Support for nested complex fields

[judas-christ]

I'm trying out this plugin and have a page with a complex field for sections. One of the sections is a gallery which is a complex field itself with a variable number of images in it. The setup looks like this:

WpGraphQLCrbContainer::register(
        Container::make('post_meta', 'Sections')
            ->where('post_type', '=', 'page')
            ->add_fields(
                array(
                    Field::make('complex', 'crb_sections')
                        ->set_visible_in_rest_api(true)
                        ->add_fields(
                            'gallery',
                            array(
                                Field::make('complex', 'gallery')
                                    ->add_fields(
                                        'gallery_images',
                                        array(
                                            Field::make('image', 'gallery_image')
                                        )
                                    )
                            )
                        )
                        ->add_fields(
                            'prose',
                            array(
                                Field::make('rich_text', 'content'),
                            )
                        ),
                )
            )
    );
}

and a query like this:

query NewQuery {
  page(id: 9, idType: DATABASE_ID) {
    crbSections {
      content
      gallery {
        gallery_image {
          srcSet
        }
      }
    }
  }
}

And I get this error in the response:

{
  "errors": [
    {
      "debugMessage": "array_map(): Argument #2 ($array) must be of type array, null given",
      "message": "Internal server error",
      "extensions": {
        "category": "internal"
      },
      "locations": [
        {
          "line": 3,
          "column": 5
        }
      ],
      "path": [
        "page",
        "crbSections"
      ]
    }
  ],
  "data": {
    "page": {
      "crbSections": null
    }
  },
  "extensions": {
    "debug": [],
    "queryAnalyzer": {
      "keys": "284225654371f49f4cd084d8c41b5f5d62fea543433d98f0dc5557994cce662a graphql:Query operation:NewQuery cG9zdDo5",
      "keysLength": 106,
      "keysCount": 4,
      "skippedKeys": "",
      "skippedKeysSize": 0,
      "skippedKeysCount": 0,
      "skippedTypes": []
    }
  }
}

Everything works using the REST API and with GraphQL if I remove the gallery section so I suspect the problem is with the nested complex fields. Have I done something obviously wrong? Has anyone run into something similar?

Update: so it seems the nested complex fields work as long as I do not add any other type of section. So on a page with only galleries, the query works, but if I add a prose section the query immediately fails, even if I don't include the content field in the query.

Update 2: I get the same issue when I use the built in media_gallery field type. Works fine by itself, but adding another type of field causes the error.

[matepaiva]

Thank you @judas-christ for your contribution! A new version was released: 0.0.7.

Do you think we should add something about this in the README?

[judas-christ]

Awesome @matepaiva . I'm not sure it needs a special mention now that it should work as expected.

[matepaiva]

ok, so i will close this issue as finished. thank you again for your contribution.