CODEWITHSUNDEEP
ruby-on-rails
punitjajodia
punitjajodia

Reputation: 92

Hidden field not being generated from helper in rails

I am trying to implement a nested form using the allows_nested_attributes_for feature in rails3 to implement a survey form. Survey has many questions has many answers.

I want to pass the :_destroy field as hidden and use jQuery to set it when a link is clicked. It was working fine but when I tried doing the same using a helper method, the hidden field doesn't show up.

module ApplicationHelper
   def link_to_remove_field(link_text, builder)
   builder.hidden_field :_destroy
   link_to link_text, '#',  :class=>"remove_field"
  end
end

This is the jquery function I want to use.

$(function(){
  $('.remove_field').on('click', function(element){
  $(this).prev("input[type=hidden]").val("1");
  $(this).parent('.field').hide();
  return false;
  });
});

And this is partial from which I am calling the helper

<%= f.label :question %><br />
<%= f.text_area :question, :rows=>1 %>
<%= link_to_remove_field("Remove question", f) %>

The a tag appears but the hidden field doesn't show.

<textarea cols="40" id="old_question_set_old_questions_attributes_2_question" name="old_question_set[old_questions_attributes][2][question]" rows="1"></textarea>
<a href="#" class="remove_field">Remove question</a>

Upvotes: 0

Views: 114

Answers (1)

jvnill
jvnill

Reputation: 29599

You link_to_remove_field is only returning the last line which is the link_to because you forgot to add the hidden_field. change your helper to

def link_to_remove_field(link_text, builder)
  builder.hidden_field(:_destroy) +
  link_to(link_text, '#', :class => "remove_field")
end

please take note that you may need to call html_safe when calling this method

link_to_remove_field(....).html_safe

Upvotes: 1

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