Error when serialize, idea?

[Falcula]

Hi,

Just started to use Gridster. Iam trying to serialize down the state of the grid and save it into database. But when i run the serialize action i get the following error, anyone have any idea?

CODE!

var layout;
var grid_size = 100;
var grid_margin = 5;
var block_params = {
    max_width: 6,
    max_height: 6
};
$(function () {

    layout = $('.layouts_grid ul').gridster({

        widget_margins: [grid_margin, grid_margin],
        widget_base_dimensions: [grid_size, grid_size],

        serialize_params: function ($w, wgd) {
            return {
                x: wgd.col,
                y: wgd.row,
                width: wgd.size_x,
                height: wgd.size_y,
                id: $($w).attr('data-id'),
                name: $($w).find('.block_name').html(),
            };
        },
        min_rows: block_params.max_height
    }).data('gridster');

    // Temp test code!
    var tmp = layout.serialize();
    layout.add_widget(tmp, 4, 2); });

ERROR in jquery-v1.7.1

NS_ERROR_XPC_BAD_CONVERT_JS: Could not convert JavaScript argument arg 0 [nsIDOMDocumentFragment.appendChild] [Stanna vid fel]

fragment.appendChild( ret[i] );

[schreyers]

I found some issues when trying to do the same thing. When i did alerts of all the data i wanted to save it was all fine but once i passed it to where i wanted to save it, the data didn't pull through.

I ended up building seperate arrays for the position and then using them to save the coords into the database.

Hope that helps!