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PhabricatorQuery.php
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Mon, Mar 17, 21:49

PhabricatorQuery.php
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<?php
/**
* @task format Formatting Query Clauses
*/
abstract class PhabricatorQuery extends Phobject {
abstract public function execute();
/* -( Formatting Query Clauses )------------------------------------------- */
/**
* @task format
*/
protected function formatWhereClause(array $parts) {
$parts = $this->flattenSubclause($parts);
if (!$parts) {
return '';
}
return 'WHERE '.$this->formatWhereSubclause($parts);
}
/**
* @task format
*/
protected function formatWhereSubclause(array $parts) {
$parts = $this->flattenSubclause($parts);
if (!$parts) {
return null;
}
return '('.implode(') AND (', $parts).')';
}
/**
* @task format
*/
protected function formatSelectClause(array $parts) {
$parts = $this->flattenSubclause($parts);
if (!$parts) {
throw new Exception(pht('Can not build empty select clause!'));
}
return 'SELECT '.$this->formatSelectSubclause($parts);
}
/**
* @task format
*/
protected function formatSelectSubclause(array $parts) {
$parts = $this->flattenSubclause($parts);
if (!$parts) {
return null;
}
return implode(', ', $parts);
}
/**
* @task format
*/
protected function formatJoinClause(array $parts) {
$parts = $this->flattenSubclause($parts);
if (!$parts) {
return '';
}
return implode(' ', $parts);
}
/**
* @task format
*/
protected function formatHavingClause(array $parts) {
$parts = $this->flattenSubclause($parts);
if (!$parts) {
return '';
}
return 'HAVING '.$this->formatHavingSubclause($parts);
}
/**
* @task format
*/
protected function formatHavingSubclause(array $parts) {
$parts = $this->flattenSubclause($parts);
if (!$parts) {
return null;
}
return '('.implode(') AND (', $parts).')';
}
/**
* @task format
*/
private function flattenSubclause(array $parts) {
$result = array();
foreach ($parts as $part) {
if (is_array($part)) {
foreach ($this->flattenSubclause($part) as $subpart) {
$result[] = $subpart;
}
} else if (strlen($part)) {
$result[] = $part;
}
}
return $result;
}
}

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