Method FirstID

ent/node_query.go:160–170

FirstID returns the first Node ID from the query. Returns a *NotFoundError when no Node ID was found.

(ctx context.Context)

// FirstID returns the first Node ID from the query.
// Returns a *NotFoundError when no Node ID was found.
func (nq *NodeQuery) FirstID(ctx context.Context) (id string, err error) {
	var ids []string
	if ids, err = nq.Limit(1).IDs(setContextOp(ctx, nq.ctx, ent.OpQueryFirstID)); err != nil {
		return
	}
	if len(ids) == 0 {
		err = &NotFoundError{node.Label}
		return
	}
	return ids[0], nil
}

// FirstIDX is like FirstID, but panics if an error occurs.
func (nq *NodeQuery) FirstIDX(ctx context.Context) string {