public function compile($db = NULL)
{
if ($this->context_model() and $meta = Jam::meta(Jam_Query_Builder::aliased_model($this->context_model()))) {
$db = Database::instance($meta->db());
}
$original_on = $this->_on;
$original_using = $this->_using;
$original_table = $this->_table;
if (!empty($this->_on)) {
foreach ($this->_on as &$condition) {
$condition[0] = Jam_Query_Builder::resolve_attribute_name($condition[0], $this->model() ? $this->model() : $this->_table);
$condition[2] = Jam_Query_Builder::resolve_attribute_name($condition[2], $this->context_model());
}
}
$this->_table = Jam_Query_Builder::resolve_table_alias($this->_table);
if (!empty($this->_using)) {
foreach ($this->_using as &$column) {
$column = Jam_Query_Builder::resolve_attribute_name($column, $this->meta());
}
}
$additional_joins = '';
foreach ($this->_joins as $join) {
$additional_joins .= ' ' . $join->compile($db);
}
$compiled = parent::compile($db) . $additional_joins;
$this->_on = $original_on;
$this->_using = $original_using;
$this->_table = $original_table;
return $compiled;
}
