Customize Loop Query

https://developer.wordpress.org/refere…uery_vars

Frontend:

function set_query_for_documents_list($query, $block)
{
   $current_post_id = get_the_id();
   $current_post_type = get_post_type($current_post_id);

   if ($current_post_type === 'textos') {
       $documents_flag = get_field('documents_flag', $current_post_id);

       if ($documents_flag) {
           $documents = get_field('documents', $current_post_id);
           $rule = $documents['selection_rule'];

           if ($rule === 'typology') {
               $terms_ids = $documents['terms'];
               $query['tax_query'] = [[
                   'taxonomy' => 'tipologias',
                   'field'    => 'term_id',
                   'terms'    => $terms_ids,
               ]];
           } else if ($rule === 'manual') {
               $documents_ids = $documents['selection'];
               $query['post__in'] = $documents_ids;
           }
       }
   }

   return $query;
}

add_filter('query_loop_block_query_vars', 'wpdocs_randomize_query', 10, 2);

Editor:

add_filter('rest_listas_ficheiros_query', 'wpfieldwork_rest_upcoming_events', 10, 2);
function set_editor_query_for_documents_list($args, $request)
{
   $customFields = $request['customFields'];

   if ($customFields) {
       $referer_url = wp_get_referer();
       $queryString = parse_url($referer_url, PHP_URL_QUERY);
       parse_str($queryString, $params);

       $current_post_id = $params['post'];
       $current_post_type = get_post_type($current_post_id);

       if ($current_post_type === 'textos') {
           $documents_flag = get_field('documents_flag', $current_post_id);

           if ($documents_flag) {
               $documents = get_field('documents', $current_post_id);
               $rule = $documents['selection_rule'];

               if ($rule === 'typology') {
                   $terms_ids = $documents['terms'];
                   $args['tax_query'] = [[
                       'taxonomy' => 'tipologias',
                       'field'    => 'term_id',
                       'terms'    => $terms_ids,
                   ]];
               } else if ($rule === 'manual') {
                   $documents_ids = $documents['selection'];
                   $args['post__in'] = $documents_ids;
               }
           }
       }
   }

   return $args;
}

JS:

const postType = useSelect(
    (select) => select("core/editor").getCurrentPostType(),
    [],
);
const postPostId = useSelect(
    (select) => select("core/editor").getCurrentPostId(),
    [],
);

const postRecords = useSelect(
    (select) => {
        return select("core").getEntityRecords(
            "postType",
            postType,
            postPostId,
        );
    },
    [postType, postPostId],
);

let documentsFlag;
let documents;

if (postRecords !== null) {
    const postData = postRecords[0];
    const acfFields = postData.acf;
    documentsFlag = acfFields.documents_flag;
    documents = acfFields.documents;
}

useEffect(() => {
    if (documents !== null && documentsFlag) {
        const parentBlockId = select("core/block-editor").getBlockRootClientId(
            props.clientId,
        );

        const parentParentBlockId =
            select("core/block-editor").getBlockRootClientId(parentBlockId);

        const rule = documents.selection_rule;
        let query = {
            postType: props.context.postType,
        };
        console.log(props.context.postType);

        if (rule === "typology") {
            query.taxQuery = {
                tipologias: documents.terms,
            };
        } else if (rule === "manual") {
            query.include = documents.selection;
        }

        dispatch("core/block-editor").updateBlockAttributes(parentParentBlockId, {
            query,
        });
    }
}, [documents, documentsFlag]);

Note: When defining the code on the server side, changes are not reactive in the block editor. To achieve an immediate effect, I recommend using Gutenberg’s built-in methods (see link), inside a useEffect.