feat: add MasterView registry/discovery mechanism

and show related MasterView link buttons when viewing App Table

also show some more info about model class when viewing table

tests/views/test_tables.py

@@ -9,6 +9,7 @@ from wuttjamaican.db.conf import check_alembic_current, make_alembic_config
 
 from wuttaweb.testing import WebTestCase
 from wuttaweb.views import tables as mod
+from wuttaweb.views.users import UserView
 
 
 class TestAppTableView(WebTestCase):
@@ -75,6 +76,34 @@ version_locations = wuttjamaican.db:alembic/versions
         table = {"name": "poser_foo"}
         self.assertEqual(view.get_instance_title(table), "poser_foo")
 
+    def test_configure_form(self):
+        view = self.make_view()
+        table = {"name": "user", "description": "Represents a user"}
+
+        # no description widget by default
+        form = view.make_form(model_instance=table, fields=["name", "description"])
+        self.assertNotIn("description", form.widgets)
+
+        # but it gets added when configuring
+        view.configure_form(form)
+        self.assertIn("description", form.widgets)
+
+    def test_get_xref_buttons(self):
+        self.pyramid_config.add_route("users", "/users/")
+        model = self.app.model
+        view = self.make_view()
+
+        # nb. must add this first
+        self.pyramid_config.add_wutta_master_view(UserView)
+
+        # now xref button should work
+        table = {"name": "person", "model_class": model.User}
+        buttons = view.get_xref_buttons(table)
+        self.assertEqual(len(buttons), 1)
+        button = buttons[0]
+        self.assertIn("Users", button)
+        self.assertIn("http://example.com/users/", button)
+
     def test_get_row_grid_data(self):
         model = self.app.model
         view = self.make_view()