I don't quite understand what you mean.
Do you understand my problem?
When the user enters the information into the form correctly and it
validates everything works great. However, if it is not correctly filled
out the "new" action will get re-rendered and displaying the form errors.
The issue is that instead of showing 2 Participant "fields groups" it now
displays 4, using the code above.
Den onsdagen den 4:e april 2012 kl. 20:55:43 UTC+2 skrev Charles:
>
> is there a way to check if the participant field is already created before
> creating it?
>
> Is_A and Has_A relationships. Describe the relationship between the forms
>
>
> On 4 April 2012 14:42, Linus Pettersson <> wrote:
>
>> Hi!
>>
>> I have created a nested form and now I want to make it dynamic. I have
>> two models, "Applications" and "Participants". Each application may have
>> several participants, but at least one which is the contact person. An
>> issue that I have is that when the form is not validated it renders the
>> participants fields twice.
>>
>> - How can I avoid that?
>>
>> # Applications/new.html.erb
>> <div class="row span8 offset2 form-wrapper">
>> <h1>Ny anmälan</h1>
>>
>> <%= semantic_form_for @application, :html => { :class =>
>> "form-horizontal" } do |f| %>
>> <%= f.semantic_errors %>
>> <%= f.inputs do %>
>> <%= f.inputs :for => :participants, :name => "Kontaktperson", :class =>
>> "participants_form well" do |p| %>
>> <%= p.input :name, :label => "Namn", :required => true %>
>> <%= p.input :address, :label => "Adress", :required => true %>
>> <%= p.input :phone, :label => "Mobiltelefon", :required => true %>
>> <%= p.input :email, :label => "Epostadress", :as => :email, :required =>
>> true %>
>> <%= p.input :age, :label => "Ålder" %>
>> <%= p.input :has_something, :label => "Ja..." %>
>> <%= p.input :special_food, :label => "Annan specialkost" %>
>> <%= p.input :is_contact, :as => :hidden, :value => true %>
>> <% end %>
>>
>> <%= f.inputs :class => "participants_fields" do %>
>> <%= render "participant_form", :f => f %>
>> <% end %>
>> <%= link_to "<i class=\"icon-plus-sign\"> </i> Lägg till fler
>> deltagare...".html_safe, "#", :class => "btn pull-right" %>
>>
>> <%= f.inputs :name => "Övrig information" do %>
>> <%= f.input :extra_information, :input_html => { :class => "span4", :rows
>> => 3 } %>
>> <%= f.input :membership_paid, :label => "JA" %>
>> <% end %>
>> <% end %>
>>
>> <%= f.buttons do %>
>> <%= f.submit :value => "Skicka anmälan", :class => "btn btn-primary
>> btn-large commit create" %>
>> <% end %>
>> <% end %>
>> </div>
>>
>> # Applications Controller
>> def new
>> @application = Application.new
>> @application.participants.build
>> respond_to do |format|
>> format.html
>> format.js { render :nothing }
>> end
>> end
>>
>> def create
>> @application = Application.new(params[:application])
>>
>> if @application.save
>> flash[:notice] = "Din anmälan har skickats!"
>> redirect_to root_path
>> else
>> flash[:error] = "Det gick inte att spara din anmälan"
>> render :action => "new"
>> end
>> end
>>
>>
>> I guess that my participants gets built again when it renders the new
>> action in the "create" method. But how can I avoid that?
>>
>> --
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>
>
>
>
>
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