Maurício Linhares wrote: > On Wed, Sep 10, 2008 at 1:42 PM, Difei Zhao > <[EMAIL PROTECTED]> wrote: >> Maur�cio proposed the increment_counter method, may I assume that is >> atomic? > > This method does something like this: > > "update model_table_name set counter_column = counter_column + 1 where > id = 'your row id' " > > So, it's up to your database (and the isolation level that it's using) > to handle the atomicity of this call. > > Put simply, it will usually work, unless your database has some > serious concurrency issues.
yeah, as you and Fred said, I noticed the SQL UPDATE statement in the log. > > -- > Maur�cio Linhares > http://alinhavado.wordpress.com/ (pt-br) | http://blog.codevader.com/ > (en) > Jo�o Pessoa, PB, +55 83 8867-7208 -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
