D For A Web Developer

[Nick Sabalausky via Digitalmars-d]

On 4/30/2014 3:53 PM, Jacob Carlborg wrote:
> On 2014-04-30 17:04, Adam D. Ruppe wrote:
>>
>> You also have problems like race conditions:
>>
>> account = BankAccount.find(1)
>> account.balance -= 10
>> account.save!
>
> I think most Rails application are run single threaded. But with
> multiple processes instead.
>

Aren't you talking about databases? Single-threading won't save you from 
races there unless the DBMS itself is single-threaded (which would be a 
pretty undesirable DBMS).

Or does the ORM above automatically lock the row/table behind-the-scenes?