Refactor: Optimize recent changes query

supabase/migrations/20251030222918_05a2e1ff-1eac-4824-8534-9bee48c3e8af.sql

@@ -0,0 +1,87 @@
+-- Create a function to get recent changes across all entities in a single query
+CREATE OR REPLACE FUNCTION get_recent_changes(limit_count INT DEFAULT 24)
+RETURNS TABLE (
+  entity_type TEXT,
+  entity_id UUID,
+  entity_name TEXT,
+  entity_slug TEXT,
+  park_slug TEXT,
+  image_url TEXT,
+  change_type TEXT,
+  changed_at TIMESTAMPTZ,
+  changed_by_username TEXT,
+  changed_by_avatar TEXT,
+  change_reason TEXT
+) 
+LANGUAGE plpgsql
+STABLE
+SECURITY DEFINER
+SET search_path = public
+AS $$
+BEGIN
+  RETURN QUERY
+  SELECT * FROM (
+    -- Park versions
+    SELECT 
+      'park'::TEXT as entity_type,
+      pv.park_id as entity_id,
+      pv.name as entity_name,
+      pv.slug as entity_slug,
+      NULL::TEXT as park_slug,
+      pv.card_image_url as image_url,
+      pv.change_type::TEXT as change_type,
+      pv.created_at as changed_at,
+      p.username as changed_by_username,
+      p.avatar_url as changed_by_avatar,
+      pv.change_reason as change_reason
+    FROM park_versions pv
+    LEFT JOIN profiles p ON p.user_id = pv.created_by
+    WHERE pv.is_current = true
+    
+    UNION ALL
+    
+    -- Ride versions with park slug
+    SELECT 
+      'ride'::TEXT as entity_type,
+      rv.ride_id as entity_id,
+      rv.name as entity_name,
+      rv.slug as entity_slug,
+      parks.slug as park_slug,
+      rv.card_image_url as image_url,
+      rv.change_type::TEXT as change_type,
+      rv.created_at as changed_at,
+      p.username as changed_by_username,
+      p.avatar_url as changed_by_avatar,
+      rv.change_reason as change_reason
+    FROM ride_versions rv
+    LEFT JOIN profiles p ON p.user_id = rv.created_by
+    LEFT JOIN parks ON parks.id = rv.park_id
+    WHERE rv.is_current = true
+    
+    UNION ALL
+    
+    -- Company versions
+    SELECT 
+      'company'::TEXT as entity_type,
+      cv.company_id as entity_id,
+      cv.name as entity_name,
+      cv.slug as entity_slug,
+      NULL::TEXT as park_slug,
+      cv.card_image_url as image_url,
+      cv.change_type::TEXT as change_type,
+      cv.created_at as changed_at,
+      p.username as changed_by_username,
+      p.avatar_url as changed_by_avatar,
+      cv.change_reason as change_reason
+    FROM company_versions cv
+    LEFT JOIN profiles p ON p.user_id = cv.created_by
+    WHERE cv.is_current = true
+  ) combined
+  ORDER BY changed_at DESC
+  LIMIT limit_count;
+END;
+$$;
+
+-- Grant execute permission to authenticated users
+GRANT EXECUTE ON FUNCTION get_recent_changes(INT) TO authenticated;
+GRANT EXECUTE ON FUNCTION get_recent_changes(INT) TO anon;