如何使用 check_box_tag 在 Haml 中选中复选框 [英] How to check a check box in Haml using check_box_tag

问题描述

谁能告诉我如何将这些复选框设置为选中状态?我确定这很简单，但经过一个小时的尝试后，我想我需要问一下！谢谢！

Can someone tell me how to set these check boxes to checked? I'm sure it's simple, but after an hour of trying i think I need to ask! Thanks!

= form_tag movies_path, :id => 'ratings_form', :method => :get do
  Include: 
  - @all_ratings.each do |rating|
    = rating
    = check_box_tag "ratings[#{rating}]", 
  = submit_tag 'Refresh', :id => 'ratings_submit'

推荐答案

Ref check_box_tag

check_box_tag "ratings[#{rating}]",  1, !!(rating.rating)

您的第二个参数必须是复选框的value

您的 第三个参数 必须是一个 boolean 条件，它返回 true/false 并取决于它复选框是 checked/unchecked

Your 3rd parameter must be a boolean condition which return true/false and depends on it checkbox is checked/unchecked

这篇关于如何使用 check_box_tag 在 Haml 中选中复选框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！