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05.16.2008 at 07:56AM PDT, ID: 23408505
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6.6

Language / URL Encoding Nightmare (javascript, prototype/ajax, asp, ado, sql server)

Asked by TheFoot in JavaScript, Active Server Pages (ASP)

Tags:

Hi.

I have an ajax-driven (prototype) form that posts to an asp server script to save to the database.  The text language is German, and the characters are getting corrupted by the time it gets to the database.  I will post the code after..

If I call the ajax script directly with either of the following URLs:

/ajax/menu-saveitem.asp?vCMS_MENU_ID=5&vCMS_MENU_ITEM_ID=146&vPARENT_MENU_ITEM_ID=&vDISPLAY_NAME=Kapitalm%E4%EBrkte&vCMS_PAGE_ID=1
/ajax/menu-saveitem.asp?vCMS_MENU_ID=5&vCMS_MENU_ITEM_ID=146&vPARENT_MENU_ITEM_ID=&vDISPLAY_NAME=Kapitalmäërkte&vCMS_PAGE_ID=1

.. then the save works properly, and the actual value held in the SQL Server 2000 table for DISPLAY_NAME is "Kapitalmäërkte".

However when I use the ajax form to post it, it saves to the database as "Kapitalmäërkte".  I use Firebug to show what data is being posted, and the URL escaped value "Kapitalm%C3%A4%C3%ABrkte" is sent to the server.  The URL escaped value here is different to the URL escaped value that I used in the above querystring URL.

All pages are utf-8 encoded, and the documentation for prototype says that ajax requests are all utf-8 encoded.  I have tried various methods of URL encoding on the client, and URL decoding at the server.  Nothing seems to work, at least I cant make sense of any of it.

I think the problem lies in the different values that are posted to the server.  I use form POSTs, but to test the ajax script I used the GET/querystring method.

I really need some help on this as I cannot make head nor tail of what is going on!!  How do I make the ajax script post the data in the same encoding as the first line of the direct ajax test URLs?  I think that would fix the problem.

Thanks, TheFootStart Free Trial 
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======================
AJAX CLIENT POST SCRIPT
======================// Build parameters
		    sParams = 'vCMS_MENU_ID=' + $('vCMS_MENU_ID').value;
		    sParams += '&vCMS_MENU_ITEM_ID=' + $('vCMS_MENU_ITEM_ID').value;
		    sParams += '&vPARENT_MENU_ITEM_ID=' + $('vPARENT_MENU_ITEM_ID').value;
		    sParams += '&vDISPLAY_NAME=' + $('vDISPLAY_NAME').value;
		    sParams += '&vCMS_PAGE_ID=' + $('vCMS_PAGE_ID').value;
		    sParams += '&vURL=' + $('vURL').value;
		    sParams += '&vORDER_NO=' + $('vORDER_NO').value;
 
		    // Save via ajax
		    new Ajax.Request('/ajax/menu-saveitem.asp', {
          method: 'post',
          parameters: sParams,
          onComplete: function(transport){
       
            var oReturn = eval("(" + transport.responseText + ")");
        
            if (oReturn.sErrorMsg.length > 0){
              // Failed
              $('divAjaxStatus').update('Error: ' + oReturn.sErrorMsg).show();
            }else{
              // Success
              gfPropertiesEditYN = false;
              $('divNewRecordStatus').hide();
              nCurrentMenuItemID = oReturn.nMenuItemID;
              $('vCMS_MENU_ITEM_ID').value = nCurrentMenuItemID;
              $('vMenuItemID').value = nCurrentMenuItemID;
              $('vModifiedTS').value = new Date();
              fnRefreshMenu();
              $('divAjaxStatus').hide();
            }
          },
          onFailure: function(transport){
            divStatus.update('An error occurred while contacting the server.  Please refresh the page.').show();
          }
        });
 
======================
AJAX SERVER SCRIPT
======================
'// Check session
  sErrorMsg = fnCheckSession(true)
  
  if len(sErrorMsg) = 0 then
    nMenuID = numConvertLong(request("vCMS_MENU_ID"))
    nMenuItemID = numConvertLong(request("vCMS_MENU_ITEM_ID"))
    nParentMenuItemID = numConvertLong(request("vPARENT_MENU_ITEM_ID"))
    sDisplayName = request("vDISPLAY_NAME")
    nPageID = numConvertLong(request("vCMS_PAGE_ID"))
    sURL = nz(request("vURL"), "")
    nOrderNo = numConvertLong(request("vORDER_NO"))
    
    set oConn = ConnectDB(false, sErrorMsg)
    set rstTemp = server.CreateObject("ADODB.Recordset")
    with rstTemp
      .CursorLocation = adUseClient
      .CursorType = adOpenKeyset
      .LockType = adLockBatchOptimistic
      .ActiveConnection = oConn
      .Open "select * from dt_CMS_MENU_ITEM where CMS_MENU_ITEM_ID = " & nMenuItemID
      .Fields("CMS_MENU_ID") = nMenuID
      .Fields("PARENT_MENU_ITEM_ID") = iif(nParentMenuItemID < 1, null, nParentMenuItemID)
      .Fields("DISPLAY_NAME") = sDisplayName
      .Fields("CMS_PAGE_ID") = nPageID
      .Fields("URL") = sURL
      .Fields("ORDER_NO") = nOrderNo
 
      .updatebatch
      .Close
    end with
    set rstTemp = nothing
    if err <> 0 then sErrorMsg = err.Description
  
    '// Create JSON return object
    sBuffer = _
      "{" & vbcrlf & _
      "  'nMenuItemID':  '" & nMenuItemID & "'," & vbcrlf & _
      "  'sErrorMsg': '" & sErrorMsg & "'," & vbcrlf & _
      "}" & vbcrlf
    
  end if
 
  response.Write sBuffer
  response.end
[+][-]05.16.2008 at 08:10AM PDT, ID: 21583412

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[+][-]05.16.2008 at 09:21AM PDT, ID: 21584123

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[+][-]05.16.2008 at 11:53AM PDT, ID: 21585428

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About this solution

Zones: JavaScript, Active Server Pages (ASP)
Tags: url encoding javascript asp prototype
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Solution Provided By: TheFoot
Participating Experts: 0
Solution Grade: A
 
 
 
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