Question

我正在制作发票申请表，其中我有@invoice表格，在其中我有客户，产品和公司信息的嵌套表格。产品表格在所有视图中都运行良好，但客户表单不是。当我填写客户信息并创建新发票时，它可以正常工作。但是当我尝试编辑该发票时，整个表格都消失了。

发票/ _form

<%= form_for @invoice do |f| %>
<% if @invoice.errors.any? %>
    <div id="error_explanation">
      <h2><%= pluralize(@invoice.errors.count, "error") %> prohibited this invoice from being saved:</h2>

      <ul>
      <% @invoice.errors.full_messages.each do |message| %>
        <li><%= message %></li>
      <% end %>
      </ul>
    </div>
  <% end %>

    <%= f.fields_for :customer do |customer| %>
    <div class="field">
    <%= customer.label 'Bedrijfsnaam ontvanger' %><br/>
    <%= customer.text_field :company_name, placeholder: 'bedrijfsnaam', class: 'form-control' %>
    </div>
    <div class="field">
    <%= customer.label 'Adres ontvanger' %><br>
    <%= customer.text_field :address_line_1, placeholder: 'adres ontvanger', class: 'form-control' %>
    </div>
    <div class="field">
    <%= customer.label 'Postcode & stad' %><br>
    <%= customer.text_field :zip_code, placeholder: '1234AB Rotterdam', class: 'form-control' %>
    </div>
    <% end %>

Invoices_controller.rb

class InvoicesController < ApplicationController
  before_action :set_invoice, only: [:show, :edit, :update, :destroy]

  # GET /invoices
  # GET /invoices.json
  def index
    @invoices = Invoice.all
  end

  # GET /invoices/1
  # GET /invoices/1.json
  def show
  end

  # GET /invoices/new
  def new
    @invoice = Invoice.new
    @invoice.products.build
    @invoice.build_customer
  end

  # GET /invoices/1/edit
  def edit
  end

  # POST /invoices
  # POST /invoices.json
  def create
    @invoice = Invoice.new(invoice_params)

    respond_to do |format|
      if @invoice.save
        format.html { redirect_to @invoice, notice: 'Invoice was successfully created.' }
        format.json { render :show, status: :created, location: @invoice }
      else
        format.html { render :new }
        format.json { render json: @invoice.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /invoices/1
  # PATCH/PUT /invoices/1.json
  def update
    respond_to do |format|
      if @invoice.update(invoice_params)
        format.html { redirect_to @invoice, notice: 'Invoice was successfully updated.' }
        format.json { render :show, status: :ok, location: @invoice }
      else
        format.html { render :edit }
        format.json { render json: @invoice.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /invoices/1
  # DELETE /invoices/1.json
  def destroy
    @invoice.destroy
    respond_to do |format|
      format.html { redirect_to invoices_url, notice: 'Invoice was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_invoice
      @invoice = Invoice.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def invoice_params
      params.require(:invoice).permit(:number, :currency, :date, :duedate, :btwtotal,
                                      :subtotal, :total, :footer, customers_attributes: [:id, :company_name, :address_line_1, :zip_code, :_destroy],
                                      companies_attributes: [:id, :btw_number, :iban_number, :kvk_number, :company_name, :_destroy],
                                      products_attributes: [:id, :quantity, :description, :unitprice, :btw, :total])
    end
end

Invoice.rb - （模特）

class Invoice < ActiveRecord::Base

  has_one :company
  has_one :customer
  has_many :products

  accepts_nested_attributes_for :customer, reject_if: :all_blank, allow_destroy: true
  accepts_nested_attributes_for :products, reject_if: :all_blank, allow_destroy: true
  validates :number, :currency, :date, :duedate, :btwtotal, :subtotal, :total, presence: true

end

Answer 1

在发票控制器中尝试将强{s}中的customers_attributes更改为customer_attributes：

customer_attributes: [:id, :company_name, :address_line_1, :zip_code, :_destroy]

我怀疑这是一个您的客户嵌套属性未正确保存的问题，因此当您转到编辑视图时，由于没有为您的发票保存任何客户而未呈现表单的一部分< / p>

嵌套表单在新版本中工作但未在编辑Rails中显示

1 个答案: