我是rails的新手,还没有设法解决以下问题。我使用devise进行身份验证,使用名为“user”的模型。该模型与另一个名为“公司”的模型相关联:
user.rb
class User < ActiveRecord::Base
devise :database_authenticatable, :registerable, :confirmable,
:recoverable, :rememberable, :trackable, :validatable
belongs_to :company
accepts_nested_attributes_for :company
attr_accessible :company_attributes, :email, :password,
:password_confirmation, :remember_me, :company_id
company.rb
class Company < ActiveRecord::Base
has_many :users
attr_accessible :name
validates :name, :presence => true, :uniqueness => true
注册时,用户同时创建公司和用户:
users_controller.rb
def new
@user = User.new
@user.build_company
respond_to do |format|
format.html # new.html.erb
format.json { render json: @user }
end
end
def create
@user = User.new(params[:user])
respond_to do |format|
if @user.save
format.html { redirect_to @user, notice: 'User was successfully created.' }
format.json { render json: @user, status: :created, location: @user
else
format.html { render action: 'new' }
format.json { render json: @user.errors, status: :unprocessable_entity }
end
end
end
到目前为止,注册工作正常,这意味着如果@user.save
为真,则在用户和公司模型中分别创建两条记录,并在用户模型的列company_id
中创建正确的关联。
如果@user.save
为false,例如因为已经拍摄了用户属性电子邮件的验证失败,则会呈现新视图。正如所料,@user
属性(在本例中为电子邮件)将保留,并保留在render action: 'new'
之后的相应表单字段中。但是,公司属性名称的表单字段显示为空白。这是注册页面的视图:
new.html.erb
<%= devise_error_messages! %>
<h2>Sign up</h2>
<%= simple_form_for(resource, :as => resource_name,
:url => registration_path(resource_name),
:html => {:class => 'form-horizontal' }) do |f| %>
<%= f.simple_fields_for :company, @user.build_company do |builder| %>
<div><%= builder.label :name, "Company" %><br />
<%= builder.text_field :name, :autofocus => true,
:placeholder => "Example Company Inc.",
:required => true %></div>
<% end %>
<div><%= f.label :email %><br />
<%= f.email_field :email, :placeholder => "example@email.com", :required => true %></div>
<div><%= f.label :password %><br />
<%= f.password_field :password, :required => true %></div>
<div><%= f.label :password_confirmation %><br />
<%= f.password_field :password_confirmation, :required => true %></div>
<%= f.submit "Sign up", :class => "btn"%>
<% end %>
<%= render "devise/shared/links" %>
我认为我可能必须在用户创建方法中创建一个实例变量@company
,以便表单字段内容可以保存在params哈希中,如下所示:
@company = @user.build_company(params[:company])
不幸的是,这不起作用,到目前为止,我还没有在stackoverflow上发布的其他问题中找到解决方案。我期待您的意见,以便我可以继续构建我的第一个应用程序;)
提前感谢您的帮助。
答案 0 :(得分:0)
感谢Michal的输入,我重新安排了我的控制器,以便通过关联公司创建用户,而不是相反。各自的公司控制器如下所示:
<强> companies_controller.rb 强>
# GET company/new
def new
@company = Company.new
@company.users.build
end
# POST company/
def create
@company = Company.new(params[:company])
respond_to do |format|
if @company.save
format.html { redirect_to root_path, notice: 'Welcome! Your account has been created successfully. A confirmation link has been sent to your email address.' }
format.json { render json: root_path, status: :created, location: @company }
else
format.html { render action: "new" }
format.json { render json: @company.errors, status: :unprocessable_entity }
end
end
end
GET请求的格式嵌套在Devise用户模型字段中,如下所示:
<强> new.html.erb 强>
<h2>Create an account</h2>
<%= simple_form_for( @company, :html => {:class => 'form-horizontal' }) do |f| %>
<%= render 'shared/error_messages', :object => @company %>
<%= f.input :name,
:label =>'Company name',
:placeholder => "Example Company Inc.",
:autofocus => true %>
<%= f.simple_fields_for :users do |builder| %>
<%= builder.input :email,
:placeholder => "example@email.com" %>
<%= builder.input :password %>
<%= builder.input :password_confirmation %>
<% end %>
<%= f.button :submit, 'Create account',
:class => 'btn'%>
<% end %>
<%= link_to "Sign in", new_session_path(:user) %>
现在,如果验证失败,则所有实例属性值都保留在各自的表单字段中。