jQuery Grid Plugin - jqGrid

EDIT: As it turns out, updating the plugin to the latest version fixed my beforeProcessing problem. 

EDIT: if I revert to my original code, so that I return the object that jqGrid expects, and then successfully reload the grid, NOTHING ever runs inside beforeProcessing(){} – not a simple alert('hi'); and not a simple console.log('hi there'); – but I thought that beforeProcessing was supposed to run after a successful ajax call? It sure doesn't seem to work.

I'm initializing my grid like so:

$("#mainGrid").jqGrid({

url : g_MainGridUrl,

datatype : 'json',

height : 660,

autowidth : true,

colNames : g_ColNames,

colModel : g_ColModel,

pager : '#pager',

rowNum : 100,

rowList : [100, 200, 300],

sortname : g_DefaultSort,

sortorder : 'desc',

sortable: true,

viewrecords : true,

caption : 'Results',

hidegrid : false,

rownumbers : true,

jsonReader : {

root : "ROWS",

page : "PAGE",

total : "TOTAL",

records : "RECORDS",

cell : "",

id : g_DefaultSort

},

beforeProcessing: function(data, status, xhr){

console.log(data);

},

loadError: function(xhr, status, error){

alert(xhr.statusText);

},

loadComplete: function(data){

//console.log(data);

// more stuff happens here

}

});

and whenever I want to update the grid, I'm calling it like so:

$('#mainGrid').setGridParam({

url : g_MainGridUrl + Ext.util.JSON.encode(filter)

});

$('#mainGrid').trigger("reloadGrid");

My problem is this: I'm trying to implement a uniform error handler in Coldfusion, so that remote cfc calls that have errors don't just return status=200 responses and die without letting the user know that an error occurred. To that end, I'm trying Ben Nadel's model and returning a uniform struct that's formed like so:

RESPONSE.SUCCESS = "false"

RESPONSE.ERRORS = [array of errors]

RESPONSE.DATA = {normal data that jqgrid expects}

From reading your docs, I tried implementing

beforeProcessing: function(data){

console.log(data + 'hi'); // just to test whether it's working

}

in my initialization code, but nothing is output to the console, whether when first initialized or called again.

So I thought that I should be setting ajaxGridOptions{} instead, but I can't figure out how to make it work – I need to set a RESPONSE.SUCCESS handler that remaps RESPONSE.DATA to the data object expected by jqGrid, and I also need to set a RESPONSE.SUCCESS == 'false' handler as well. My experiments so far have not been fruitful.

Thanks for any help.