How to use custom resolver implementation

[wheelerlaw]

I am trying to figure out how to use an existing resolver implementation. But when I run go run github.com/99designs/gqlgen generate, it overwrites the implementation in the schema.resolvers.go file.

I am using this package to add pagination to my GraphQL server.

I add the following to my gqlgen.yaml file:

models:
  PageArgs:
    model: github.com/nrfta/go-paging.PageArgs

  PageInfo:
    model: github.com/nrfta/go-paging.PageInfo

This is what is inside my resolver.go:

package graph

//go:generate go run github.com/99designs/gqlgen generate

import (
	"github.com/nrfta/go-paging"
	"github.com/gobuffalo/pop/v6"
)

// This file will not be regenerated automatically.
//
// It serves as dependency injection for your app, add any dependencies you require here.

type Resolver struct {
	db *pop.Connection
}

func (r *Resolver) PageInfo() paging.PageInfoResolver {
	return paging.NewPageInfoResolver()
}

When I run go run github.com/99designs/gqlgen generate, I would expect my schema.resolvers.go to not contain the auto-generated pageInfoResolver struct PageInfo() method, since I have already provided an implementation. However, they get generated, and I get the following error:

validation failed: packages.Load: /home/wheeler/Repositories/.../graph/schema.resolvers.go:70:20: method Resolver.PageInfo already declared at /home/wheeler/Repositories/.../graph/resolver.go:18:20

exit status 1
graph/resolver.go:3: running "go": exit status 1

How do I get gqlgen to stop auto-generating the methods that return the sub-resolvers if the methods are already defined?