fix: only show "create row" button if batch view supports it

src/wuttaweb/views/batch.py

@@ -445,7 +445,7 @@ class BatchMasterView(MasterView):
         g.set_renderer("status_code", self.render_row_status)
 
         # tool button - create row
-        if not batch.executed and self.has_perm("create_row"):
+        if self.rows_creatable and not batch.executed and self.has_perm("create_row"):
             button = self.make_button(
                 f"New {self.get_row_model_title()}",
                 primary=True,

tests/views/test_batch.py

@@ -442,6 +442,7 @@ class TestBatchMasterView(WebTestCase):
                     mod.BatchMasterView,
                     model_class=MockBatch,
                     route_prefix="mock_batches",
+                    rows_creatable=True,
                     create=True,
                 ):
                     with patch.object(