Fix default max_id query in paginate_by_max_id

app/controllers/api/accounts_controller.rb

@@ -15,7 +15,7 @@ class Api::AccountsController < ApiController
   end
 
   def statuses
-    @statuses = @account.statuses.with_includes.with_counters.paginate_by_max_id(20, params[:max_id])
+    @statuses = @account.statuses.with_includes.with_counters.paginate_by_max_id(20, params[:max_id] || nil)
   end
 
   def follow

app/models/status.rb

@@ -17,7 +17,7 @@ class Status < ActiveRecord::Base
 
   scope :with_counters,      -> { select('statuses.*, (select count(r.id) from statuses as r where r.reblog_of_id = statuses.id) as reblogs_count, (select count(f.id) from favourites as f where f.status_id = statuses.id) as favourites_count') }
   scope :with_includes,      -> { includes(:account, reblog: :account, thread: :account) }
-  scope :paginate_by_max_id, -> (limit, max_id) { order('id desc').limit(limit).where('id < ?', max_id) }
+  scope :paginate_by_max_id, -> (limit, max_id) { order('id desc').limit(limit).where(max_id.nil? ? '1=1' : ['id < ?', max_id]) }
 
   def local?
     self.uri.nil?