Fetch data from Child Table to Parent Doctype Link field

[guimorin]

Have a look here:

Event triggered when you click on 'create new doc' from link field

Here is an example with Purchase Receipt Item where I send supplier to the batch quick entry form: frappe.ui.form.on('Purchase Receipt', { refresh(frm) { var df = frappe.meta.get_docfield("Purchase Receipt Item","batch_no", frm.doc.name); df.get_route_options_for_new_doc = function (field) { return { "item": field.doc.item_code, "supplier": field.doc.supplier } } } })