from django import models from django.core import template_loader from django.utils.httpwrappers import HttpResponse from django.core.xheaders import populate_xheaders from django.core.extensions import DjangoContext as Context from django.core.paginator import ObjectPaginator, InvalidPage from django.core.exceptions import Http404, ObjectDoesNotExist def object_list(request, app_label, module_name, paginate_by=None, allow_empty=False, template_name=None, extra_lookup_kwargs={}, extra_context={}): """ Generic list of objects. Templates: ``/_list`` 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 """ mod = models.get_module(app_label, module_name) lookup_kwargs = extra_lookup_kwargs.copy() if paginate_by: paginator = ObjectPaginator(mod, lookup_kwargs, paginate_by) page = request.GET.get('page', 0) try: object_list = paginator.get_page(page) except InvalidPage: if page == 0 and allow_empty: object_list = [] else: raise Http404 page = int(page) c = Context(request, { 'object_list': object_list, 'is_paginated': True, 'results_per_page': paginate_by, 'has_next': paginator.has_next_page(page), 'has_previous': paginator.has_previous_page(page), 'page': page + 1, 'next': page + 1, 'previous': page - 1, 'pages': paginator.pages, }) else: object_list = mod.get_list(**lookup_kwargs) c = Context(request, { 'object_list': object_list, 'is_paginated': False }) if len(object_list) == 0 and not allow_empty: raise Http404 for key, value in extra_context.items(): if callable(value): c[key] = value() else: c[key] = value if not template_name: template_name = "%s/%s_list" % (app_label, module_name) t = template_loader.get_template(template_name) return HttpResponse(t.render(c)) def object_detail(request, app_label, module_name, object_id=None, slug=None, slug_field=None, template_name=None, template_name_field=None, extra_lookup_kwargs={}, extra_context={}): """ Generic list of objects. Templates: ``/_detail`` Context: object the object """ mod = models.get_module(app_label, module_name) lookup_kwargs = {} if object_id: lookup_kwargs['pk'] = object_id elif slug and slug_field: lookup_kwargs['%s__exact' % slug_field] = slug else: raise AttributeError("Generic detail view must be called with either an object_id or a slug/slug_field") lookup_kwargs.update(extra_lookup_kwargs) try: object = mod.get_object(**lookup_kwargs) except ObjectDoesNotExist: raise Http404("%s.%s does not exist for %s" % (app_label, module_name, lookup_kwargs)) if not template_name: template_name = "%s/%s_detail" % (app_label, module_name) if template_name_field: template_name_list = [getattr(object, template_name_field), template_name] t = template_loader.select_template(template_name_list) else: t = template_loader.get_template(template_name) c = Context(request, { 'object': object, }) for key, value in extra_context.items(): if callable(value): c[key] = value() else: c[key] = value response = HttpResponse(t.render(c)) populate_xheaders(request, response, app_label, module_name, getattr(object, object._meta.pk.name)) return response