flake8 cleanups

apps/documents/models.py

@@ -153,7 +153,7 @@ class Document(models.Model):
 
     def exists(self):
         return self.file.storage.exists(self.file.path)
-        
+
     def get_metadata_string(self):
         return u', '.join([u'%s - %s' % (metadata.metadata_type, metadata.value) for metadata in self.documentmetadata_set.select_related('metadata_type', 'document').defer('document__document_type', 'document__file', 'document__description', 'document__file_filename', 'document__uuid', 'document__date_added', 'document__date_updated', 'document__file_mimetype', 'document__file_mime_encoding')])
 
@@ -284,7 +284,7 @@ class MetadataGroupManager(models.Manager):
         metadata_dict = {}
         for document_metadata in document.documentmetadata_set.all():
             metadata_dict['metadata_%s' % document_metadata.metadata_type.name] = document_metadata.value
-       
+
         if group_obj:
             groups_qs = MetadataGroup.objects.filter((Q(document_type=document.document_type) | Q(document_type=None)) & Q(enabled=True) & Q(pk=group_obj.pk))
         else:
@@ -317,9 +317,9 @@ class MetadataGroupManager(models.Manager):
 
         if group_obj:
             return metadata_groups[group_obj], errors
-            
+
         return metadata_groups, errors
-    
+
 
 class MetadataGroup(models.Model):
     document_type = models.ManyToManyField(DocumentType, null=True, blank=True,
@@ -415,9 +415,9 @@ class RecentDocument(models.Model):
     user = models.ForeignKey(User, verbose_name=_(u'user'), editable=False)
     document = models.ForeignKey(Document, verbose_name=_(u'document'), editable=False)
     datetime_accessed = models.DateTimeField(verbose_name=_(u'accessed'), db_index=True)
-    
+
     objects = RecentDocumentManager()
-    
+
     def __unicode__(self):
         return unicode(self.document)