fix: Set fieldname when attaching to field

frappe/public/js/frappe/file_uploader/FileUploader.vue

@@ -144,6 +144,9 @@ export default {
 		docname: {
 			default: null
 		},
+		fieldname: {
+			default: null
+		},
 		folder: {
 			default: 'Home'
 		},
@@ -406,6 +409,10 @@ export default {
 					form_data.append('docname', this.docname);
 				}
 
+				if (this.fieldname) {
+					form_data.append('fieldname', this.fieldname);
+				}
+
 				if (this.method) {
 					form_data.append('method', this.method);
 				}

frappe/public/js/frappe/file_uploader/index.js

@@ -7,6 +7,7 @@ export default class FileUploader {
 		on_success,
 		doctype,
 		docname,
+		fieldname,
 		files,
 		folder,
 		restrictions,
@@ -28,6 +29,7 @@ export default class FileUploader {
 					show_upload_button: !Boolean(this.dialog),
 					doctype,
 					docname,
+					fieldname,
 					method,
 					folder,
 					on_success,

frappe/public/js/frappe/form/controls/attach.js

@@ -66,6 +66,7 @@ frappe.ui.form.ControlAttach = frappe.ui.form.ControlData.extend({
 		if (this.frm) {
 			options.doctype = this.frm.doctype;
 			options.docname = this.frm.docname;
+			options.fieldname = this.df.fieldname;
 		}
 
 		if (this.df.options) {