I'm using formtastic, I see that it seems simple enough with the standard rails forms. I suppose I can ask on a formtastic gorup to see what they say.
Thanks On Tue, Jun 15, 2010 at 1:20 AM, Rick DeNatale <[email protected]>wrote: > On Mon, Jun 14, 2010 at 1:55 AM, Ali <[email protected]> wrote: > > Hi guys. > > > > How do you update nested attributes for one object of a > > has_many :through relationship? So I have an entity model and this > > model can have many fact_values. The difference between fact and > > fact_value is that the latter has an extra value attribute. This is > > because facts can be common among many entities, but each entity can > > have its own unique value for a specific fact. So my models are the > > following: > > > > class Entity > > has_many :fact_values > > has_many :facts, :through => :fact_values > > end > > > > class FactValue > > belongs_to :entity > > belongs_to :fact > > end > > > > class Fact > > has_many :fact_values > > has_many :entities, :through => :fact_values > > end > > > > Now I've specified that Entity > > accepts_nested_attributes_for :fact_values. But I want it to accept > > nested attributes for a single (pre-defined) fact_value and update > > only that fact_value. The way I'm going about it right now is to have > > a virtual attribute in my Entity model representing that one > > fact_value and update that fact_value in the entity controller. I'm > > wondering if there is any automatic way to accomplish what I'm trying > > to do? > > Perhaps something along the lines of > > class Entity > > has_many :fact_values > has_many :facts, :through => :fact_values > belongs_to :anointed_fact_value > > accepts_nested_attributes_for :fact_values, :reject_if => > :not_updatable_fact_value > > def not_updatable_fact_value(attrs) > attrs[:id] != anointed_fact_value_id > end > end > > > > -- > Rick DeNatale > > Blog: http://talklikeaduck.denhaven2.com/ > Github: http://github.com/rubyredrick > Twitter: @RickDeNatale > WWR: http://www.workingwithrails.com/person/9021-rick-denatale > LinkedIn: http://www.linkedin.com/in/rickdenatale > > -- > 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]<rubyonrails-talk%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/rubyonrails-talk?hl=en. > > -- 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.
