django-orchestra/orchestra/admin/options.py

254 lines
10 KiB
Python

from django import forms
from django.conf.urls import patterns, url
from django.contrib import admin, messages
from django.contrib.admin.options import IS_POPUP_VAR
from django.contrib.admin.utils import unquote
from django.contrib.auth import update_session_auth_hash
from django.core.exceptions import PermissionDenied
from django.http import HttpResponseRedirect
from django.forms.models import BaseInlineFormSet
from django.shortcuts import get_object_or_404
from django.template.response import TemplateResponse
from django.utils.decorators import method_decorator
from django.utils.html import escape
from django.utils.translation import ugettext_lazy as _
from django.views.decorators.debug import sensitive_post_parameters
from ..utils.python import random_ascii
from .forms import AdminPasswordChangeForm
#from django.contrib.auth.forms import AdminPasswordChangeForm
from .utils import set_url_query, action_to_view
sensitive_post_parameters_m = method_decorator(sensitive_post_parameters())
class ChangeListDefaultFilter(object):
"""
Enables support for default filtering on admin change list pages
Your model admin class should define an default_changelist_filters attribute
default_changelist_filters = (('my_nodes', 'True'),)
"""
default_changelist_filters = ()
def changelist_view(self, request, extra_context=None):
""" Default filter as 'my_nodes=True' """
defaults = []
for key, value in self.default_changelist_filters:
set_url_query(request, key, value)
defaults.append(key)
# hack response cl context in order to hook default filter awaearness
# into search_form.html template
response = super(ChangeListDefaultFilter, self).changelist_view(request, extra_context)
if hasattr(response, 'context_data') and 'cl' in response.context_data:
response.context_data['cl'].default_changelist_filters = defaults
return response
class AtLeastOneRequiredInlineFormSet(BaseInlineFormSet):
def clean(self):
"""Check that at least one service has been entered."""
super(AtLeastOneRequiredInlineFormSet, self).clean()
if any(self.errors):
return
if not any(cleaned_data and not cleaned_data.get('DELETE', False)
for cleaned_data in self.cleaned_data):
raise forms.ValidationError('At least one item required.')
class ChangeViewActionsMixin(object):
""" Makes actions visible on the admin change view page. """
change_view_actions = ()
change_form_template = 'orchestra/admin/change_form.html'
def get_urls(self):
"""Returns the additional urls for the change view links"""
urls = super(ChangeViewActionsMixin, self).get_urls()
admin_site = self.admin_site
opts = self.model._meta
new_urls = patterns('')
for action in self.get_change_view_actions():
new_urls += patterns('',
url('^(\d+)/%s/$' % action.url_name,
admin_site.admin_view(action),
name='%s_%s_%s' % (opts.app_label, opts.model_name, action.url_name)
)
)
return new_urls + urls
def get_change_view_actions(self, obj=None):
""" allow customization on modelamdin """
views = []
for action in self.change_view_actions:
if isinstance(action, str):
action = getattr(self, action)
view = action_to_view(action, self)
view.url_name = getattr(action, 'url_name', action.__name__)
verbose_name = getattr(action, 'verbose_name',
view.url_name.capitalize().replace('_', ' '))
if hasattr(verbose_name, '__call__'):
verbose_name = verbose_name(obj)
view.verbose_name = verbose_name
view.css_class = getattr(action, 'css_class', 'historylink')
view.description = getattr(action, 'description', '')
views.append(view)
return views
def change_view(self, request, object_id, **kwargs):
if kwargs.get('extra_context', None) is None:
kwargs['extra_context'] = {}
obj = self.get_object(request, unquote(object_id))
kwargs['extra_context']['object_tools_items'] = [
action.__dict__ for action in self.get_change_view_actions(obj)
]
return super(ChangeViewActionsMixin, self).change_view(request, object_id, **kwargs)
class ChangeAddFieldsMixin(object):
""" Enables to specify different set of fields for change and add views """
add_fields = ()
add_fieldsets = ()
add_form = None
add_prepopulated_fields = {}
change_readonly_fields = ()
add_inlines = None
def get_prepopulated_fields(self, request, obj=None):
if not obj:
return super(ChangeAddFieldsMixin, self).get_prepopulated_fields(request, obj)
return {}
def get_change_readonly_fields(self, request, obj=None):
return self.change_readonly_fields
def get_readonly_fields(self, request, obj=None):
fields = super(ChangeAddFieldsMixin, self).get_readonly_fields(request, obj)
if obj:
return fields + self.get_change_readonly_fields(request, obj)
return fields
def get_fieldsets(self, request, obj=None):
if not obj:
if self.add_fieldsets:
return self.add_fieldsets
elif self.add_fields:
return [(None, {'fields': self.add_fields})]
return super(ChangeAddFieldsMixin, self).get_fieldsets(request, obj)
def get_inline_instances(self, request, obj=None):
""" add_inlines and inline.parent_object """
if obj:
self.inlines = type(self).inlines
else:
self.inlines = self.inlines if self.add_inlines is None else self.add_inlines
inlines = super(ChangeAddFieldsMixin, self).get_inline_instances(request, obj)
for inline in inlines:
inline.parent_object = obj
return inlines
def get_form(self, request, obj=None, **kwargs):
""" Use special form during user creation """
defaults = {}
if obj is None and self.add_form:
defaults['form'] = self.add_form
defaults.update(kwargs)
return super(ChangeAddFieldsMixin, self).get_form(request, obj, **defaults)
class ExtendedModelAdmin(ChangeViewActionsMixin, ChangeAddFieldsMixin, admin.ModelAdmin):
list_prefetch_related = None
def get_queryset(self, request):
qs = super(ExtendedModelAdmin, self).get_queryset(request)
if self.list_prefetch_related:
qs = qs.prefetch_related(*self.list_prefetch_related)
return qs
class ChangePasswordAdminMixin(object):
change_password_form = AdminPasswordChangeForm
change_user_password_template = 'admin/orchestra/change_password.html'
def get_urls(self):
opts = self.model._meta
info = opts.app_label, opts.model_name
return patterns('',
url(r'^(\d+)/password/$',
self.admin_site.admin_view(self.change_password),
name='%s_%s_change_password' % info),
) + super(ChangePasswordAdminMixin, self).get_urls()
@sensitive_post_parameters_m
def change_password(self, request, id, form_url=''):
if not self.has_change_permission(request):
raise PermissionDenied
# TODO use this insetad of self.get_object(), in other places
user = get_object_or_404(self.get_queryset(request), pk=id)
related = []
try:
# don't know why getattr(user, 'username', user.name) doesn't work
username = user.username
except AttributeError:
username = user.name
if hasattr(user, 'account'):
account = user.account
if user.account.username == username:
related.append(user.account)
else:
account = user
if account.username == username:
for rel in account.get_related_passwords():
if not isinstance(user, type(rel)):
related.append(rel)
if request.method == 'POST':
form = self.change_password_form(user, request.POST, related=related)
if form.is_valid():
form.save()
change_message = self.construct_change_message(request, form, None)
self.log_change(request, user, change_message)
msg = _('Password changed successfully.')
messages.success(request, msg)
update_session_auth_hash(request, form.user) # This is safe
return HttpResponseRedirect('..')
else:
form = self.change_password_form(user, related=related)
fieldsets = [
(user._meta.verbose_name.capitalize(), {
'classes': ('wide',),
'fields': ('password1', 'password2')
}),
]
for ix, rel in enumerate(related):
fieldsets.append((rel._meta.verbose_name.capitalize(), {
'classes': ('wide',),
'fields': ('password1_%i' % ix, 'password2_%i' % ix)
}))
adminForm = admin.helpers.AdminForm(form, fieldsets, {})
context = {
'title': _('Change password: %s') % escape(username),
'adminform': adminForm,
'errors': admin.helpers.AdminErrorList(form, []),
'form_url': form_url,
'is_popup': (IS_POPUP_VAR in request.POST or
IS_POPUP_VAR in request.GET),
'add': True,
'change': False,
'has_delete_permission': False,
'has_change_permission': True,
'has_absolute_url': False,
'opts': self.model._meta,
'original': user,
'save_as': False,
'show_save': True,
'password': random_ascii(10),
}
context.update(admin.site.each_context(request))
return TemplateResponse(request,
self.change_user_password_template,
context, current_app=self.admin_site.name)