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我在尝试将数据插入到具有涉及两个模型的复杂形式的数据库时遇到问题，并且我搜索了Stackoverflow上的每个帖子以找到最佳答案，但是我无法靠近任何地方靠近。试图为具有多态关联的模型插入数据
在我的模型
class ClientIndividual < ActiveRecord::Base
has_one :client_assignment, :as => :clientassignmentable
accepts_nested_attributes_for :client_assignment
end
class ClientAssignment < ActiveRecord::Base
belongs_to :clientassignmentable, :polymorphic => true
end
在我ClientIndividual控制器
class ClientIndividualsController < ApplicationController
before_action :set_client_individual, only: [:show, :edit, :update, :destroy]
before_filter :authenticate_user!
def new
@client_individual = ClientIndividual.new
end
def create
@client_individual = ClientIndividual.new(client_individual_params)
respond_to do |format|
if @client_individual.save
format.html { redirect_to @client_individual, notice: 'Client individual was successfully created.' }
format.json { render action: 'show', status: :created, location: @client_individual }
else
format.html { render action: 'new' }
format.json { render json: @client_individual.errors, status: :unprocessable_entity }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_client_individual
@client_individual = ClientIndividual.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def client_individual_params
params.require(:client_individual).permit(:title, :first_name, :middle_name,
:last_name, :date_of_birth, :work_phone, :home_phone, :mobile_phone, :email_address,
:preferred_contact_type, :residential_address, :residential_suburb, :residential_state,
:residential_postcode, :same_as_residential, :postal_address, :postal_suburb,
:postal_state, :postal_postcode, :emergency_contact_person, :emergency_phone_no,
:industry_type, :has_referral, :notes, clientassignmentable_attributes:
[:assignment_types_id, :employees_id, :start_date, :manager_id, :client_type])
end
end
在我Client_Individual＃新观点
<%= form_for(@client_individual) do |f| %>
<div class="add_data_section">
<%= f.fields_for (:clientassignmentable) do |client_assignment_form| %>
........
........
<div class="row_container">
<div class="field 1" style="width: 409px;">
<%=client_assignment_form.label :assignment_types_id, "Assignment Type*"%>
</div>
<div class="dropdown">
<label>
<%= select('client_individual[clientassignmentable]', 'assignment_types_id', AssignmentType.all.collect {|assignment_type| [assignment_type.name, assignment_type.id ] }, {prompt: 'Select Assignment Type'}, :style =>"width: 264px;")%>
</label>
</div>
</div>
<div class="row_container">
<div class="field " style="width: 409px;">
<%=client_assignment_form.label :start_date, "Assignment Start Date"%>
</div>
<div class="inputfield">
<%=client_assignment_form.text_field :start_date, :class=>'assignmentdatepicker', :style=>'width: 260px;'%>
</div>
</div>
<div class="row_container">
<div class="field " style="width: 409px;">
<%=client_assignment_form.label :manager_id, "Manager Appointed*"%>
</div>
<div class="dropdown">
<label>
<%= select('client_individual[clientassignmentable]', 'manager_id', Employee.all.select{ |manager| manager.staff_rank_id == 2}.collect{|employee| [employee.first_name + " " + employee.last_name, employee.id ] }, {prompt: 'Select ManagerList'}, :style =>"width: 264px;")%>
</label>
</div>
</div>
<div class="row_container">
<div class="field 1" style="width: 409px;">
<%=client_assignment_form.label :employees_id, "Staff Appointed*"%>
</div>
<div class="dropdown">
<label>
<%= select('client_individual[clientassignmentable', 'employees_id', Employee.all.select{ |employee| employee.user_id == current_user_id}.collect{|employee| [employee.first_name + " " + employee.last_name, employee.id ] }, {prompt: 'Select CurrentUser'}, :style =>"width: 264px;")%>
</label>
</div>
</div>
<%=client_assignment_form.hidden_field :client_type%>
<% end %>
......
<% end %>
所以我已经是，我得到了一个ClientIndividual模型有一个ClientAssignment模型。因此，ClientAssignment模型具有ClientIndividual FK，因此在创建新的ClientIndividual数据时，我期望在表单上生成新的ClientAssignment数据。因此，在我的控制，我宣布我的强烈PARAMS像这样
clientassignmentable_attributes: [:assignment_types_id, :employees_id, :start_date, :manager_id, :client_type]
但我点击保存新的数据，什么也没有插入到数据库...
然后检查我development.log和它说下列。
Started POST "/client_individuals" for 127.0.0.1 at 2014-03-30 19:58:52 +1100
Processing by ClientIndividualsController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"0Z+BJcjQE7oa+uzdo/2sKRPiV01EQDXfedMkLE7pTjg=", "groups"=>{"id"=>"1"}, "client_individual"=>{"clientassignmentable"=>{"assignment_types_id"=>"1", "start_date"=>"03/31/2014", "manager_id"=>"13", "employees_id"=>"25", "client_type"=>""}, "title"=>"t", "first_name"=>"t", "middle_name"=>"t", "last_name"=>"t", "date_of_birth"=>"", "work_phone"=>"", "home_phone"=>"", "mobile_phone"=>"", "email_address"=>"[email protected]", "residential_address"=>"t", "residential_suburb"=>"t", "residential_state"=>"t", "residential_postcode"=>"t", "same_as_residential"=>"0", "postal_address"=>"t", "postal_suburb"=>"t", "postal_postcode"=>"t", "emergency_contact_person"=>"", "emergency_phone_no"=>"22223", "industry_type"=>"", "notes"=>""}, "CREATE"=>"Create Client"}
[1m[36mUser Load (0.7ms)[0m [1mSELECT `users`.* FROM `users` WHERE `users`.`id` = 1 ORDER BY `users`.`id` ASC LIMIT 1[0m
Unpermitted parameters: clientassignmentable
[1m[35m (0.3ms)[0m BEGIN
[1m[36m (0.2ms)[0m [1mROLLBACK[0m
我不断收到这个不允许的参数：clientassignmentable。但是我已经在我的控制器列入白名单作为强大的参数之一，所以它为什么抱怨？
当然，如果你知道摆在你面前的正确关联是什么，那么这个问题不难确定吗？
我还能遗漏什么？！？！我一直在这个一整天，看起来很迷茫....
您是不是指fields_for：client_assignment，而不是form_for：client_assignment？原因我需要主窗体来保存新的Client Individual表单。然而，后来，我从另一篇文章中找到了解决方案，建议我应该这样做：012_ fields_for：client_assignment，ClientAssignment.new do | client_assignment_form | 原因如果我只做fields_for：client_assignment，嵌套属性将不会呈现。因为它在创建ClientIndividual时认为ClientAssignment是无类。 – awongCM
@awongCM很棒，抓住了答案。 –