Show child field in Standard Filter

[szufisher]

@jof2jc

1. in custom app’s hooks.py
   uncomment and modify the line as below
   

   
   
   doctype_list_js = {"Sales Invoice" : "public/js/sales_invoice_list.js"}

2. in your custom app public/js/sales_invoice_list.js file copy the code below
   

   
   
   frappe.listview_settings[‘Sales Invoice’] = {

    onload: function (listview) {
   
        var df = {
   
            fieldname: "item_code",
   
            label:"Item Code",
   
            fieldtype: "Link",
   
            options:"Item",
   
            onchange: function(){
   
                listview.start = 0;
   
                listview.refresh();
   
                listview.on_filter_change();
   
            },
   
        }
   
        listview.page.add_field(df);
   
    }
   

   };

3. Final result