On 11 November 2011 09:50, Mauro <[email protected]> wrote: > Example: > > accepts_nested_attributes_for :tags, :allow_destroy => :true, > :reject_if => proc { |attrs| attrs.all? { |k, v| v.blank? } } > > :reject_if prevents saving new tags that do not have any attributes filled > in. > But if in Tag model I use validates contraints it's the same thing? > So I can avoid :reject_if.
reject_if allows you to say, in the parent model, not to even try saving the nested objects under some conditions. Validations in the nested model class will make the save fail, so there is a subtle difference. Colin > > -- > 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. > > -- gplus.to/clanlaw -- 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.
