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phorge/src/applications/fact/engine/PhabricatorFactCountEngine.php
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PhabricatorFactCountEngine.php
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<?php
/**
* Simple fact engine which counts objects.
*/
final class PhabricatorFactCountEngine extends PhabricatorFactEngine {
public function getFactSpecs(array $fact_types) {
$results = array();
foreach ($fact_types as $type) {
if (!strncmp($type, '+N:', 3)) {
if ($type == '+N:*') {
$name = pht('Total Objects');
} else {
$name = pht('Total Objects of type %s', substr($type, 3));
}
$results[] = id(new PhabricatorFactSimpleSpec($type))
->setName($name)
->setUnit(PhabricatorFactSimpleSpec::UNIT_COUNT);
}
if (!strncmp($type, 'N:', 2)) {
if ($type == 'N:*') {
$name = pht('Objects');
} else {
$name = pht('Objects of type %s', substr($type, 2));
}
$results[] = id(new PhabricatorFactSimpleSpec($type))
->setName($name)
->setUnit(PhabricatorFactSimpleSpec::UNIT_COUNT);
}
}
return $results;
}
public function shouldComputeRawFactsForObject(PhabricatorLiskDAO $object) {
return true;
}
public function computeRawFactsForObject(PhabricatorLiskDAO $object) {
$facts = array();
$phid = $object->getPHID();
$type = phid_get_type($phid);
foreach (array('N:*', 'N:'.$type) as $fact_type) {
$facts[] = id(new PhabricatorFactRaw())
->setFactType($fact_type)
->setObjectPHID($phid)
->setValueX(1)
->setEpoch($object->getDateCreated());
}
return $facts;
}
public function shouldComputeAggregateFacts() {
return true;
}
public function computeAggregateFacts() {
$table = new PhabricatorFactRaw();
$table_name = $table->getTableName();
$conn = $table->establishConnection('r');
$counts = queryfx_all(
$conn,
'SELECT factType, SUM(valueX) N FROM %T WHERE factType LIKE %>
GROUP BY factType',
$table_name,
'N:');
$facts = array();
foreach ($counts as $count) {
$facts[] = id(new PhabricatorFactAggregate())
->setFactType('+'.$count['factType'])
->setValueX($count['N']);
}
return $facts;
}
}

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