public function join($query, $from_alias, $to_alias, $type = 'LEFT')
{
$prefix = $from_alias . '__' . $to_alias . '__';
// Loop on target entities :
foreach ($this->joins as $trg_entity_name => $data1) {
// Get entity object and build alias :
$trg_entity = Glue_Entity::get($trg_entity_name);
$trg_alias = $trg_entity_name === $this->to ? $to_alias : $prefix . $trg_entity_name;
// Loop on source entities :
$conds = array();
foreach ($data1 as $src_entity_name => $data2) {
// Get entity object and build alias :
$src_entity = Glue_Entity::get($src_entity_name);
$src_alias = $src_entity_name === $this->from ? $from_alias : $prefix . $src_entity_name;
// Loop on source entity fields :
foreach ($data2 as $trg_field => $src_field) {
$conds[] = array($trg_field, '=', $src_entity->query_field_expr($src_alias, $src_field));
}
}
// Join target entity :
$trg_entity->query_join($query, $trg_alias, $type);
foreach ($conds as $cond) {
list($field, $op, $expr) = $cond;
$query->on($trg_entity->query_field_expr($trg_alias, $field), $op, $expr);
}
}
}
public static function entity($entity_name)
{
return Glue_Entity::get($entity_name);
}