From af5e1b4cc6fd3ae5f5e175751373a5e60934385b Mon Sep 17 00:00:00 2001 From: Pratik Naik Date: Sun, 3 Jan 2010 19:42:29 +0530 Subject: Add Relation#except --- .../lib/active_record/relation/spawn_methods.rb | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'activerecord/lib/active_record/relation') diff --git a/activerecord/lib/active_record/relation/spawn_methods.rb b/activerecord/lib/active_record/relation/spawn_methods.rb index 7b15279253..b9e3457aac 100644 --- a/activerecord/lib/active_record/relation/spawn_methods.rb +++ b/activerecord/lib/active_record/relation/spawn_methods.rb @@ -45,5 +45,27 @@ module ActiveRecord alias :& :merge + def except(*skips) + result = Relation.new(@klass, table) + result.table = table + + [:eager_load, :preload, :includes].each do |load_method| + result = result.send(load_method, send(:"#{load_method}_associations")) + end + + result.readonly = self.readonly unless skips.include?(:readonly) + + result = result.joins(@relation.joins(@relation)) unless skips.include?(:joins) + result = result.group(@relation.groupings) unless skips.include?(:group) + result = result.limit(@relation.taken) unless skips.include?(:limit) + result = result.offset(@relation.skipped) unless skips.include?(:offset) + result = result.select(@relation.send(:select_clauses)) unless skips.include?(:select) + result = result.from(@relation.sources) unless skips.include?(:from) + result = result.order(order_clause) unless skips.include?(:order) + result = result.where(*@relation.wheres) unless skips.include?(:where) + + result + end + end end -- cgit v1.2.3