field.gotpl

  1{{- range $object := .Objects }}{{- range $field := $object.Fields }}
  2
  3{{- if $object.Stream }}
  4	func (ec *executionContext) _{{$object.Name}}_{{$field.Name}}(ctx context.Context, field graphql.CollectedField) func() graphql.Marshaler {
  5		ctx = graphql.WithResolverContext(ctx, &graphql.ResolverContext{
  6			Field: field,
  7			Args:  nil,
  8		})
  9		{{- if $field.Args }}
 10			rawArgs := field.ArgumentMap(ec.Variables)
 11			args, err := ec.{{ $field.ArgsFunc }}(ctx,rawArgs)
 12			if err != nil {
 13				ec.Error(ctx, err)
 14				return nil
 15			}
 16		{{- end }}
 17		// FIXME: subscriptions are missing request middleware stack https://github.com/99designs/gqlgen/issues/259
 18		//          and Tracer stack
 19		rctx := ctx
 20		results, err := ec.resolvers.{{ $field.ShortInvocation }}
 21		if err != nil {
 22			ec.Error(ctx, err)
 23			return nil
 24		}
 25		return func() graphql.Marshaler {
 26			res, ok := <-results
 27			if !ok {
 28				return nil
 29			}
 30			return graphql.WriterFunc(func(w io.Writer) {
 31				w.Write([]byte{'{'})
 32				graphql.MarshalString(field.Alias).MarshalGQL(w)
 33				w.Write([]byte{':'})
 34				ec.{{ $field.TypeReference.MarshalFunc }}(ctx, field.Selections, res).MarshalGQL(w)
 35				w.Write([]byte{'}'})
 36			})
 37		}
 38	}
 39{{ else }}
 40	func (ec *executionContext) _{{$object.Name}}_{{$field.Name}}(ctx context.Context, field graphql.CollectedField{{ if not $object.Root }}, obj {{$object.Reference | ref}}{{end}}) graphql.Marshaler {
 41		ctx = ec.Tracer.StartFieldExecution(ctx, field)
 42		defer func () { ec.Tracer.EndFieldExecution(ctx) }()
 43		rctx := &graphql.ResolverContext{
 44			Object: {{$object.Name|quote}},
 45			Field: field,
 46			Args:  nil,
 47			IsMethod: {{or $field.IsMethod $field.IsResolver}},
 48		}
 49		ctx = graphql.WithResolverContext(ctx, rctx)
 50		{{- if $field.Args }}
 51			rawArgs := field.ArgumentMap(ec.Variables)
 52			args, err := ec.{{ $field.ArgsFunc }}(ctx,rawArgs)
 53			if err != nil {
 54				ec.Error(ctx, err)
 55				return graphql.Null
 56			}
 57			rctx.Args = args
 58		{{- end }}
 59		ctx = ec.Tracer.StartFieldResolverExecution(ctx, rctx)
 60		resTmp := ec.FieldMiddleware(ctx, {{if $object.Root}}nil{{else}}obj{{end}}, func(rctx context.Context) (interface{}, error) {
 61			ctx = rctx  // use context from middleware stack in children
 62			{{- if $field.IsResolver }}
 63				return ec.resolvers.{{ $field.ShortInvocation }}
 64			{{- else if $field.IsMap }}
 65				switch v := {{$field.GoReceiverName}}[{{$field.Name|quote}}].(type) {
 66				case {{$field.TypeReference.GO | ref}}:
 67					return v, nil
 68				case {{$field.TypeReference.Elem.GO | ref}}:
 69					return &v, nil
 70				case nil:
 71					return ({{$field.TypeReference.GO | ref}})(nil), nil
 72				default:
 73					return nil, fmt.Errorf("unexpected type %T for field %s", v, {{ $field.Name | quote}})
 74				}
 75			{{- else if $field.IsMethod }}
 76				{{- if $field.NoErr }}
 77					return {{$field.GoReceiverName}}.{{$field.GoFieldName}}({{ $field.CallArgs }}), nil
 78				{{- else }}
 79					return {{$field.GoReceiverName}}.{{$field.GoFieldName}}({{ $field.CallArgs }})
 80				{{- end }}
 81			{{- else if $field.IsVariable }}
 82				return {{$field.GoReceiverName}}.{{$field.GoFieldName}}, nil
 83			{{- end }}
 84		})
 85		if resTmp == nil {
 86			{{- if $field.TypeReference.GQL.NonNull }}
 87				if !ec.HasError(rctx) {
 88					ec.Errorf(ctx, "must not be null")
 89				}
 90			{{- end }}
 91			return graphql.Null
 92		}
 93		res := resTmp.({{$field.TypeReference.GO | ref}})
 94		rctx.Result = res
 95		ctx = ec.Tracer.StartFieldChildExecution(ctx)
 96		return ec.{{ $field.TypeReference.MarshalFunc }}(ctx, field.Selections, res)
 97	}
 98{{ end }}
 99
100{{- end }}{{- end}}