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Stefan Frede

2009-Feb-24 21:27 UTC

Multiple models one form and a one-to-one relationship

Hi!

I''ve got a not so unfamiliar multiple models in one form problem. Due
to the complex forms railscast I''ve got it up and running for a one-to-
many relationship but now I have a one-to-one relationship and I
didn''t get it done.

Here is my code, perhaps someone can take a look and give me a hint
what''s wrong. I put what is going wrong into the code where I think it
is belonging to. And I don''t know if it matters but I''m
running Rails
2.1.1.

##
# Model

class Subscription < ActiveRecord::Base
  belongs_to :user

  def user=(attributes)
    ##
    # !!! Here is something wrong
    # - I get a Hash with all my fields here
    # - attributes belongs to class HashWithIndifferentAccess
    # - Whith self I get the error „undefined method
`stringify_keys!''...“
    # - Without self the subscription model is saved without the user
model

    self.build_user(attributes)
  end
end

class Subscription < ActiveRecord::Base
  has_one :subscription
end

##
# Controller

class SubscriptionsController < ApplicationController
  def new
    @subscription = Subscription.new
    @subscription.build_user

    respond_to do |wants|
      wants.html
      wants.xml  { render :xml => @subscription }
    end
  end

  def create
    @subscription = Subscription.new(params[:subscription])

    respond_to do |wants|
      if @subscription.save
        flash[:notice] = ''Subscription was successfully
created.''
        wants.html { redirect_to root_url }
        wants.xml  { render :xml => @subscription, :status
=> :created, :location => @payment }
      else
        wants.html { render :action => "new" }
        wants.xml  { render :xml => @subscription.errors, :status
=> :unprocessable_entity }
      end
    end
  end
end

##
# View (Haml syntax)

- form_for :subscription, @subscription, :url => subscriptions_path do
|subscription_form|

  ... subscription fields

  - subscription_form.fields_for :user do |user_form|

    ... user fields

Every help is appreciated. Thanks in advance.

Regards,
Stefan
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Sarah Mei

2009-Feb-24 22:05 UTC

head link

Re: Multiple models one form and a one-to-one relationship

In a has_one/belongs_to association, I don''t think you need the
usermethod. What happens if you take it out completely?

On Tue, Feb 24, 2009 at 1:27 PM, Stefan Frede
<sfrede-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:>
> Hi!
>
> I''ve got a not so unfamiliar multiple models in one form problem.
Due
> to the complex forms railscast I''ve got it up and running for a
one-to-
> many relationship but now I have a one-to-one relationship and I
> didn''t get it done.
>
> Here is my code, perhaps someone can take a look and give me a hint
> what''s wrong. I put what is going wrong into the code where I
think it
> is belonging to. And I don''t know if it matters but I''m
running Rails
> 2.1.1.
>
> ##
> # Model
>
> class Subscription < ActiveRecord::Base
>  belongs_to :user
>
>  def user=(attributes)
>    ##
>    # !!! Here is something wrong
>    # - I get a Hash with all my fields here
>    # - attributes belongs to class HashWithIndifferentAccess
>    # - Whith self I get the error „undefined method
> `stringify_keys!''...“
>    # - Without self the subscription model is saved without the user
> model
>
>    self.build_user(attributes)
>  end
> end
>
> class Subscription < ActiveRecord::Base
>  has_one :subscription
> end
>
> ##
> # Controller
>
> class SubscriptionsController < ApplicationController
>  def new
>    @subscription = Subscription.new
>    -9/ybXWNEfnWxtqrtir1q5Srx10fhMbqb@public.gmane.org_user
>
>    respond_to do |wants|
>      wants.html
>      wants.xml  { render :xml => @subscription }
>    end
>  end
>
>  def create
>    @subscription = Subscription.new(params[:subscription])
>
>    respond_to do |wants|
>      if @subscription.save
>        flash[:notice] = ''Subscription was successfully
created.''
>        wants.html { redirect_to root_url }
>        wants.xml  { render :xml => @subscription, :status
> => :created, :location => @payment }
>      else
>        wants.html { render :action => "new" }
>        wants.xml  { render :xml => @subscription.errors, :status
> => :unprocessable_entity }
>      end
>    end
>  end
> end
>
> ##
> # View (Haml syntax)
>
> - form_for :subscription, @subscription, :url => subscriptions_path do
> |subscription_form|
>
>  ... subscription fields
>
>  - subscription_form.fields_for :user do |user_form|
>
>    ... user fields
>
> Every help is appreciated. Thanks in advance.
>
> Regards,
> Stefan
> >
>
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2009-Feb-24 22:07 UTC

head link

Re: Multiple models one form and a one-to-one relationship

Try self.build_user(:name=>attributes) , name or whatever the column
is.



On Feb 24, 3:27 pm, Stefan Frede
<sfr...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Hi!
>
> I''ve got a not so unfamiliar multiple models in one form problem.
Due
> to the complex forms railscast I''ve got it up and running for a
one-to-
> many relationship but now I have a one-to-one relationship and I
> didn''t get it done.
>
> Here is my code, perhaps someone can take a look and give me a hint
> what''s wrong. I put what is going wrong into the code where I
think it
> is belonging to. And I don''t know if it matters but I''m
running Rails
> 2.1.1.
>
> ##
> # Model
>
> class Subscription < ActiveRecord::Base
>   belongs_to :user
>
>   def user=(attributes)
>     ##
>     # !!! Here is something wrong
>     # - I get a Hash with all my fields here
>     # - attributes belongs to class HashWithIndifferentAccess
>     # - Whith self I get the error „undefined method
> `stringify_keys!''...“
>     # - Without self the subscription model is saved without the user
> model
>
>     self.build_user(attributes)
>   end
> end
>
> class Subscription < ActiveRecord::Base
>   has_one :subscription
> end
>
> ##
> # Controller
>
> class SubscriptionsController < ApplicationController
>   def new
>     @subscription = Subscription.new
>     @subscription.build_user
>
>     respond_to do |wants|
>       wants.html
>       wants.xml  { render :xml => @subscription }
>     end
>   end
>
>   def create
>     @subscription = Subscription.new(params[:subscription])
>
>     respond_to do |wants|
>       if @subscription.save
>         flash[:notice] = ''Subscription was successfully
created.''
>         wants.html { redirect_to root_url }
>         wants.xml  { render :xml => @subscription, :status
> => :created, :location => @payment }
>       else
>         wants.html { render :action => "new" }
>         wants.xml  { render :xml => @subscription.errors, :status
> => :unprocessable_entity }
>       end
>     end
>   end
> end
>
> ##
> # View (Haml syntax)
>
> - form_for :subscription, @subscription, :url => subscriptions_path do
> |subscription_form|
>
>   ... subscription fields
>
>   - subscription_form.fields_for :user do |user_form|
>
>     ... user fields
>
> Every help is appreciated. Thanks in advance.
>
> Regards,
> Stefan--~--~---------~--~----~------------~-------~--~----~
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Stefan Frede

2009-Feb-24 22:30 UTC

head link

Re: Multiple models one form and a one-to-one relationship

Without the user method in the subscription model I get the following
error:

User(#17369790) expected, got HashWithIndifferentAccess(#2700040)

I''ve changed the user method:

def user=(attributes)
  attributes.each do |attribute|
    self.build_user(attribute.first => attribute.last)
  end
end

I get no error and the subscripton model is saved, but not the user
model.

These are my parameters:

..."subscription"=>{
  "user"=>{
    "name"=>"vorname",
    "city"=>"ort",
    "postal_code"=>"plz",
    "street"=>"straße",
    "phone"=>"telefon",
    "c_o"=>"c/o (optional)",
    "surname"=>"nachname",
    "comment"=>"kommentar (optional)",
    "email"=>"e-mail"
  }
}...

For me they are not looking that bad.

On 24 Feb., 23:07, Me <chabg...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Try self.build_user(:name=>attributes) , name or whatever the column
> is.
>
> On Feb 24, 3:27 pm, Stefan Frede
<sfr...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > Hi!
>
> > I''ve got a not so unfamiliar multiple models in one form
problem. Due
> > to the complex forms railscast I''ve got it up and running for
a one-to-
> > many relationship but now I have a one-to-one relationship and I
> > didn''t get it done.
>
> > Here is my code, perhaps someone can take a look and give me a hint
> > what''s wrong. I put what is going wrong into the code where I
think it
> > is belonging to. And I don''t know if it matters but
I''m running Rails
> > 2.1.1.
>
> > ##
> > # Model
>
> > class Subscription < ActiveRecord::Base
> >   belongs_to :user
>
> >   def user=(attributes)
> >     ##
> >     # !!! Here is something wrong
> >     # - I get a Hash with all my fields here
> >     # - attributes belongs to class HashWithIndifferentAccess
> >     # - Whith self I get the error „undefined method
> > `stringify_keys!''...“
> >     # - Without self the subscription model is saved without the user
> > model
>
> >     self.build_user(attributes)
> >   end
> > end
>
> > class Subscription < ActiveRecord::Base
> >   has_one :subscription
> > end
>
> > ##
> > # Controller
>
> > class SubscriptionsController < ApplicationController
> >   def new
> >     @subscription = Subscription.new
> >     @subscription.build_user
>
> >     respond_to do |wants|
> >       wants.html
> >       wants.xml  { render :xml => @subscription }
> >     end
> >   end
>
> >   def create
> >     @subscription = Subscription.new(params[:subscription])
>
> >     respond_to do |wants|
> >       if @subscription.save
> >         flash[:notice] = ''Subscription was successfully
created.''
> >         wants.html { redirect_to root_url }
> >         wants.xml  { render :xml => @subscription, :status
> > => :created, :location => @payment }
> >       else
> >         wants.html { render :action => "new" }
> >         wants.xml  { render :xml => @subscription.errors, :status
> > => :unprocessable_entity }
> >       end
> >     end
> >   end
> > end
>
> > ##
> > # View (Haml syntax)
>
> > - form_for :subscription, @subscription, :url => subscriptions_path
do
> > |subscription_form|
>
> >   ... subscription fields
>
> >   - subscription_form.fields_for :user do |user_form|
>
> >     ... user fields
>
> > Every help is appreciated. Thanks in advance.
>
> > Regards,
> > Stefan--~--~---------~--~----~------------~-------~--~----~
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Rails - Feb 2009 - Multiple models one form and a one-to-one relationship

Multiple models one form and a one-to-one relationship

Re: Multiple models one form and a one-to-one relationship

Re: Multiple models one form and a one-to-one relationship

Re: Multiple models one form and a one-to-one relationship