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PONested form error in Rails app
 

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    <p>Models relevant to this question: user, friend, interest, person_interest. Person_interest is polymoprhic and can store interests that either belong to a user or a friend. </p> <p>Interests is pre-populated with approx. 30 interests. When a user registers they are asked to select their own interests, then lower in the form enter in their friends names select the interests of that person. </p> <p>Trying to achieve this with <code>&lt;%= friend_f.input :interests, :as =&gt; :check_boxes, :label =&gt; false %&gt;</code></p> <p>but getting the following error:</p> <pre><code>NoMethodError in User_steps#show Showing /Users/nelsonkeating/Desktop/ReminDeal/app/views/user_steps/show.html.erb where line #30 raised: undefined method `to_i' for []:ActiveRecord::Relation Extracted source (around line #30): 27: :end_year =&gt; Date.today.year - 12, 28: :order =&gt; [:month, :day, :year ] %&gt; 29: &lt;%= friend_f.input :gender, :collection =&gt; ['male','female'] %&gt; 30: &lt;%= friend_f.input :interests, :as =&gt; :check_boxes, :label =&gt; false %&gt; 31: &lt;%end%&gt; 32: 33: Rails.root: /Users/nelsonkeating/Desktop/ReminDeal Application Trace | Framework Trace | Full Trace app/views/user_steps/show.html.erb:30:in `block (2 levels) in _app_views_user_steps_show_html_erb__1202886937753978667_70281885932700' app/views/user_steps/show.html.erb:23:in `block in _app_views_user_steps_show_html_erb__1202886937753978667_70281885932700' app/views/user_steps/show.html.erb:1:in `_app_views_user_steps_show_html_erb__1202886937753978667_70281885932700' Request Parameters: {"id"=&gt;"show"} </code></pre> <p>And here's the form..</p> <pre><code>&lt;%= simple_form_for @user do |f| %&gt; &lt;%= f.input :name %&gt; &lt;%= f.input :city %&gt; &lt;%= f.input :address, :live =&gt; true %&gt; &lt;%= f.input :zipcode %&gt; &lt;%= f.input :date_of_birth, :as =&gt; :date, :start_year =&gt; 1900, :end_year =&gt; Date.today.year - 12, :order =&gt; [ :day, :month, :year] %&gt; &lt;%= f.input :gender, :collection =&gt; [:male, :female] %&gt; &lt;h4&gt;Select your top 3 interests..&lt;/h4&gt; &lt;%= f.association :interests, :as =&gt; :check_boxes, :label =&gt; false %&gt; &lt;h4&gt;What holidays do you celebrate?&lt;/h4&gt; &lt;%= f.association :holidays, :as =&gt; :check_boxes, :label =&gt; false %&gt; &lt;h4&gt;Add up to 10 friends birthdays that you would like to remember..&lt;/h4&gt; &lt;%= f.simple_fields_for :friends do |friend_f| %&gt; &lt;%= friend_f.input :name %&gt; &lt;%= friend_f.input :dob, :label =&gt; :Birthday, :as =&gt; :date, :start_year =&gt; Date.today.year - 90, :end_year =&gt; Date.today.year - 12, :order =&gt; [:month, :day, :year ] %&gt; &lt;%= friend_f.input :gender, :collection =&gt; ['male','female'] %&gt; &lt;%= friend_f.input :interests, :as =&gt; :check_boxes, :label =&gt; false %&gt; &lt;%end%&gt; &lt;%= f.button :submit, :class =&gt; 'btn btn-success' %&gt; &lt;%end%&gt; </code></pre> <p>Git repo is here: <a href="https://github.com/nelsonkeating/ReminDeal" rel="nofollow">https://github.com/nelsonkeating/ReminDeal</a></p>
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