#7 New forms

* fixes bug in case of unset dates for intervention
* adds missing template formater
* adds/updates translations

intervention/forms.py

@@ -265,6 +265,13 @@ class EditInterventionForm(NewInterventionForm):
         self.form_title = _("Edit intervention")
         self.form_caption = ""
 
+        reg_date = self.instance.legal.registration_date
+        bind_date = self.instance.legal.binding_date
+        if reg_date is not None:
+            reg_date = reg_date.isoformat()
+        if bind_date is not None:
+            bind_date = bind_date.isoformat()
+
         # Initialize form data
         form_data = {
             "identifier": self.instance.identifier,
@@ -276,8 +283,8 @@ class EditInterventionForm(NewInterventionForm):
             "registration_file_number": self.instance.responsible.registration_file_number,
             "conservation_office": self.instance.responsible.conservation_office,
             "conservation_file_number": self.instance.responsible.conservation_file_number,
-            "registration_date": self.instance.legal.registration_date.isoformat(),
-            "binding_date": self.instance.legal.binding_date.isoformat(),
+            "registration_date": reg_date,
+            "binding_date": bind_date,
             "comment": self.instance.comment,
         }
         disabled_fields = [