X-Git-Url: https://git.mdrn.pl/edumed.git/blobdiff_plain/98ee5cf033d8530bcf8a1464c9037552aa38aa67..refs/heads/wtem:/wtem/admin.py

diff --git a/wtem/admin.py b/wtem/admin.py
index 45ebece..d4b6682 100644
--- a/wtem/admin.py
+++ b/wtem/admin.py
@@ -32,12 +32,12 @@ class AttachmentWidget(forms.Widget):
             a_tag = '<a href="%s">%s</a>' % (value, value)
         else:
             a_tag = 'brak'
-        return mark_safe(('<input type="hidden" name="%s" value="%s"/>' + a_tag) % (name, value))
+        return mark_safe(('<input type="hidden" name="%s" value="%s"/>' % (name, value)) + a_tag)
 
 class SubmissionFormBase(forms.ModelForm):
     class Meta:
         model = Submission
-        exclude = ('answers', 'marks', 'contact') + readonly_fields
+        exclude = ('answers', 'marks', 'contact', 'end_time') + readonly_fields
 
 
 def get_open_answer(answers, exercise):