Download attachments field wise from List view of any DocType

ERPNext
,
1

Is there any way to download attachments field wise from List view of any DocType?

2

Possible, you can download all attachments but not according to the field wise. it’s challenging. You have to write the code in listview.

3 
onload: function(doclist){
	doclist.page.add_actions_menu_item(__("Export as zip"), () => {
		let docnames = doclist.get_checked_items(true);
		if (docnames.length) {
			const fieldMap = {
				'CV': 'cv',
				'Salary Slip': 'salary_slip',
				'Photograph': 'photo',
				'Signature': 'sign'
			};
			
			const fieldOptions = Object.keys(fieldMap);
			
			frappe.prompt([
				{'fieldname': 'field_to_export', 'fieldtype': 'Select', 'label': 'Field data to export', 'options': fieldOptions, 'reqd': 1, 'default': fieldOptions[0]}
			], (values) => {
				const selectedFieldname = fieldMap[values.field_to_export];
				open_url_post("/api/method/doctype.zip_files", {
					files: JSON.stringify(docnames),
					fieldname: selectedFieldname
				});
			}, __("Select Field"));
		}
	});
}

from frappe.core.doctype.file.file import File

@frappe.whitelist()
def zip_files(files: str, fieldname: str = "resume"):
	docs = []
	files = frappe.parse_json(files)
	for docname in files:
		doc = frappe.get_doc(DocType, docname)
		if doc.get(fieldname):
			file = frappe.db.get_value("File", {"file_url": doc.get(fieldname)}, "name")
			if file:
				docs.append(file)
	frappe.response["filename"] = "files.zip"
	frappe.response["filecontent"] = File.zip_files(docs)
	frappe.response["type"] = "download"

I’m currently passing field names statically.
Does anyone have any idea how to dynamically retrieve field labels and names from the list view of any doctype from the docnames?