How to display data for nested objects in a check box in Rails? -

i'm having issue want display correct answer in check box in rails, no avail.

the structure further complicated fact models nested 1 survey not has_many, accepts_nested_attributes_for questions , questions has_many choices similarly. problem i'm not able box checked correct answer.

the data saved database boolean in column called correct_choice , code show action shows check boxes, correct choice not checked:

 <table class="col-md-10">     <thead>       <tr>         <% question in @survey.questions  %>             <li><%= h question.content %></li>                <% choice in question.choices %>               <li><%= h choice.content %>                   <%= h check_box(:choice, :correct_choice ) %>               <% end %>               </li>             </li>         <% end %>       </tr>     </thead>   </table> 

i've read documentation, cannot figure out how apply case. can point me in right direction?

edit

this html out:

    <table class="col-md-10">      <thead>       <tr>              <li>is question?</li>                <li>i&#39;m not big. i&#39;m having breakdown.                   <input name="correct_choice[content]" type="hidden" value="0" /><input type="checkbox" value="1" name="correct_choice[content]" id="correct_answer_content" />               <li>come on, i&#39;m not big.                   <input name="correct_choice[content]" type="hidden" value="0" /><input type="checkbox" value="1" name="correct_choice[content]" id="correct_choice_content" />               <li>who hungry?                   <input name="correct_choice[content]" type="hidden" value="0" /><input type="checkbox" value="1" name="correct_choice[content]" id="correct_choice_content" />               <li>pass cheese, please.                   <input name="correct_choice[content]" type="hidden" value="0" /><input type="checkbox" value="1" name="correct_choice[content]" id="correct_choice_content" />               </li>             </li>       </tr>     </thead>   </table> 

i figured out advice @davidwessman. told me display html , inspect. did , compared html edit action (the 1 works).

it became clear needed use check_box_tag command instead of check_box. code use:

  <thead>     <tr>       <% question in @survey.questions  %>            <li><%= h question.content %></li>              <% choice in question.choices %>             <li><%= h choice.content %>                 <%= check_box_tag "correct_choice", "yes", answer.correct_choice %>             <% end %>             </li>           </li>       <% end %>     </tr>   </thead>