Amount field in Documents

Frappe Framework Custom Script
1

In all the documents, Amount = Rate * Quantity.

I’m populating Rate automatically through a custom script. In this case, the Amount field (which is auto-calculated on entering Rate and Quantity) is not calculated.

Any suggestions to get the Amount field calculated automatically? Thanks!

2

That is a hard problem.

https://github.com/frappe/erpnext/blob/develop/erpnext/public/js/transaction.js#L621

3

We are using this script to calculate the total quantity.

How do we make sure that the fields which change on quantity also get changes when the script runs.

cur_frm.cscript.quantity_in_weight = function(doc, cdt, cdn) {
    var item = frappe.get_doc(cdt, cdn);
    item.qty = item.quantity_in_weight / item.net_weight;
    refresh_field("qty", item.name, item.parentfield);
};
4

Try this one:

cur_frm.cscript.quantity_in_weight = function(doc, cdt, cdn) {
    var item = frappe.get_doc(cdt, cdn);
    var qty = item.net_weight ? flt(item.quantity_in_weight) / flt(item.net_weight) : 0.0;
    frappe.model.set_value(cdt, cdn, "qty", qty);
};
5

Dear Nabin,

 frappe.model.set_value(cdt, cdn, "qty", qty);

This works fine. Now, dependent fields also changes.
Your script improve my code quality. If net_wet is zero, quantity becomes zero.

Thank you very much.