Issue rendering fields_for in 1 to 1 mapping nested model form view

rubyonrails-talk
1

I am new to rails, coming from .net. I am having the issue for 1:1 mapping nested model view the form will not render.

I have the code below. note the address object is created. I dont see the label and text box. the person form render without any issue. the debug works outside the fields_for.

Any help is appreciated

thanks Geo

Model

2

I am new to rails, coming from .net. I am having the issue for 1:1 mapping nested model view the form will not render.

I have the code below. note the address object is created. I dont see the label and text box. the person form render without any issue. the debug works outside the fields_for.

Any help is appreciated

thanks Geo

Model

class Person < ActiveRecord::Base has_one :address accepts_nested_attributes_for :address end

class Address < ActiveRecord::Base belongs_to :person end

Controller

GET /people/new # GET /people/new.xml def new @person = Person.new @address = @person.address = @person.build_address

respond_to do |format| format.html # new.html.erb format.xml { render :xml => @person } end end

View: _form.html.erb

<%= form_for(@person) do |person_form| %> <% if @person.errors.any? %> <div id="error_explanation"> <h2><%= pluralize(@person.errors.count, "error") %> prohibited this person from being saved:</h2>s <ul> <% @person.errors.full_messages.each do |msg| %> <li><%= msg %></li> <% end %> </ul> </div> <% end %> <div class="field"> <%= person_form.label :name %><br /> <%= person_form.text_field :name %> </div> <div class="field"> <%= person_form.label :email %><br /> <%= person_form.text_field :email %> </div> <div class="field"> <%= person_form.label :phone %><br /> <%= person_form.text_field :phone %> </div> <h1>outside</h1> <%= debug(@person.address.attributes) %> <%= debug(@person.address) %> <% person_form.fields_for @address do |address_form| %>

I think that should be :address not @address, it specifies the association to use.

Colin

3

I tried address still not able to display the address form.

<% person_form.fields_for :address do |address_form| %>

thanks Geo

4

I tried address still not able to display the address form.

<% person_form.fields_for :address do |address_form| %>

Please don't top post, insert your comments at appropriate points in the previous message. It makes it easier to follow the thread. Thanks.

What do you mean by not able to display address form? Is there an error shown? If not then what does the generated html look like? If the html is not correct then what is wrong with it?

Colin

5

> I tried address still not able to display the address form.

> <% person_form.fields_for :address do |address_form| %>

Please don't top post, insert your comments at appropriate points in the previous message. It makes it easier to follow the thread. Thanks.

What do you mean by not able to display address form? Is there an error shown? If not then what does the generated html look like? If the html is not correct then what is wrong with it?

      basically the code inside the <% person_form.fields_for :address do |address_form| %> is not executed. i.e in the html page the label and edit boxes for address is not displayed to the user. and if you look at view source you dont see the html tags for them. if you move this code below inside fields_for, no object information is displayed.

<%= debug(@person.address.attributes) %>   <%= debug(@person.address) %>

      if there is better way (work around) to handle one-one mapping. please let me know as well.

6

It should be <%= person_form.... %>, I should have seen that before. Without the = it runs the code but does not put the result into the page.

Colin

7

>> > I tried address still not able to display the address form.

>> > <% person_form.fields_for :address do |address_form| %>

>> Please don't top post, insert your comments at appropriate points in >> the previous message. It makes it easier to follow the thread. >> Thanks.

>> What do you mean by not able to display address form? Is there an >> error shown? If not then what does the generated html look like? If >> the html is not correct then what is wrong with it?

> basically the code inside the <% > person_form.fields_for :address do |address_form| %> is not

It should be <%= person_form.... %>, I should have seen that before. Without the = it runs the code but does not put the result into the page.

   thank you. :slight_smile: my bad, consider this is resolved. It works for me now.