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-rw-r--r--sublab_project/calendarium/admin.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/sublab_project/calendarium/admin.py b/sublab_project/calendarium/admin.py
index 95d648c..608a66d 100644
--- a/sublab_project/calendarium/admin.py
+++ b/sublab_project/calendarium/admin.py
@@ -21,7 +21,7 @@ class EventAdmin(admin.ModelAdmin):
def get_readonly_fields(self, request, obj=None):
"""Sets all fields read only if source is "import".
"""
- if obj.source == obj.SOURCE_IMPORT:
+ if obj and obj.source == obj.SOURCE_IMPORT:
return ['name', 'description', 'start', 'end']
return []