When creating an export, set creator to current user

many exports won't support creation via web app, but some will

tailbone/views/exports.py

@@ -133,6 +133,12 @@ class ExportMasterView(MasterView):
             f.append('download')
             f.set_renderer('download', self.render_download)
 
+    def objectify(self, form, data=None):
+        obj = super(ExportMasterView, self).objectify(form, data=data)
+        if self.creating:
+            obj.created_by = self.request.user
+        return obj
+
     def render_download(self, export, field):
         path = self.get_file_path(export)
         text = "{} ({})".format(export.filename, self.readable_size(path))