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Fixes #1765: Improved rendering of null options for model choice fields in filter forms

This commit is contained in:
Jeremy Stretch
2017-12-26 12:08:22 -05:00
parent b4a842d9da
commit 78ed85943b
7 changed files with 53 additions and 45 deletions

View File

@ -174,7 +174,7 @@ class CircuitFilterForm(BootstrapMixin, CustomFieldFilterForm):
tenant = FilterChoiceField(
queryset=Tenant.objects.annotate(filter_count=Count('circuits')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
site = FilterChoiceField(
queryset=Site.objects.annotate(filter_count=Count('circuit_terminations')),

View File

@ -163,7 +163,7 @@ class SiteFilterForm(BootstrapMixin, CustomFieldFilterForm):
tenant = FilterChoiceField(
queryset=Tenant.objects.annotate(filter_count=Count('sites')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
@ -359,17 +359,17 @@ class RackFilterForm(BootstrapMixin, CustomFieldFilterForm):
group_id = FilterChoiceField(
queryset=RackGroup.objects.select_related('site').annotate(filter_count=Count('racks')),
label='Rack group',
null_option=(0, 'None')
null_label='-- None --'
)
tenant = FilterChoiceField(
queryset=Tenant.objects.annotate(filter_count=Count('racks')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
role = FilterChoiceField(
queryset=RackRole.objects.annotate(filter_count=Count('racks')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
@ -411,7 +411,7 @@ class RackReservationFilterForm(BootstrapMixin, forms.Form):
group_id = FilterChoiceField(
queryset=RackGroup.objects.select_related('site').annotate(filter_count=Count('racks__reservations')),
label='Rack group',
null_option=(0, 'None')
null_label='-- None --'
)
@ -1031,7 +1031,7 @@ class DeviceFilterForm(BootstrapMixin, CustomFieldFilterForm):
rack_id = FilterChoiceField(
queryset=Rack.objects.annotate(filter_count=Count('devices')),
label='Rack',
null_option=(0, 'None'),
null_label='-- None --',
)
role = FilterChoiceField(
queryset=DeviceRole.objects.annotate(filter_count=Count('devices')),
@ -1040,7 +1040,7 @@ class DeviceFilterForm(BootstrapMixin, CustomFieldFilterForm):
tenant = FilterChoiceField(
queryset=Tenant.objects.annotate(filter_count=Count('devices')),
to_field_name='slug',
null_option=(0, 'None'),
null_label='-- None --',
)
manufacturer_id = FilterChoiceField(queryset=Manufacturer.objects.all(), label='Manufacturer')
device_type_id = FilterChoiceField(
@ -1052,7 +1052,7 @@ class DeviceFilterForm(BootstrapMixin, CustomFieldFilterForm):
platform = FilterChoiceField(
queryset=Platform.objects.annotate(filter_count=Count('devices')),
to_field_name='slug',
null_option=(0, 'None'),
null_label='-- None --',
)
status = forms.MultipleChoiceField(choices=device_status_choices, required=False)
mac_address = forms.CharField(required=False, label='MAC address')

View File

@ -78,8 +78,11 @@ class VRFBulkEditForm(BootstrapMixin, CustomFieldBulkEditForm):
class VRFFilterForm(BootstrapMixin, CustomFieldFilterForm):
model = VRF
q = forms.CharField(required=False, label='Search')
tenant = FilterChoiceField(queryset=Tenant.objects.annotate(filter_count=Count('vrfs')), to_field_name='slug',
null_option=(0, None))
tenant = FilterChoiceField(
queryset=Tenant.objects.annotate(filter_count=Count('vrfs')),
to_field_name='slug',
null_label='-- None --'
)
#
@ -368,23 +371,23 @@ class PrefixFilterForm(BootstrapMixin, CustomFieldFilterForm):
queryset=VRF.objects.annotate(filter_count=Count('prefixes')),
to_field_name='rd',
label='VRF',
null_option=(0, 'Global')
null_label='-- Global --'
)
tenant = FilterChoiceField(
queryset=Tenant.objects.annotate(filter_count=Count('prefixes')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
status = forms.MultipleChoiceField(choices=prefix_status_choices, required=False)
site = FilterChoiceField(
queryset=Site.objects.annotate(filter_count=Count('prefixes')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
role = FilterChoiceField(
queryset=Role.objects.annotate(filter_count=Count('prefixes')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
expand = forms.BooleanField(required=False, label='Expand prefix hierarchy')
@ -719,12 +722,12 @@ class IPAddressFilterForm(BootstrapMixin, CustomFieldFilterForm):
queryset=VRF.objects.annotate(filter_count=Count('ip_addresses')),
to_field_name='rd',
label='VRF',
null_option=(0, 'Global')
null_label='-- Global --'
)
tenant = FilterChoiceField(
queryset=Tenant.objects.annotate(filter_count=Count('ip_addresses')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
status = forms.MultipleChoiceField(choices=ipaddress_status_choices, required=False)
role = forms.MultipleChoiceField(choices=ipaddress_role_choices, required=False)
@ -766,7 +769,7 @@ class VLANGroupFilterForm(BootstrapMixin, forms.Form):
site = FilterChoiceField(
queryset=Site.objects.annotate(filter_count=Count('vlan_groups')),
to_field_name='slug',
null_option=(0, 'Global')
null_label='-- Global --'
)
@ -896,23 +899,23 @@ class VLANFilterForm(BootstrapMixin, CustomFieldFilterForm):
site = FilterChoiceField(
queryset=Site.objects.annotate(filter_count=Count('vlans')),
to_field_name='slug',
null_option=(0, 'Global')
null_label='-- Global --'
)
group_id = FilterChoiceField(
queryset=VLANGroup.objects.annotate(filter_count=Count('vlans')),
label='VLAN group',
null_option=(0, 'None')
null_label='-- None --'
)
tenant = FilterChoiceField(
queryset=Tenant.objects.annotate(filter_count=Count('vlans')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
status = forms.MultipleChoiceField(choices=vlan_status_choices, required=False)
role = FilterChoiceField(
queryset=Role.objects.annotate(filter_count=Count('vlans')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)

View File

@ -81,7 +81,7 @@ class TenantFilterForm(BootstrapMixin, CustomFieldFilterForm):
group = FilterChoiceField(
queryset=TenantGroup.objects.annotate(filter_count=Count('tenants')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)

View File

@ -42,7 +42,7 @@ class NullableModelMultipleChoiceField(forms.ModelMultipleChoiceField):
"""
iterator = forms.models.ModelChoiceIterator
def __init__(self, null_value=0, null_label='None', *args, **kwargs):
def __init__(self, null_value=0, null_label='-- None --', *args, **kwargs):
self.null_value = null_value
self.null_label = null_label
super(NullableModelMultipleChoiceField, self).__init__(*args, **kwargs)

View File

@ -407,11 +407,25 @@ class SlugField(forms.SlugField):
self.widget.attrs['slug-source'] = slug_source
class FilterChoiceFieldMixin(object):
iterator = forms.models.ModelChoiceIterator
class FilterChoiceIterator(forms.models.ModelChoiceIterator):
def __init__(self, null_option=None, *args, **kwargs):
self.null_option = null_option
def __iter__(self):
# Filter on "empty" choice using FILTERS_NULL_CHOICE_VALUE (instead of an empty string)
if self.field.null_label is not None:
yield (settings.FILTERS_NULL_CHOICE_VALUE, self.field.null_label)
queryset = self.queryset.all()
# Can't use iterator() when queryset uses prefetch_related()
if not queryset._prefetch_related_lookups:
queryset = queryset.iterator()
for obj in queryset:
yield self.choice(obj)
class FilterChoiceFieldMixin(object):
iterator = FilterChoiceIterator
def __init__(self, null_label=None, *args, **kwargs):
self.null_label = null_label
if 'required' not in kwargs:
kwargs['required'] = False
if 'widget' not in kwargs:
@ -424,15 +438,6 @@ class FilterChoiceFieldMixin(object):
return '{} ({})'.format(label, obj.filter_count)
return label
def _get_choices(self):
if hasattr(self, '_choices'):
return self._choices
if self.null_option is not None:
return itertools.chain([self.null_option], self.iterator(self))
return self.iterator(self)
choices = property(_get_choices, forms.ChoiceField._set_choices)
class FilterChoiceField(FilterChoiceFieldMixin, forms.ModelMultipleChoiceField):
pass

View File

@ -137,13 +137,13 @@ class ClusterFilterForm(BootstrapMixin, CustomFieldFilterForm):
group = FilterChoiceField(
queryset=ClusterGroup.objects.annotate(filter_count=Count('clusters')),
to_field_name='slug',
null_option=(0, 'None'),
null_label='-- None --',
required=False,
)
site = FilterChoiceField(
queryset=Site.objects.annotate(filter_count=Count('clusters')),
to_field_name='slug',
null_option=(0, 'None'),
null_label='-- None --',
required=False,
)
@ -338,12 +338,12 @@ class VirtualMachineFilterForm(BootstrapMixin, CustomFieldFilterForm):
cluster_group = FilterChoiceField(
queryset=ClusterGroup.objects.all(),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
cluster_type = FilterChoiceField(
queryset=ClusterType.objects.all(),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
cluster_id = FilterChoiceField(
queryset=Cluster.objects.annotate(filter_count=Count('virtual_machines')),
@ -352,23 +352,23 @@ class VirtualMachineFilterForm(BootstrapMixin, CustomFieldFilterForm):
site = FilterChoiceField(
queryset=Site.objects.annotate(filter_count=Count('clusters__virtual_machines')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
role = FilterChoiceField(
queryset=DeviceRole.objects.filter(vm_role=True).annotate(filter_count=Count('virtual_machines')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
status = forms.MultipleChoiceField(choices=vm_status_choices, required=False)
tenant = FilterChoiceField(
queryset=Tenant.objects.annotate(filter_count=Count('virtual_machines')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)
platform = FilterChoiceField(
queryset=Platform.objects.annotate(filter_count=Count('virtual_machines')),
to_field_name='slug',
null_option=(0, 'None')
null_label='-- None --'
)