Misc cleanup

netbox/dcim/models/device_components.py

@@ -227,6 +227,10 @@ class PathEndpoint(models.Model):
         # Return the path as a list of three-tuples (A termination(s), cable(s), B termination(s))
         return list(zip(*[iter(path)] * 3))
 
+    @property
+    def path(self):
+        return self._path
+
     @cached_property
     def connected_endpoints(self):
         """

netbox/dcim/models/devices.py

@@ -1,3 +1,4 @@
+import decimal
 from collections import OrderedDict
 
 import yaml
@@ -279,6 +280,12 @@ class DeviceType(NetBoxModel):
     def clean(self):
         super().clean()
 
+        # U height must be divisible by 0.5
+        if self.u_height % decimal.Decimal(0.5):
+            raise ValidationError({
+                'u_height': "U height must be in increments of 0.5 rack units."
+            })
+
         # If editing an existing DeviceType to have a larger u_height, first validate that *all* instances of it have
         # room to expand within their racks. This validation will impose a very high performance penalty when there are
         # many instances to check, but increasing the u_height of a DeviceType should be a very rare occurrence.
@@ -811,7 +818,11 @@ class Device(NetBoxModel, ConfigContextModel):
                     'position': "Cannot select a rack position without assigning a rack.",
                 })
 
-        # Validate position/face combination
+        # Validate rack position and face
+        if self.position and self.position % decimal.Decimal(0.5):
+            raise ValidationError({
+                'position': "Position must be in increments of 0.5 rack units."
+            })
         if self.position and not self.face:
             raise ValidationError({
                 'face': "Must specify rack face when defining rack position.",