Looking forward to learning how to update the models. Also, for some reason instance_id is not being set in the db with the following:
I checked the logs, it shows "WARNING: Can't mass-assign protected attributes: instance_id" def create @book = current_user.books.build(params[:book].merge(:instance_id => current_user.instance_id)) . . end On Sep 8, 8:32 am, nobosh <[email protected]> wrote: > Hi radhames, thanks for the feedback. Given that I'm new and the above > is not correct, would it be possible to see what you suggest for: > > class Instance < ActiveRecord::Base > has_many :users > has_many :books > end > class User < ActiveRecord::Base > belongs_to :instance > has_many :books, :order => "created_at DESC" > has_many :instance_books, :through > => :instance, :source => :books, > :order => "created_at > DESC" > . > . > end > class Book < ActiveRecord::Base > belongs_to :user > belongs_to :instance > end > > The relationship goes like this: Instance > User > Book > Instance is a collection of user's from a company, based on their > domain name example (abc.com) > The idea is for only abc.com user's to see their books, which is why > the books table has a instance_id value > > Recommendations? on the above? > > On Sep 8, 8:04 am, radhames brito <[email protected]> wrote: > > > > > you are using has many throug the wrong way , that is used for many to many > > associations and i think you only have one to many in every model > > > and only the models that have belongs_to should have a foreing key > > > On Wed, Sep 8, 2010 at 11:00 AM, radhames brito <[email protected]> wrote: > > > create takes a hash and params[:book] is a hash then you are adding a > > > second hash with :intance => current_user.intance that is why is says you > > > are passing 2 arguments > > > > a good idea try doing this > > > > @book = current_user.book.new(params[:book]) > > > @book = current_user.instance > > > if @book.save > > > blah blah blah .... > > > > On Wed, Sep 8, 2010 at 10:39 AM, Adam <[email protected]> wrote: > > > >> On Wed, Sep 8, 2010 at 12:55 AM, nobosh <[email protected]> wrote: > > > >>> I'm trying to work out your suggestion on how to not have a > > >>> instance_id in books. can you take a look at let me know what's wrong > > >>> and if this is what you suggest? thxs! > > > >>> class Instance < ActiveRecord::Base > > >>> has_many :users > > >>> has_many :books > > >>> end > > > >>> class User < ActiveRecord::Base > > >>> belongs_to :instance > > >>> has_many :books, :order => "created_at DESC" > > >>> has_many :instance_books, :through => :instance, :source > > >>> => :books, > > >>> :order => "created_at > > >>> DESC" > > >>> . > > >>> . > > >>> end > > > >>> class Note < ActiveRecord::Base > > >>> belongs_to :user > > >>> belongs_to :instance > > >>> end > > > >>> .... Then to actually get all the notes for instance_id = 1 > > > >>> class NotesController < ApplicationController > > >>> def index > > >>> �...@books = current_user.instance_books > > >>> . > > >>> end > > >>> . > > >>> . > > >>> end > > > >>> current_user.instance_books doesn't return the right results. Ideas? > > >>> thxs > > > >> I don't think has_many :through will work that way - it needs a real join > > >> table as far as I know. One with two belongs_to relationships. If you're > > >> wanting to keep instance_id on books, your original code can work, but > > >> Book > > >> belongs_to Instance, not has_one Instance :through User. If you want to > > >> ensure the instance is the same as the user's, you can add a validation. > > >> > validate :instance_is_same_as_user_instance > > >> > def instance_is_same_as_user_instance > > >> > unless self.user and self.instance == self.user.instance > > >> > errors.add(:instance, "must be the same as the instance on this > > >> Book's User") > > >> > end > > >> > end > > > >> -- > > >> 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%2Bunsubscrib > > >> [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.
