Rails dev gem中的问题保存自定义属性

Question

我的应用程序中的身份验证系统由devise处理，现在我希望系统中的每个用户都属于一个组织。因此，每个组织将有多个用户。注册时，每个用户将选择他们想要加入的组织。

[当用户注册时，他们从组合框中选择和组织，他们收到以下错误：

ActiveRecord::AssociationTypeMismatch in Devise::RegistrationsController#create

Organisation(#70213198483780) expected, got "1" which is an instance of String(#70213152374240)

以下是我的源代码：

app / models / organisation.rb

class Organisation < ApplicationRecord
  has_many :users
end

app / models / user.rb

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

  has_many :activities
  belongs_to :organisation
end

app / views / devise / registrations / new.html.erb

<h2>Sign up</h2>

<%= form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
  <%= render "devise/shared/error_messages", resource: resource %>

  <div class="field">
    <%= f.label :email %><br />
    <%= f.email_field :email, autofocus: true, autocomplete: "email" %>
  </div>

  <div class="field">
    <%= f.label :password %>
    <% if @minimum_password_length %>
    <em>(<%= @minimum_password_length %> characters minimum)</em>
    <% end %><br />
    <%= f.password_field :password, autocomplete: "new-password" %>
  </div>

  <div class="field">
    <%= f.label :password_confirmation %><br />
    <%= f.password_field :password_confirmation, autocomplete: "new-password" %>
  </div>

  <div class="field">
    <%= f.label :organisation %><br />
    <%= f.select :organisation, Organisation.all.collect { |o| [ o.organisation_name, o.id ] }%>
  </div>


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

<%= render "devise/shared/links" %>

app / controllers / application_controller.rb

class ApplicationController < ActionController::Base
  before_action :authenticate_user!
  before_action :configure_sign_up_params, if: :devise_controller?

  protected
  # If you have extra params to permit, append them to the sanitizer.
  def configure_sign_up_params
    devise_parameter_sanitizer.permit(:sign_up, keys: [:organisation])
  end
end

Answer 1

我建议您将表格更改为

<%= f.select :organisation_id, Organisation.all.collect { |o| [ o.organisation_name, o.id ] }%>

因为下拉菜单使organisation.name作为键，而organisation.id作为值。

然后更改devise_parameter_sanitizer.permit(:sign_up, keys: [:organisation_id])以允许将organisation_id分配给用户

而不是使用collect代替Organisation.all上的Organisation.all.pluck(:name, :id)。它会产生与查询相同的结果，但查询会更优化。

Answer 2

根据指南，默认情况下，关联记录的嵌套属性是关闭的，这意味着您无法在表单中创建具有其关联（组织）的用户。如何启用？

使用accepts_nested_attributes_for

在用户模型中添加：

accepts_nested_attributes_for

此外，在允许键中，您需要在允许的参数中添加

belongs_to :organisation
accepts_nested_attibutes_for :organisation

organization_id

出于您的观点：只需将

def configure_permitted_parameters
  devise_parameter_sanitizer.permit(:sign_up,
                                    keys: [:organization_id])
end

替换为select :organization

select: organization_id

<div>
    <%= f.label :organization %><br />
    <%= f.select :organization_id, Organization.all.collect { |o| [ o.organization_name, o.id ] }%>
</div>