X-Git-Url: http://git.ithinksw.org/philo.git/blobdiff_plain/72849b1c135de8c0ad14d2ca881a98fdea279859..834e27b62ba09014f91feabe89da08adb472ce9e:/templatetags/embed.py

diff --git a/templatetags/embed.py b/templatetags/embed.py
index 901e163..eb4cd68 100644
--- a/templatetags/embed.py
+++ b/templatetags/embed.py
@@ -65,6 +65,9 @@ def get_embed_dict(embed_list, context):
 	embeds = {}
 	for e in embed_list:
 		ct = e.get_content_type(context)
+		if ct is None:
+			# Then the embed doesn't exist for this context.
+			continue
 		if ct not in embeds:
 			embeds[ct] = [e]
 		else:
@@ -143,7 +146,6 @@ class ConstantEmbedNode(template.Node):
 			self.template = None
 	
 	def compile_instance(self, object_pk):
-		self.object_pk = object_pk
 		model = self.content_type.model_class()
 		try:
 			return model.objects.get(pk=object_pk)
@@ -207,17 +209,13 @@ class ConstantEmbedNode(template.Node):
 		try:
 			t = context.render_context[EMBED_CONTEXT_KEY].get_embed_template(self, context)
 		except (KeyError, IndexError):
-			if settings.TEMPLATE_DEBUG:
-				raise
 			self.mark_rendered_for(context)
 			return settings.TEMPLATE_STRING_IF_INVALID
 		
 		context.push()
 		context['embedded'] = instance
-		kwargs = {}
 		for k, v in self.kwargs.items():
-			kwargs[k] = v.resolve(context)
-		context.update(kwargs)
+			context[k] = v.resolve(context)
 		t_rendered = t.render(context)
 		context.pop()
 		self.mark_rendered_for(context)
@@ -263,7 +261,10 @@ class InstanceEmbedNode(EmbedNode):
 		return self.instance.resolve(context)
 	
 	def get_content_type(self, context):
-		return ContentType.objects.get_for_model(self.get_instance(context))
+		instance = self.get_instance(context)
+		if not instance:
+			return None
+		return ContentType.objects.get_for_model(instance)
 
 
 def get_embedded(self):
@@ -273,15 +274,15 @@ def get_embedded(self):
 setattr(ConstantEmbedNode, LOADED_TEMPLATE_ATTR, property(get_embedded))
 
 
-def get_content_type(bit):
+def parse_content_type(bit, tagname):
 	try:
 		app_label, model = bit.split('.')
 	except ValueError:
-		raise template.TemplateSyntaxError('"%s" template tag expects the first argument to be of the form app_label.model' % tag)
+		raise template.TemplateSyntaxError('"%s" template tag expects the first argument to be of the form app_label.model' % tagname)
 	try:
 		ct = ContentType.objects.get(app_label=app_label, model=model)
 	except ContentType.DoesNotExist:
-		raise template.TemplateSyntaxError('"%s" template tag requires an argument of the form app_label.model which refers to an installed content type (see django.contrib.contenttypes)' % tag)
+		raise template.TemplateSyntaxError('"%s" template tag requires an argument of the form app_label.model which refers to an installed content type (see django.contrib.contenttypes)' % tagname)
 	return ct
 
 
@@ -298,7 +299,7 @@ def do_embed(parser, token):
 		raise template.TemplateSyntaxError('"%s" template tag must have at least two arguments.' % tag)
 	
 	if len(bits) == 3 and bits[-2] == 'with':
-		ct = get_content_type(bits[0])
+		ct = parse_content_type(bits[0], tag)
 		
 		if bits[2][0] in ['"', "'"] and bits[2][0] == bits[2][-1]:
 			return ConstantEmbedNode(ct, template_name=bits[2])
@@ -321,7 +322,7 @@ def do_embed(parser, token):
 		return InstanceEmbedNode(instance, kwargs)
 	elif len(bits) > 2:
 		raise template.TemplateSyntaxError('"%s" template tag expects at most 2 non-keyword arguments when embedding instances.')
-	ct = get_content_type(bits[0])
+	ct = parse_content_type(bits[0], tag)
 	pk = bits[1]
 	
 	try: