Re: [Demexp-dev] Questions

[Lyu Abe]

Hi David,

> > I'd like to know how I can retrieve questions, answers, votes, etc. I
> > tried to use the "question_info" method, but I do not understand the
> > server's reply because I only got a int value.
>
> No, the question_info() method returns a quite complex data
> structure. Here is part of its XDR (ONC-RPC) description:

Okay, let's consider a simpler case. What about the 
max_question_id(cookie) function? The return value is of type:

struct max_question_id_return_t
{
    return_code_t max_question_id_rc;
    question_id_t max_question_id;
};

containing only a return code and the actual maximum question identifier 
on the server.

So what I do in PHP is:
1/ Generate the properly formatted message to send to the server:
$message = xmlrpcmsg("max_question_id", $cookie);

2/ Send the message...
$xmlrpc_res = $server->send($message);

... but here my $xmlrpc_res value has no particular type. Should I 
declare it as an array on the base of the max_question_id_return_t 
structure?

Diogene suggested to me to take a look at Augustin's code under Dupral 
(link or location?).

        Lyu ABE
        


> struct response_t {
>   response_desc_t r_info_desc;
>   external_link_t r_info_link;
> };
>
> enum question_status_e { tagging_only = 1, public = 2 };
>
> struct question_t {
>   _int32 int q_timestamp;
>   question_id_t q_id;
>   question_desc_t q_desc;
>   date_t q_info_limit_date; /* if set to zero, there is no limit date */
>   question_status_e q_info_status;
>   response_t q_info_responses<MAX_NUMBER_RESPONSES>;
>   int q_info_num_votes;
>   int q_info_elected_responses<MAX_NUMBER_RESPONSES>;
> };
>
> struct question_info_return_t {
>   return_code_t question_info_rc;
>   question_t question_info<MAX_NUMBER_IDS>;
> };
>
>
> Roughly speaking, you have a basic structure (question_info_return_t)
> that contains a return code (question_info_rc) and an array of question
> information (question_info). Each entry of the `question_info' array is
> a structure (question_t) that contains the question timestamp, its id,
> its description, etc.
>
> question_info() is probably not the simplest RPC to start with. Maybe
> Diogene might help you on this.
>
> > My question is not "What am I doing wrong?", but rather "How to properly
> > do that?".
>
> Without some code, it is quite difficult to answer such a question.
>
>
> Yours,
> d.