def contents(self):
from djangocg.contrib.admin.templatetags.admin_list import _boolean_icon
from djangocg.contrib.admin.views.main import EMPTY_CHANGELIST_VALUE
field, obj, model_admin = self.field['field'], self.form.instance, self.model_admin
try:
f, attr, value = lookup_field(field, obj, model_admin)
except (AttributeError, ValueError, ObjectDoesNotExist):
result_repr = EMPTY_CHANGELIST_VALUE
else:
if f is None:
boolean = getattr(attr, "boolean", False)
if boolean:
result_repr = _boolean_icon(value)
else:
result_repr = smart_text(value)
if getattr(attr, "allow_tags", False):
result_repr = mark_safe(result_repr)
else:
if value is None:
result_repr = EMPTY_CHANGELIST_VALUE
elif isinstance(f.rel, ManyToManyRel):
result_repr = ", ".join(map(six.text_type, value.all()))
else:
result_repr = display_for_field(value, f)
return conditional_escape(result_repr)
def test_null_display_for_field(self):
"""
Regression test for #12550: display_for_field should handle None
value.
"""
display_value = display_for_field(None, models.CharField())
self.assertEqual(display_value, EMPTY_CHANGELIST_VALUE)
display_value = display_for_field(None, models.CharField(
choices=(
(None, "test_none"),
)
))
self.assertEqual(display_value, "test_none")
display_value = display_for_field(None, models.DateField())
self.assertEqual(display_value, EMPTY_CHANGELIST_VALUE)
display_value = display_for_field(None, models.TimeField())
self.assertEqual(display_value, EMPTY_CHANGELIST_VALUE)
# Regression test for #13071: NullBooleanField has special
# handling.
display_value = display_for_field(None, models.NullBooleanField())
expected = '<img src="%sadmin/img/icon-unknown.gif" alt="None" />' % settings.STATIC_URL
self.assertEqual(display_value, expected)
display_value = display_for_field(None, models.DecimalField())
self.assertEqual(display_value, EMPTY_CHANGELIST_VALUE)
display_value = display_for_field(None, models.FloatField())
self.assertEqual(display_value, EMPTY_CHANGELIST_VALUE)
def test_values_from_lookup_field(self):
"""
Regression test for #12654: lookup_field
"""
SITE_NAME = 'example.com'
TITLE_TEXT = 'Some title'
CREATED_DATE = datetime.min
ADMIN_METHOD = 'admin method'
SIMPLE_FUNCTION = 'function'
INSTANCE_ATTRIBUTE = 'attr'
class MockModelAdmin(object):
def get_admin_value(self, obj):
return ADMIN_METHOD
simple_function = lambda obj: SIMPLE_FUNCTION
article = Article(
site=Site(domain=SITE_NAME),
title=TITLE_TEXT,
created=CREATED_DATE,
)
article.non_field = INSTANCE_ATTRIBUTE
verifications = (
('site', SITE_NAME),
('created', localize(CREATED_DATE)),
('title', TITLE_TEXT),
('get_admin_value', ADMIN_METHOD),
(simple_function, SIMPLE_FUNCTION),
('test_from_model', article.test_from_model()),
('non_field', INSTANCE_ATTRIBUTE)
)
mock_admin = MockModelAdmin()
for name, value in verifications:
field, attr, resolved_value = lookup_field(name, article, mock_admin)
if field is not None:
resolved_value = display_for_field(resolved_value, field)
self.assertEqual(value, resolved_value)
def items_for_result(cl, result, form):
"""
Generates the actual list of data.
"""
first = True
pk = cl.lookup_opts.pk.attname
for field_name in cl.list_display:
row_class = ""
try:
f, attr, value = lookup_field(field_name, result, cl.model_admin)
except (AttributeError, ObjectDoesNotExist):
result_repr = EMPTY_CHANGELIST_VALUE
else:
if f is None:
if field_name == "action_checkbox":
row_class = mark_safe(' class="action-checkbox"')
allow_tags = getattr(attr, "allow_tags", False)
boolean = getattr(attr, "boolean", False)
if boolean:
allow_tags = True
result_repr = display_for_value(value, boolean)
# Strip HTML tags in the resulting text, except if the
# function has an "allow_tags" attribute set to True.
if allow_tags:
result_repr = mark_safe(result_repr)
if isinstance(value, (datetime.date, datetime.time)):
row_class = mark_safe(' class="nowrap"')
else:
if isinstance(f.rel, models.ManyToOneRel):
field_val = getattr(result, f.name)
if field_val is None:
result_repr = EMPTY_CHANGELIST_VALUE
else:
result_repr = field_val
else:
result_repr = display_for_field(value, f)
if isinstance(f, (models.DateField, models.TimeField, models.ForeignKey)):
row_class = mark_safe(' class="nowrap"')
if force_text(result_repr) == "":
result_repr = mark_safe(" ")
# If list_display_links not defined, add the link tag to the first field
if (first and not cl.list_display_links) or field_name in cl.list_display_links:
table_tag = {True: "th", False: "td"}[first]
first = False
url = cl.url_for_result(result)
# Convert the pk to something that can be used in Javascript.
# Problem cases are long ints (23L) and non-ASCII strings.
if cl.to_field:
attr = str(cl.to_field)
else:
attr = pk
value = result.serializable_value(attr)
result_id = repr(force_text(value))[1:]
yield format_html(
'<{0}{1}><a href="{2}"{3}>{4}</a></{5}>',
table_tag,
row_class,
url,
format_html(' onclick="opener.dismissRelatedLookupPopup(window, {0}); return false;"', result_id)
if cl.is_popup
else "",
result_repr,
table_tag,
)
else:
# By default the fields come from ModelAdmin.list_editable, but if we pull
# the fields out of the form instead of list_editable custom admins
# can provide fields on a per request basis
if (
form
and field_name in form.fields
and not (field_name == cl.model._meta.pk.name and form[cl.model._meta.pk.name].is_hidden)
):
bf = form[field_name]
result_repr = mark_safe(force_text(bf.errors) + force_text(bf))
yield format_html("<td{0}>{1}</td>", row_class, result_repr)
if form and not form[cl.model._meta.pk.name].is_hidden:
yield format_html("<td>{0}</td>", force_text(form[cl.model._meta.pk.name]))