How to fetch Item Price Rate into Stock Reconcilation Item

Hi there,

I have try to fetch the Item Price Rate into the Stock Reconcilation Item based on Item_code.
I have created a custom script to fetch the data.

frappe.ui.form.on('Stock Reconciliation', {
refresh(frm) {
	if (cur_frm.doc.company == "TOP SERVICE GROUP") {
        cur_frm.set_df_property('expense_accoount', 'options', '211 - 219. Nyers- és alapanyagok - TSG');
    }
}

});

frappe.ui.form.on(‘Stock Reconciliation Item’, {
refresh(frm) {
cur_frm.add_fetch(‘item_price’, ‘price_list_rate’, ‘price_list_rate’);
}
});

I have created two custom field one item_price_list to get the attahced price list and one for the price_list_rate.

But nothing happened.
Please help me out, how to correct this code.

Maybe I have started in the wrong way.

We have separate price list for every Supplier.