func (o *facetOpt) setParams(params *pb.SearchParams) error {
req := &pb.FacetRequest{Name: &o.name}
params.IncludeFacet = append(params.IncludeFacet, req)
if len(o.values) == 0 {
return nil
}
vtype := reflect.TypeOf(o.values[0])
reqParam := &pb.FacetRequestParam{}
for _, v := range o.values {
if reflect.TypeOf(v) != vtype {
return errors.New("values must all be Atom, or must all be Range")
}
switch v := v.(type) {
case Atom:
reqParam.ValueConstraint = append(reqParam.ValueConstraint, string(v))
case Range:
rng, err := rangeToProto(v)
if err != nil {
return fmt.Errorf("invalid range: %v", err)
}
reqParam.Range = append(reqParam.Range, rng)
default:
return fmt.Errorf("unsupported value type %T", v)
}
}
req.Params = reqParam
return nil
}
