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Eliminated queries for distinct related object counts for better performance

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This commit is contained in:
Jeremy Stretch
2018-02-02 17:46:23 -05:00
parent 835d13542f
commit d25d8c21f6
5 changed files with 63 additions and 32 deletions
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8
netbox/ipam/models.py
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@@ -196,14 +196,6 @@ class Role(models.Model):
self.weight,
)
@property
def count_prefixes(self):
return self.prefixes.count()
@property
def count_vlans(self):
return self.vlans.count()
@python_2_unicode_compatible
class Prefix(CreatedUpdatedModel, CustomFieldModel):

15
netbox/ipam/tables.py
View File

@@ -228,9 +228,18 @@ class AggregateDetailTable(AggregateTable):
class RoleTable(BaseTable):
pk = ToggleColumn()
prefix_count = tables.TemplateColumn(accessor=Accessor('count_prefixes'), template_code=ROLE_PREFIX_COUNT, orderable=False, verbose_name='Prefixes')
vlan_count = tables.TemplateColumn(accessor=Accessor('count_vlans'), template_code=ROLE_VLAN_COUNT, orderable=False, verbose_name='VLANs')
slug = tables.Column(verbose_name='Slug')
prefix_count = tables.TemplateColumn(
accessor=Accessor('prefixes.count'),
template_code=ROLE_PREFIX_COUNT,
orderable=False,
verbose_name='Prefixes'
)
vlan_count = tables.TemplateColumn(
accessor=Accessor('vlans.count'),
template_code=ROLE_VLAN_COUNT,
orderable=False,
verbose_name='VLANs'
)
actions = tables.TemplateColumn(template_code=ROLE_ACTIONS, attrs={'td': {'class': 'text-right'}}, verbose_name='')
class Meta(BaseTable.Meta):