add(new Binary([ 'id', 'timeperiod_id', 'override_id', 'environment_id' ])); } public function createRelations(Relations $relations) { $relations->belongsTo('environment', Environment::class); $relations->belongsTo('timeperiod', Timeperiod::class); // TODO: `timeperiod` cannot be used again, find a better name $relations->belongsTo('timeperiod', Timeperiod::class) ->setCandidateKey('override_id'); } }