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javascript - Classic ASP: how to convert a RecordSet to json notation using AXE json implementation

i'm doing an application with ajax using jQuery and some other tools, and in some part i want to retrieve data with ajax using a classic ASP backend, i saw that exists a good implementation of a JSON class in AXE (Asp extreme edition) framework, and i used it but currently i don't understand how to use it well.

Edit: based on the correct answer of JSON.Stringify fails on Scripting.Dictionary objects Thread, i decided to make a custom function to process Recordsets.

Edit 2: Now i'm losing the value data when call JSON.stringify inside function JSONStringify(object).

when the Recordset is passed as value to JSONStringify everything is ok but when JSON.stringify is executed, the "value" parameter that must contain the recordset becomes undefined

What i'm expecting (example)

passing a Recordset with from a SQL query SELECT name, tel FROM users a see an output like this

[
    {"name":"Jonh Smith", "tel":"12345678"},
    {"name":"April Michelson", "tel":"77788802"},
    ...
]

passing a Dictionary and see something similar based in the elements declared in dictionary.

{
   "element1":"value1",
   "element2":"value2",
   "element3":"value3",
   "element4":"value4",
   "element5":"value5"
}

and if i like to support other type object i can do it expanding the function

Source Code

getcatalogos.asp

<!--#include file="../includes/conexion.asp" -->
<!--#include file="../includes/json2.asp" -->
<!--#include file="../includes/json-stringify-parser.asp" -->
<%
Response.ContentType = "application/json"
dim aVals(2)

function getCatalogo(tipo, params)
    Dim oConn,oCmd,sSQL,oRs,cont2
    Dim aData,oPar,cont
    dim Info 

    set oConn = Server.CreateObject("ADODB.Connection")
    set oCmd = Server.CreateObject("ADODB.Command")

    sWhere = ""

    oConn.ConnectionString = strcon
    oConn.Open
    Set oCmd.ActiveConnection = oConn

    select case tipo
        case "g"
            sSQL = " SELECT cve_gr, descr FROM gr ORDER BY descr ;"
        case "z" 
            sSQL = " SELECT cve_zn, descr FROM zn WHERE cve_gr = ? ORDER BY descr ;"
            if IsArray(params) Then
                Set oPar=oCmd.CreateParameter (params(0),129,1,2,params(1))
                oCmd.Parameters.Append(oPar)
            End if
        case else
            getCatalogo = false
            exit function
    end select

    oCmd.CommandText = sSQL
    Set oRs = oCmd.Execute()
    if Not oRs.EOF Then
        response.write(JSONStringify(oRs))
        getCatalogo = true
    else
        getCatalogo = false
    end if
    oConn.Close
end function

aVals(0) = "cve_gr"
aVals(1) = request.querystring("gr")
if Not getCatalogo(request.querystring("t"),aVals) Then
    %>error<%
end if

%>

json-stringify-parser.asp

<!--#include file="vbsTyper.asp" -->
<script runat="server" language="JScript">

    function JSONStringify(object) {
        VBSTypeName(object);
        return JSON.stringify(object,stringifyData);
    }

    function stringifyData(holder, key, value) {
        var sType = '';
        var result;

        //response.write('pre...holder=' + holder + ',key=' + key + ',value=' + value);
        sType = VBSTypeName(value);
        //response.write('post =' + sType);

        //response.write(sType);
        switch(sType){
            case 'Dictionary':
                result = '{';
                for(var enr = new Enumerator(value); !enr.atEnd(); enr.moveNext()){
                    key = enr.item();
                    result += '"' + key + '": ' + JSON.stringify(value.Item(key));
                };
                result += '}';
                return(result);
                break;
            case 'Recordset':
                response.write('here!!!');
                var sTemp = '';
                result = '{';
                while(!value.EOF){
                    if(Len(result) > 0){
                        result += ',';
                    }
                    result += '{';
                    for (var i = value.Fields.Count - 1; i >= 0; i--){
                        if(len(sTemp) > 0){
                            sTemp += ',';
                        }
                        sTemp += '"' + value.Fields(i).name + '":' + JSON.stringify( value.Fields(i).value);
                    };
                    result += '}';
                }   
                result += '}';
                return result;
                break;
            default:
                //response.write(sType);
                return(value);
        }     
        // return the value to let it be processed in the usual way
        return result;
   }

</script>

vbsTyper.asp

<%
Function VBSTypeName(Obj)
    dim sType 
    sType = Cstr(TypeName(Obj))
    response.write(sType)
    VBSTypeName = sType
End Function
%>
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1 Answer

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This:

response.write(JSON.stringify(oRs))

Should read something like this:

Do Until oRS.EOF
  response.write(JSON.stringify(oRs("cve_gr") & ":" & oRs("descr"))
  oRS.MoveNext
Loop

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