问题
I have a complex action inside controller that performs several update queries to the database.
How can I make this action acts like transaction without any structural refactoring?
回答1:
MyModel.transaction do
begin
@model.update_stuff
@sub_model.update_stuff
@sub_sub_model.update_stuff
rescue ActiveRecord::StatementInvalid # or whatever
# rollback is automatic, but if you want to do something additional,
# add it here
end
end
Here are the docs for the transaction method.
回答2:
It's posible to make all actions in controller transactional at once with:
around_filter :transactional
def transactional
ActiveRecord::Base.transaction do
yield
end
end
来源:https://stackoverflow.com/questions/933696/transaction-action-with-ruby-on-rails