diff options
Diffstat (limited to 'activerecord/lib/active_record/associations/preloader/association.rb')
-rw-r--r-- | activerecord/lib/active_record/associations/preloader/association.rb | 68 |
1 files changed, 15 insertions, 53 deletions
diff --git a/activerecord/lib/active_record/associations/preloader/association.rb b/activerecord/lib/active_record/associations/preloader/association.rb index 63ef3f2d8c..85343040db 100644 --- a/activerecord/lib/active_record/associations/preloader/association.rb +++ b/activerecord/lib/active_record/associations/preloader/association.rb @@ -11,7 +11,6 @@ module ActiveRecord @reflection = reflection @preload_scope = preload_scope @model = owners.first && owners.first.class - @scope = nil @preloaded_records = [] end @@ -23,29 +22,11 @@ module ActiveRecord raise NotImplementedError end - def scope - @scope ||= build_scope - end - - def records_for(ids) - scope.where(association_key_name => ids) - end - - def table - klass.arel_table - end - # The name of the key on the associated records def association_key_name raise NotImplementedError end - # This is overridden by HABTM as the condition should be on the foreign_key column in - # the join table - def association_key - klass.arel_attribute(association_key_name, table) - end - # The name of the key on the model which declares the association def owner_key_name raise NotImplementedError @@ -114,54 +95,35 @@ module ActiveRecord # Make several smaller queries if necessary or make one query if the adapter supports it slices = owner_keys.each_slice(klass.connection.in_clause_length || owner_keys.size) @preloaded_records = slices.flat_map do |slice| - records_for(slice).load(&block) + records_for(slice, &block) end @preloaded_records.group_by do |record| convert_key(record[association_key_name]) end end + def records_for(ids, &block) + scope.where(association_key_name => ids).load(&block) + end + + def scope + @scope ||= build_scope + end + def reflection_scope @reflection_scope ||= reflection.scope_for(klass) end def build_scope - scope = klass.unscoped - - values = reflection_scope.values - preload_values = preload_scope.values - - scope.where_clause = reflection_scope.where_clause + preload_scope.where_clause - scope.references_values = Array(values[:references]) + Array(preload_values[:references]) - - if preload_values[:select] || values[:select] - scope._select!(preload_values[:select] || values[:select]) - end - scope.includes! preload_values[:includes] || values[:includes] - if preload_scope.joins_values.any? - scope.joins!(preload_scope.joins_values) - else - scope.joins!(reflection_scope.joins_values) - end - - if order_values = preload_values[:order] || values[:order] - scope.order!(order_values) - end - - if preload_values[:reordering] || values[:reordering] - scope.reordering_value = true - end - - if preload_values[:readonly] || values[:readonly] - scope.readonly! - end + scope = klass.default_scoped - if options[:as] - scope.where!(klass.table_name => { reflection.type => model.base_class.sti_name }) + if reflection.type + scope.where!(reflection.type => model.base_class.sti_name) end - scope.unscope_values = Array(values[:unscope]) + Array(preload_values[:unscope]) - klass.default_scoped.merge(scope) + scope.merge!(reflection_scope) + scope.merge!(preload_scope) if preload_scope + scope end end end |