Add "generic" render_id_str() method to MasterView

not sure how useful, but maybe

tailbone/views/batch/core.py

@@ -228,7 +228,7 @@ class BatchMasterView(MasterView):
 
         g.set_enum('status_code', self.model_class.STATUS)
 
-        g.set_renderer('id', self.render_batch_id)
+        g.set_renderer('id', self.render_id_str)
 
         g.set_link('id')
         g.set_link('description')
@@ -238,9 +238,6 @@ class BatchMasterView(MasterView):
         g.set_label('rowcount', "Rows")
         g.set_label('status_code', "Status")
 
-    def render_batch_id(self, batch, column):
-        return batch.id_str
-
     def template_kwargs_index(self, **kwargs):
         route_prefix = self.get_route_prefix()
         if self.results_executable:

tailbone/views/master.py

@@ -848,6 +848,12 @@ class MasterView(View):
             'importer_host_title': importer_host_title,
         })
 
+    def render_id_str(self, obj, field):
+        """
+        Render the ``id_str`` attribute value for the given object.
+        """
+        return obj.id_str
+
     def render_default_phone(self, obj, field):
         """
         Render the "default" (first) phone number for the given contact.