view/dashboard/profile.html.erb

new.html.erb

<div class='content_wrapper option_wrapper'> 
	<ul class = 'option_first_banner clearfix'>
		<li class = 'option_right_banner'>
			<%= form_for @profile, :url => dashboard_user_profiles_path, :method => :POST do |f| %>
				<div class="edit_panel panel panel-default">
					<div class="edit_heading panel-heading">
						<h3 class="panel-title">個人資料</h3>
					</div>
					<div class="panel-body">
						<div class='option_content'>
					    	<div class="form-group">
					      		<%= label_tag "地點：" %> <%= f.text_field :location, class:"form-control" %>
					    	</div>
					    	<div class="form-group">
								<%= label_tag "性別：" %> <%= f.select :gender, Profile::GENDER_TYPES, class:"form-control" %>
							</div>
							<% @issues.each do |issue|%>
							<div class="form-group">
								<%= issue.content %>	
								<%= select_tag "profile[profile_option_attributes][][option_id]", options_from_collection_for_select(issue.option, "id" ,"content"), {:class =>"form-control"} %>
								<%#= select_tag "profile[option_ids]", options_from_collection_for_select(issue.option, "id" ,"content"), {:class =>"form-control"} %>
								<%#= select_tag "profile[profile_option_attributes][][option_id]", issue.option.all.collect {|p| [ p.id, p.content] }, {:class =>"form-control"} %>
							</div>
							<% end %>
						</div>
						<div class="form-group">
							<%= f.submit "送出", class: "btn btn-primary" %>
						</div>
				  	</div>
				</div>
			<% end %>
		</li>
	</ul>
</div>

option.rb

class Option < ActiveRecord::Base
    belongs_to :issue
    has_many :respond,  :dependent => :destroy
    has_many :user,     through: :respond
    
    #可以用的
    has_many :profile_option
    has_many :profile,  through: :profile_option
    #可以用的
end

profile.rb

class Profile < ActiveRecord::Base
  belongs_to :user
 
  #可以用的
  has_many :profile_option
  has_many :option, through: :profile_option, dependent: :destroy
  accepts_nested_attributes_for :profile_option
  #可以用的
  
 
  self.primary_key = 'user_id'
  GENDER_TYPES = [ "Male", "Female", "Do not wish to say" ]

end

profile_option.rb

class ProfileOption < ActiveRecord::Base
  belongs_to :profile
  belongs_to :option
  
end

profiles_controller.rb

class  Dashboard::ProfilesController < Dashboard::DashboardController 
  before_action :find_user
  before_action :set_profile
  
  
  
  def new
     @profile = @user.build_profile
     #id:4是登入類別
     @issues = SpecialCate.find(4).issue
     #@profile_option = ProfileOption.new(:profile_id => current_user)
     @profile_option = @profile.profile_option.new(:profile_id => current_user)
  end
  
  def edit
    
  end
  
  def create
    #User.create(:name => params[:user][:name])
    #@profile = @user.build_profile(:location=>params[:profile][:location], :gender=>params[:profile][:gender], :profile_option => params[:profile][:profile_option][:option_id])
    @profile = @user.build_profile(profile_params)
    if @profile.save
      #redirect_to  dashboard_user_path(current_user)
      redirect_to special_cates_dashboard_user_responds_path(current_user)
    else 
      render new
    end
  end
  
  def update
    @profile = @user.profile
    if @profile.update(profile_params)
         redirect_to  dashboard_user_path(current_user)
    else
        render edit
    end
        
    end
  
  private
  def profile_params
    #測試用
    #params.require(:profile).permit(:location, :gender, :option_ids =>[])
    #測試用
   
    #可以用的
    params.require(:profile).permit(:location, :gender, profile_option_attributes:[:option_id])
    #可以用的
    
    #params.require(:profile).permit(:location, :gender, :option_ids => [])
    #params.require(:profile).permit(:location, :gender, :option_ids => [], :basic_option_a, :basic_option_b, :basic_option_c, :basic_option_d, :basic_option_e)

  end
  
  def find_user
    @user = current_user
  end
  
  def set_profile
    @profile = @user.profile
  end
  
end