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phab/src/applications/fact/engine/PhabricatorTransactionFactEngine.php
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PhabricatorTransactionFactEngine.php
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<?php
abstract class PhabricatorTransactionFactEngine
extends PhabricatorFactEngine {
public function newTransactionGroupsForObject(PhabricatorLiskDAO $object) {
$viewer = $this->getViewer();
$xaction_query = PhabricatorApplicationTransactionQuery::newQueryForObject(
$object);
$xactions = $xaction_query
->setViewer($viewer)
->withObjectPHIDs(array($object->getPHID()))
->execute();
$xactions = msortv($xactions, 'newChronologicalSortVector');
return $this->groupTransactions($xactions);
}
protected function groupTransactions(array $xactions) {
// These grouping rules are generally much looser than the display grouping
// rules. As long as the same user is editing the task and they don't leave
// it alone for a particularly long time, we'll group things together.
$breaks = array();
$touch_window = phutil_units('15 minutes in seconds');
$user_type = PhabricatorPeopleUserPHIDType::TYPECONST;
$last_actor = null;
$last_epoch = null;
foreach ($xactions as $key => $xaction) {
$this_actor = $xaction->getAuthorPHID();
if (phid_get_type($this_actor) != $user_type) {
$this_actor = null;
}
if ($this_actor && $last_actor && ($this_actor != $last_actor)) {
$breaks[$key] = true;
}
// If too much time passed between changes, group them separately.
$this_epoch = $xaction->getDateCreated();
if ($last_epoch) {
if (($this_epoch - $last_epoch) > $touch_window) {
$breaks[$key] = true;
}
}
// The clock gets reset every time the same real user touches the
// task, but does not reset if an automated actor touches things.
if (!$last_actor || ($this_actor == $last_actor)) {
$last_epoch = $this_epoch;
}
if ($this_actor && ($last_actor != $this_actor)) {
$last_actor = $this_actor;
$last_epoch = $this_epoch;
}
}
$groups = array();
$group = array();
foreach ($xactions as $key => $xaction) {
if (isset($breaks[$key])) {
if ($group) {
$groups[] = $group;
$group = array();
}
}
$group[] = $xaction;
}
if ($group) {
$groups[] = $group;
}
return $groups;
}
}
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