Simple_form 和 Rails - 多项选择

Question

我正在尝试用 simple_form 制作一个表格，并且有多项选择部分。所有数据都已保存（我有名字、姓氏、电子邮件...），但多选单选按钮始终为空字符串。如何制作一个简单的选项列表并保存该选项？

架构：

create_table "greetings" do |t|
  t.string "first_name"
  t.string "last_name"
  t.string "nickname"
  t.string "multiple_choice"
end

控制器：

def new
  @greeting = Greeting.new
end

def create
  @greeting = Greeting.new(greeting_params)
  @greeting.save
end

private
  def greeting_params
    params.require(:greeting).permit(:first_name, :last_name, :nickname, :multiple_choice)
  end

日志：

Started POST "/greeting" for ::1 at 2017-07-28 17:32:19 +1000 Processing by GreetingsController#create as HTML Parameters: {"utf8"=>"✓", "authenticity_token"=>"...", "greeting"=>{"first_name"=>"John", "last_name"=>"Doe", "nickname"=>"Johnny", "multiple_choice"=>""}, "multiple_choice"=>"Name", "commit"=>"Submit"} (0.2ms) BEGINSQL (0.4ms) INSERT INTO "greetings" ("first_name", "last_name", "nickname", "multiple_choice", "created_at", "updated_at") VALUES (, , , , , , ) RETURNING "id" [["first_name", "John"], ["last_name", "Doe"], ["nickname", "Johnny"], ["multiple_choice", ""], ["created_at", 2017-07-28 07:32:19 UTC], ["updated_at", 2017-07-28 07:32:19 UTC]]

我想通过以下方式进行多项选择：

姓名
姓氏
昵称

我试过 view.slim:

= simple_form_for @contact_form do |f|
= f.input :first_name, label: 'First name', placeholder: 'Enter first name...'
= f.input :last_name, label: 'Last name', placeholder: 'Enter last name...'
= f.input :nickname, label: 'Nickname', placeholder: 'Enter nickname...'
= f.input :multiple_choice, :collection => ['Name'], :as => :radio_buttons
= f.input :multiple_choice, :collection => ['Surname'], :as => :radio_buttons
= f.input :multiple_choice, :collection => ['Nickname'], :as => :radio_buttons

但是它保存了一个空字符串。

谢谢！

Answer 1

我找到了单选按钮的解决方案：

view.slim:

p Name
= f.radio_button :call_time, 'first_name'
p Surname
= f.radio_button :call_time, 'last_name'
p Nickname
= f.radio_button :call_time, 'nickname'
= f.button :submit

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