handsontable-dynamic-dropdown

 $dynamic_table.handsontable
        startRows: 15
        startCols: items_len
        minSpareRows: 1
        colHeaders: $.cs_data.cs_items_name
        data: load_item()
        columns: item_col_settings
        afterChange:   (changes, source)->
            if changes != null
                row = changes[0][0]
                col = changes[0][1]
                if col == category_col
                    category = item_table.getDataAtCell(row, category_col)
                    products = load_product(category)
                    item_col_settings[items_id.product_name] =
                        type: 'dropdown'
                        source: products
                    item_table.updateSettings({columns:item_col_settings})