Fixed null content reference id bug.

[philo.git] / models.py

diff --git a/models.py b/models.py
index ecd1c1f..f866ee6 100644 (file)
--- a/models.py
+++ b/models.py
@@ -101,6 +101,13 @@ class Entity(models.Model):
 class Collection(models.Model):
        name = models.CharField(max_length=255)
        description = models.TextField(blank=True, null=True)
+       
+       @fattr(short_description='Members')
+       def get_count(self):
+               return self.members.count()
+       
+       def __unicode__(self):
+               return self.name
 
 
 class CollectionMemberManager(models.Manager):
@@ -117,6 +124,9 @@ class CollectionMember(models.Model):
        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 __unicode__(self):
+               return u'%s - %s' % (self.collection, self.member)
 
 
 class TreeManager(models.Manager):
@@ -203,7 +213,10 @@ class InheritableTreeEntity(TreeEntity):
        
        @property
        def instance(self):
-               return self.instance_type.get_object_for_this_type(id=self.id)
+               try:
+                       return self.instance_type.get_object_for_this_type(id=self.id)
+               except:
+                       return None
        
        def get_path(self, pathsep='/', field='slug'):
                path = getattr(self.instance, field, '?')
@@ -235,6 +248,9 @@ class Node(InheritableTreeEntity):
        
        def render_to_response(self, request, path=None, subpath=None):
                return HttpResponseServerError()
+               
+       class Meta:
+               unique_together = (('parent', 'slug'),)
 
 
 class MultiNode(Node):
@@ -278,6 +294,9 @@ class File(Node):
                response = HttpResponse(wrapper, content_type=self.mimetype)
                response['Content-Length'] = self.file.size
                return response
+       
+       def __unicode__(self):
+               return self.file
 
 
 class Template(TreeModel):
@@ -353,9 +372,7 @@ class Template(TreeModel):
 
 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.
+       Represents a page - something which is rendered according to a template. 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)
@@ -376,14 +393,20 @@ class Contentlet(models.Model):
        name = models.CharField(max_length=255)
        content = models.TextField()
        dynamic = models.BooleanField(default=False)
+       
+       def __unicode__(self):
+               return self.name
 
 
 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_id = models.PositiveIntegerField(verbose_name='Content ID', blank=True, null=True)
        content = generic.GenericForeignKey('content_type', 'content_id')
+       
+       def __unicode__(self):
+               return self.name
 
 
 register_templatetags('philo.templatetags.containers')