Replaces device_role with role on device model (#13342)

* replaces device_role with role on device model #6391

* fixes lint issue #6391

* revert the database user

* revert test_runner comment

* changes as per review

* Update references to device_role column in UserConfigs

---------

Co-authored-by: Jeremy Stretch <jstretch@netboxlabs.com>

netbox/dcim/svg/cables.py

@@ -167,9 +167,9 @@ class CableTraceSVG:
         if hasattr(instance, 'parent_object'):
             # Termination
             return getattr(instance, 'color', 'f0f0f0') or 'f0f0f0'
-        if hasattr(instance, 'device_role'):
+        if hasattr(instance, 'role'):
             # Device
-            return instance.device_role.color
+            return instance.role.color
         else:
             # Other parent object
             return 'e0e0e0'

netbox/dcim/svg/racks.py

@@ -46,14 +46,14 @@ def get_device_description(device):
     Return a description for a device to be rendered in the rack elevation in the following format
 
     Name: <name>
-    Role: <device_role>
+    Role: <role>
     Device Type: <manufacturer> <model> (<u_height>)
     Asset tag: <asset_tag> (if defined)
     Serial: <serial> (if defined)
     Description: <description> (if defined)
     """
     description = f'Name: {device.name}'
-    description += f'\nRole: {device.device_role}'
+    description += f'\nRole: {device.role}'
     u_height = f'{floatformat(device.device_type.u_height)}U'
     description += f'\nDevice Type: {device.device_type.manufacturer.name} {device.device_type.model} ({u_height})'
     if device.asset_tag:
@@ -205,7 +205,7 @@ class RackElevationSVG:
         """
         Draw the front (mounted) face of a device.
         """
-        color = device.device_role.color
+        color = device.role.color
         image = device.device_type.front_image
         self._draw_device(device, coords, size, color=color, image=image)