/**
* @param string $entityName
* @return CriteriaInterface
*/
public function relation($entityName)
{
if (isset($this->relations[$entityName])) {
return $this->relations[$entityName];
}
if ($this->config->isRelationManyToMany($this->entityName, $entityName)) {
list($linkTable, $mainField, $joinedField) = $this->config->getRelationManyToMany($this->entityName, $entityName);
$mainTable = $this->config->getTable($this->entityName);
$joinedTable = $this->config->getTable($entityName);
$this->select->join($linkTable, "{$linkTable}.{$mainField} = {$mainTable}.id", []);
$this->select->join($joinedTable, "{$linkTable}.{$joinedField} = {$joinedTable}.id", []);
} else {
$table = $this->config->getTable($entityName);
$this->select->join($table, $this->config->getRelationExpression($this->entityName, $entityName), []);
}
$relationCriteria = new self($entityName, $this->config, $this->select);
$this->relations[$entityName] = $relationCriteria;
return $relationCriteria;
}
public function testGetRelationExpressionBadException()
{
$this->setExpectedException(ConfigException::class);
$joinOn = $this->config->getRelationExpression('Task', 'Bad');
}
