Ruby on rails 如何强制用户完成整个表单？

我正在创造一个歌唱形式。我需要用户填写表单的每个字段，但是rails只在没有密码的情况下阻止创建。我必须做些什么来强制用户在提交前完成整个表单

这是我的表格代码：

 <%= form_for(user) do |f| %>
  <% if user.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(user.errors.count, "error") %> prohibited this user from being saved:</h2>

      <ul>
      <% user.errors.full_messages.each do |message| %>
        <li><%= message %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

  <div class="field">
    <%= f.label :first_name %>
    <%= f.text_field :first_name %>
  </div>

  <div class="field">
    <%= f.label :last_name %>
    <%= f.text_field :last_name %>
  </div>

  <div class="field">
    <%= f.label :email %>
    <%= f.text_field :email %>
  </div>

  <div class="field">
    <%= f.label :password %>
    <%= f.password_field :password %>
  </div>

  <div class="field">
    <%= f.label :password_confirmation %>
    <%= f.password_field :password_confirmation %>
  </div>

  <div class="field">
    <%= f.label :fav_team, "Favorite Team" %>
    <%= collection_select(:user, :fav_team, League.order(:name), :id, :name, {:include_blank => "Select a League"},  { :id => "leagues_select"}) %> 
    <%= grouped_collection_select(:user, :fav_team, League.order(:name), :teams, :name, :id, :name, {:include_blank => true}, {}) %>
  </div>

  <div class="field">
    <%= f.label :net_worth, "Net Worth (USD)" %>
    <%= f.text_field :net_worth, :readonly => true, :value => "100" %>
  </div>

  <div class="field">
    <%= f.label :country %>
    <%= f.select :country, options_for_Countrys, :include_blank => true %>
  </div>

  <div class="actions">
    <%= f.submit %>
  </div>
<% end %>

---

您必须在模型中编写验证，以确保数据有效且存在

在你的情况下，你必须这样做

class User < ApplicationRecord
  validates :first_name,  presence: true, length: { maximum: 50 }
  validates :last_name,  presence: true, length: { maximum: 50 }
end

---

通过谷歌搜索客户端验证开始。OP要求客户端验证，而不是服务器端验证，也就是说，强制用户在提交前完成整个表单。