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-rw-r--r--chimere/models.py9
1 files changed, 6 insertions, 3 deletions
diff --git a/chimere/models.py b/chimere/models.py
index c3d4733..0fc22ee 100644
--- a/chimere/models.py
+++ b/chimere/models.py
@@ -521,11 +521,14 @@ class Marker(GeographicItem):
def default_category(self):
# Should we select only available ones ?
# Should we catch if not exists ?
- return self.categories.all()[0]
+ cats = self.categories
+ if cats.count():
+ return cats.all()[0]
def get_absolute_url(self, area_name=''):
- parameters = 'current_feature=%d&checked_categories=%s' % (self.id,
- self.default_category.pk)
+ parameters = 'current_feature=%d' % self.id
+ if self.default_category:
+ parameters += '&checked_categories=%s' % self.default_category.pk
urn = TinyUrl.getUrnByParameters(parameters)
area_name = area_name + '/' if area_name else ''
url = reverse('chimere:tiny', args=[area_name, urn])