xml ファイルの顧客からロードするメソッドがあります。ファイルをダウンロードする前に、xml ファイルに含まれていないすべての顧客は有効性 false に入れられます。次に、既存の顧客の読み込みと更新を開始します。メソッド全体をトランザクションでラップしました。しかし、ダウンロード クライアントを意図的に間違ったもの (検証に合格しない) にしようとすると、トランザクション全体がロールバックされません。私は何を間違っていますか?トランザクションレールで作業するには?
コード:
if customers_upload
EXCHANGE_LOGGER.info("Start customers exchange")
Customer.transaction do
begin
customers = xml.elements.to_a("//customer")
customers_external_keys = []
customers.each do |customer|
customers_external_keys << customer.elements['external_key'].text
end
customers_false = Customer.where("external_key NOT IN (?)", customers_external_keys)
customers_false.each do |customer_false|
if customer_false.validity
customer_false.update_attributes(validity: false)
end
end
EXCHANGE_LOGGER.info("#{customers_false.count} update validity in false")
customers.each do |customer|
customer_name = customer.elements['name'].text
customer_external_key = customer.elements['external_key'].text
customer_address = customer.elements['address'].text
customer_debt = customer.elements['debt'].text
customer_db = Customer.find_by_external_key(customer_external_key)
if !customer_db
new_customer = Customer.create(name: customer_name, external_key: customer_external_key, address: customer_address, debt: customer_debt)
EXCHANGE_LOGGER.info("#Create new customer #{customer_name}")
else
if !customer_db.validity
customer_db.update_attributes(name: customer_name, address: customer_address, debt: customer_debt, validity: true)
EXCHANGE_LOGGER.info("#Change validity true and update customer #{customer_name}")
else
customer_db.update_attributes(name: customer_name, address: customer_address, debt: customer_debt)
EXCHANGE_LOGGER.info("#Update customer #{customer_name}")
end
end
end
rescue => e
if e.present?
EXCHANGE_LOGGER.error("Customers not exchanged, message: #{e}")
raise ActiveRecord::Rollback, "Call tech support!"
end
end
end
end
exchange.log の内容は次のとおりです。
2013-11-29 10:53:23 INFO Start customers exchange
2013-11-29 10:53:33 INFO 3981 update validity in false
2013-11-29 10:53:33 ERROR Customers not exchanged, message: undefined method `text 'for nil: NilClass
development.log の内容は次のとおりです。
Customer Exists (0.2ms) SELECT 1 AS one FROM
customers
WHERE (customers
.External_key
= 'CB001820' ANDcustomers
.Id
! = 3979 ) LIMIT 1 (0.1ms) UPDATEcustomers
SETvalidity
= 0 ,updated_at
= '2013- 11 -29 10:53:33 'WHEREcustomers
.Id
= 3979 Customer Exists (0.2ms) SELECT 1 AS one FROMcustomers
WHERE (customers
.External_key
= 'CB001826' ANDcustomers
.Id
! = 3980 ) LIMIT 1 (0.1ms) UPDATEcustomers
SETvalidity
= 0 ,updated_at
= '2013- 11 -29 10:53:33 'どこcustomers
で。Id
= 3980 Customer Exists (0.2ms) SELECT 1 AS one FROMcustomers
WHERE (customers
.External_key
= 'CB001822' ANDcustomers
.Id
! = 3981 ) LIMIT 1 (0.1ms) UPDATEcustomers
SETvalidity
= 0 ,updated_at
= '2013- 11 -29 10:53:33 'WHEREcustomers
.Id
= 3981 (2.2ms) SELECT COUNT (*) FROMcustomers
WHERE (external_key NOT IN ('12312')) (0.1ms) ROLLBACK
同様に ROLLBACK が最後に表示されますが、すべてのクライアントは引き続き有効です: (