Check out Fred's earlier example. Using the count of courses with only one courses_times row in conjunction with the having clause you can filter out courses scheduled on more than one day.
The only potential problem I could foresee with this would be if a course could be scheduled for multiple times on the same day. But that's not reflected in the data model you posted so it shouldn't be an issue. On Jan 5, 1:50 pm, Fernando Leandro <[email protected]> wrote: > yes.. its exactly this... but how can i do that in another way? -- 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.
