Send parameters to next doc when invoked by Link field "Create a new Doc'

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1

Hi All,
i have a custom link field in the Purchase Receipt Item child table
as all link fields , i can create a new doc from the drop down combo box as in the picture

createnew
createnew1308×698 62.6 KB

i want to send the current row index to the new created doc in order to fetch some data from it.

Thanks for your support

2 
 let df = frappe.meta.get_docfield("Child Table Name","child_table_field", frm.doc.name);
        df.get_route_options_for_new_doc = function (field) {
            return {
                "field_name": value
            }
        }

Child table name would be Purchase Receipt Item
child. table field would be cats_doc