#434

backend/app/services/counts_query.rb

@@ -1,7 +1,7 @@
 # Read-only history queries. SQL identifiers and expressions are server-owned.
 class CountsQuery
   AXES = ['month', 'user'].freeze
-  COMMON_COLUMNS = ['resource_id', 'version_no', 'is_latest', 'event_type', 'user', 'created_at'].freeze
+  COMMON_COLUMNS = ['resource_id', 'version_no', 'latest', 'event_type', 'user', 'created_at'].freeze
   COLUMNS = {
       'posts' => COMMON_COLUMNS + [
           'thumbnail', 'thumbnail_base', 'title', 'url', 'tags', 'parents', 'video_ms',
@@ -15,6 +15,7 @@ class CountsQuery
   attr_reader :page, :limit, :mode, :axis
 
   def initialize(scope, resource, params, latest_expression: nil)
+    params = CountsResourceDefinition.normalise_params(params)
     @table = scope.klass.table_name
     @resource = resource
     @id_column = resource == 'posts' ? 'post_id' : 'tag_id'
@@ -117,7 +118,7 @@ class CountsQuery
   def detail_expressions
     common = { 'resource_id' => ["#{ @table }.#{ @id_column }"],
                'version_no' => ["#{ @table }.version_no"],
-               'is_latest' => ["(#{ latest_expression })"],
+               'latest' => ["(#{ latest_expression })"],
                'user' => ['counts_actor.name', "#{ @table }.created_by_user_id"],
                'created_at' => ["#{ @table }.created_at"] }
     if @resource == 'posts'