2 files changed, 16 insertions, 1 deletions
diff --git a/archaeological_context_records/forms.py b/archaeological_context_records/forms.py
index 6bbc3099c..375943c9c 100644
--- a/archaeological_context_records/forms.py
+++ b/archaeological_context_records/forms.py
@@ -133,7 +133,15 @@ class RecordFormSelection(CustomFormSearch):
         if 'pk' not in cleaned_data or not cleaned_data['pk']:
             raise forms.ValidationError(_(u"You should at least select one "
                                           u"context record."))
-        return cleaned_data
+        pk = self.cleaned_data["pk"]
+        try:
+            cr = models.ContextRecord.objects.get(pk=pk)
+        except models.ContextRecord.DoesNotExist:
+            raise forms.ValidationError(_("Invalid selection."))
+        if cr.locked:
+            raise forms.ValidationError(_("This context record is locked for "
+                                          "edition."))
+        return self.cleaned_data
 
 
 class RecordFormGeneral(CustomForm, ManageOldType):
diff --git a/archaeological_context_records/views.py b/archaeological_context_records/views.py
index fe77150f6..794cb5592 100644
--- a/archaeological_context_records/views.py
+++ b/archaeological_context_records/views.py
@@ -144,6 +144,13 @@ def record_modify(request, pk):
         )
         return HttpResponseRedirect("/")
 
+    q = models.ContextRecord.objects.filter(pk=pk)
+    if not q.count():
+        raise Http404()
+    cr = q.all()[0]
+    if cr.locked:
+        raise Http404()
+
     wizards.RecordModifWizard.session_set_value(
         request, 'selec-record_modification', 'pk', pk, reset=True)
     return redirect(reverse('record_modification',