error while running go generate

[shimish2]

What happened?

I am getting error while running go generate

ec._fieldMiddleware undefined (type *executionContext has no field or method _fieldMiddleware)

What did you expect?

go generate should run successfully. After downgrading gqlgen to v1.14.0 & gqlparser to v2.2.0, go generate was successful.

versions

• go run github.com/99designs/gqlgen version?
  v0.17.8
• go version?
  1.18

[frederikhors]

Please create a reproduction repo.

[shimish2]

Please checkout this changes https://github.com/project-zot/zot/tree/main/pkg/extensions/search and try to run go generate from search directory.

[frederikhors]

Can you try with 0.17.9, please?

[shimish2]

tried with 0.17.9 and got same error.

[ashishb]

Same issue with the latest version and downgrading gqlgen to v0.14.0 works for me as well.

[andaaron]

Hi,
Looks like sticking to the v0.14.0 workaround is not working with Go 1.18 because it doesn't have the fix for #1961 (works with 1.17).
Do we have a long term solution?

[manisharma]

any updates here ? go run github.com/99designs/gqlgen generate still fails

$ go version
go version go1.18 darwin/arm64

[andaaron]

For our project we started from scratch with gqlgen init, replaced the schema with ours, and did some code refactoring to move our resolvers to match the new file/folder structure (before this we did not have a gqlgen.yml, or a schema.resolvers.go file - the methods in schema.resolvers.go were implemented in resolvers.go).

Currently it's working with latest gqlgen and go1.18.

[frederikhors]

This is not a problem anymore with gqlgen latest versions and Go 1.16.x, 1.17.x, 1.18x.

Maybe you can use gqlgen init from scratch in a new dir and notice the differences from your project.

Or you can re-check re-reading the config page.

Definitely this is not something wrong with latest versions, hence I'm closing this.

[andrey-bobryshev-90poe]

I found the cause of this issue. If you running generate with no gqlgen.yml file you will be getting this error because generated code will contain this piece of code:

	resTmp := ec._fieldMiddleware(ctx, obj, func(rctx context.Context) (interface{}, error) {
		ctx = rctx // use context from middleware stack in children
		return obj.ID, nil
	})

This is where it comes from

gqlgen/codegen/field.gotpl

Lines 19 to 23 in 6855b72

	{{- if $.AllDirectives.LocationDirectives "FIELD" }}
	resTmp := ec._fieldMiddleware(ctx, {{if $object.Root}}nil{{else}}obj{{end}}, func(rctx context.Context) (interface{}, error) {
	{{ template "field" $field }}
	})
	{{ else }}

Once you add gqlgen.yml everything works well.
Probably $.AllDirectives.LocationDirectives var initialises wrong without config file.