Splitting and array using formtastic. Error: undefined method `map'

Question

I'm trying to turn my choices column from my Questionnaire table into separate strings as multiple choice.

Questionnaire Controller:

    class QuestionnairesController < ApplicationController

def index

    @questions = Questionnaire.find(params[:category_id])
    #params[:category_id]= <%=category.id%>
    @category = Category.find(params[:category_id])
    @videos = VideoClue.find(params[:category_id])
    ###This finds all the questions from the question table by their category_id. Whenever I select a category, it matches the question related to the category

    render :show
    ###render :show Renders Html page
end

def choose_answer
    # binding.pry
    @questions = Questionnaire.find(params[:id])
    #params[:id] = /:id  = /1


    render :choose_answer
    end





    end

Questionnaire Model:

class Questionnaire < ActiveRecord::Base

belongs_to :categories

end

Chose_answer.html.erb

    <h1>Congrats You Hit The Choices Page!</h1>


    <%= semantic_form_for @questions.choices do |c| %>

    <%= c.inputs do %>

    <%= c.input :choices, :as => :check_boxes , :collection => 
   [@questions.choices].map(&:inspect).join(', ') %>

    <%end%>

    <%end%>

Questionnaire table seed:

    Questionnaire.create({question: "In that year did MTV (Music Television) 

    premiere and what was the first music video the channel aired?", choices:

    ["1982 Michael Jackson 'Bille Jean'", "1984 Madonna 'Like a virgn'", "1981

     The Buggles 'Video Killed The Radio Star'"], correct_answer:"1981 The 

    Buggles 'Video Killed The Radio Star' ", category_id:1})

@question.choices returns

    ["1982 Michael Jackson 'Bille Jean'", "1984   

    Madonna 'Like a virgn'", "1981 The Buggles 'Video Killed The Radio Star'"], 

How do I separate the strings from the choices column array and use formtastic to turn the strings into a mutiple choice format?

Answer 1

<%= c.input :choices, :as => :check_boxes , :collection => @questions.choices %>应该在这里执行您想要的操作，如果它已经是数组IIRC，则无需修改它，除非我误会了情况。