Question

我目前正在构建一个rails应用程序，用户可以登录仪表板并填写表单。我一直收到这个错误：

NoMethodError in Users#index
Showing C:/Users/xxx/Desktop/Sites/form-app/app/views/users/_dashboard_nav.html.erb where line #7 raised
undefined method `organization' for #<User:0x0000000c3e4de0>

UsersController.rb

class UsersController < ApplicationController
    before_action :authenticate_user!

    def index
        @user = current_user
        # @organization = current_user.organization.all
    end

    def show
    end

end

_dashboard_nav.html.erb

...
 <% if @user.organization.exists? %>       <-- This is line 7
     <%= link_to "Profile", edit_user_organization_path(@user, @organization), class: "dashboard-nav__item" %>
 <% else %>
     <%= link_to "Profile", new_user_organization_path(@user, @organization), class: "dashboard-nav__item" %>
 <% end %>
...

organization.rb

class Organization < ActiveRecord::Base
    belongs_to :user
end

user.rb

class User < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  has_many :organizations
  has_many :form_submissions
end

Answer 1

如果一个用户可以拥有多个组织，那么条件检查应该是

if @user.organizations.exists?

Answer 2

你可以摆脱实例变量@user。此外，您应该使用organizations代替organization

控制器：

class UsersController < ApplicationController
   before_action :authenticate_user!

   def index
     # do nothing here
   end

   # other methods
end

查看：

<% if current_user.organizations.exists? %>
  <%= link_to "Profile", edit_user_organization_path(current_user, @organization), class: "dashboard-nav__item" %>
<% else %>
  <%= link_to "Profile", new_user_organization_path(current_user, @organization), class: "dashboard-nav__item" %>
<% end %>

用户#index中的Rails NoMethodError

2 个答案: