From ad6e34953b16d8c7983b2011f7477d2bcfcb787f Mon Sep 17 00:00:00 2001
From: Oliver <oliver.henry.walters@gmail.com>
Date: Sat, 27 Nov 2021 00:17:31 +1100
Subject: [PATCH] Update placeholders for serial numbers when creating a new
 stock item

---
 InvenTree/templates/js/translated/forms.js |  6 ++++++
 InvenTree/templates/js/translated/stock.js | 18 +++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/InvenTree/templates/js/translated/forms.js b/InvenTree/templates/js/translated/forms.js
index fd1668cc77..5af85d382e 100644
--- a/InvenTree/templates/js/translated/forms.js
+++ b/InvenTree/templates/js/translated/forms.js
@@ -28,6 +28,7 @@
     disableFormInput,
     enableFormInput,
     hideFormInput,
+    setFormInputPlaceholder,
     setFormGroupVisibility,
     showFormInput,
 */
@@ -1276,6 +1277,11 @@ function initializeGroups(fields, options) {
     }
 }
 
+// Set the placeholder value for a field
+function setFormInputPlaceholder(name, placeholder, options) {
+    $(options.modal).find(`#id_${name}`).attr('placeholder', placeholder);
+}
+
 // Clear a form input
 function clearFormInput(name, options) {
     updateFieldValue(name, null, {}, options);
diff --git a/InvenTree/templates/js/translated/stock.js b/InvenTree/templates/js/translated/stock.js
index e5a59d7767..5e92299f03 100644
--- a/InvenTree/templates/js/translated/stock.js
+++ b/InvenTree/templates/js/translated/stock.js
@@ -158,10 +158,26 @@ function stockItemFields(options={}) {
                     // If a "trackable" part is selected, enable serial number field
                     if (data.trackable) {
                         enableFormInput('serial_numbers', opts);
-                        // showFormInput('serial_numbers', opts);
+
+                        // Request part serial number information from the server
+                        inventreeGet(`/api/part/${data.pk}/serial-numbers/`, {}, {
+                            success: function(data) {
+                                var placeholder = '';
+                                if (data.next) {
+                                    placeholder = `{% trans "Next available serial number" %}: ${data.next}`;
+                                } else if (data.latest) {
+                                    placeholder = `{% trans "Latest serial number" %}: ${data.latest}`;
+                                }
+
+                                setFormInputPlaceholder('serial_numbers', placeholder, opts);
+                            }
+                        });
+
                     } else {
                         clearFormInput('serial_numbers', opts);
                         disableFormInput('serial_numbers', opts);
+
+                        setFormInputPlaceholder('serial_numbers', '{% trans "This part cannot be serialized" %}', opts);
                     }
 
                     // Enable / disable fields based on purchaseable status