/**
* If no title column has been set on this OptionGroups object directly,
* we attempt to get it from the OptionPairs object, if present. This
* allows a user to set a custom title column on OptionPairs and have it
* automatically take effect on OptionGroups as well. Otherwise, we'll
* revert back to the standard auto-detection behavior.
*
* @throws TitleColumnNotDetectedException
* @param array $columns The "columns" portion of the table metadata.
* @return string
*/
protected function findTitleColumnFromMetadata(array $columns)
{
if ($this->optionPairs->hasTitleColumn()) {
return $this->optionPairs->getTitleColumn();
} else {
return parent::findTitleColumnFromMetadata($columns);
}
}
/**
* Get an OptionPairs object for this field. Allows you to easily
* fetch key-value option pairs for foreign keys.
*
* @return \Dewdrop\Fields\OptionPairs
*/
public function getOptionPairs()
{
if (null === $this->optionPairs) {
$this->optionPairs = new OptionPairs($this->table->getAdapter());
$ref = $this->getOptionPairsReference();
if ($ref) {
$this->optionPairs->setOptions(['tableName' => $ref['table'], 'valueColumn' => $ref['column']]);
}
}
return $this->optionPairs;
}
