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import re
from django import forms, template
from django.contrib import admin
from django.contrib.admin import helpers
from django.contrib.admin.util import unquote
from django.core.exceptions import PermissionDenied
from django.db import transaction
from django.db.models import loading
from django.forms.formsets import all_valid
from django.forms.models import modelform_factory, inlineformset_factory
from django.http import HttpResponseRedirect, Http404
from django.shortcuts import render_to_response
from django.utils.decorators import method_decorator
from django.utils.encoding import force_unicode
from django.utils.functional import curry
from django.utils.translation import ugettext as _
from django.views.decorators.csrf import csrf_protect
from feincms import settings
FRONTEND_EDITING_MATCHER = re.compile(r'(\d+)\|(\w+)\|(\d+)')
csrf_protect_m = method_decorator(csrf_protect)
class ItemEditorForm(forms.ModelForm):
region = forms.CharField(widget=forms.HiddenInput())
ordering = forms.IntegerField(widget=forms.HiddenInput())
class ItemEditor(admin.ModelAdmin):
"""
This ModelAdmin class needs an attribute:
show_on_top:
A list of fields which should be displayed at the top of the form.
This does not need to (and should not) include ``template``
"""
def __init__(self, *args, **kwargs):
# Make sure all models are completely loaded before attempting to
# proceed. The dynamic nature of FeinCMS models makes this necessary.
# For more informations, have a look at issue #23 on github:
# http://github.com/matthiask/feincms/issues#issue/23
from django.core.management.validation import get_validation_errors
from StringIO import StringIO
get_validation_errors(StringIO(), None)
super(ItemEditor, self).__init__(*args, **kwargs)
def _formfield_callback(self, request):
if settings.DJANGO10_COMPAT:
# This should compare for Django SVN before [9761] (From 2009-01-16),
# but I don't care that much. Doesn't work with git checkouts anyway, so...
return self.formfield_for_dbfield
else:
return curry(self.formfield_for_dbfield, request=request)
def _frontend_editing_view(self, request, cms_id, content_type, content_id):
"""
This view is used strictly for frontend editing -- it is not used inside the
standard administration interface.
The code in feincms/templates/admin/feincms/fe_tools.html knows how to call
this view correctly.
"""
try:
model_cls = loading.get_model(self.model._meta.app_label, content_type)
obj = model_cls.objects.get(parent=cms_id, id=content_id)
except:
raise Http404
form_class_base = getattr(model_cls, 'feincms_item_editor_form', ItemEditorForm)
ModelForm = modelform_factory(model_cls,
exclude=('parent', 'region', 'ordering'),
form=form_class_base,
formfield_callback=self._formfield_callback(request=request))
# we do not want to edit these two fields in the frontend editing mode; we are
# strictly editing single content blocks there.
# We have to remove them from the form because we explicitly redefined them in
# the ItemEditorForm definition above. Just using exclude is not enough.
del ModelForm.base_fields['region']
del ModelForm.base_fields['ordering']
if request.method == 'POST':
# The prefix is used to replace the formset identifier from the ItemEditor
# interface. Customization of the form is easily possible through either matching
# the prefix (frontend editing) or the formset identifier (ItemEditor) as it is
# done in the richtext and mediafile init.html item editor includes.
form = ModelForm(request.POST, instance=obj, prefix=content_type)
if form.is_valid():
obj = form.save()
return render_to_response('admin/feincms/fe_editor_done.html', {
'content': obj.render(request=request),
'identifier': obj.fe_identifier(),
'FEINCMS_ADMIN_MEDIA': settings.FEINCMS_ADMIN_MEDIA,
'FEINCMS_ADMIN_MEDIA_HOTLINKING': settings.FEINCMS_ADMIN_MEDIA_HOTLINKING,
})
else:
form = ModelForm(instance=obj, prefix=content_type)
return render_to_response('admin/feincms/fe_editor.html', {
'frontend_editing': True,
'title': _('Change %s') % force_unicode(model_cls._meta.verbose_name),
'object': obj,
'form': form,
'is_popup': True,
'media': self.media,
'FEINCMS_ADMIN_MEDIA': settings.FEINCMS_ADMIN_MEDIA,
'FEINCMS_ADMIN_MEDIA_HOTLINKING': settings.FEINCMS_ADMIN_MEDIA_HOTLINKING,
}, context_instance=template.RequestContext(request,
processors=self.model.feincms_item_editor_context_processors))
def _get_inline_formset_types(self, request):
return [(
content_type,
inlineformset_factory(self.model, content_type, extra=1,
fk_name='parent', #added so multiple foreign keys are not a problem
form=getattr(content_type, 'feincms_item_editor_form', ItemEditorForm),
formfield_callback=self._formfield_callback(request=request))
) for content_type in self.model._feincms_content_types]
@csrf_protect_m
@transaction.commit_on_success
def add_view(self, request, extra_context=None, form_url=None):
opts = self.model._meta
if not self.has_add_permission(request):
raise PermissionDenied
ModelForm = self.get_form(request,
fields=None,
formfield_callback=self._formfield_callback(request=request),
form=self.form
)
inline_formset_types = self._get_inline_formset_types(request)
formsets = []
if request.method == 'POST':
model_form = ModelForm(request.POST, request.FILES)
if model_form.is_valid():
form_validated = True
new_object = self.save_form(request, model_form, change=False)
else:
form_validated = False
new_object = self.model()
inline_formsets = [
formset_class(request.POST, request.FILES, instance=new_object,
prefix=content_type.__name__.lower())
for content_type, formset_class in inline_formset_types]
prefixes = {}
for FormSet, inline in zip(self.get_formsets(request), self.inline_instances):
prefix = FormSet.get_default_prefix()
prefixes[prefix] = prefixes.get(prefix, 0) + 1
if prefixes[prefix] != 1:
prefix = "%s-%s" % (prefix, prefixes[prefix])
formset = FormSet(data=request.POST, files=request.FILES,
instance=new_object,
save_as_new=request.POST.has_key('_saveasnew'),
prefix=prefix, queryset=inline.queryset(request))
formsets.append(formset)
if all_valid(inline_formsets+formsets) and form_validated:
self.save_model(request, new_object, model_form, change=False)
model_form.save_m2m()
for formset in inline_formsets:
formset.save()
for formset in formsets:
self.save_formset(request, model_form, formset, change=False)
msg = _('The %(name)s "%(obj)s" was added successfully.') % {'name': force_unicode(opts.verbose_name), 'obj': force_unicode(new_object)}
if request.POST.has_key("_continue"):
self.message_user(request, msg + ' ' + _("You may edit it again below."))
return HttpResponseRedirect('../%s/' % new_object.pk)
elif request.POST.has_key('_addanother'):
self.message_user(request, msg + ' ' + (_("You may add another %s below.") % force_unicode(opts.verbose_name)))
return HttpResponseRedirect("../add/")
else:
self.message_user(request, msg)
return HttpResponseRedirect("../")
else:
initial = dict(request.GET.items())
model_form = ModelForm(initial=initial)
inline_formsets = [
formset_class(prefix=content_type.__name__.lower())
for content_type, formset_class in inline_formset_types]
prefixes = {}
for FormSet, inline in zip(self.get_formsets(request), self.inline_instances):
prefix = FormSet.get_default_prefix()
prefixes[prefix] = prefixes.get(prefix, 0) + 1
if prefixes[prefix] != 1:
prefix = "%s-%s" % (prefix, prefixes[prefix])
formset = FormSet(instance=self.model(),
prefix=prefix, queryset=inline.queryset(request))
formsets.append(formset)
# Prepare mapping of content types to their prettified names
content_types = []
for content_type in self.model._feincms_content_types:
content_name = content_type._meta.verbose_name
content_types.append((content_name, content_type.__name__.lower()))
context = {}
#media = self.media + model_form.media
adminForm = helpers.AdminForm(model_form, list(self.get_fieldsets(request)),
self.prepopulated_fields, self.get_readonly_fields(request),
model_admin=self)
media = self.media + adminForm.media
inline_admin_formsets = []
for inline, formset in zip(self.inline_instances, formsets):
fieldsets = list(inline.get_fieldsets(request))
inline_admin_formset = helpers.InlineAdminFormSet(inline, formset, fieldsets,
model_admin=self)
inline_admin_formsets.append(inline_admin_formset)
media = media + inline_admin_formset.media
if hasattr(self.model, '_feincms_templates'):
if 'template_key' not in self.show_on_top:
self.show_on_top = ['template_key'] + list(self.show_on_top)
context['available_templates'] = self.model._feincms_templates
if hasattr(self.model, 'parent'):
context['has_parent_attribute'] = True
context.update({
'has_add_permission': self.has_add_permission(request),
'has_change_permission': self.has_change_permission(request),
'has_delete_permission': self.has_delete_permission(request),
'add': True,
'change': False,
'title': _('Add %s') % force_unicode(opts.verbose_name),
'opts': opts,
'object': self.model(),
'object_form': model_form,
'adminform': adminForm,
'inline_formsets': inline_formsets,
'inline_admin_formsets': inline_admin_formsets,
'content_types': content_types,
'top_fields': [model_form[field] for field in self.show_on_top],
'settings_fields': [field for field in model_form if field.name not in self.show_on_top],
'media': media,
'errors': helpers.AdminErrorList(model_form, inline_formsets),
'FEINCMS_ADMIN_MEDIA': settings.FEINCMS_ADMIN_MEDIA,
'FEINCMS_ADMIN_MEDIA_HOTLINKING': settings.FEINCMS_ADMIN_MEDIA_HOTLINKING,
})
return self.render_item_editor(request, None, context)
@csrf_protect_m
@transaction.commit_on_success
def change_view(self, request, object_id, extra_context=None):
self.model._needs_content_types()
# Recognize frontend editing requests
# This is done here so that the developer does not need to add additional entries to
# urls.py or something...
res = FRONTEND_EDITING_MATCHER.search(object_id)
if res:
return self._frontend_editing_view(request, res.group(1), res.group(2), res.group(3))
opts = self.model._meta
try:
obj = self.model._default_manager.get(pk=unquote(object_id))
except self.model.DoesNotExist:
raise Http404
if not self.has_change_permission(request, obj):
raise PermissionDenied
if "revision" in request.GET:
from reversion.models import Revision
try:
revision = Revision.objects.get(pk=request.GET['revision'])
except Revision.DoesNotExist:
raise Http404
self.message_user(request, _('Click save to replace the current content with this version'))
else:
revision = None
ModelForm = self.get_form(
request,
obj,
# NOTE: Fields *MUST* be set to None to avoid breaking
# django.contrib.admin.option.ModelAdmin's default get_form()
# will generate a very abbreviated field list which will cause
# KeyErrors during clean() / save()
fields=None,
formfield_callback=self._formfield_callback(request=request),
form=self.form
)
# generate a formset type for every concrete content type
inline_formset_types = self._get_inline_formset_types(request)
formsets = []
if request.method == 'POST':
FORM_DATA = {}
model_form = ModelForm(request.POST, request.FILES, instance=obj)
inline_formsets = [
formset_class(request.POST, request.FILES, instance=obj,
prefix=content_type.__name__.lower())
for content_type, formset_class in inline_formset_types]
if model_form.is_valid():
form_validated = True
new_object = self.save_form(request, model_form, change=True)
else:
form_validated = False
new_object = obj
prefixes = {}
for FormSet in self.get_formsets(request, new_object):
prefix = FormSet.get_default_prefix()
prefixes[prefix] = prefixes.get(prefix, 0) + 1
if prefixes[prefix] != 1:
prefix = "%s-%s" % (prefix, prefixes[prefix])
formset = FormSet(request.POST, request.FILES,
instance=new_object, prefix=prefix)
formsets.append(formset)
if all_valid(inline_formsets+formsets) and form_validated:
#model_form.save(commit=False)
model_form.save_m2m()
for formset in inline_formsets:
formset.save()
#model_form.save(commit=True)
self.save_model(request, new_object, model_form, change=True)
for formset in formsets:
self.save_formset(request, model_form, formset, change=True)
msg = _('The %(name)s "%(obj)s" was changed successfully.') % {'name': force_unicode(opts.verbose_name), 'obj': force_unicode(obj)}
if request.POST.has_key("_continue"):
self.message_user(request, msg + ' ' + _("You may edit it again below."))
return HttpResponseRedirect('.')
elif request.POST.has_key('_addanother'):
self.message_user(request, msg + ' ' + (_("You may add another %s below.") % force_unicode(opts.verbose_name)))
return HttpResponseRedirect("../add/")
else:
self.message_user(request, msg)
return HttpResponseRedirect("../")
elif revision:
FORM_DATA = {}
total_forms = dict(
[(ct.__name__.lower(), 0) for ct in self.model._feincms_content_types]
)
for version in revision.version_set.all().select_related("content_type"):
if version.object_version.object == obj:
FORM_DATA.update(version.field_dict)
continue
version_prefix = "%s-%s" % (
version.content_type.model,
total_forms[version.content_type.model]
)
for k, v in version.field_dict.items():
form_key = "%s-%s" % (version_prefix, k)
assert form_key not in FORM_DATA
FORM_DATA[form_key] = v
# defaultdict would be cleaner but this works with Python 2.4:
total_forms[version.content_type.model] += 1
for k, v in total_forms.items():
FORM_DATA["%s-INITIAL_FORMS" % k] = v
# TOTAL FORMS should be one for each actual object and one for
# the "Add new" feature. We'll bump the total up if we actually
# have existing content:
if v:
FORM_DATA["%s-TOTAL_FORMS" % k] = v + 1
else:
FORM_DATA["%s-TOTAL_FORMS" % k] = 0
# BUG: This somehow does not correctly initialize the initial form for adding new content correctly
model_form = ModelForm(FORM_DATA, instance=obj)
inline_formsets = [
formset_class(FORM_DATA, instance=obj, prefix=content_type.__name__.lower())
for content_type, formset_class in inline_formset_types
]
prefixes = {}
for FormSet in self.get_formsets(request, obj):
prefix = FormSet.get_default_prefix()
prefixes[prefix] = prefixes.get(prefix, 0) + 1
if prefixes[prefix] != 1:
prefix = "%s-%s" % (prefix, prefixes[prefix])
formset = FormSet(instance=obj, prefix=prefix)
formsets.append(formset)
else:
model_form = ModelForm(instance=obj)
inline_formsets = [
formset_class(instance=obj, prefix=content_type.__name__.lower())
for content_type, formset_class in inline_formset_types
]
prefixes = {}
for FormSet in self.get_formsets(request, obj):
prefix = FormSet.get_default_prefix()
prefixes[prefix] = prefixes.get(prefix, 0) + 1
if prefixes[prefix] != 1:
prefix = "%s-%s" % (prefix, prefixes[prefix])
formset = FormSet(instance=obj, prefix=prefix)
formsets.append(formset)
# Prepare mapping of content types to their prettified names
content_types = []
for content_type in self.model._feincms_content_types:
content_name = content_type._meta.verbose_name
content_types.append((content_name, content_type.__name__.lower()))
context = {}
adminForm = helpers.AdminForm(model_form, self.get_fieldsets(request, obj),
self.prepopulated_fields, self.get_readonly_fields(request, obj),
model_admin=self)
media = self.media + adminForm.media
inline_admin_formsets = []
for inline, formset in zip(self.inline_instances, formsets):
fieldsets = list(inline.get_fieldsets(request, obj))
inline_admin_formset = helpers.InlineAdminFormSet(inline, formset, fieldsets)
inline_admin_formsets.append(inline_admin_formset)
media = media + inline_admin_formset.media
if hasattr(self.model, '_feincms_templates'):
if 'template_key' not in self.show_on_top:
self.show_on_top = ['template_key'] + list(self.show_on_top)
context['available_templates'] = self.model._feincms_templates
if hasattr(self.model, 'parent'):
context['has_parent_attribute'] = True
context.update({
'has_add_permission': self.has_add_permission(request),
'has_change_permission': self.has_change_permission(request, obj=obj),
'has_delete_permission': self.has_delete_permission(request, obj=obj),
'add': False,
'change': obj.pk is not None,
'title': _('Change %s') % force_unicode(opts.verbose_name),
'opts': opts,
'object': obj,
'object_form': model_form,
'adminform': adminForm,
'inline_formsets': inline_formsets,
'inline_admin_formsets': inline_admin_formsets,
'content_types': content_types,
'top_fields': [model_form[field] for field in self.show_on_top],
'settings_fields': [field for field in model_form if field.name not in self.show_on_top],
'media': media,
'errors': helpers.AdminErrorList(model_form, inline_formsets),
'FEINCMS_ADMIN_MEDIA': settings.FEINCMS_ADMIN_MEDIA,
'FEINCMS_ADMIN_MEDIA_HOTLINKING': settings.FEINCMS_ADMIN_MEDIA_HOTLINKING,
})
return self.render_item_editor(request, obj, context)
def render_item_editor(self, request, object, context):
opts = self.model._meta
return render_to_response([
'admin/feincms/%s/%s/item_editor.html' % (opts.app_label, opts.object_name.lower()),
'admin/feincms/%s/item_editor.html' % opts.app_label,
'admin/feincms/item_editor.html',
], context, context_instance=template.RequestContext(request,
processors=self.model.feincms_item_editor_context_processors))