From 4a9831bd23ad39329501306d5278c1b3e855cd07 Mon Sep 17 00:00:00 2001
From: jeremystretch <jstretch@ns1.com>
Date: Fri, 16 Sep 2022 08:30:46 -0400
Subject: [PATCH] Fixes #10383: Fix assignment of component templates to module
 types via web UI

---
 docs/release-notes/version-3.3.md |  1 +
 netbox/dcim/forms/models.py       | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/docs/release-notes/version-3.3.md b/docs/release-notes/version-3.3.md
index 8a6244744..2748f1edb 100644
--- a/docs/release-notes/version-3.3.md
+++ b/docs/release-notes/version-3.3.md
@@ -4,6 +4,7 @@
 
 ### Bug Fixes
 
+* [#10383](https://github.com/netbox-community/netbox/issues/10383) - Fix assignment of component templates to module types via web UI
 * [#10387](https://github.com/netbox-community/netbox/issues/10387) - Fix `MultiValueDictKeyError` exception when editing a device interface
 
 ---
diff --git a/netbox/dcim/forms/models.py b/netbox/dcim/forms/models.py
index 92545f294..5728e7f2d 100644
--- a/netbox/dcim/forms/models.py
+++ b/netbox/dcim/forms/models.py
@@ -1000,11 +1000,22 @@ class ComponentTemplateForm(BootstrapMixin, forms.ModelForm):
 
 
 class ModularComponentTemplateForm(ComponentTemplateForm):
+    device_type = DynamicModelChoiceField(
+        queryset=DeviceType.objects.all().all(),
+        required=False
+    )
     module_type = DynamicModelChoiceField(
         queryset=ModuleType.objects.all(),
         required=False
     )
 
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
+        # Disable reassignment of ModuleType when editing an existing instance
+        if self.instance.pk:
+            self.fields['module_type'].disabled = True
+
 
 class ConsolePortTemplateForm(ModularComponentTemplateForm):
     fieldsets = (