How to add support for custom field with array of id's to other posts

[andyjamesn]

Based on this article:

https://master--wpgraphql-docs.netlify.app/getting-started/custom-fields-and-meta/

I am able to set custom fields for a field that is a string and it works great.

What I am trying to work out is the following

Let's say I have 2 post types.

1. Articles
2. Reporters

Articles has a custom field called reporters and the meta data of that field is stored as an array of reporter post id's

"reporters": [
    "10044679",
    "10044673"
]

This is the code I have so far

1. I assume I need to add get_posts() to get the reporters post data but I am not sure how to structure it correctly.
2. I need to set a different type

register_graphql_field( $post_type_object->graphql_single_name, 'reporters', [
	'type' => 'String',
	'description' => __( 'The color of the post', 'wp-graphql' ),
	'resolve' => function( $post ) {
		$reporters = get_post_meta( $post->ID, 'reporters' );
		return ! empty( $reporters ) ? $reporters : [];
	}
] );

Any help would be greatly appreciated.

[jasonbahl]

@andyjamesn you've registered your field as 'type' => 'String' which means you're promising to return a string, but the resolver is returning an array.

You can update this to return a list of strings by changing the type to be 'type' => [ 'list_of' => 'String' ]

You might also consider using a connection here and registering a connection between the Post Type and Reporters.

see: register_graphql_connection