的Rails：嵌套模型的驗證

後消失我有一個模型：的Rails：嵌套模型的驗證

class Invoice < ActiveRecord::Base 
    belongs_to :case 
    has_many :invoice_positions 

    accepts_nested_attributes_for :invoice_positions, allow_destroy: true

，我有一個形式createn與https://github.com/nathanvda/cocoon，但我有一個小問題 - 驗證失敗，所有invoice_positions消失後。

這裏是形式，其中i渲染位置的一部分：

<% f.fields_for :invoice_positions do |invoice_position| %> 
      <%= render 'invoice_position_fields', f: invoice_position %> 
     <% end %>

和我的控制器創建行動：從控制檯

def create 
    @case = Case.find(params[:case_id]) 
    @invoice = Invoice.new(invoice_params) 
    @invoice.case = @case 

    if @invoice.save 
     flash[:success] = 'Faktura zapisana' 
     redirect_to case_case_invoices_path(@case) 
    else 
     @invoice.invoice_positions.build(params[:invoice_positions_attributes]) 
     render 'new' 
    end 
    end

下面是參數：

Parameters: {"utf8"=>"✓", "authenticity_token"=>"f1IUw+mt10QX3PFy4g1Hv+8VkD8sQR7roPKrh+6N4Va6Un2mGrR86/XR91hsRjI4V6FLNyavyc8TeGZt9E2RoQ==", "invoice"=>{"date(1i)"=>"2016", "date(2i)"=>"1", "date(3i)"=>"26", "pay_date(1i)"=>"2016", "pay_date(2i)"=>"2", "pay_date(3i)"=>"5", "city"=>"Rzeszów", "person"=>"Test Test", "comment"=>"", "invoice_positions_attributes"=>{"1453833757786"=>{"name"=>"dwqdwqdwq", "kind"=>"", "price"=>"", "quantity"=>"", "tax"=>"", "_destroy"=>"false"}, "1453833759600"=>{"name"=>"wdqdwqqwd", "kind"=>"", "price"=>"", "quantity"=>"", "tax"=>"", "_destroy"=>"false"}}}, "case_id"=>"1"}

這裏invoice_position_fields視圖：

<tr class="nested-fields"> 
    <td> 
    <%= f.text_field :name, class: 'form-control', placeholder: 'Nazwa' %> 
    </td> 
    <td> 
    <%= f.text_field :kind, class: 'form-control', placeholder: 'Typ (np. usł., szt.)' %> 
    </td> 
    <td> 
    <%= f.text_field :price, class: 'form-control', placeholder: 'Cena jedn. netto' %> 
    </td> 
    <td> 
    <%= f.text_field :quantity, class: 'form-control', placeholder: 'Ilość' %> 
    </td> 
    <td> 
    <%= f.text_field :tax, class: 'form-control', placeholder: 'VAT' %> 
    </td> 
    <td></td> 
    <td> 
    <%= link_to_remove_association icon('trash'), f, {class: 'btn btn-danger'} %> 
    </td> 
</tr>

來源

2016-01-26 rafal235

你能張貼在invoice_position_fields模板代碼 – Swards

'@ invoice.invoice_positions.build（PARAMS [：發票] [：invoice_positions_attributes]）'這將幫助。請提供從控制檯傳遞給創建方法的參數列表。 – user100693

@ShefaleeChaudhary它仍然不起作用 – rafal235

<%= f.fields_for :invoice_positions do |invoice_position| %>

代替

<% f.fields_for :invoice_positions do |invoice_position| %>

2.5小時得到它....

豐富派克編輯

可以清理你的create動作有點：

def create 
    @case = Case.find params[:case_id] 
    @invoice = @case.invoices.new invoice_params

來源

2016-01-26 20:25:09 rafal235

帶了我3天在我開始的時候解決這個問題 –

的Rails：嵌套模型的驗證

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