From 75a93d90573ea97391b6ca03d8a404d681588a69 Mon Sep 17 00:00:00 2001
From: Rucha Mahabal <ruchamahabal2@gmail.com>
Date: Fri, 22 Jan 2021 15:51:25 +0530
Subject: [PATCH] feat: fetch date field for custom doctypes

---
 .../patient_history_settings.js               | 23 +++++++++++++++++++
 .../patient_history_settings.py               |  8 +++++++
 2 files changed, 31 insertions(+)

diff --git a/erpnext/healthcare/doctype/patient_history_settings/patient_history_settings.js b/erpnext/healthcare/doctype/patient_history_settings/patient_history_settings.js
index 5ea17af459..17324495e6 100644
--- a/erpnext/healthcare/doctype/patient_history_settings/patient_history_settings.js
+++ b/erpnext/healthcare/doctype/patient_history_settings/patient_history_settings.js
@@ -85,10 +85,33 @@ frappe.ui.form.on('Patient History Settings', {
 		});
 
 		d.show();
+	},
+
+	get_date_field_for_dt: function(frm, row) {
+		frm.call({
+			method: 'get_date_field_for_dt',
+			doc: frm.doc,
+			args: {
+				document_type: row.document_type
+			},
+			callback: function(data) {
+				if (data.message) {
+					frappe.model.set_value('Patient History Custom Document Type',
+						row.name, 'date_fieldname', data.message);
+				}
+			}
+		});
 	}
 });
 
 frappe.ui.form.on('Patient History Custom Document Type', {
+	document_type: function(frm, cdt, cdn) {
+		let row = locals[cdt][cdn];
+		if (row.document_type) {
+			frm.events.get_date_field_for_dt(frm, row);
+		}
+	},
+
 	add_edit_fields: function(frm, cdt, cdn) {
 		let row = locals[cdt][cdn];
 		if (row.document_type) {
diff --git a/erpnext/healthcare/doctype/patient_history_settings/patient_history_settings.py b/erpnext/healthcare/doctype/patient_history_settings/patient_history_settings.py
index 9ef97214c5..2e8c994c3d 100644
--- a/erpnext/healthcare/doctype/patient_history_settings/patient_history_settings.py
+++ b/erpnext/healthcare/doctype/patient_history_settings/patient_history_settings.py
@@ -49,6 +49,14 @@ class PatientHistorySettings(Document):
 
 		return multicheck_fields
 
+	def get_date_field_for_dt(self, document_type):
+		meta = frappe.get_meta(document_type)
+		date_fields = meta.get('fields', {
+			'fieldtype': ['in', ['Date', 'Datetime']]
+		})
+
+		if date_fields:
+			return date_fields[0].get('fieldname')
 
 def create_medical_record(doc, method=None):
 	medical_record_required = validate_medical_record_required(doc)