December 7, 2017 18:34 · Dec 7, 2017
diff --git a/cid.py b/cid.py
@@ -0,0 +1,25 @@
+def apply_cid(obj):
+  cids = models.CallerId.objects.filter(extension=obj).all()
+  for c in cids:
+    c.status = 1
+    c.save()
+
+
+class CidInLineAdmin(admin.TabularInline):
+  model = model.CallerId
+  extra = 0
+
+
+class ExtensionAdmin(admin.ModelAdmin):
+  list_display = (
+    'extension',
+    'employee',
+  )
+  inlines = [
+    CidInLineAdmin,
+  ]
+
+  def save_model(self, request, obj, form, change):
+    obj.save()
+    apply_cid(obj)
+