diff options
Diffstat (limited to 'activerecord/lib/active_record/associations/preloader.rb')
| -rw-r--r-- | activerecord/lib/active_record/associations/preloader.rb | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/activerecord/lib/active_record/associations/preloader.rb b/activerecord/lib/active_record/associations/preloader.rb index 8997579527..d4e8b364e1 100644 --- a/activerecord/lib/active_record/associations/preloader.rb +++ b/activerecord/lib/active_record/associations/preloader.rb @@ -95,7 +95,6 @@ module ActiveRecord end private - # Loads all the given data into +records+ for the +association+. def preloaders_on(association, records, scope, polymorphic_parent = false) case association @@ -143,16 +142,13 @@ module ActiveRecord def preloaders_for_reflection(reflection, records, scope) records.group_by { |record| record.association(reflection.name).klass }.map do |rhs_klass, rs| - loader = preloader_for(reflection, rs).new(rhs_klass, rs, reflection, scope) - loader.run self - loader + preloader_for(reflection, rs).new(rhs_klass, rs, reflection, scope).run end end def grouped_records(association, records, polymorphic_parent) h = {} records.each do |record| - next unless record reflection = record.class._reflect_on_association(association) next if polymorphic_parent && !reflection || !record.association(association).klass (h[reflection] ||= []) << record @@ -166,10 +162,18 @@ module ActiveRecord @reflection = reflection end - def run(preloader); end + def run + self + end def preloaded_records - owners.flat_map { |owner| owner.association(reflection.name).target } + @preloaded_records ||= records_by_owner.flat_map(&:last) + end + + def records_by_owner + @records_by_owner ||= owners.each_with_object({}) do |owner, result| + result[owner] = Array(owner.association(reflection.name).target) + end end private |