Use sql.NullString & Co. declaring them in gqlgen.yml config file

[frederikhors]

What happened?

I'm trying to avoid pointers as my structs fields.

But gqlgen generates struct like:

type User struct {
	ID        uint64  `json:"id"`
	Nickname  string  `json:"lastname"`
	Img       *string `json:"img"`
}

with *string as you can see.

What did you expect?

I would like to use something like this in gqlgen.yml config file:

models:
  String:
    model:
      - github.com/99designs/gqlgen/graphql.String
      - github.com/99designs/gqlgen/graphql.NullString
      # or maybe also:
      - database/sql.NullString

So to have this instead:

type User struct {
	ID        uint64         `json:"id"`
	Nickname  string         `json:"lastname"`
	Img       sql.NullString `json:"img"`
}

[oiime]

I assume the issue is from https://github.com/99designs/gqlgen/blob/master/plugin/modelgen/models.go:

if isStruct(typ) && (fieldDef.Kind == ast.Object || fieldDef.Kind == ast.InputObject) {
	typ = types.NewPointer(typ)
}

which seems to force it into a pointer, guess it could be solved by writing a plugin that checks the type to decide, but this definitely should be configurable or at least denotes by the type

[JamesArthurHolland]

Did anyone find a solution to this?

[numberinho]

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