无法通过管理员添加自定义产品属性

Question

我是 Spreecommerce 的新手，无法通过管理界面创建具有自定义属性“delivery_on”的产品。简而言之，我创建了 migrate，product_decorator.rb，将新属性添加到允许的属性，为管理页面创建一个 deface 文件。但是，当我尝试通过管理界面创建新产品时，我收到一条错误消息，指出“Delivery on can't be blank”。

非常感谢您的帮助！

我正在使用 ruby​​ 2.2.1、rails 4.2.3 和以下大礼包：

gem 'spree_core',             branch: '3-0-stable'
gem 'spree_api',              branch: '3-0-stable'
gem 'spree_backend',          branch: '3-0-stable'
gem 'spree_gateway',          github: 'spree/spree_gateway', branch: '3-0-stable'
gem 'devise'

复制步骤

• 创建迁移rails g migration add_delivery_on_to_spree_products

• 在迁移文件 YYYYMMDDHHMMSS_add_delivery_on_to_spree_products 中，插入对“更改”方法的更改：

  def change
    add_column :spree_products, :delivery_on, :date
    add_index :spree_products, :delivery_on
  end
  

• 运行 bundle exec rake db:migrate 并将属性添加到 spree_products 表中，但不会更新 scheema.rb

• 运行 rake db:migrate:reset 并更新了架构。但它首先清除了数据库。不确定这是不是理想的方法（遵循stackoverflow thread 上的指导）

• 在 app/models/spree 文件夹中，创建一个 'product_decorator.rb' 文件并添加

  Spree::Product.class_eval do
    validates :delivery_on, presence: true
    delegate_belongs_to :master, :delivery_on, :active
  end
  

• 在 app/controllers/application_controllers.rb 中，添加

  Spree::PermittedAttributes.product_attributes << :delivery_on
  Spree::Api::ApiHelpers.product_attributes << :delivery_on
  

• 在 app/overrides/spree 中，创建 deface 文件 'add_delivery_on_to_product_new'：

  Deface::Override.new(:virtual_path => 'spree/admin/products/new',
    :name => 'add_delivery_on_to_product_new',
    :original => '931806c52c232e6a373cb06fa739f3913ad13c3d',
    :insert_after => "erb[loud]:contains('text_field :available_on')",
    :text => "
      <%= f.field_container :delivery_on, class: ['form-group'] do %>
        <%= f.label :delivery_on, raw(Spree.t(:delivery_on) + content_tag(:span, ' *')) %>
        <%= f.error_message_on :delivery_on %>
        <%= f.text_field :delivery_on, :class => 'datepicker form-control' %>
      <% end %>
    ")
  

• 在 app/overrides/spree 中，创建 deface 文件 'add_delivery_on_to_product_form'：

  Deface::Override.new(:virtual_path => 'spree/admin/products/_form',
    :name => 'add_delivery_on_to_product_edit',
    :original => '931806c52c232e6a373cb06fa739f3913ad13c3d',
    :insert_after => "erb[loud]:contains('text_field :available_on')",
    :text => "
      <%= f.field_container :delivery_on, class: ['form-group'] do %>
        <%= f.label :delivery_on, raw(Spree.t(:delivery_on) + content_tag(:span, ' *')) %>
        <%= f.error_message_on :delivery_on %>
        <%= f.text_field :delivery_on, :value =>
  datepicker_field_value(@product.delivery_on), class: 'datepicker form-control' %>
      <% end %>
    ")
  

• 转到 localhost:3000/admin 并尝试创建新产品，但我收到一条错误消息，指出“Delivery on can't be blank。”

• 这是日志中的输出

  于 2015 年 9 月 14 日 22:24:20 +0200 开始为 ::1 发布“/admin/products” Spree::Admin::ProductsController#create as HTML 处理 参数：{"utf8"=>"✓", "authenticity_token"=>"O6BkeJEhquvCnu5nrIHwYYUZqkif8C9MqKRf4+qvjxH5UqkM9m+QDwvxcfBFqE4QcwPnDU/wrwAKGyk+wzVz8Q==", "product"=>{"name"=>"test", "sku"= >"123", "prototype_id"=>"", "price"=>"99", "available_on"=>"2015/09/12", "delivery_on"=>"2015/09/30", "shipping_category_id "=>"1"}, "按钮"=>""} Spree::Preference Load (0.1ms) SELECT "spree_preferences".* FROM "spree_preferences" WHERE "spree_preferences"."key" = ?限制 1 [["key", "spree/backend_configuration/locale"]] 用户负载 (0.4ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT 1 [["id", 1]] （0.1ms）从“spree_roles”内部加入“spree_roles_users”中选择计数（*）在“spree_roles”。“id”=“spree_roles_users”。“role_id”在哪里“spree_roles_users”。“user_id”=？ AND "spree_roles"."name" = ? [["user_id", 1], ["name", "admin"]] (0.2ms) 开始交易 Spree::Product Exists (1.1ms) SELECT 1 AS one FROM "spree_products" INNER JOIN "friendly_id_slugs" ON "friendly_id_slugs"."sluggable_id" = "spree_products"."id" AND "friendly_id_slugs"."deleted_at" IS NULL AND " friendly_id_slugs"."sluggable_type" = ? WHERE ("spree_products"."id" IS NOT NULL) AND "spree_products"."slug" = 'test' LIMIT 1 [["sluggable_type", "Spree::Product"]] Spree::Product Exists (0.2ms) SELECT 1 AS one FROM "spree_products" INNER JOIN "friendly_id_slugs" ON "friendly_id_slugs"."sluggable_id" = "spree_products"."id" AND "friendly_id_slugs"."deleted_at" IS NULL AND " friendly_id_slugs"."sluggable_type" = ? WHERE ("spree_products"."id" IS NOT NULL) AND "spree_products"."slug" = 'test-123' LIMIT 1 [["sluggable_type", "Spree::Product"]] Spree::Product Exists (0.5ms) SELECT 1 AS one FROM "spree_products" INNER JOIN "friendly_id_slugs" ON "friendly_id_slugs"."sluggable_id" = "spree_products"."id" AND "friendly_id_slugs"."deleted_at" IS NULL AND " friendly_id_slugs"."sluggable_type" = ? WHERE ("spree_products"."id" IS NOT NULL) AND ("friendly_id_slugs"."sluggable_type" = 'Spree::Product' AND "friendly_id_slugs"."slug" = 'test-123') 限制 1 [["sluggable_type ", "狂欢::产品"]] Spree::Variant Exists (0.5ms) SELECT 1 AS one FROM "spree_variants" WHERE "spree_variants"."sku" = '123' AND "spree_variants"."deleted_at" IS NULL LIMIT 1 Spree::Product Exists (0.1ms) SELECT 1 AS one FROM "spree_products" WHERE "spree_products"."slug" = 'test-123' LIMIT 1 (0.1ms) 回滚事务

宝石文件

source 'https://rubygems.org'
ruby '2.2.1'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails',                  '4.2.3'
# Use SCSS for stylesheets
gem 'sass-rails',             '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier',               '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails',           '~> 4.1.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder',               '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc',                   '~> 0.4.0', group: :doc

gem 'spree_core',             branch: '3-0-stable'
gem 'spree_api',              branch: '3-0-stable'
gem 'spree_backend',          branch: '3-0-stable'
gem 'spree_gateway',          github: 'spree/spree_gateway', branch: '3-0-stable'
gem 'devise'

# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use Unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug'
  # Use sqlite3 as the database for Active Record
  gem 'sqlite3'
  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
  # Access an IRB console on exception pages or by using <%= console %> in views
  gem 'web-console',          '~> 2.0'
end

group :production do
  # Use PostgreSQL as the database for Active Record
  gem 'pg',                   '0.18.2'
  # Use rails_12 factor to enable serving assets in production and setting your logger to standard out.
  gem 'rails_12factor',       '0.0.3'
end

Answer 1

我删除了

delegate_belongs_to :product, :delivery_on

来自我的 product_decorator.rb 文件，这解决了问题。

说实话，我并没有真正理解 delegate_belongs_to 是做什么的，但我添加了它，因为官方 Spree deface overrides tutorial 指示我们这样做：

我们还需要将 sale_price 委托给主变体，以便 让更新后的产品编辑表单生效。

我们可以通过创建一个新文件来做到这一点 app/models/spree/product_decorator.rb 并添加以下内容 给它：

module Spree Product.class_eval 做 delegate_belongs_to :master, :sale_price end end

注意，我也尝试过使用 delegate_belongs_to :master, :delivery_on ，但也没有用。