Module | ActiveRecord::Transactions |
In: |
vendor/rails/activerecord/lib/active_record/transactions.rb
|
See ActiveRecord::Transactions::ClassMethods for documentation.
# File vendor/rails/activerecord/lib/active_record/transactions.rb, line 9 9: def self.included(base) 10: base.extend(ClassMethods) 11: 12: base.class_eval do 13: [:destroy, :save, :save!].each do |method| 14: alias_method_chain method, :transactions 15: end 16: end 17: end
Reset id and @new_record if the transaction rolls back.
# File vendor/rails/activerecord/lib/active_record/transactions.rb, line 154 154: def rollback_active_record_state! 155: id_present = has_attribute?(self.class.primary_key) 156: previous_id = id 157: previous_new_record = new_record? 158: yield 159: rescue Exception 160: @new_record = previous_new_record 161: if id_present 162: self.id = previous_id 163: else 164: @attributes.delete(self.class.primary_key) 165: @attributes_cache.delete(self.class.primary_key) 166: end 167: raise 168: end
See ActiveRecord::Transactions::ClassMethods for detailed documentation.
# File vendor/rails/activerecord/lib/active_record/transactions.rb, line 137 137: def transaction(&block) 138: self.class.transaction(&block) 139: 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.
This method is available within the context of an ActiveRecord::Base instance.
# File vendor/rails/activerecord/lib/active_record/transactions.rb, line 176 176: def with_transaction_returning_status(method, *args) 177: status = nil 178: self.class.transaction do 179: status = send(method, *args) 180: raise ActiveRecord::Rollback unless status 181: end 182: status 183: end