我想知道它是否可以在rails中在一次交易中进行多次更新和创建.
我想创造一个号码.任何阵列的产品.但是对于每个产品,我还需要为它创建公司和类别.
所以这个想法是这样的
-- Start a transaction
//create a company
//create a category
while product_list
{
//create a product with company and category created above
}
-- end a transcation
因此,如果任何创建失败,我希望先前的更新/创建回滚.
解决方法
begin
ActiveRecord::Base.transaction do
# create a company
# create a category
while product_list
{
# create a product with company and category created above
}
end
rescue => e
# something went wrong,transaction rolled back
end