尝试在Rails中保存嵌套属性时的ActiveRecord :: AssociationTypeMismatch
我阅读了很多关于`has_one关系和嵌套属性的页面,但是没有成功地完成这项工作。 任何帮助都会很棒。
每个用户都有_one网络。 我正在尝试以一种forms收集两个属性的信息,但ActiveRecord::AssociationTypeMismatch in UsersController#create
exceptionActiveRecord::AssociationTypeMismatch in UsersController#create
传递的参数是:
{"utf8"=>"✓", "authenticity_token"=>"I54tm1ovzHEHaXbBLTT+5tqBJv2795sKg978ot3HDBc=", "user"=>{"name"=>"Bilbo Baggins", "email"=>"bilbo@lotr.com", "password"=>"[FILTERED]", "password_confirmation"=>"[FILTERED]", "network"=>{"home_lng"=>"-87.91894912719727", "home_lat"=>"43.03812464542969", "center_lng"=>"-87.91894912719727", "center_lat"=>"43.03812464542969", "radius"=>"500"}}, "commit"=>"Sign up"}
我猜测Network
的参数必须以某种方式显示为network_attributes
但我不知道如何。
控制器:
def create @user = User.new(params[:user]) if (@user.save) sign_in @user flash[:success] = "One ring to rule them all!" redirect_to @user else @title = "The journey begins..." render 'new' end end
视图:
当然还有模特:
class User "user_id", :dependent => :destroy accepts_nested_attributes_for :network, :reject_if => :all_blank, :allow_destroy => true end class Network < ActiveRecord::Base attr_accessible :home_lng, :home_lat, :center_lng, :center_lat, :radius belongs_to :user end
谢谢
如果其他人遇到同样的问题,我通过更改解决了这个问题:
<%= f.fields_for @network do |fn| %>
<%= f.fields_for @network do |fn| %>
到<%= f.fields_for :network do |fn| %>
<%= f.fields_for :network do |fn| %>
并删除:network
作为用户模型的可访问属性。
不确定,认为你需要:
<%= f.fields_for @network, :network_attributes do |fn| %>
如果从模型中删除:网络作为可访问的网络将无法确定