I have three tables, Invoices, Projects, and Managers. Each manager has many projects. Each project has many invoices. When displaying a list of the invoices, I am using: Invoice.find(:all, :include => [:project]) Since the list shows information from the project table. (For example, a table showing Invoice Date, Project Name). However, I'd also like to show the manager name. Theoretically, i'd like to be able do an eager loading of both :project, and :manager. Right now, my list generates an individual SQL query for each invoice to display the manager name. Trying to do :include => [:project, :manager] obviously doesn't work, as the manager_id is linked into the Projects table, not Invoices.
on 2006-02-10 06:14
on 2006-02-10 06:34
In this case you should fall back to using find_by_sql method. Kent.