Yii2：关系名称是什么？

For the ActiveRecord, what is "the name of the relation" that is to be used in eg. link() and unlink() - where is that defined?

UPDATE: The documentation now includes an example - though it doesn't show exactly how the camel case name is converted - as the answer to this question does.

If you have got relation set like:

public function getRelationName()

Relation name is relationName.