from django.template import loader, RequestContext from django.http import Http404, HttpResponse from django.core.xheaders import populate_xheaders from django.core.paginator import QuerySetPaginator, InvalidPage from django.core.exceptions import ObjectDoesNotExist def object_list(request, queryset, paginate_by=None, page=None, allow_empty=True, template_name=None, template_loader=loader, extra_context=None, context_processors=None, template_object_name='object', mimetype=None): """ Generic list of objects. Templates: ``/_list.html`` Context: 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). """ if extra_context is None: extra_context = {} queryset = queryset._clone() if paginate_by: paginator = QuerySetPaginator(queryset, paginate_by, allow_empty_first_page=allow_empty) if not page: page = request.GET.get('page', 1) try: page_number = int(page) except ValueError: if page == 'last': page_number = paginator.num_pages else: # Page is not 'last', nor can it be converted to an int. raise Http404 try: page_obj = paginator.page(page_number) except InvalidPage: raise Http404 c = RequestContext(request, { '%s_list' % template_object_name: page_obj.object_list, 'paginator': paginator, 'page_obj': page_obj, # Legacy template context stuff. New templates should use page_obj # to access this instead. 'is_paginated': page_obj.has_other_pages(), 'results_per_page': paginator.per_page, 'has_next': page_obj.has_next(), 'has_previous': page_obj.has_previous(), 'page': page_obj.number, 'next': page_obj.next_page_number(), 'previous': page_obj.previous_page_number(), 'first_on_page': page_obj.start_index(), 'last_on_page': page_obj.end_index(), 'pages': paginator.num_pages, 'hits': paginator.count, 'page_range': paginator.page_range, }, context_processors) else: c = RequestContext(request, { '%s_list' % template_object_name: queryset, 'paginator': None, 'page_obj': None, 'is_paginated': False, }, context_processors) if not allow_empty and len(queryset) == 0: raise Http404 for key, value in extra_context.items(): if callable(value): c[key] = value() else: c[key] = value if not template_name: model = queryset.model template_name = "%s/%s_list.html" % (model._meta.app_label, model._meta.object_name.lower()) t = template_loader.get_template(template_name) return HttpResponse(t.render(c), mimetype=mimetype) def object_detail(request, queryset, object_id=None, slug=None, slug_field='slug', template_name=None, template_name_field=None, template_loader=loader, extra_context=None, context_processors=None, template_object_name='object', mimetype=None): """ Generic detail of an object. Templates: ``/_detail.html`` Context: object the object """ if extra_context is None: extra_context = {} model = queryset.model if object_id: queryset = queryset.filter(pk=object_id) elif slug and slug_field: queryset = queryset.filter(**{slug_field: slug}) else: raise AttributeError, "Generic detail view must be called with either an object_id or a slug/slug_field." try: obj = queryset.get() except ObjectDoesNotExist: raise Http404, "No %s found matching the query" % (model._meta.verbose_name) if not template_name: template_name = "%s/%s_detail.html" % (model._meta.app_label, model._meta.object_name.lower()) if template_name_field: template_name_list = [getattr(obj, template_name_field), template_name] t = template_loader.select_template(template_name_list) else: t = template_loader.get_template(template_name) c = RequestContext(request, { template_object_name: obj, }, context_processors) for key, value in extra_context.items(): if callable(value): c[key] = value() else: c[key] = value response = HttpResponse(t.render(c), mimetype=mimetype) populate_xheaders(request, response, model, getattr(obj, obj._meta.pk.name)) return response