select('event_charges.*, events.event_name, events.amount AS event_amount, events.description AS event_description') ->join('events', 'events.id = event_charges.event_id', 'left'); if ($parentId) { $builder->where('event_charges.parent_id', $parentId); } if ($schoolYear) { $builder->where('event_charges.school_year', $schoolYear); } if ($semester) { $builder->where('event_charges.semester', $semester); } return $builder->findAll(); } }