diff options
Diffstat (limited to 'activerecord/lib/active_record/relation.rb')
| -rw-r--r-- | activerecord/lib/active_record/relation.rb | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index ef629dcb3b..4e941cf2df 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -362,6 +362,9 @@ module ActiveRecord # # # Update all books that match conditions, but limit it to 5 ordered by date # Book.where('title LIKE ?', '%Rails%').order(:created_at).limit(5).update_all(author: 'David') + # + # # Update all invoices and set the number column to its id value. + # Invoice.update_all('number = id') def update_all(updates) raise ArgumentError, "Empty list of attributes to change" if updates.blank? @@ -370,7 +373,7 @@ module ActiveRecord stmt.set Arel.sql(@klass.send(:sanitize_sql_for_assignment, updates)) stmt.table(table) - if joins_values.any? + if has_join_values? @klass.connection.join_to_update(stmt, arel, arel_attribute(primary_key)) else stmt.key = arel_attribute(primary_key) @@ -519,7 +522,7 @@ module ActiveRecord stmt = Arel::DeleteManager.new stmt.from(table) - if joins_values.any? + if has_join_values? @klass.connection.join_to_delete(stmt, arel, arel_attribute(primary_key)) else stmt.wheres = arel.constraints @@ -677,13 +680,18 @@ module ActiveRecord private + def has_join_values? + joins_values.any? || left_outer_joins_values.any? + end + def exec_queries(&block) @records = eager_loading? ? find_with_associations.freeze : @klass.find_by_sql(arel, bound_attributes, &block).freeze preload = preload_values - preload += includes_values unless eager_loading? - preloader = build_preloader + preload += includes_values unless eager_loading? + preloader = nil preload.each do |associations| + preloader ||= build_preloader preloader.preload @records, associations end |