On Sat, Feb 20, 2010 at 9:14 PM, Daniel Guettler
<[email protected]>wrote:

> What are you trying to prove here?
> I'm not using ActiveRecord and my Session class IS NOT inheriting from
> ActiveRecord::Base either
>
>
I'm trying to prove to you that ActiveModel works without
ActiveRecord::Base.  It
works so much so I'm building ActiveRecord style interface to work with
Maglev.
Next, in your initial e-mail to the mailing list, you mentioned that there
was a possible
bug in Rails 3 routing.  What does this have to do with the possible bug in
routing?

-Conrad


> Session.anchestors => [Session, ActiveModel::Validations,
> ActiveSupport::Callbacks, Object, PP::ObjectMixin,
> JSON::Ext::Generator::GeneratorMethods::Object,
> ActiveSupport::Dependencies::Loadable, Arel::Sql::ObjectExtensions,
> Arel::ObjectExtensions, Kernel, BasicObject]
>
> I know how to add validations to it etc. (not included in this post to
> keep the examples lean) the point I'm trying to make here is the
> dependency of form_for on the :new_record? method.
>
>



>
> On Feb 20, 10:04 pm, Conrad Taylor <[email protected]> wrote:
> > On Sat, Feb 20, 2010 at 6:56 PM, Conrad Taylor <[email protected]>
> wrote:
> > > On Sat, Feb 20, 2010 at 5:19 PM, Daniel Guettler <
> > > [email protected]> wrote:
> >
> > >> Ok but I'm not using an ActiveRecord instance here. I just temporarily
> > >> made Session inherit from ActiveRecord::Base for testing purpose. And
> > >> the attr_accessors didn't override anything since the table I created
> > >> only contained an id attribute.
> >
> > > Session class inherits from ActiveRecord::Base.  Thus, if you create an
> > > instance(s) of
> > > Session, then each instance is a type of ActiveRecord::Base.
> >
> > >> The idea here was to just create a normal class (not inheriting from
> > >> ActiveRecord) and to only use the validations module. The session is
> > >> not going to be stored in the database.
> >
> > > Then you can simply do the following:
> >
> > > *require 'active_model'
> >
> > > class Session
> > >   include ActiveModel::Validations
> >
> > >   validates_presence_of :login
> > >   validates_presence_of :password
> >
> > >   attr_accessor :login, :password
> >
> > >   def initialize( attributes = {})
> > >     @attributes = attributes
> > >   end
> >
> > > end
> >
> > > puts "valid session"
> > > puts
> >
> > > session = Session.new( :login => "foo", :password => "bar" )
> > > puts session.valid? # => false
> > > puts session.password = "foobar"
> > > puts session.valid? # => true
> > > puts session.errors
> >
> > > puts
> >
> > > puts "invalid session"
> > > puts
> > > session2 = Session.new( :login => "", :password => "bar" )
> > > puts session2.valid? # => false
> > > puts session2.password = "foobar"
> > > puts session2.valid? # => true
> > > puts session2*
> >
> > > *
> > > *
> > > Good luck,
> >
> > > -Conrad
> >
> > Here's a better version:
> >
> > require 'active_model'
> >
> > class Session
> >
> >   include ActiveModel::Validations
> >
> >   validates_presence_of :login
> >   validates_presence_of :password
> >
> >   attr_accessor :login, :password
> >
> >   def initialize( attributes = {})
> >     @attributes = attributes
> >   end
> >
> > end
> >
> > puts "valid session"
> > puts
> >
> > session = Session.new
> > puts session.login = 'foo'
> > puts session.password = 'bar'
> > puts session.valid? # => true
> > puts session.errors
> >
> > puts
> >
> > puts "invalid session"
> > puts
> > session2 = Session.new
> > puts session2.password = "bar"
> > puts session2.valid? # => true
> > puts session2.errors
> >
> > I wish that this helps.
> >
> > Good luck,
> >
> > -Conrad
> >
> >
> >
> >
> >
> > >> The original implementation of Session was:
> >
> > >> class Session
> > >>   include ActiveModel::Validations
> > >>  attr_accessor :login, :password, :id
> > >> end
> >
> > >> On Feb 20, 7:53 pm, Conrad Taylor <[email protected]> wrote:
> > >> > On Sat, Feb 20, 2010 at 4:49 PM, Conrad Taylor <[email protected]>
> > >> wrote:
> > >> > > On Sat, Feb 20, 2010 at 4:38 PM, Daniel Guettler <
> > >> > > [email protected]> wrote:
> >
> > >> > >> Yes, this is correct and expected, the question to me is rather
> if it
> > >> > >> is expected behavior to assume an update operation if the object
> > >> > >> doesn't respond to :new_record?
> >
> > >> > > Yes, this is expected because AR instance is either new (i.e.
> hasn't
> > >> been
> > >> > > saved) or
> > >> > > not new (i.e. has been saved).  One can easily test this in the
> Rails
> > >> > > console.
> >
> > >> > > -Conrad
> >
> > >> > irb(main):026:0> post = Post.new
> > >> > => #<Post id: nil, title: nil, body: nil, created_at: nil,
> updated_at:
> > >> nil>
> > >> > irb(main):027:0> post.new_record?
> > >> > => true
> > >> > irb(main):028:0> post.save
> > >> > => true
> > >> > irb(main):029:0> post.new_record?
> > >> > => false
> >
> > >> > -Conrad
> >
> > >> > > On Feb 20, 7:34 pm, Conrad Taylor <[email protected]> wrote:
> > >> > >> > On Sat, Feb 20, 2010 at 4:32 PM, Daniel Guettler
> > >> > >> > <[email protected]>wrote:
> >
> > >> > >> > > So to solve this, the reason why this ends up using :method
> =>
> > >> :put is
> > >> > >> > > the following code in "apply_form_for_options!":
> >
> > >> > >> > >        html_options =
> > >> > >> > >          if object.respond_to?(:new_record?) &&
> > >> object.new_record?
> > >> > >> > >            { :class  => dom_class(object, :new),  :id =>
> > >> > >> > > dom_id(object), :method => :post }
> > >> > >> > >          else
> > >> > >> > >            { :class  => dom_class(object, :edit), :id =>
> > >> > >> > > dom_id(object, :edit), :method => :put }
> > >> > >> > >          end
> >
> > >> > >> > Yes, this is basic Rails.  PUT HTTP verb translates to an
> update
> > >> action.
> >
> > >> > >> > -Conrad
> >
> > >> > >> > > which means for every object not responding to new_record? it
> > >> will
> > >> > >> > > automatically set the method to PUT
> > >> > >> > > since the options are reverse merged later with the provided
> > >> options
> > >> > >> > > this can be avoided by setting explicit :html => { :method =>
> > >> :post }
> > >> > >> > > in form_for - not sure though if this is entended behavior...
> >
> > >> > >> > > If someone has some inside view comments would be
> appreciated...
> >
> > >> > >> > > On Feb 20, 7:24 pm, Daniel Guettler <
> [email protected]>
> > >> > >> wrote:
> > >> > >> > > > Ok what is really happening here is that
> for_for(Session.new,
> > >> :url
> > >> > >> =>
> > >> > >> > > > login_path) includes a hidden input field setting _method
> to
> > >> put
> > >> > >> which
> > >> > >> > > > correctly complains about a routing error since no route is
> > >> defined
> > >> > >> > > > for PUT /login
> > >> > >> > > > Remaining question to me is why does form_for set the
> method to
> > >> PUT
> >
> > >> > >> > > > Session.new.new_record? => NoMethodError
> > >> > >> > > > Session.new.id => nil
> >
> > >> > >> > > > On Feb 20, 7:17 pm, Daniel Guettler <
> [email protected]
> >
> > >> > >> wrote:
> >
> > >> > >> > > > > ah the last bit of the previous message should have not
> been
> > >> in
> > >> > >> there,
> > >> > >> > > > > but should have been in this message.
> >
> > >> > >> > > > > Changing the Session class to:
> >
> > >> > >> > > > > class Session < ActiveRecord::Base
> > >> > >> > > > > end
> >
> > >> > >> > > > > and adding a table to the database (which is not the goal
> > >> here
> > >> > >> just a
> > >> > >> > > > > workaround for figuring out what's going on here) makes
> the
> > >> > >> everything
> > >> > >> > > > > work correctly with:
> >
> > >> > >> > > > > form_for(Session.new, :url => login_path)
> >
> > >> > >> > > > > This clearly shouldn't be related but this is what I have
> so
> > >> > >> far...
> >
> > >> > >> > > > > On Feb 20, 7:11 pm, Daniel Guettler <
> > >> [email protected]>
> > >> > >> wrote:
> >
> > >> > >> > > > > > not quite the routes you are providing are not
> equivalent
> > >> to
> > >> > >> what I
> > >> > >> > > > > > wanted to archive and they are the only routes in the
> > >> routing
> > >> > >> file
> > >> > >> > > for
> > >> > >> > > > > > this test. What I want is:
> >
> > >> > >> > > > > > GET /login should be resolved to session#new
> > >> > >> > > > > > POST /login should be resolved to session#create
> >
> > >> > >> > > > > > possible ways of doing so are according to the
> > >> action_dispatch/
> > >> > >> > > > > > routing.rb file
> >
> > >> > >> > > > > > get 'login' => 'session#new'
> > >> > >> > > > > > post 'login' => 'session#create', :as => :login
> >
> > >> > >> > > > > > or when using match
> >
> > >> > >> > > > > > match 'login' => 'session#new', :via => :get
> > >> > >> > > > > > match 'login' => 'session#create', :via => :post
> >
> > >> > >> > > > > > the above two examples are equivalent since get and
> post
> > >> just
> > >> > >> add
> > >> > >> > > > > > the :via => :method to the options and call match
> >
> > >> > >> > > > > > class Session < ActiveRecord::Base
> > >> > >> > > > > >   # include ActiveModel::Validations
> >
> > >> > >> > > > > >   attr_accessor :login, :password #, :id
> >
> > >> > >> > > > > > end
> >
> > >> > >> > > > > > On Feb 20, 7:02 pm, Conrad Taylor <[email protected]>
> > >> wrote:
> >
> > >> > >> > > > > > > On Sat, Feb 20, 2010 at 4:00 PM, Conrad Taylor <
> > >> > >> [email protected]>
> > >> > >> > > wrote:
> > >> > >> > > > > > > > On Sat, Feb 20, 2010 at 3:02 PM, Daniel Guettler <
> > >> > >> > > > > > > > [email protected]> wrote:
> >
> > >> > >> > > > > > > >> Hi, I just ran into this
> > >> ActionController::RoutingError and
> > >> > >> just
> > >> > >> > > > > > > >> wanted to check if someone can confirm this as a
> bug
> > >> in the
> > >> > >> > > Rails 3
> > >> > >> > > > > > > >> beta gem.
> >
> > >> > >> > > > > > > >> config/routes.rb contains:
> >
> > >> > >> > > > > > > >>  get   'login'     => 'session#new'
> > >> > >> > > > > > > >>  post  'login'     => 'session#create',  :as =>
> :login
> >
> > >> > >> > > > > > > > Daniel, can you post the complete route?  The 'get'
> and
> > >> > >> 'post'
> > >> > >> > > HTTP verbs
> > >> > >> > > > > > > > should exist within a member or collection block of
> a
> > >> > >> resource
> > >> > >> > > block.  For
> > >> > >> > > > > > > > example,
> >
> > >> > >> > > > > > > > resources :posts do
> > >> > >> > > > > > > >    collection do
> > >> > >> > > > > > > >       get :search
> > >> > >> > > > > > > >    end
> > >> > >> > > > > > > > end
> >
> > >> > >> > > > > > > > or
> >
> > >> > >> > > > > > > > resources :posts do
> > >> > >> > > > > > > >   get :search, :on => :collection
> > >> > >> > > > > > > > end
> >
> > >> > >> > > > > > > > Note:  both of the examples are equivalent.
> >
> > >> > >> > > > > > > > Next, your routes look ambiguous meaning that you
> could
> > >> have
> > >> > >> > > easily
> > >> > >> > > > > > > > implemented this as follows:
> >
> > >> > >> > > > > > > > match 'login' => "user_sessions#lnew",     :as =>
> > >> :login
> >
> > >> > >> > > > > > > Correction:  match 'login' => "user_sessions#new",
> > >> :as =>
> > >> > >> > > :login
> >
> > >> > >> > > > > > > > match 'login' => "user_sessions#destroy", :as =>
> > >> :logout
> >
> > >> > >> > > > > > > > Lastly, your URLs will look like the following:
> >
> > >> > >> > > > > > > >http://localhost:3000/logout
> > >> > >> > > > > > > >http://localhost:3000/login
> >
> > >> > >> > > > > > > > Good luck,
> >
> > >> > >> > > > > > > > -Conrad
> >
> > >> > >> > > > > > > >> GET /login works fine:
> >
> > >> > >> > > > > > > >> Started GET "/login" for 127.0.0.1 at 2010-02-20
> > >> 17:45:49
> > >> > >> > > > > > > >>  SQL (0.3ms)  SET SQL_AUTO_IS_NULL=0
> > >> > >> > > > > > > >>  Processing by SessionController#new as HTML
> > >> > >> > > > > > > >> Rendered session/new.html.haml within
> > >> > >> > > layouts/application.html.haml
> > >> > >> > > > > > > >> (77.9ms)
> > >> > >> > > > > > > >> Completed in 85ms (Views: 84.1ms | ActiveRecord:
> > >> 0.2ms)
> > >> > >> with 200
> >
> > >> > >> > > > > > > >> However POST /login
> >
> > ...
> >
> > read more ยป
>
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