WIP: dynamic base path

Author: ChrisBAshton

app/models/concerns/standard_edition/child_document.rb

@@ -16,4 +16,13 @@ module StandardEdition::ChildDocument
   def is_child_document?
     parent_edition.present?
   end
+
+  def child_document_base_path_override
+    return unless is_child_document?
+
+    parent_path = parent_edition.base_path
+    fixed_path = type_instance.settings["fixed_path"]
+
+    fixed_path.sub("$INHERITED", parent_path)
+  end
 end

app/models/configurable_document_types/topical_event_about_page.json

@@ -50,7 +50,7 @@
     }
   },
   "settings": {
-    "base_path_prefix": "/fixme",
+    "fixed_path": "$INHERITED/about",
     "publishing_api_schema_name": "topical_event_about_page",
     "publishing_api_document_type": "topical_event_about_page",
     "rendering_app": "frontend",

app/models/standard_edition.rb

@@ -104,7 +104,10 @@ def change_note_required?
   end
 
   def base_path
-    "#{type_instance.settings['base_path_prefix']}/#{slug}"
+    # Bit of a hack - would be nice to restrict all of the child document logic
+    # to the ChildDocuments concern, but we can't override base_path in there and
+    # fall back to the generic implementation here.
+    child_document_base_path_override || "#{type_instance.settings['base_path_prefix']}/#{slug}"
   end
 
   def type_instance