$this->db->join('p_approval_izin','p_approval_izin.id_cabang=data_karyawan.id_cabang AND p_approval_izin.level_user=master_jabatan.level_user');
$this->db->join('p_approval_izin','p_approval_izin.id_cabang=data_karyawan.id_cabang AND p_approval_izin.level_user=master_jabatan.level_user','LEFT');