diff options
Diffstat (limited to 'activerecord/lib/active_record/relation.rb')
| -rw-r--r-- | activerecord/lib/active_record/relation.rb | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index 612f376c55..60f2726a6e 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -244,8 +244,7 @@ module ActiveRecord def empty? return @records.empty? if loaded? - c = count(:all) - c.respond_to?(:zero?) ? c.zero? : c.empty? + limit_value == 0 ? true : !exists? end # Returns true if there are any records. @@ -502,12 +501,18 @@ module ActiveRecord # # => SELECT "users".* FROM "users" WHERE "users"."name" = 'Oscar' def to_sql @to_sql ||= begin + relation = self + connection = klass.connection + visitor = connection.visitor + if eager_loading? - join_dependency = construct_join_dependency - relation = construct_relation_for_association_find(join_dependency) - klass.connection.to_sql(relation.arel, relation.bind_values) - else - klass.connection.to_sql(arel, bind_values.dup) + find_with_associations { |rel| relation = rel } + end + + ast = relation.arel.ast + binds = relation.bind_values.dup + visitor.accept(ast) do + connection.quote(*binds.shift.reverse) end end end @@ -592,8 +597,9 @@ module ActiveRecord preload = preload_values preload += includes_values unless eager_loading? + preloader = ActiveRecord::Associations::Preloader.new preload.each do |associations| - ActiveRecord::Associations::Preloader.new(@records, associations).run + preloader.preload @records, associations end @records.each { |record| record.readonly! } if readonly_value |