diff options
Diffstat (limited to 'activerecord/lib')
4 files changed, 29 insertions, 9 deletions
diff --git a/activerecord/lib/active_record/associations/association_proxy.rb b/activerecord/lib/active_record/associations/association_proxy.rb index 981be3b1a9..99b8748a48 100644 --- a/activerecord/lib/active_record/associations/association_proxy.rb +++ b/activerecord/lib/active_record/associations/association_proxy.rb @@ -213,7 +213,7 @@ module ActiveRecord # Array#flatten has problems with recursive arrays. Going one level deeper solves the majority of the problems. def flatten_deeper(array) - array.collect { |element| element.respond_to?(:flatten) ? element.flatten : element }.flatten + array.collect { |element| (element.respond_to?(:flatten) && !element.is_a?(Hash)) ? element.flatten : element }.flatten end def owner_quoted_id diff --git a/activerecord/lib/active_record/callbacks.rb b/activerecord/lib/active_record/callbacks.rb index be2621fdb6..eec531c514 100644 --- a/activerecord/lib/active_record/callbacks.rb +++ b/activerecord/lib/active_record/callbacks.rb @@ -169,6 +169,18 @@ module ActiveRecord # If a <tt>before_*</tt> callback returns +false+, all the later callbacks and the associated action are cancelled. If an <tt>after_*</tt> callback returns # +false+, all the later callbacks are cancelled. Callbacks are generally run in the order they are defined, with the exception of callbacks # defined as methods on the model, which are called last. + # + # == Transactions + # + # The entire callback chain of a +save+, <tt>save!</tt>, or +destroy+ call runs + # within a transaction. That includes <tt>after_*</tt> hooks. If everything + # goes fine a COMMIT is executed once the chain has been completed. + # + # If a <tt>before_*</tt> callback cancels the action a ROLLBACK is issued. You + # can also trigger a ROLLBACK raising an exception in any of the callbacks, + # including <tt>after_*</tt> hooks. Note, however, that in that case the client + # needs to be aware of it because an ordinary +save+ will raise such exception + # instead of quietly returning +false+. module Callbacks CALLBACKS = %w( after_find after_initialize before_save after_save before_create after_create before_update after_update before_validation diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb index 0f60a91ef1..bececf82a0 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -384,12 +384,8 @@ module ActiveRecord def add_column_options!(sql, options) #:nodoc: sql << " DEFAULT #{quote(options[:default], options[:column])}" if options_include_default?(options) # must explicitly check for :null to allow change_column to work on migrations - if options.has_key? :null - if options[:null] == false - sql << " NOT NULL" - else - sql << " NULL" - end + if options[:null] == false + sql << " NOT NULL" end end diff --git a/activerecord/lib/active_record/transactions.rb b/activerecord/lib/active_record/transactions.rb index 0531afbb52..81462a2917 100644 --- a/activerecord/lib/active_record/transactions.rb +++ b/activerecord/lib/active_record/transactions.rb @@ -91,11 +91,11 @@ module ActiveRecord end def destroy_with_transactions #:nodoc: - transaction { destroy_without_transactions } + with_transaction_returning_status(:destroy_without_transactions) end def save_with_transactions(perform_validation = true) #:nodoc: - rollback_active_record_state! { transaction { save_without_transactions(perform_validation) } } + rollback_active_record_state! { with_transaction_returning_status(:save_without_transactions, perform_validation) } end def save_with_transactions! #:nodoc: @@ -118,5 +118,17 @@ module ActiveRecord end raise end + + # Executes +method+ within a transaction and captures its return value as a + # status flag. If the status is true the transaction is committed, otherwise + # a ROLLBACK is issued. In any case the status flag is returned. + def with_transaction_returning_status(method, *args) + status = nil + transaction do + status = send(method, *args) + raise ActiveRecord::Rollback unless status + end + status + end end end |