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Cache properties which return related objects

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This commit is contained in:
jeremystretch 2022-07-07 14:23:05 -04:00
parent 13ef5dc0b3
commit a858e041e4
1 changed files with 6 additions and 6 deletions
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12
netbox/dcim/models/device_components.py
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@ -1,3 +1,5 @@
from functools import cached_property
from django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation from django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation
from django.contrib.contenttypes.models import ContentType from django.contrib.contenttypes.models import ContentType
from django.core.exceptions import ValidationError from django.core.exceptions import ValidationError
@ -150,7 +152,7 @@ class CabledObjectModel(models.Model):
""" """
return self.cable return self.cable
@property @cached_property
def link_peers(self): def link_peers(self):
if self.cable: if self.cable:
peers = self.cable.terminations.exclude(cable_end=self.cable_end).prefetch_related('termination') peers = self.cable.terminations.exclude(cable_end=self.cable_end).prefetch_related('termination')
@ -217,14 +219,12 @@ class PathEndpoint(models.Model):
# Return the path as a list of three-tuples (A termination(s), cable(s), B termination(s)) # Return the path as a list of three-tuples (A termination(s), cable(s), B termination(s))
return list(zip(*[iter(path)] * 3)) return list(zip(*[iter(path)] * 3))
@property @cached_property
def connected_endpoints(self): def connected_endpoints(self):
""" """
Caching accessor for the attached CablePath's destination (if any) Caching accessor for the attached CablePath's destination (if any)
""" """
if not hasattr(self, '_connected_endpoints'): return self._path.destinations if self._path else []
self._connected_endpoints = self._path.destinations if self._path else []
return self._connected_endpoints
# #
@ -830,7 +830,7 @@ class Interface(ModularComponentModel, BaseInterface, CabledObjectModel, PathEnd
def link(self): def link(self):
return self.cable or self.wireless_link return self.cable or self.wireless_link
@property @cached_property
def link_peers(self): def link_peers(self):
if self.cable: if self.cable:
return super().link_peers return super().link_peers