from templatetags.containers import ContainerNode
from django.template.loader_tags import ExtendsNode, ConstantIncludeNode, IncludeNode
from django.template.loader import get_template
-from django.http import HttpResponse, HttpResponseServerError, HttpResponseRedirect
+from django.http import Http404, HttpResponse, HttpResponseServerError, HttpResponseRedirect
from django.core.servers.basehttp import FileWrapper
-def _ct_model_name(model):
- opts = model._meta
- while opts.proxy:
- model = opts.proxy_for_model
- opts = model._meta
- return opts.object_name.lower()
+def register_value_model(model):
+ pass
+
+
+def unregister_value_model(model):
+ pass
class Attribute(models.Model):
key = models.CharField(max_length=255)
json_value = models.TextField(verbose_name='Value (JSON)', help_text='This value must be valid JSON.')
- @property
- def value(self):
+ def get_value(self):
return json.loads(self.json_value)
+ def set_value(self, value):
+ self.json_value = json.dumps(value)
+
+ def delete_value(self):
+ self.json_value = json.dumps(None)
+
+ value = property(get_value, set_value, delete_value)
+
def __unicode__(self):
return u'"%s": %s' % (self.key, self.value)
class Relationship(models.Model):
- _value_models = []
-
- @staticmethod
- def register_value_model(model):
- if issubclass(model, models.Model):
- model_name = _ct_model_name(model)
- if model_name not in Relationship._value_models:
- Relationship._value_models.append(model_name)
- else:
- raise TypeError('Relationship.register_value_model only accepts subclasses of django.db.models.Model')
-
- @staticmethod
- def unregister_value_model(model):
- if issubclass(model, models.Model):
- model_name = _ct_model_name(model)
- if model_name in Relationship._value_models:
- Relationship._value_models.remove(model_name)
- else:
- raise TypeError('Relationship.unregister_value_model only accepts subclasses of django.db.models.Model')
-
entity_content_type = models.ForeignKey(ContentType, related_name='relationship_entity_set', verbose_name='Entity type')
entity_object_id = models.PositiveIntegerField(verbose_name='Entity ID')
entity = generic.GenericForeignKey('entity_content_type', 'entity_object_id')
key = models.CharField(max_length=255)
- value_content_type = models.ForeignKey(ContentType, related_name='relationship_value_set', limit_choices_to={'model__in':_value_models}, verbose_name='Value type')
+ value_content_type = models.ForeignKey(ContentType, related_name='relationship_value_set', verbose_name='Value type')
value_object_id = models.PositiveIntegerField(verbose_name='Value ID')
value = generic.GenericForeignKey('value_content_type', 'value_object_id')
description = models.TextField(blank=True, null=True)
+class CollectionMemberManager(models.Manager):
+ use_for_related_fields = True
+
+ def with_model(self, model):
+ return model._default_manager.filter(pk__in=self.filter(member_content_type=ContentType.objects.get_for_model(model)).values_list('member_object_id', flat=True))
+
+
class CollectionMember(models.Model):
- _value_models = []
-
- @staticmethod
- def register_value_model(model):
- if issubclass(model, models.Model):
- model_name = _ct_model_name(model)
- if model_name not in CollectionMember._value_models:
- CollectionMember._value_models.append(model_name)
- else:
- raise TypeError('CollectionMember.register_value_model only accepts subclasses of django.db.models.Model')
-
- @staticmethod
- def unregister_value_model(model):
- if issubclass(model, models.Model):
- model_name = _ct_model_name(model)
- if model_name in CollectionMember._value_models:
- CollectionMember._value_models.remove(model_name)
- else:
- raise TypeError('CollectionMember.unregister_value_model only accepts subclasses of django.db.models.Model')
-
+ objects = CollectionMemberManager()
collection = models.ForeignKey(Collection, related_name='members')
index = models.PositiveIntegerField(verbose_name='Index', help_text='This will determine the ordering of the item within the collection. (Optional)', null=True, blank=True)
- member_content_type = models.ForeignKey(ContentType, limit_choices_to={'model__in':_value_models}, verbose_name='Member type')
+ member_content_type = models.ForeignKey(ContentType, verbose_name='Member type')
member_object_id = models.PositiveIntegerField(verbose_name='Member ID')
member = generic.GenericForeignKey('member_content_type', 'member_object_id')
-def register_value_model(model):
- Relationship.register_value_model(model)
- CollectionMember.register_value_model(model)
-
-
-def unregister_value_model(model):
- Relationship.unregister_value_model(model)
- CollectionMember.unregister_value_model(model)
-
-
class TreeManager(models.Manager):
use_for_related_fields = True
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)
class Node(TreeEntity):
instance_type = models.ForeignKey(ContentType, editable=False)
+ def get_path(self, pathsep='/', field='slug'):
+ path = getattr(self.instance, field)
+ parent = self.parent
+ while parent:
+ path = getattr(parent.instance, field) + pathsep + path
+ parent = parent.parent
+ return path
+ path = property(get_path)
+
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__)
return HttpResponseServerError()
+class MultiNode(Node):
+ accepts_subpath = True
+
+ urlpatterns = []
+
+ 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")
+ 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)