ListGrid validation error message not displayed

[nabla52]

Hi

When a validation error occurs from my (GWT) server, I do the following:

final Map<String, String> fieldErrors = new HashMap<String, String>();
fieldErrors.put("name", "This should be my error message");
final DSResponse response = new DSResponse();
response.setAttribute("clientContext", request.getAttributeAsObject("clientContext"));
response.setStatus(DSResponse.STATUS_VALIDATION_ERROR);
response.setErrors(fieldErrors);

This works with a DynamicForm but when using a ListGrid the error message shown against the column (named 'name') is always "undefined" !!! Why? If I explicitely use ListGrid.setFieldError(row, "name", "This should be my error message") the ListGrid displays the right message!

Can you help. Many thanks

[Isomorphic]

Possibly a bug in the GWTRPCDataSource, try posting in that thread.

Or just use SmartGWT Pro, where this and many other things are handled automatically..

[avthart]

This is not a bug in the datasource.

The following code does not work with a ListGrid:

final Map<String, String> fieldErrors = new HashMap<String, String>();
fieldErrors.put("name", "This should be my error message");
final DSResponse response = new DSResponse();
response.setErrors(fieldErrors);
response.setStatus(DSResponse.STATUS_VALIDATION_ERROR);
processResponse(request.getRequestId(), response);

This is probably a bug in the class ListGrid, because it works in a DynamicForm

See ListGrid.parseServerErrors() function.

for (var fieldName in errors) {
var fieldErrors = errors[fieldName];
if (isc.isAn.Array(fieldErrors)) {
for (var i = 0; i < fieldErrors.length; i++) {
fieldErrors[i] = fieldErrors[i].errorMessage;
}
} else {
errors[fieldName] = [fieldErrors.errorMessage];
}
}

This function expects a errorMessage property which you can 't set with the method

DSResponse.setErrors(Map errors)

Workaround:

final Record record = new Record();
record.setAttribute("errorMessage", "Name is invalid");
JavaScriptObject valueJS = JSOHelper.createObject();
JSOHelper.setAttribute(valueJS, "name", error.getJsObj());
final DSResponse response = new DSResponse();
response.setErrors(valueJS);
response.setStatus(DSResponse.STATUS_VALIDATION_ERROR);
processResponse(request.getRequestId(), response);

[michalg]

Hi avthart,
I have opened similar thread quite a while ago:
http://forums.smartclient.com/showthread.php?t=6211
and got false opinion that the problem is with WSDataSource.

Thanks very much for your workaround - great !

I hope that Isomorphic will take care of this bug finally.
MichalG

[avthart]

Created an issue, see:
http://code.google.com/p/smartgwt/issues/detail?id=361