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Date: Wed, 11 Jul 2012 02:17:50 +0200
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Subject: couch_query_servers
From: Gert Cuykens <gert.cuykens@gmail.com>
To: dev@couchdb.apache.org
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trying to solve this https://issues.apache.org/jira/browse/COUCHDB-1478

i started looking at show

handle_doc_show(Req, Db, DDoc, ShowName, Doc, DocId) ->
    % get responder for ddoc/showname
    CurrentEtag = show_etag(Req, Doc, DDoc, []),
    couch_httpd:etag_respond(Req, CurrentEtag, fun() ->
        JsonReq = couch_httpd_external:json_req_obj(Req, Db, DocId),
        JsonDoc = couch_query_servers:json_doc(Doc),
        [<<"resp">>, ExternalResp] =
            couch_query_servers:ddoc_prompt(DDoc, [<<"shows">>, ShowName],
                [JsonDoc, JsonReq]),
        JsonResp = apply_etag(ExternalResp, CurrentEtag),
        couch_httpd_external:send_external_response(Req, JsonResp)
    end).

Ended up in couch_query_servers

   proc_prompt_raw(#proc{prompt_fun = {Mod, Func}} = Proc, Args) ->
    apply(Mod, Func, [Proc#proc.pid, Args]).

I have no idea where to even start trying to make this work in a show function?

   return {file:doc.attachment...}