On 18 May 2010 16:58, chewmanfoo <[email protected]> wrote: > Wow ok. > > So, the following: > > Class Shape < ActiveRecord::Base > attr_accessible :color_id > belongs_to :color > end > > Class Color < ActiveRecord::Base > has_many :shapes > end > > Now, in the console: > > sh = Shape.last > ... > sh.color_id > 12 > sh.color.name > "red" > ... > c = Color.find(12) > c.name = "blue" > c.save! > ... > sh.color.name > "blue"
Why would you *ever* change a colour's name? If it's blue it's blue. It's immutable; atomic. It's a value in a *lookup* table. If you want to store the "name" of the colour instead of its id (because you find yourself often doing hideous things like changing the values in lookups), then do so; you'll just have a poor, inflexible DB. -- 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.
