def get_models(request):
models = []
for model_cls in connected_models():
opts = model_cls._meta
url = urlresolvers.reverse('admin:%s_%s_add' % (opts.app_label, opts.module_name))
models.append({'app_label': opts.app_label, 'model_name': unicode(opts.verbose_name), 'url': url})
return models
def render_tag(self, context, instance, children_type, varname):
# if instance is not None:
if instance == 'root':
treeitem = None
elif instance == 'guess':
# try to guess
treeitem = get_treeitem_from_context(context)
elif instance is None:
treeitem = None
else:
if isinstance(instance, TreeItem):
treeitem = instance
else:
try:
treeitem = instance.tree.get()
except AttributeError:
raise TemplateSyntaxError('Instance argument must have `tree` attribute')
if children_type:
ModelClass = None
for model_cls in connected_models():
if model_cls._meta.module_name == children_type:
ModelClass = model_cls
if ModelClass is not None:
model_filter = get_q_filters()[ModelClass]
if model_filter is not None:
queryset = ModelClass.objects.filter(model_filter)
else:
queryset = ModelClass.objects.all()
allowed_ids = TreeItem.objects.published().filter(parent=treeitem,
content_type__model=children_type).values_list('object_id', flat=True)
queryset = queryset.filter(id__in=allowed_ids)
else:
# Empty
queryset = []
else:
queryset = TreeItem.objects.published().filter(parent=treeitem)
if varname:
context[varname] = queryset
return u''
else:
self.templates[0:0] = ['%s/children_tag.html' % app_name for app_name in get_data_appnames()]
context['children_queryset'] = children_qs
return render_to_string(self.templates, context)
def __init__(self, site):
'''
Creates column model singletone.
Reads data from django models loader and given site registry
'''
self.model_cache = loading.cache
self.admin_registry = site._registry
self.fields = {}
for model_cls in connected_models():
admin_cls = self.admin_registry[model_cls]
list_display = list(admin_cls.list_display)
list_display.remove('action_checkbox')
# Run over all 'list_display' properties and fill columns
for i, field_name in enumerate(list_display):
new_field = Column(field_name, model_cls, admin_cls, i)
if field_name not in self.fields:
self.fields[field_name] = new_field
else:
self.fields[field_name].merge(new_field)
self.content_object.delete()
super(TreeItem, self).delete(*args, **kwds)
delete.alters_data = True
def insert_in_tree(sender, instance, **kwrgs):
'''
Insert newly created object in catalog tree.
If no parent provided, insert object in tree root
'''
# to avoid recursion save, process only for new instances
created = kwrgs.pop('created', False)
if created:
parent = getattr(instance, 'parent', None)
if parent is None:
tree_item = TreeItem(parent=None, content_object=instance)
else:
tree_item = TreeItem(parent=parent, content_object=instance)
tree_item.save()
instance.save()
for model_cls in connected_models():
if model_cls is None:
import warnings
warnings.warn('Can not import model %s from app %s, check CATALOG_MODELS setting, **YOU MAY LOSE DATA!**' % (model_cls.__name__, model_cls._meta.app_label))
# set post_save signals on connected objects:
# for each connected model connect
# automatic TreeItem creation for catalog models
post_save.connect(insert_in_tree, model_cls)
def item_view(request, model, slug=None, object_id=None):
'''
Render catalog page for object
Url variables:
model:
mdoel name
slug:
object's slug
object_id
object's id
Required at least one of ``slug`` or ``object_id`` parameters
Templates:
'catalog/<app_label>/<model_name>.html'
'catalog/<model_name>.html'
'<app_label>/<model_name>_in_catalog.html'
'catalog/treeitem.html',
Context taken from ``object_list`` method from ``django.views.generic.list_detail``:
object_list
list of objects
is_paginated
are the results paginated?
results_per_page
number of objects per page (if paginated)
has_next
is there a next page?
has_previous
is there a prev page?
page
the current page
next
the next page
previous
the previous page
pages
number of pages, total
hits
number of objects, total
last_on_page
the result number of the last of object in the
object_list (1-indexed)
first_on_page
the result number of the first object in the
object_list (1-indexed)
page_range:
A list of the page numbers (1-indexed).
'''
ModelClass = None
for model_cls in connected_models():
if model_cls._meta.module_name == model:
ModelClass = model_cls
if ModelClass is not None:
model_filter = get_q_filters()[ModelClass]
if model_filter is not None:
model_queryset = ModelClass.objects.filter(model_filter)
else:
model_queryset = ModelClass.objects.all()
# select template
try:
opts = ModelClass._meta
t = loader.select_template([
'catalog/%s/%s.html' % (opts.app_label, opts.module_name),
'catalog/%s.html' % opts.module_name,
'%s/%s_in_catalog.html' % (opts.app_label, opts.module_name),
'catalog/treeitem.html',
])
extra_context = {
'template_name': t.name,
}
except loader.TemplateDoesNotExist:
pass
if slug is not None:
return object_detail(request, model_queryset, slug=slug, **extra_context)
elif id is not None:
return object_detail(request, model_queryset, object_id=object_id, **extra_context)
else:
return HttpResponseNotFound(_('No object data specified'))
else:
return HttpResponseNotFound(_('Model %s does not registered' % model))
