protected function buildJoins($val, $inner = FALSE)
{
$driver = $this->selection->getConnection()->getSupplementalDriver();
$reflection = $this->selection->getConnection()->getDatabaseReflection();
$joins = array();
preg_match_all('~\\b([a-z][\\w.:]*[.:])([a-z]\\w*|\\*)(\\s+IS\\b|\\s*<=>)?~i', $val, $matches);
foreach ($matches[1] as $names) {
$parent = $this->selection->getName();
if ($names !== "{$parent}.") {
// case-sensitive
preg_match_all('~\\b([a-z][\\w]*|\\*)([.:])~i', $names, $matches, PREG_SET_ORDER);
foreach ($matches as $match) {
list(, $name, $delimiter) = $match;
if ($delimiter === ':') {
list($table, $primary) = $reflection->getHasManyReference($parent, $name);
$column = $reflection->getPrimary($parent);
} else {
list($table, $column) = $reflection->getBelongsToReference($parent, $name);
$primary = $reflection->getPrimary($table);
}
$joins[$name] = ' ' . (!isset($joins[$name]) && $inner && !isset($match[3]) ? 'INNER' : 'LEFT') . ' JOIN ' . $driver->delimite($table) . ($table !== $name ? ' AS ' . $driver->delimite($name) : '') . ' ON ' . $driver->delimite($parent) . '.' . $driver->delimite($column) . ' = ' . $driver->delimite($name) . '.' . $driver->delimite($primary);
$parent = $name;
}
}
}
return $joins;
}
/**
* @internal
*/
public function access($key, $cache = TRUE)
{
if ($this->table->getConnection()->getCache() && !isset($this->modified[$key]) && $this->table->access($key, $cache)) {
$id = isset($this->data[$this->table->getPrimary()]) ? $this->data[$this->table->getPrimary()] : $this->data;
$this->data = $this->table[$id]->data;
}
}
