Working with Relationships
Accessing Related Models
Related models are available on the model directly using the relationship name. They are easily differentiated by their CamelCase naming conventions:
$group = $member->MemberGroup;Setting Relationships
To set a relationship, simply assign the model or collection that you want to relate, and then save() to commit the change:
$member->MemberGroup = ee('Model')->get('MemberGroup', 1)->first();
$member->save();Adding Related Models
To add additional models to a HasMany or HasAndBelongsToMany relationship, simply use PHP’s array syntax, or call add() with a model to add:
$member_group[] = $member;
$member_group->add($member);Removing Related Models
To unset a relationship, simply assign NULL:
$member->MemberGroup = NULL; Caution: Unsetting a relationship may result in the deletion of the child, where it would otherwise be orphaned. This can be prevented by establishing a new relationship before calling save().
To remove a related model from a collection, call remove() with the related model or its primary key value:
$member_group->remove($member);
$member_group->remove(5); // remove member_id 5