/**
* getForeignClass
*
* tries to return the class that should be loaded as a foreign object
*
* @param string $field
* @throws Exception if field is not a foreign key into the table
* @return string a valid class name
*/
public function getForeignClass($field)
{
if ($this->isForeignKey($field)) {
if (isset($this->_foreign_keys[$field]['alias'])) {
if (isset($this->_foreign_keys[$field]['class_from_field'])) {
return $this->getForeignClassFromField($this->_foreign_keys[$field]['class_from_field']);
} else {
if (MormConf::isInConf($this->_foreign_keys[$field]['alias'])) {
$table_name = $this->_foreign_keys[$field]['alias'];
} else {
$table_name = $this->_foreign_keys[$field]['table'];
}
}
} else {
$table_name = $this->_foreign_keys[$field]['table'];
}
return MormConf::generateMormClass($table_name);
} else {
throw new Exception($field . ' is not a foreign key in table ' . $this->_table);
}
}
/**
* set_join
*
* TODO take $type in account to define if join is RIGHT, LEFT, INNER, OUTER etc.
*
* @param mixed $table
* @param mixed $on
* @param string $type
* @return void
*/
public function set_join($table_or_alias, $on = null, $type = 'LEFT')
{
$table = $this->getJoinableTable($table_or_alias);
if (!$this->is_used_table($table)) {
$table = MormConf::isInConf($table_or_alias) ? $this->add_table($table_or_alias) : $this->add_table($table);
$this->join_tables[] = $table;
}
if (!is_null($on)) {
$tables = array_keys($on);
$this->joins[] = array(array($tables[0] => $tables[1]), $on);
} else {
$key = $this->base_models[$this->base_table]->getForeignKeyFrom($table_or_alias);
try {
$ft_key = $this->base_models[$this->base_table]->getForeignTableKey($key);
} catch (Exception $e) {
if ($this->base_models[$this->base_table]->isForeignUsingTable($table)) {
$ft_key = $this->base_models[$this->base_table]->getForeignMormonsUsingKey($table);
} else {
$ft_key = $this->base_models[$this->base_table]->getForeignMormonsKey($table);
}
}
$this->joins[] = array(array($this->base_table => $table), array($this->base_table => $key, $table => $ft_key));
}
//@todo put executed tu false only when join has changed
$this->_executed = false;
// switch($type)
// {
// case 'LEFT':
// break;
// case 'RIGHT':
// break;
// default:
// throw new Exception("The join type ".$type." does not exist or is not yet supported by Mormons");
// break;
// }
}
