Function trips

final/client/src/containers/action-button.tsx:46–50

(existingTrips: Reference[], { readField })

          }),
          fields: {
            trips(existingTrips: Reference[], { readField }) {
              return existingTrips.filter(
                tripRef => readField("id", tripRef) !== launch.id
              );
            }
          }
        });
      }