[1.0.X] Fixed #9520: make the date filter fail silently for non-date …

…values. Thanks, Andrew Badr and Eric Holscher. Backport of r10365 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.0.X@10366 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/template/defaultfilters.py

@@ -673,7 +673,10 @@ def date(value, arg=None):
         return u''
     if arg is None:
         arg = settings.DATE_FORMAT
-    return format(value, arg)
+    try:
+        return format(value, arg)
+    except AttributeError:
+        return ''
 date.is_safe = False
 
 def time(value, arg=None):
@@ -683,7 +686,10 @@ def time(value, arg=None):
         return u''
     if arg is None:
         arg = settings.TIME_FORMAT
-    return time_format(value, arg)
+    try:
+        return time_format(value, arg)
+    except AttributeError:
+        return ''
 time.is_safe = False
 
 def timesince(value, arg=None):

tests/regressiontests/templates/filters.py

@@ -317,4 +317,10 @@ def get_filter_tests():
         'join02': (r'{% autoescape off %}{{ a|join:", " }}{% endautoescape %}', {'a': ['alpha', 'beta & me']}, 'alpha, beta & me'),
         'join03': (r'{{ a|join:" & " }}', {'a': ['alpha', 'beta & me']}, 'alpha & beta & me'),
         'join04': (r'{% autoescape off %}{{ a|join:" & " }}{% endautoescape %}', {'a': ['alpha', 'beta & me']}, 'alpha & beta & me'),
+
+
+        'date01': (r'{{ d|date:"m" }}', {'d': datetime(2008, 1, 1)}, '01'),
+        'date02': (r'{{ d|date }}', {'d': datetime(2008, 1, 1)}, 'Jan. 1, 2008'),
+        #Ticket 9520: Make sure |date doesn't blow up on non-dates
+        'date03': (r'{{ d|date:"m" }}', {'d': 'fail_string'}, ''),
     }