Filter Links Data in Child Table

Frappe Framework Customization
2

try this
--------------------on .js-------------------------------------

        frappe.ui.form.on(“Doctype Name”, “onload”, function(frm) {
        frm.fields_dict.childtablename.grid.get_field(‘child_field’).get_query =
        function() {
        return {

        	query: "appname.appname.doctype.doctypename.doctypename.methodname",
        filters: {
        	"client":cur_frm.doc.client

        }
        }
        }

        });

    --------------------------on .py--------------------------------------------------

  @frappe.whitelist()
       def methodname(doctype, txt, searchfield, start, page_len, filters):
       	
       	return frappe.db.sql(""" your query """.format(code= filters.get("client")))
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