class ClearableFileInput(FileInput):
initial_text = ugettext_lazy('Currently')
input_text = ugettext_lazy('Change')
clear_checkbox_label = ugettext_lazy('Clear')
template_with_initial = u'%(initial_text)s: %(initial)s %(clear_template)s<br />%(input_text)s: %(input)s'
template_with_clear = u'%(clear)s <label for="%(clear_checkbox_id)s">%(clear_checkbox_label)s</label>'
def clear_checkbox_name(self, name):
"""
Given the name of the file input, return the name of the clear checkbox
input.
"""
return name + '-clear'
def clear_checkbox_id(self, name):
"""
Given the name of the clear checkbox input, return the HTML id for it.
"""
return name + '_id'
def render(self, name, value, attrs=None):
substitutions = {
'initial_text': self.initial_text,
'input_text': self.input_text,
'clear_template': '',
'clear_checkbox_label': self.clear_checkbox_label,
}
template = u'%(input)s'
substitutions['input'] = super(ClearableFileInput, self).render(name, value, attrs)
if value and hasattr(value, "url"):
template = self.template_with_initial
substitutions['initial'] = (u'<a href="%s">%s</a>'
% (escape(value.url),
escape(force_unicode(value))))
if not self.is_required:
checkbox_name = self.clear_checkbox_name(name)
checkbox_id = self.clear_checkbox_id(checkbox_name)
substitutions['clear_checkbox_name'] = conditional_escape(checkbox_name)
substitutions['clear_checkbox_id'] = conditional_escape(checkbox_id)
substitutions['clear'] = CheckboxInput().render(checkbox_name, False, attrs={'id': checkbox_id})
substitutions['clear_template'] = self.template_with_clear % substitutions
return mark_safe(template % substitutions)
def value_from_datadict(self, data, files, name):
upload = super(ClearableFileInput, self).value_from_datadict(data, files, name)
if not self.is_required and CheckboxInput().value_from_datadict(
data, files, self.clear_checkbox_name(name)):
if upload:
# If the user contradicts themselves (uploads a new file AND
# checks the "clear" checkbox), we return a unique marker
# object that FileField will turn into a ValidationError.
return FILE_INPUT_CONTRADICTION
# False signals to clear any existing value, as opposed to just None
return False
return upload
def resolve(self, context):
"""Resolve this variable against a given context."""
if self.lookups is not None:
# We're dealing with a variable that needs to be resolved
value = self._resolve_lookup(context)
else:
# We're dealing with a literal, so it's already been "resolved"
value = self.literal
if self.translate:
if self.message_context:
return pgettext_lazy(self.message_context, value)
else:
return ugettext_lazy(value)
return value
def get_text_list(list_, last_word=ugettext_lazy(u'or')):
"""
>>> get_text_list(['a', 'b', 'c', 'd'])
u'a, b, c or d'
>>> get_text_list(['a', 'b', 'c'], 'and')
u'a, b and c'
>>> get_text_list(['a', 'b'], 'and')
u'a and b'
>>> get_text_list(['a'])
u'a'
>>> get_text_list([])
u''
"""
if len(list_) == 0: return u''
if len(list_) == 1: return force_unicode(list_[0])
return u'%s %s %s' % (
# Translators: This string is used as a separator between list elements
_(', ').join([force_unicode(i) for i in list_][:-1]),
force_unicode(last_word),
force_unicode(list_[-1]))
class AdminAuthenticationForm(AuthenticationForm):
"""
A custom authentication form used in the admin app.
"""
this_is_the_login_form = forms.BooleanField(
widget=forms.HiddenInput,
initial=1,
error_messages={
'required':
ugettext_lazy(
"Please log in again, because your session has expired.")
})
def clean(self):
username = self.cleaned_data.get('username')
password = self.cleaned_data.get('password')
message = ERROR_MESSAGE
if username and password:
self.user_cache = authenticate(username=username,
password=password)
if self.user_cache is None:
if u'@' in username:
# Mistakenly entered e-mail address instead of username? Look it up.
try:
user = User.objects.get(email=username)
except (User.DoesNotExist, User.MultipleObjectsReturned):
# Nothing to do here, moving along.
pass
else:
if user.check_password(password):
message = _(
"Your e-mail address is not your username."
" Try '%s' instead.") % user.username
raise forms.ValidationError(message)
elif not self.user_cache.is_active or not self.user_cache.is_staff:
raise forms.ValidationError(message)
self.check_for_test_cookie()
return self.cleaned_data
else:
title = _("Are you sure?")
context = {
"title": title,
"objects_name": objects_name,
"deletable_objects": [deletable_objects],
'queryset': queryset,
"perms_lacking": perms_needed,
"protected": protected,
"opts": opts,
"app_label": app_label,
'action_checkbox_name': helpers.ACTION_CHECKBOX_NAME,
}
# Display the confirmation page
return TemplateResponse(
request,
modeladmin.delete_selected_confirmation_template or [
"admin/%s/%s/delete_selected_confirmation.html" %
(app_label, opts.object_name.lower()),
"admin/%s/delete_selected_confirmation.html" % app_label,
"admin/delete_selected_confirmation.html"
],
context,
current_app=modeladmin.admin_site.name)
delete_selected.short_description = ugettext_lazy(
"Delete selected %(verbose_name_plural)s")
from my_django import forms
from my_django.contrib.auth import authenticate
from my_django.contrib.auth.forms import AuthenticationForm
from my_django.contrib.auth.models import User
from my_django.utils.translation import ugettext_lazy, ugettext as _
ERROR_MESSAGE = ugettext_lazy(
"Please enter the correct username and password "
"for a staff account. Note that both fields are case-sensitive.")
class AdminAuthenticationForm(AuthenticationForm):
"""
A custom authentication form used in the admin app.
"""
this_is_the_login_form = forms.BooleanField(
widget=forms.HiddenInput,
initial=1,
error_messages={
'required':
ugettext_lazy(
"Please log in again, because your session has expired.")
})
def clean(self):
username = self.cleaned_data.get('username')
password = self.cleaned_data.get('password')
message = ERROR_MESSAGE
# Changelist settings
ALL_VAR = 'all'
ORDER_VAR = 'o'
ORDER_TYPE_VAR = 'ot'
PAGE_VAR = 'p'
SEARCH_VAR = 'q'
TO_FIELD_VAR = 't'
IS_POPUP_VAR = 'pop'
ERROR_FLAG = 'e'
IGNORED_PARAMS = (ALL_VAR, ORDER_VAR, ORDER_TYPE_VAR, SEARCH_VAR, IS_POPUP_VAR,
TO_FIELD_VAR)
# Text to display within change-list table cells if the value is blank.
EMPTY_CHANGELIST_VALUE = ugettext_lazy('(None)')
class ChangeList(object):
def __init__(self, request, model, list_display, list_display_links,
list_filter, date_hierarchy, search_fields,
list_select_related, list_per_page, list_max_show_all,
list_editable, model_admin):
self.model = model
self.opts = model._meta
self.lookup_opts = self.opts
self.root_query_set = model_admin.queryset(request)
self.list_display = list_display
self.list_display_links = list_display_links
self.list_filter = list_filter
self.date_hierarchy = date_hierarchy
def __init__(self, attrs=None):
choices = ((u'1', ugettext_lazy('Unknown')),
(u'2', ugettext_lazy('Yes')),
(u'3', ugettext_lazy('No')))
super(NullBooleanSelect, self).__init__(attrs, choices)
