Whoops! Tiny correction on the SQL query examples, they should be: Union:
User.all(:active => true) | User.all(:confirmed => false) User.all(:active => true) + User.all(:confirmed => false) # => SELECT * FROM users WHERE active = true OR confirmed = false Intersection: User.all(:active => true) & User.all(:confirmed => false) # => SELECT * FROM users WHERE active = true AND confirmed = false Difference: User.all(:active => true) - User.all(:confirmed => false) # => SELECT * FROM users WHERE active = true AND NOT(confirmed = false) That's what I get for cutting and pasting ;) -- Dan (dkubb) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "DataMapper" group. To post to this group, send email to datamapper@googlegroups.com To unsubscribe from this group, send email to datamapper+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/datamapper?hl=en -~----------~----~----~----~------~----~------~--~---