1
我有一个名为“BillApp”的演习基本上它是有一些产品比尔,我应该可以使账单,计算IVA等嵌套属性无法在轨5,但在轨工作4
我有下面的模式:
create_table "bill_items", force: :cascade do |t|
t.integer "amount"
t.integer "product_id"
t.integer "bill_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["bill_id"], name: "index_bill_items_on_bill_id"
t.index ["product_id"], name: "index_bill_items_on_product_id"
end
create_table "bills", force: :cascade do |t|
t.string "user_name"
t.string "dni"
t.date "expiration"
t.float "sub_total"
t.float "grand_total"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
create_table "products", force: :cascade do |t|
t.string "name"
t.string "description"
t.float "price"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
比尔型号:
class Bill < ApplicationRecord
has_many :bill_items
has_many :products, through: :bill_items
accepts_nested_attributes_for :bill_items
end
BillItem型号:
class BillItem < ApplicationRecord
belongs_to :product
belongs_to :bill
end
产品型号:
class Product < ApplicationRecord
has_many :bill_items
has_many :bills, through: :bill_items
end
的ProductsController的是一个正常的,由支架产生的,它并不重要。
BillsController:
class BillsController < ApplicationController
before_action :set_bill, only: [:show, :update, :destroy, :edit]
def new
@bill = Bill.new
@bill.bill_items.build
end
def create
@bill = Bill.new(bill_params)
byebug
@bill.save
end
private
def set_bill
@bill = Bill.find(params[:id])
end
def bill_params
params.require(:bill).permit(:user_name, :dni, { bill_items_attributes: [:product_id, :amount, :bill_id] })
end
end
最后比尔新观点:
<%= form_for(@bill) do |f| %>
<div>
<%= f.label :user_name %>
<%= f.text_field :user_name %>
</div>
<div>
<%= f.label :dni %>
<%= f.text_field :dni %>
</div>
<%= f.fields_for :bill_items do |fp| %>
<div>
<%= fp.label :product %>
<%= fp.collection_select :product_id, Product.all, :id, :name %>
</div>
<div>
<%= fp.label :amount %>
<%= fp.number_field :amount %>
</div>
<% end %>
<%= f.submit %></div>
<% end %>
的问题是非常具体的,在轨道5时,它试图调用@ bill.save失败,并在它显示的错误:
#<ActiveModel::Errors:0x007fd9ea61ed58 @base=#<Bill id: nil, user_name: "asd", dni: "asd", expiration: nil, sub_total: nil, grand_total: nil, created_at: nil, updated_at: nil>, @messages={:"bill_items.bill"=>["must exist"]}, @details={"bill_items.bill"=>[{:error=>:blank}]}>
但它在Rails 4.2.6中完美工作。 整个项目文件夹在这里:https://github.com/TheSwash/bill_app currentrly在分支功能/ bills_controller
有人有关于发生了什么的想法吗?
这一切说,在错误 - '@messages = {: “bill_items.bill”= > [“must exist”]}',所以它与RoR5无关。 – Vucko
@Vucko,我得到你,但这是在轨道4的问题相同的实现工作没有这个错误,在这里相同的代码与Rails 4:https://github.com/TheSwash/bill_app_rails4 –