Question

我的代码是： users_controller.rb

**class UsersController < ApplicationController
  def show
    @user = User.find(params[:id])
  end
  def create
       @user.create(user_params)
      if @user.save
          @user.fullname = @user.firstname + ‘ ‘ + @user.lastname
      end
  end
end**

user.rb代码：

**class User < ApplicationRecord

  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable
  validates :lname, presence:true, length: {maximum: 40}
  validates :fname, presence:true, length: {maximum: 40}
  validates :fullname, presence:true, length: {maximum: 80}
  has_attached_file :avatar, styles: { medium: "300x300>", thumb: "100x100>" }, default_url: "/assets/default_image.jpeg"
  validates_attachment_content_type :avatar, content_type: /\Aimage\/.*\z/
  has_many :rooms
end**

并且

new.html.erb代码：

**
<%= form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
  <%= render 'shared/devise_errors' %>
              <div class="form-group">
                <%= f.text_field :lname, autofocus: true, class: "form-control", placeholder: "Prénom" %>
              </div>
              <div class="form-group">
                <div class="form-group">
                  <%= f.text_field :fname, autofocus: true, class: "form-control", placeholder: "Nom de famille" %>
                </div>
                <div class="form-group">
  <div class="form-group">
    <%= f.text_field :fullname, autofocus: true,  class: "form-control", placeholder: "Nom complet ( Prénom + Nom)" %>
  </div>
  <div class="form-group">**

我希望当用户填写lname和fname字段时，fullname将自动填入lname +＆＃39; ＆＃39; + FNAME。

感谢您的帮助

Answer 1

在表单中的

，只需让用户填写名字和姓氏，删除全名text_field。自动生成并在后端保存fullname。

class UsersController < ApplicationController
  def create
    user_params[:fullname] = "#{user_params[:firstname]} #{user_params[:lastname]}"
    @user.create(user_params)
  end
end

ruby with gem devise autofill in field fullname

1 个答案: