Fixed #24474 -- Allowed configuring the admin's empty change list value.
This commit is contained in:
Loek van Gent
Tim Graham
parent
0824c02603
commit
72f769f494
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@ -174,6 +174,7 @@ class RelatedFieldListFilter(FieldListFilter):
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else:
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self.lookup_title = other_model._meta.verbose_name
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self.title = self.lookup_title
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self.empty_value_display = model_admin.get_empty_value_display()
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def has_output(self):
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if self.field.null:
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@ -189,7 +190,6 @@ class RelatedFieldListFilter(FieldListFilter):
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return field.get_choices(include_blank=False)
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def choices(self, cl):
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from django.contrib.admin.views.main import EMPTY_CHANGELIST_VALUE
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yield {
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'selected': self.lookup_val is None and not self.lookup_val_isnull,
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'query_string': cl.get_query_string({},
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@ -210,7 +210,7 @@ class RelatedFieldListFilter(FieldListFilter):
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'query_string': cl.get_query_string({
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self.lookup_kwarg_isnull: 'True',
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}, [self.lookup_kwarg]),
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'display': EMPTY_CHANGELIST_VALUE,
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'display': self.empty_value_display,
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}
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FieldListFilter.register(lambda f: f.remote_field, RelatedFieldListFilter)
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@ -353,6 +353,7 @@ class AllValuesFieldListFilter(FieldListFilter):
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self.lookup_val = request.GET.get(self.lookup_kwarg, None)
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self.lookup_val_isnull = request.GET.get(self.lookup_kwarg_isnull,
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None)
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self.empty_value_display = model_admin.get_empty_value_display()
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parent_model, reverse_path = reverse_field_path(model, field_path)
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# Obey parent ModelAdmin queryset when deciding which options to show
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if model == parent_model:
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@ -370,7 +371,6 @@ class AllValuesFieldListFilter(FieldListFilter):
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return [self.lookup_kwarg, self.lookup_kwarg_isnull]
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def choices(self, cl):
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from django.contrib.admin.views.main import EMPTY_CHANGELIST_VALUE
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yield {
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'selected': (self.lookup_val is None
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and self.lookup_val_isnull is None),
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@ -397,7 +397,7 @@ class AllValuesFieldListFilter(FieldListFilter):
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'query_string': cl.get_query_string({
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self.lookup_kwarg_isnull: 'True',
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}, [self.lookup_kwarg]),
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'display': EMPTY_CHANGELIST_VALUE,
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'display': self.empty_value_display,
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}
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FieldListFilter.register(lambda f: True, AllValuesFieldListFilter)
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@ -174,6 +174,7 @@ class AdminReadonlyField(object):
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self.is_first = is_first
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self.is_checkbox = False
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self.is_readonly = True
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self.empty_value_display = model_admin.get_empty_value_display()
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def label_tag(self):
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attrs = {}
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@ -186,12 +187,11 @@ class AdminReadonlyField(object):
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def contents(self):
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from django.contrib.admin.templatetags.admin_list import _boolean_icon
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from django.contrib.admin.views.main import EMPTY_CHANGELIST_VALUE
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field, obj, model_admin = self.field['field'], self.form.instance, self.model_admin
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try:
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f, attr, value = lookup_field(field, obj, model_admin)
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except (AttributeError, ValueError, ObjectDoesNotExist):
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result_repr = EMPTY_CHANGELIST_VALUE
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result_repr = self.empty_value_display
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else:
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if f is None:
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boolean = getattr(attr, "boolean", False)
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@ -207,7 +207,8 @@ class AdminReadonlyField(object):
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if isinstance(f.remote_field, ManyToManyRel) and value is not None:
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result_repr = ", ".join(map(six.text_type, value.all()))
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else:
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result_repr = display_for_field(value, f)
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empty_value_display = self.model_admin.get_empty_value_display()
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result_repr = display_for_field(value, f, empty_value_display)
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return conditional_escape(result_repr)
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@ -814,6 +814,15 @@ class ModelAdmin(BaseModelAdmin):
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description = capfirst(action.replace('_', ' '))
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return func, action, description
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def get_empty_value_display(self):
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"""
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Return the empty_value_display set on ModelAdmin or AdminSite.
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"""
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try:
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return mark_safe(self.empty_value_display)
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except AttributeError:
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return mark_safe(self.admin_site.empty_value_display)
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def get_list_display(self, request):
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"""
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Return a sequence containing the fields to be displayed on the
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@ -48,6 +48,8 @@ class AdminSite(object):
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# URL for the "View site" link at the top of each admin page.
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site_url = '/'
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_empty_value_display = '-'
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login_form = None
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index_template = None
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app_index_template = None
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@ -154,6 +156,14 @@ class AdminSite(object):
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"""
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return six.iteritems(self._actions)
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@property
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def empty_value_display(self):
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return self._empty_value_display
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@empty_value_display.setter
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def empty_value_display(self, empty_value_display):
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self._empty_value_display = empty_value_display
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def has_permission(self, request):
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"""
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Returns True if the given HttpRequest has permission to view
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@ -8,7 +8,7 @@ from django.contrib.admin.utils import (
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display_for_field, display_for_value, label_for_field, lookup_field,
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)
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from django.contrib.admin.views.main import (
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ALL_VAR, EMPTY_CHANGELIST_VALUE, ORDER_VAR, PAGE_VAR, SEARCH_VAR,
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ALL_VAR, ORDER_VAR, PAGE_VAR, SEARCH_VAR,
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)
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from django.core.exceptions import ObjectDoesNotExist
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from django.core.urlresolvers import NoReverseMatch
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@ -194,20 +194,22 @@ def items_for_result(cl, result, form):
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first = True
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pk = cl.lookup_opts.pk.attname
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for field_name in cl.list_display:
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empty_value_display = cl.model_admin.get_empty_value_display()
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row_classes = ['field-%s' % field_name]
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try:
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f, attr, value = lookup_field(field_name, result, cl.model_admin)
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except ObjectDoesNotExist:
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result_repr = EMPTY_CHANGELIST_VALUE
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result_repr = empty_value_display
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else:
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empty_value_display = getattr(attr, 'empty_value_display', empty_value_display)
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if f is None:
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if field_name == 'action_checkbox':
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row_classes = ['action-checkbox']
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allow_tags = getattr(attr, 'allow_tags', False)
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boolean = getattr(attr, 'boolean', False)
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if boolean:
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if boolean or not value:
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allow_tags = True
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result_repr = display_for_value(value, boolean)
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result_repr = display_for_value(value, empty_value_display, boolean)
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# Strip HTML tags in the resulting text, except if the
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# function has an "allow_tags" attribute set to True.
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if allow_tags:
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@ -218,11 +220,11 @@ def items_for_result(cl, result, form):
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if isinstance(f.remote_field, models.ManyToOneRel):
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field_val = getattr(result, f.name)
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if field_val is None:
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result_repr = EMPTY_CHANGELIST_VALUE
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result_repr = empty_value_display
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else:
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result_repr = field_val
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else:
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result_repr = display_for_field(value, f)
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result_repr = display_for_field(value, f, empty_value_display)
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if isinstance(f, (models.DateField, models.TimeField, models.ForeignKey)):
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row_classes.append('nowrap')
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if force_text(result_repr) == '':
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@ -367,18 +367,17 @@ def help_text_for_field(name, model):
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return smart_text(help_text)
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def display_for_field(value, field):
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def display_for_field(value, field, empty_value_display):
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from django.contrib.admin.templatetags.admin_list import _boolean_icon
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from django.contrib.admin.views.main import EMPTY_CHANGELIST_VALUE
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if field.flatchoices:
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return dict(field.flatchoices).get(value, EMPTY_CHANGELIST_VALUE)
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return dict(field.flatchoices).get(value, empty_value_display)
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# NullBooleanField needs special-case null-handling, so it comes
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# before the general null test.
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elif isinstance(field, models.BooleanField) or isinstance(field, models.NullBooleanField):
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return _boolean_icon(value)
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elif value is None:
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return EMPTY_CHANGELIST_VALUE
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return empty_value_display
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elif isinstance(field, models.DateTimeField):
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return formats.localize(timezone.template_localtime(value))
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elif isinstance(field, (models.DateField, models.TimeField)):
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@ -393,14 +392,13 @@ def display_for_field(value, field):
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return smart_text(value)
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def display_for_value(value, boolean=False):
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def display_for_value(value, empty_value_display, boolean=False):
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from django.contrib.admin.templatetags.admin_list import _boolean_icon
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from django.contrib.admin.views.main import EMPTY_CHANGELIST_VALUE
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if boolean:
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return _boolean_icon(value)
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elif value is None:
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return EMPTY_CHANGELIST_VALUE
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return empty_value_display
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elif isinstance(value, datetime.datetime):
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return formats.localize(timezone.template_localtime(value))
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elif isinstance(value, (datetime.date, datetime.time)):
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@ -33,9 +33,6 @@ ERROR_FLAG = 'e'
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IGNORED_PARAMS = (
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ALL_VAR, ORDER_VAR, ORDER_TYPE_VAR, SEARCH_VAR, IS_POPUP_VAR, TO_FIELD_VAR)
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# Text to display within change-list table cells if the value is blank.
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EMPTY_CHANGELIST_VALUE = '-'
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class ChangeList(object):
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def __init__(self, request, model, list_display, list_display_links,
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@ -205,6 +205,33 @@ subclass::
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to its documentation for some caveats when time zone support is
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enabled (:setting:`USE_TZ = True <USE_TZ>`).
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.. attribute:: ModelAdmin.empty_value_display
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.. versionadded:: 1.9
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This attribute overrides the default display value for record's fields that
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are empty (``None``, empty string, etc.). The default value is ``-`` (a
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dash). For example::
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from django.contrib import admin
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class AuthorAdmin(admin.ModelAdmin):
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empty_value_display = '-empty-'
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You can also override ``empty_value_display`` for all admin pages with
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:attr:`AdminSite.empty_value_display`, or for specific fields like this::
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from django.contrib import admin
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class AuthorAdmin(admin.ModelAdmin):
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fields = ('name', 'title', 'view_birth_date')
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def view_birth_date(self, obj):
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return obj.birth_date
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view_birth_date.short_name = 'birth_date'
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view_birth_date.empty_value_display = '???'
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.. attribute:: ModelAdmin.exclude
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This attribute, if given, should be a list of field names to exclude from
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@ -583,6 +610,33 @@ subclass::
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class PersonAdmin(admin.ModelAdmin):
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list_display = ('first_name', 'last_name', 'colored_name')
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* If the value of a field is ``None``, an empty string, or an iterable
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without elements, Django will display ``-`` (a dash). You can override
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this with :attr:`AdminSite.empty_value_display`::
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from django.contrib import admin
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admin.site.empty_value_display = '(None)'
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You can also use :attr:`AdminSite.empty_value_display`::
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class PersonAdmin(admin.ModelAdmin):
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empty_value_display = 'unknown'
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Or on a field level::
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class PersonAdmin(admin.ModelAdmin):
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list_display = ('name', 'birth_date_view')
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def birth_date_view(self, obj):
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return obj.birth_date
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birth_date_view.empty_value_display = 'unknown'
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.. versionadded:: 1.9
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The ability to customize ``empty_value_display`` was added.
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* If the string given is a method of the model, ``ModelAdmin`` or a
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callable that returns True or False Django will display a pretty
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"on" or "off" icon if you give the method a ``boolean`` attribute
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@ -604,7 +658,6 @@ subclass::
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class PersonAdmin(admin.ModelAdmin):
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list_display = ('name', 'born_in_fifties')
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* The ``__str__()`` (``__unicode__()`` on Python 2) method is just
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as valid in ``list_display`` as any other model method, so it's
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perfectly OK to do this::
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@ -2468,6 +2521,16 @@ Templates can override or extend base admin templates as described in
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Path to a custom template that will be used by the admin site app index view.
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.. attribute:: AdminSite.empty_value_display
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.. versionadded:: 1.9
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The string to use for displaying empty values in the admin site's change
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list. Defaults to a dash. The value can also be overridden on a per
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``ModelAdmin`` basis and on a custom field within a ``ModelAdmin`` by
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setting an ``empty_value_display`` attribute on the field. See
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:attr:`ModelAdmin.empty_value_display` for examples.
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.. attribute:: AdminSite.login_template
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Path to a custom template that will be used by the admin site login view.
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@ -48,6 +48,13 @@ Minor features
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changing the ``select_related()`` values used in the admin's changelist query
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based on the request.
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* :attr:`AdminSite.empty_value_display
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<django.contrib.admin.AdminSite.empty_value_display>` and
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:attr:`ModelAdmin.empty_value_display
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<django.contrib.admin.ModelAdmin.empty_value_display>` were added to override
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the display of empty values in admin change list. You can also customize the
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value for each field.
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:mod:`django.contrib.auth`
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^^^^^^^^^^^^^^^^^^^^^^^^^^
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@ -125,3 +125,12 @@ class DynamicSearchFieldsChildAdmin(admin.ModelAdmin):
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search_fields = super(DynamicSearchFieldsChildAdmin, self).get_search_fields(request)
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search_fields += ('age',)
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return search_fields
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class EmptyValueChildAdmin(admin.ModelAdmin):
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empty_value_display = '-empty-'
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list_display = ('name', 'age_display', 'age')
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def age_display(self, obj):
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return obj.age
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age_display.empty_value_display = '†'
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@ -20,9 +20,9 @@ from .admin import (
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BandAdmin, ChildAdmin, ChordsBandAdmin, CustomPaginationAdmin,
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CustomPaginator, DynamicListDisplayChildAdmin,
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DynamicListDisplayLinksChildAdmin, DynamicListFilterChildAdmin,
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DynamicSearchFieldsChildAdmin, FilteredChildAdmin, GroupAdmin,
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InvitationAdmin, NoListDisplayLinksParentAdmin, ParentAdmin, QuartetAdmin,
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SwallowAdmin, site as custom_site,
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DynamicSearchFieldsChildAdmin, EmptyValueChildAdmin, FilteredChildAdmin,
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GroupAdmin, InvitationAdmin, NoListDisplayLinksParentAdmin, ParentAdmin,
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QuartetAdmin, SwallowAdmin, site as custom_site,
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)
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from .models import (
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Band, Child, ChordsBand, ChordsMusician, CustomIdUser, Event, Genre, Group,
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@ -116,7 +116,60 @@ class ChangeListTests(TestCase):
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context = Context({'cl': cl})
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table_output = template.render(context)
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link = reverse('admin:admin_changelist_child_change', args=(new_child.id,))
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row_html = '<tbody><tr class="row1"><th class="field-name"><a href="%s">name</a></th><td class="field-parent nowrap">-</td></tr></tbody>' % link
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row_html = (
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'<tbody><tr class="row1"><th class="field-name"><a href="%s">name</a></th>'
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'<td class="field-parent nowrap">-</td></tr></tbody>' % link
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)
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self.assertNotEqual(table_output.find(row_html), -1,
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'Failed to find expected row element: %s' % table_output)
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def test_result_list_set_empty_value_display_on_admin_site(self):
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"""
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Test that empty value display can be set on AdminSite
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"""
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new_child = Child.objects.create(name='name', parent=None)
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request = self.factory.get('/child/')
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# Set a new empty display value on AdminSite.
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admin.site.empty_value_display = '???'
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m = ChildAdmin(Child, admin.site)
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list_display = m.get_list_display(request)
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list_display_links = m.get_list_display_links(request, list_display)
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cl = ChangeList(request, Child, list_display, list_display_links,
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m.list_filter, m.date_hierarchy, m.search_fields,
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m.list_select_related, m.list_per_page, m.list_max_show_all, m.list_editable, m)
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cl.formset = None
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template = Template('{% load admin_list %}{% spaceless %}{% result_list cl %}{% endspaceless %}')
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context = Context({'cl': cl})
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table_output = template.render(context)
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link = reverse('admin:admin_changelist_child_change', args=(new_child.id,))
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row_html = (
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'<tbody><tr class="row1"><th class="field-name"><a href="%s">name</a></th>'
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'<td class="field-parent nowrap">???</td></tr></tbody>' % link
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)
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self.assertNotEqual(table_output.find(row_html), -1,
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'Failed to find expected row element: %s' % table_output)
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def test_result_list_set_empty_value_display_in_model_admin(self):
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"""
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Test that empty value display can be set in ModelAdmin or individual fields.
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"""
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new_child = Child.objects.create(name='name', parent=None)
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request = self.factory.get('/child/')
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m = EmptyValueChildAdmin(Child, admin.site)
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list_display = m.get_list_display(request)
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list_display_links = m.get_list_display_links(request, list_display)
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cl = ChangeList(request, Child, list_display, list_display_links,
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m.list_filter, m.date_hierarchy, m.search_fields,
|
||||
m.list_select_related, m.list_per_page, m.list_max_show_all, m.list_editable, m)
|
||||
cl.formset = None
|
||||
template = Template('{% load admin_list %}{% spaceless %}{% result_list cl %}{% endspaceless %}')
|
||||
context = Context({'cl': cl})
|
||||
table_output = template.render(context)
|
||||
link = reverse('admin:admin_changelist_child_change', args=(new_child.id,))
|
||||
row_html = (
|
||||
'<tbody><tr class="row1"><th class="field-name"><a href="%s">name</a></th>'
|
||||
'<td class="field-age_display">†</td><td class="field-age">-empty-</td></tr></tbody>' % link
|
||||
)
|
||||
self.assertNotEqual(table_output.find(row_html), -1,
|
||||
'Failed to find expected row element: %s' % table_output)
|
||||
|
||||
|
|
@ -139,7 +192,10 @@ class ChangeListTests(TestCase):
|
|||
context = Context({'cl': cl})
|
||||
table_output = template.render(context)
|
||||
link = reverse('admin:admin_changelist_child_change', args=(new_child.id,))
|
||||
row_html = '<tbody><tr class="row1"><th class="field-name"><a href="%s">name</a></th><td class="field-parent nowrap">Parent object</td></tr></tbody>' % link
|
||||
row_html = (
|
||||
'<tbody><tr class="row1"><th class="field-name"><a href="%s">name</a></th>'
|
||||
'<td class="field-parent nowrap">Parent object</td></tr></tbody>' % link
|
||||
)
|
||||
self.assertNotEqual(table_output.find(row_html), -1,
|
||||
'Failed to find expected row element: %s' % table_output)
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue