Added forgotten import of EmptyPage.

[philo.git] / contrib / penfield / utils.py

diff --git a/contrib/penfield/utils.py b/contrib/penfield/utils.py
index 0318e5e..89d01a7 100644 (file)
--- a/contrib/penfield/utils.py
+++ b/contrib/penfield/utils.py
@@ -1,4 +1,36 @@
-from django.core.paginator import Paginator
+from django.core.paginator import Paginator, EmptyPage
+
+
+class PaginationProxy(object):
+       def __init__(self, paginator=None, page=None, objects=None):
+               self.paginator = paginator
+               self.page = page
+               self.objects = objects
+       
+       @property
+       def page_range(self):
+               if not self.paginator:
+                       return None
+               
+               return self.paginator.page_range
+       
+       @property
+       def num_pages(self):
+               if not self.paginator:
+                       return None
+               
+               return self.paginator.num_pages
+       
+       @property
+       def page_number(self):
+               if not self.page:
+                       return None
+               
+               return self.page.number
+       
+       # Why doesn't this work?
+       #def __bool__(self):
+       #       return bool(self.paginator)
 
 
 def paginate(objects, per_page=None, page_number=1):
@@ -9,16 +41,16 @@ def paginate(objects, per_page=None, page_number=1):
                per_page = int(per_page)
        except (TypeError, ValueError):
                # Then either it wasn't set or it was set to an invalid value
-               return None, objects
+               return PaginationProxy(objects=objects)
        
        # There also shouldn't be pagination if the list is too short. Try count()
        # first - good chance it's a queryset, where count is more efficient.
        try:
                if objects.count() <= per_page:
-                       return None, objects
+                       return PaginationProxy(objects=objects)
        except AttributeError:
                if len(objects) <= per_page:
-                       return None, objects
+                       return PaginationProxy(objects=objects)
        
        paginator = Paginator(objects, per_page)
        try:
@@ -26,8 +58,9 @@ def paginate(objects, per_page=None, page_number=1):
        except:
                page_number = 1
        
-       # This will raise an EmptyPage error if the page number is out of range.
-       # This error is intentionally left for the calling function to handle.
-       page = paginator.page(page_number)
+       try:
+               page = paginator.page(page_number)
+       except EmptyPage:
+               page = None
        
-       return page, page.object_list
\ No newline at end of file
+       return PaginationProxy(paginator, page, objects)
\ No newline at end of file