Merge branch 'master' into penfield

[philo.git] / models.py

diff --git a/models.py b/models.py
index 4eb50f7..ecd1c1f 100644 (file)
--- a/models.py
+++ b/models.py
@@ -5,30 +5,28 @@ 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
 from django.contrib.contenttypes.models import ContentType
 from django.db import models
 from django.contrib.sites.models import Site

-from utils import fattr
+from philo.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, RequestContext
 from django.core.exceptions import ObjectDoesNotExist
 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, RequestContext
 from django.core.exceptions import ObjectDoesNotExist

-try:
-       import json
-except ImportError:
-       import simplejson as json
+from django.utils import simplejson as json

 from UserDict import DictMixin
 from UserDict import DictMixin

-from templatetags.containers import ContainerNode
+from philo.templatetags.containers import ContainerNode

 from django.template.loader_tags import ExtendsNode, ConstantIncludeNode, IncludeNode
 from django.template.loader import get_template
 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
 from django.core.servers.basehttp import FileWrapper

+from django.conf import settings

 
 
 
 

-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):
 
 
 class Attribute(models.Model):


@@ -38,40 +36,27 @@ 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.')
        
        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)
        
                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):
        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)
        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')
        
        value_object_id = models.PositiveIntegerField(verbose_name='Value ID')
        value = generic.GenericForeignKey('value_content_type', 'value_object_id')
        


@@ -118,62 +103,55 @@ class Collection(models.Model):
        description = models.TextField(blank=True, null=True)
 
 
        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):
 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)
        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')
 
 
        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)
        
 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
                slugs = path.split(pathsep)
                obj = root

+               remaining_slugs = list(slugs)
+               remainder = None

                for slug in slugs:
                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:
                        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:
                                        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)
 
 
                raise self.model.DoesNotExist('%s matching query does not exist.' % self.model._meta.object_name)
 
 


@@ -183,10 +161,10 @@ class TreeModel(models.Model):
        slug = models.SlugField()
        
        def get_path(self, pathsep='/', field='slug'):
        slug = models.SlugField()
        
        def get_path(self, pathsep='/', field='slug'):

-               path = getattr(self, field)
+               path = getattr(self, field, '?')

                parent = self.parent
                while parent:
                parent = self.parent
                while parent:

-                       path = getattr(parent, field) + pathsep + path
+                       path = getattr(parent, field, '?') + pathsep + path

                        parent = parent.parent
                return path
        path = property(get_path)
                        parent = parent.parent
                return path
        path = property(get_path)


@@ -215,31 +193,74 @@ class TreeEntity(TreeModel, Entity):
                abstract = True
 
 
                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__)
        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)
+               super(InheritableTreeEntity, self).save(force_insert, force_update)

        
        @property
        def instance(self):
                return self.instance_type.get_object_for_this_type(id=self.id)
        
        
        @property
        def instance(self):
                return self.instance_type.get_object_for_this_type(id=self.id)
        

+       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)
+       
+       @property
+       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()
 
 
        accepts_subpath = False
        
        def render_to_response(self, request, path=None, subpath=None):
                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'),
        )
 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")
+       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):
                response = HttpResponseRedirect(self.target)
        
        def render_to_response(self, request, path=None, subpath=None):
                response = HttpResponseRedirect(self.target)


@@ -262,8 +283,8 @@ class File(Node):
 class Template(TreeModel):
        name = models.CharField(max_length=255)
        documentation = models.TextField(null=True, blank=True)
 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 origin(self):


@@ -276,37 +297,46 @@ class Template(TreeModel):
        @property
        def containers(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.
                """
                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 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):
                                                        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):
                                                if isinstance(node, ContainerNode):

-                                                       names.append(node.name)
+                                                       nodes.append(node)

                                                elif isinstance(node, ExtendsNode):
                                                        extended_template = node.get_parent(Context())
                                                        if extended_template:
                                                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:
                                                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:
                                                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
                                        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')
        
        def __unicode__(self):
                return self.get_path(u' › ', 'name')


@@ -322,6 +352,11 @@ class Template(TreeModel):
 
 
 class Page(Node):
 
 
 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)
        
        template = models.ForeignKey(Template, related_name='pages')
        title = models.CharField(max_length=255)
        


@@ -343,6 +378,14 @@ class Contentlet(models.Model):
        dynamic = models.BooleanField(default=False)
 
 
        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')
 
 
 register_templatetags('philo.templatetags.containers')