Fixed bug with Templates considered comment, closes #689

datasette/app.py

@@ -558,17 +558,10 @@ class Datasette:
         context = context or {}
         if isinstance(templates, Template):
             template = templates
-            select_templates = []
         else:
             if isinstance(templates, str):
                 templates = [templates]
             template = self.jinja_env.select_template(templates)
-            select_templates = [
-                "{}{}".format(
-                    "*" if template_name == template.name else "", template_name
-                )
-                for template_name in templates
-            ]
         body_scripts = []
         # pylint: disable=no-member
         for script in pm.hook.extra_body_script(
@@ -603,7 +596,6 @@ class Datasette:
             **context,
             **{
                 "app_css_hash": self.app_css_hash(),
-                "select_templates": select_templates,
                 "zip": zip,
                 "body_scripts": body_scripts,
                 "format_bytes": format_bytes,

datasette/views/base.py

@@ -79,6 +79,12 @@ class BaseView(AsgiView):
             **{
                 "database_url": self.database_url,
                 "database_color": self.database_color,
+                "select_templates": [
+                    "{}{}".format(
+                        "*" if template_name == template.name else "", template_name
+                    )
+                    for template_name in templates
+                ],
             },
         }
         return Response.html(

tests/test_html.py

@@ -456,6 +456,33 @@ def test_css_classes_on_body(app_client, path, expected_classes):
     assert classes == expected_classes
 
 
+@pytest.mark.parametrize(
+    "path,expected_considered",
+    [
+        ("/", "*index.html"),
+        ("/fixtures", "database-fixtures.html, *database.html"),
+        (
+            "/fixtures/simple_primary_key",
+            "table-fixtures-simple_primary_key.html, *table.html",
+        ),
+        (
+            "/fixtures/table%2Fwith%2Fslashes.csv",
+            "table-fixtures-tablewithslashescsv-fa7563.html, *table.html",
+        ),
+        (
+            "/fixtures/simple_primary_key/1",
+            "row-fixtures-simple_primary_key.html, *row.html",
+        ),
+    ],
+)
+def test_templates_considered(app_client, path, expected_considered):
+    response = app_client.get(path)
+    assert response.status == 200
+    assert (
+        "<!-- Templates considered: {} -->".format(expected_considered) in response.text
+    )
+
+
 def test_table_html_simple_primary_key(app_client):
     response = app_client.get("/fixtures/simple_primary_key?_size=3")
     assert response.status == 200