php
final class PhabricatorCalendarEventQuery
extends PhabricatorCursorPagedPolicyAwareQuery {
private $ids;
private $phids;
private $rangeBegin;
private $rangeEnd;
private $inviteePHIDs;
private $creatorPHIDs;
private $isCancelled;
private $eventsWithNoParent;
private $instanceSequencePairs;
private $generateGhosts = false;
public function setGenerateGhosts($generate_ghosts) {
$this->generateGhosts = $generate_ghosts;
return $this;
}
public function withIDs(array $ids) {
$this->ids = $ids;
return $this;
}
public function withPHIDs(array $phids) {
$this->phids = $phids;
return $this;
}
public function withDateRange($begin, $end) {
$this->rangeBegin = $begin;
$this->rangeEnd = $end;
return $this;
}
public function withInvitedPHIDs(array $phids) {
$this->inviteePHIDs = $phids;
return $this;
}
public function withCreatorPHIDs(array $phids) {
$this->creatorPHIDs = $phids;
return $this;
}
public function withIsCancelled($is_cancelled) {
$this->isCancelled = $is_cancelled;
return $this;
}
public function withEventsWithNoParent($events_with_no_parent) {
$this->eventsWithNoParent = $events_with_no_parent;
return $this;
}
public function withInstanceSequencePairs(array $pairs) {
$this->instanceSequencePairs = $pairs;
return $this;
}
protected function getDefaultOrderVector() {
return array('start', 'id');
}
public function getOrderableColumns() {
return array(
'start' => array(
'table' => $this->getPrimaryTableAlias(),
'column' => 'dateFrom',
'reverse' => true,
'type' => 'int',
'unique' => false,
),
) + parent::getOrderableColumns();
}
protected function getPagingValueMap($cursor, array $keys) {
$event = $this->loadCursorObject($cursor);
return array(
'start' => $event->getDateFrom(),
'id' => $event->getID(),
);
}
protected function loadPage() {
$table = new PhabricatorCalendarEvent();
$conn_r = $table->establishConnection('r');
$viewer = $this->getViewer();
$data = queryfx_all(
$conn_r,
'SELECT event.* FROM %T event %Q %Q %Q %Q %Q',
$table->getTableName(),
$this->buildJoinClause($conn_r),
$this->buildWhereClause($conn_r),
$this->buildGroupClause($conn_r),
$this->buildOrderClause($conn_r),
$this->buildLimitClause($conn_r));
$events = $table->loadAllFromArray($data);
foreach ($events as $event) {
$event->applyViewerTimezone($this->getViewer());
}
if (!$this->generateGhosts) {
return $events;
}
$enforced_end = null;
foreach ($events as $key => $event) {
$sequence_start = 0;
$sequence_end = null;
$duration = $event->getDateTo() - $event->getDateFrom();
$end = null;
$instance_of = $event->getInstanceOfEventPHID();
if ($instance_of == null && $this->isCancelled !== null) {
if ($event->getIsCancelled() != $this->isCancelled) {
unset($events[$key]);
continue;
}
}
if ($event->getIsRecurring() && $instance_of == null) {
$frequency = $event->getFrequencyUnit();
$modify_key = '+1 '.$frequency;
if ($this->rangeBegin && $this->rangeBegin > $event->getDateFrom()) {
$max_date = $this->rangeBegin - $duration;
$date = $event->getDateFrom();
$datetime = PhabricatorTime::getDateTimeFromEpoch($date, $viewer);
while ($date < $max_date) {
// TODO: optimize this to not loop through all off-screen events
$sequence_start++;
$datetime = PhabricatorTime::getDateTimeFromEpoch($date, $viewer);
$date = $datetime->modify($modify_key)->format('U');
}
$start = $this->rangeBegin;
} else {
$start = $event->getDateFrom() - $duration;
}
$date = $start;
$datetime = PhabricatorTime::getDateTimeFromEpoch($date, $viewer);
if (($this->rangeEnd && $event->getRecurrenceEndDate()) &&
$this->rangeEnd < $event->getRecurrenceEndDate()) {
$end = $this->rangeEnd;
} else if ($event->getRecurrenceEndDate()) {
$end = $event->getRecurrenceEndDate();
} else if ($this->rangeEnd) {
$end = $this->rangeEnd;
} else if ($enforced_end) {
if ($end) {
$end = min($end, $enforced_end);
} else {
$end = $enforced_end;
}
}
if ($end) {
$sequence_end = $sequence_start;
while ($date < $end) {
$sequence_end++;
$datetime->modify($modify_key);
$date = $datetime->format('U');
if ($sequence_end > $this->getRawResultLimit() + $sequence_start) {
break;
}
}
} else {
$sequence_end = $this->getRawResultLimit() + $sequence_start;
}
$sequence_start = max(1, $sequence_start);
for ($index = $sequence_start; $index < $sequence_end; $index++) {
$events[] = $event->generateNthGhost($index, $viewer);
}
if (count($events) >= $this->getRawResultLimit()) {
$events = msort($events, 'getDateFrom');
$events = array_slice($events, 0, $this->getRawResultLimit(), true);
$enforced_end = last($events)->getDateFrom();
}
}
}
$map = array();
$instance_sequence_pairs = array();
foreach ($events as $key => $event) {
if ($event->getIsGhostEvent()) {
$index = $event->getSequenceIndex();
$instance_sequence_pairs[] = array($event->getPHID(), $index);
$map[$event->getPHID()][$index] = $key;
}
}
if (count($instance_sequence_pairs) > 0) {
$sub_query = id(new PhabricatorCalendarEventQuery())
->setViewer($viewer)
->setParentQuery($this)
->withInstanceSequencePairs($instance_sequence_pairs)
->execute();
foreach ($sub_query as $edited_ghost) {
$indexes = idx($map, $edited_ghost->getInstanceOfEventPHID());
$key = idx($indexes, $edited_ghost->getSequenceIndex());
$events[$key] = $edited_ghost;
}
$id_map = array();
foreach ($events as $key => $event) {
if ($event->getIsGhostEvent()) {
continue;
}
if (isset($id_map[$event->getID()])) {
unset($events[$key]);
} else {
$id_map[$event->getID()] = true;
}
}
}
return $events;
}
protected function buildJoinClauseParts(AphrontDatabaseConnection $conn_r) {
$parts = parent::buildJoinClauseParts($conn_r);
if ($this->inviteePHIDs !== null) {
$parts[] = qsprintf(
$conn_r,
'JOIN %T invitee ON invitee.eventPHID = event.phid
AND invitee.status != %s',
id(new PhabricatorCalendarEventInvitee())->getTableName(),
PhabricatorCalendarEventInvitee::STATUS_UNINVITED);
}
return $parts;
}
protected function buildWhereClause(AphrontDatabaseConnection $conn_r) {
$where = array();
if ($this->ids) {
$where[] = qsprintf(
$conn_r,
'event.id IN (%Ld)',
$this->ids);
}
if ($this->phids) {
$where[] = qsprintf(
$conn_r,
'event.phid IN (%Ls)',
$this->phids);
}
if ($this->rangeBegin) {
$where[] = qsprintf(
$conn_r,
'event.dateTo >= %d OR event.isRecurring = 1',
$this->rangeBegin);
}
if ($this->rangeEnd) {
$where[] = qsprintf(
$conn_r,
'event.dateFrom <= %d',
$this->rangeEnd);
}
if ($this->inviteePHIDs !== null) {
$where[] = qsprintf(
$conn_r,
'invitee.inviteePHID IN (%Ls)',
$this->inviteePHIDs);
}
if ($this->creatorPHIDs) {
$where[] = qsprintf(
$conn_r,
'event.userPHID IN (%Ls)',
$this->creatorPHIDs);
}
if ($this->isCancelled !== null) {
$where[] = qsprintf(
$conn_r,
'event.isCancelled = %d',
(int)$this->isCancelled);
}
if ($this->eventsWithNoParent == true) {
$where[] = qsprintf(
$conn_r,
'event.instanceOfEventPHID IS NULL');
}
if ($this->instanceSequencePairs !== null) {
$sql = array();
foreach ($this->instanceSequencePairs as $pair) {
$sql[] = qsprintf(
$conn_r,
'(event.instanceOfEventPHID = %s AND event.sequenceIndex = %d)',
$pair[0],
$pair[1]);
}
$where[] = qsprintf(
$conn_r,
'%Q',
implode(' OR ', $sql));
}
$where[] = $this->buildPagingClause($conn_r);
return $this->formatWhereClause($where);
}
protected function getPrimaryTableAlias() {
return 'event';
}
protected function shouldGroupQueryResultRows() {
if ($this->inviteePHIDs !== null) {
return true;
}
return parent::shouldGroupQueryResultRows();
}
protected function getApplicationSearchObjectPHIDColumn() {
return 'event.phid';
}
public function getQueryApplicationClass() {
return 'PhabricatorCalendarApplication';
}
protected function willFilterPage(array $events) {
$range_start = $this->rangeBegin;
$range_end = $this->rangeEnd;
$instance_of_event_phids = array();
$recurring_events = array();
$viewer = $this->getViewer();
foreach ($events as $key => $event) {
$event_start = $event->getDateFrom();
$event_end = $event->getDateTo();
if ($range_start && $event_end < $range_start) {
unset($events[$key]);
}
if ($range_end && $event_start > $range_end) {
unset($events[$key]);
}
}
$phids = array();
foreach ($events as $event) {
$phids[] = $event->getPHID();
$instance_of = $event->getInstanceOfEventPHID();
if ($instance_of) {
$instance_of_event_phids[] = $instance_of;
}
}
if (count($instance_of_event_phids) > 0) {
$recurring_events = id(new PhabricatorCalendarEventQuery())
->setViewer($viewer)
->withPHIDs($instance_of_event_phids)
->withEventsWithNoParent(true)
->execute();
$recurring_events = mpull($recurring_events, null, 'getPHID');
}
if ($events) {
$invitees = id(new PhabricatorCalendarEventInviteeQuery())
->setViewer($viewer)
->withEventPHIDs($phids)
->execute();
$invitees = mgroup($invitees, 'getEventPHID');
} else {
$invitees = array();
}
foreach ($events as $key => $event) {
$event_invitees = idx($invitees, $event->getPHID(), array());
$event->attachInvitees($event_invitees);
$instance_of = $event->getInstanceOfEventPHID();
if (!$instance_of) {
continue;
}
$parent = idx($recurring_events, $instance_of);
// should never get here
if (!$parent) {
unset($events[$key]);
continue;
}
$event->attachParentEvent($parent);
if ($this->isCancelled !== null) {
if ($event->getIsCancelled() != $this->isCancelled) {
unset($events[$key]);
continue;
}
}
}
$events = msort($events, 'getDateFrom');
return $events;
}
}

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