from django.template import Template as DjangoTemplate
from django.template import TemplateDoesNotExist
from django.template import Context, RequestContext
-from django.core.exceptions import ObjectDoesNotExist
+from django.core.exceptions import ObjectDoesNotExist, ValidationError
try:
import json
except ImportError:
from django.template.loader import get_template
from django.http import Http404, HttpResponse, HttpResponseServerError, HttpResponseRedirect
from django.core.servers.basehttp import FileWrapper
+from django.conf import settings
def register_value_model(model):
return (obj, remainder)
raise self.model.DoesNotExist('%s matching query does not exist.' % self.model._meta.object_name)
-
class TreeModel(models.Model):
objects = TreeManager()
parent = models.ForeignKey('self', related_name='children', null=True, blank=True)
path = getattr(self, field, '?')
parent = self.parent
while parent:
+ self.validate_parent(parent)
path = getattr(parent, field, '?') + pathsep + path
parent = parent.parent
return path
class Meta:
abstract = True
+
+ def validate_parents(self, parent=None):
+ if parent == None:
+ parent = self.parent
+
+ while parent:
+ try:
+ self.validate_parent(parent)
+ parent = parent.parent
+ except ObjectDoesNotExist:
+ return # because it likely means the child doesn't exist
+
+ def validate_parent(self, parent):
+ #Why doesn't this stop the Admin site from saving a model with itself as parent?
+ if self == parent:
+ raise ValidationError("A %s can't be its own parent." % self.__class__.__name__)
+
+ def clean(self):
+ super(TreeModel, self).clean()
+ self.validate_parents()
+
+ def save(self, *args, **kwargs):
+ self.clean()
+ super(TreeModel, self).save(*args, **kwargs)
class TreeEntity(TreeModel, Entity):
abstract = True
-class Node(TreeEntity):
+class InheritableTreeEntity(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(InheritableTreeEntity, self).save(force_insert, force_update)
+
+ @property
+ def instance(self):
+ return self.instance_type.get_object_for_this_type(id=self.id)
+
+ def validate_parent(self, parent):
+ if self.instance == parent.instance:
+ raise ValidationError("A %s can't be its own parent." % self.__class__.__name__)
+
def get_path(self, pathsep='/', field='slug'):
path = getattr(self.instance, field, '?')
parent = self.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__)
- super(Node, self).save(force_insert, force_update)
-
@property
- def instance(self):
- return self.instance_type.get_object_for_this_type(id=self.id)
+ def attributes(self):
+ if self.parent:
+ return QuerySetMapper(self.instance.attribute_set, passthrough=self.parent.instance.attributes)
+ return QuerySetMapper(self.instance.attribute_set)
+
+ @property
+ def relationships(self):
+ if self.parent:
+ return QuerySetMapper(self.instance.relationship_set, passthrough=self.parent.instance.relationships)
+ return QuerySetMapper(self.instance.relationship_set)
+ class Meta:
+ abstract = True
+
+
+class Node(InheritableTreeEntity):
accepts_subpath = False
def render_to_response(self, request, path=None, subpath=None):
return HttpResponseServerError()
+
+ class Meta:
+ unique_together=(('parent', 'slug',),)
class MultiNode(Node):
(302, 'Temporary'),
(301, 'Permanent'),
)
- target = models.URLField()
+ target = models.URLField(help_text='Must be a valid, absolute URL (i.e. http://)')
status_code = models.IntegerField(choices=STATUS_CODES, default=302, verbose_name='redirect type')
def render_to_response(self, request, path=None, subpath=None):
class Template(TreeModel):
name = models.CharField(max_length=255)
documentation = models.TextField(null=True, blank=True)
- mimetype = models.CharField(max_length=255, null=True, blank=True)
- code = models.TextField()
+ mimetype = models.CharField(max_length=255, null=True, blank=True, help_text='Default: %s' % settings.DEFAULT_CONTENT_TYPE)
+ code = models.TextField(verbose_name='django template code')
@property
def origin(self):
@property
def containers(self):
"""
- Returns a list of names of contentlets referenced by containers.
+ Returns a tuple where the first item is a list of names of contentlets referenced by containers,
+ and the second item is a list of tuples of names and contenttypes of contentreferences referenced by containers.
This will break if there is a recursive extends or includes in the template code.
Due to the use of an empty Context, any extends or include tags with dynamic arguments probably won't work.
"""
- def container_node_names(template):
- def nodelist_container_node_names(nodelist):
- names = []
+ def container_nodes(template):
+ def nodelist_container_nodes(nodelist):
+ nodes = []
for node in nodelist:
try:
- for nodelist_name in ('nodelist', 'nodelist_loop', 'nodelist_empty', 'nodelist_true', 'nodelist_false'):
+ for nodelist_name in ('nodelist', 'nodelist_loop', 'nodelist_empty', 'nodelist_true', 'nodelist_false', 'nodelist_main'):
if hasattr(node, nodelist_name):
- names.extend(nodelist_container_node_names(getattr(node, nodelist_name)))
+ nodes.extend(nodelist_container_nodes(getattr(node, nodelist_name)))
if isinstance(node, ContainerNode):
- names.append(node.name)
+ nodes.append(node)
elif isinstance(node, ExtendsNode):
extended_template = node.get_parent(Context())
if extended_template:
- names.extend(container_node_names(extended_template))
+ nodes.extend(container_nodes(extended_template))
elif isinstance(node, ConstantIncludeNode):
included_template = node.template
if included_template:
- names.extend(container_node_names(included_template))
+ nodes.extend(container_nodes(included_template))
elif isinstance(node, IncludeNode):
included_template = get_template(node.template_name.resolve(Context()))
if included_template:
- names.extend(container_node_names(included_template))
+ nodes.extend(container_nodes(included_template))
except:
pass # fail for this node
- return names
- return nodelist_container_node_names(template.nodelist)
- return set(container_node_names(self.django_template))
+ return nodes
+ return nodelist_container_nodes(template.nodelist)
+ all_nodes = container_nodes(self.django_template)
+ contentlet_node_names = set([node.name for node in all_nodes if not node.references])
+ contentreference_node_names = []
+ contentreference_node_specs = []
+ for node in all_nodes:
+ if node.references and node.name not in contentreference_node_names:
+ contentreference_node_specs.append((node.name, node.references))
+ contentreference_node_names.append(node.name)
+ return contentlet_node_names, contentreference_node_specs
def __unicode__(self):
return self.get_path(u' › ', 'name')
class Page(Node):
+ """
+ Represents an HTML page. The page will have a number of related Contentlets depending on the template selected - but these will appear only after the page has been saved with that template.
+ """
template = models.ForeignKey(Template, related_name='pages')
title = models.CharField(max_length=255)
dynamic = models.BooleanField(default=False)
+class ContentReference(models.Model):
+ page = models.ForeignKey(Page, related_name='contentreferences')
+ name = models.CharField(max_length=255)
+ content_type = models.ForeignKey(ContentType, verbose_name='Content type')
+ content_id = models.PositiveIntegerField(verbose_name='Content ID')
+ content = generic.GenericForeignKey('content_type', 'content_id')
+
+
register_templatetags('philo.templatetags.containers')
git.ithinksw.org / philo.git / blobdiff