X-Git-Url: http://git.ithinksw.org/philo.git/blobdiff_plain/0d51e8dc2b15ca84b8979b94a3224b4a33f7f25e..91801c950d2962cba8d831c63b698596d619dba9:/models.py diff --git a/models.py b/models.py index cb8ed07..6691aca 100644 --- a/models.py +++ b/models.py @@ -5,12 +5,11 @@ from django.contrib.contenttypes import generic from django.contrib.contenttypes.models import ContentType from django.db import models from django.contrib.sites.models import Site -import mptt from utils import fattr from django.template import add_to_builtins as register_templatetags from django.template import Template as DjangoTemplate from django.template import TemplateDoesNotExist -from django.template import Context +from django.template import Context, RequestContext from django.core.exceptions import ObjectDoesNotExist try: import json @@ -18,8 +17,10 @@ except ImportError: import simplejson as json from UserDict import DictMixin from templatetags.containers import ContainerNode -from django.template.loader_tags import ExtendsNode, ConstantIncludeNode, IncludeNode, BlockNode +from django.template.loader_tags import ExtendsNode, ConstantIncludeNode, IncludeNode from django.template.loader import get_template +from django.http import Http404, HttpResponse, HttpResponseServerError, HttpResponseRedirect +from django.core.servers.basehttp import FileWrapper def _ct_model_name(model): @@ -84,7 +85,7 @@ class QuerySetMapper(object, DictMixin): self.passthrough = passthrough def __getitem__(self, key): try: - return queryset.get(key__exact=key) + return self.queryset.get(key__exact=key).value except ObjectDoesNotExist: if self.passthrough: return self.passthrough.__getitem__(key) @@ -161,18 +162,33 @@ class TreeManager(models.Manager): def roots(self): return self.filter(parent__isnull=True) - def get_with_path(self, path, root=None, pathsep='/'): + def get_with_path(self, path, root=None, absolute_result=True, pathsep='/'): + """ + Returns the object with the path, or None if there is no object with that path, + unless absolute_result is set to False, in which case it returns a tuple containing + the deepest object found along the path, and the remainder of the path after that + object as a string (or None in the case that there is no remaining path). + """ slugs = path.split(pathsep) obj = root + remaining_slugs = list(slugs) + remainder = None for slug in slugs: + remaining_slugs.remove(slug) if slug: # ignore blank slugs, handles for multiple consecutive pathseps try: obj = self.get(slug__exact=slug, parent__exact=obj) except self.model.DoesNotExist: - obj = None + if absolute_result: + obj = None + remaining_slugs.insert(0, slug) + remainder = pathsep.join(remaining_slugs) break if obj: - return obj + if absolute_result: + return obj + else: + return (obj, remainder) raise self.model.DoesNotExist('%s matching query does not exist.' % self.model._meta.object_name) @@ -202,18 +218,81 @@ class TreeEntity(TreeModel, Entity): def attributes(self): if self.parent: return QuerySetMapper(self.attribute_set, passthrough=self.parent.attributes) - return super(Entity, self).attributes() + return super(TreeEntity, self).attributes @property def relationships(self): if self.parent: return QuerySetMapper(self.relationship_set, passthrough=self.parent.relationships) - return super(Entity, self).relationships() + return super(TreeEntity, self).relationships + + class Meta: + abstract = True + + +class Node(TreeEntity): + instance_type = models.ForeignKey(ContentType, editable=False) + + def save(self, force_insert=False, force_update=False): + if not hasattr(self, 'instance_type_ptr'): + self.instance_type = ContentType.objects.get_for_model(self.__class__) + super(Node, self).save(force_insert, force_update) + + @property + def instance(self): + return self.instance_type.get_object_for_this_type(id=self.id) + + accepts_subpath = False + + def render_to_response(self, request, path=None, subpath=None): + return HttpResponseServerError() + + +class MultiNode(Node): + accepts_subpath = True + + @property + def urlpatterns(self): + return [] + + def render_to_response(self, request, path=None, subpath=None): + if not subpath: + subpath = "" + subpath = "/" + subpath + from django.core.urlresolvers import resolve + view, args, kwargs = resolve(subpath, urlconf=self) + return view(request, *args, **kwargs) class Meta: abstract = True +class Redirect(Node): + STATUS_CODES = ( + (302, 'Temporary'), + (301, 'Permanent'), + ) + target = models.URLField() + status_code = models.IntegerField(choices=STATUS_CODES, default=302, verbose_name='redirect type') + + def render_to_response(self, request, path=None, subpath=None): + response = HttpResponseRedirect(self.target) + response.status_code = self.status_code + return response + + +class File(Node): + """ For storing arbitrary files """ + mimetype = models.CharField(max_length=255) + file = models.FileField(upload_to='philo/files/%Y/%m/%d') + + def render_to_response(self, request, path=None, subpath=None): + wrapper = FileWrapper(self.file) + response = HttpResponse(wrapper, content_type=self.mimetype) + response['Content-Length'] = self.file.size + return response + + class Template(TreeModel): name = models.CharField(max_length=255) documentation = models.TextField(null=True, blank=True) @@ -240,10 +319,12 @@ class Template(TreeModel): names = [] for node in nodelist: try: + for nodelist_name in ('nodelist', 'nodelist_loop', 'nodelist_empty', 'nodelist_true', 'nodelist_false'): + if hasattr(node, nodelist_name): + names.extend(nodelist_container_node_names(getattr(node, nodelist_name))) if isinstance(node, ContainerNode): names.append(node.name) elif isinstance(node, ExtendsNode): - names.extend(nodelist_container_node_names(node.nodelist)) extended_template = node.get_parent(Context()) if extended_template: names.extend(container_node_names(extended_template)) @@ -255,8 +336,6 @@ class Template(TreeModel): included_template = get_template(node.template_name.resolve(Context())) if included_template: names.extend(container_node_names(included_template)) - elif isinstance(node, BlockNode): - names.extend(nodelist_container_node_names(node.nodelist)) except: pass # fail for this node return names @@ -274,20 +353,21 @@ class Template(TreeModel): except Template.DoesNotExist: raise TemplateDoesNotExist(template_name) return (template.code, template.origin) -mptt.register(Template) -class Page(TreeEntity): +class Page(Node): template = models.ForeignKey(Template, related_name='pages') title = models.CharField(max_length=255) + def render_to_response(self, request, path=None, subpath=None): + return HttpResponse(self.template.django_template.render(RequestContext(request, {'page': self})), mimetype=self.template.mimetype) + def __unicode__(self): return self.get_path(u' › ', 'title') -mptt.register(Page) -# the following line enables the selection of a page as the root for a given django.contrib.sites Site object -models.ForeignKey(Page, related_name='sites', null=True, blank=True).contribute_to_class(Site, 'root_page') +# the following line enables the selection of a node as the root for a given django.contrib.sites Site object +models.ForeignKey(Node, related_name='sites', null=True, blank=True).contribute_to_class(Site, 'root_node') class Contentlet(models.Model):