I solved my problem by departing from the guidance at http://api.rubyonrails.org/classes/ActiveRecord/NestedAttributes/ClassMethods.html
Instead of... parent_instance.reload.blond_children # this resulted in blond_children == nil ...I used... refreshed_parent_instance = Parent.find(:last) refreshed_parent_instance.blond_children.blah_blah_blah... It seems, then that the problem I encountered concerns some departure my association structure takes from the standard model presumed in the api, where a reload should be equivalent to a find. Lille On Oct 27, 8:13 pm, Lille <[email protected]> wrote: > Hi, > > I have a parent model like this: > > class Parent < ActiveRecord::Base > belongs_to :grand_parent > has_many :blond_children, :dependent => :destroy > has_many :brunette_children, :dependent => :destroy > has_many :dogs, :dependent => :destroy > > accepts_nested_attributes_for :blond_children, :brunette_children, :dogs, > :allow_destroy => true > ... > end > > I can't seem to get the attributes of the children to change with > attempts like the following > > parent_instance.blond_children_attributes = {"1"=>{:_destroy=>true}, > "2"=>{:_destroy=>true}} > parent_instance.save > parent_instance.reload.blond_children.should == <some new number > reflecting deletion> > > I've also tried this with hashes and using #update_attributes on the > parent_instance. > > I keep experimenting, but I can't get expected results. I'm wondering > if maybe the problems are: > > 1) on an update, all children and their attributes need to be > explicitly mentioned, even if the value is "" > 2) where should the parent and child ids appear in any attempts to > update child attributes? > > I might guess some readers have banged their head on something like > this in the past, any pointers? > > Thanks, > > Lille -- 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.
