关于stackoverflow的第一篇文章，事先为任何类似noob的事道道歉。
我在其中一项功能测试中收到错误，经过几个小时后，我似乎无法弄清楚如何通过它。
简而言之，invoice_schedule has_many invoice_milestones。然后，invoice_milestones具有属性estimate_percentage（整数）。我的模型models/invoice_schedule.rb有一个验证，要求所有estimate_percentages的总和必须等于100。
invoice_schedule创建操作的功能测试每次都失败。使用我当前的代码，它一直是错误的。我无法看到它如何与我传递的参数错误。
我还会注意到estimate has_one :invoice_schedule
感谢任何帮助或建议：）
模型/ invoice_schedule.rb：
class InvoiceSchedule < ActiveRecord::Base
belongs_to :estimate
has_many :invoice_milestones, :dependent => :destroy
accepts_nested_attributes_for :invoice_milestones, :allow_destroy => true
validate :total_must_equal_one_hundred_percent
def total_must_equal_one_hundred_percent
if total_percent != 100
errors.add(:invoice_milestones, "Total must equal 100%")
end
end
def total_percent
invoice_milestones.to_a.sum { |item| item.estimate_percentage || 0 }
end
end
模型/ invoice_milestone.rb：
class InvoiceMilestone < ActiveRecord::Base
belongs_to :invoice_schedule
belongs_to :invoice
validates :estimate_percentage, :numericality => {:only_integer => true, :greater_than_or_equal_to => 0, :less_than_or_equal_to => 100}
end
控制器/ invoice_schedules_controller.rb
def create
@invoice_schedule = InvoiceSchedule.new(params[:invoice_schedule])
@estimate = Estimate.find_by_id(params[:estimate_id])
respond_to do |format|
if @invoice_schedule.save
format.html { redirect_to invoice_schedule_path(@invoice_schedule), :flash => {:notice => 'Invoice schedule was successfully created.', :status => 'success'} }
format.json { render json: @invoice_schedule, status: :created, location: @invoice_schedule }
else
format.html { render action: "new" }
format.json { render json: @invoice_schedule.errors, status: :unprocessable_entity }
end
end
end
测试/功能/ invoice_schedules_controller_test.rb
setup do
@account = accounts(:lorem)
@estimate = estimates(:lorem_one)
@user = users(:lorem_vendor)
@request.host = "#{@account.subdomain}.myapp.local"
session[:user_id] = @user.id
@invoice_schedule = invoice_schedules(:lorem_one)
@invoice_milestone = invoice_milestones(:lorem_one)
@data_estimate = estimates(:lorem_two)
@data_invoice_schedule = @invoice_schedule.attributes.merge({estimate_id: @data_estimate.id})
end
test "should create invoice_schedule" do
assert_difference('InvoiceSchedule.count') do
post :create, :invoice_schedule => { estimate_id: @data_estimate, :invoice_milestone => {estimate_percentage: 100}}
end
assert_redirected_to estimate_invoice_schedule_path(@estimate, assigns(:invoice_schedule))
end
配置/ routes.rb中
require 'subdomain'
Accountimize::Application.routes.draw do
resources :invoices do
member do
get 'generateInvoiceFromMilestone'
end
end
resources :users
resources :sessions
get "sign_up" => "accounts#new", :as => "sign_up"
resources :accounts
resources :clients do
get :client_address, on: :member
end
resources :estimates do
resources :invoice_schedules, :shallow => true
end
resources :line_items
constraints(Subdomain) do
match '/' => 'accounts#show'
get "log_in" => "sessions#new", :as => "log_in"
get "log_out" => "sessions#destroy", :as => "log_out"
get "register" => "users#new", :as => "register"
end
root :to => 'site#index', :as => 'site'
end
我得到的错误的痕迹：
InvoiceSchedulesControllerTest
test_should_create_invoice_schedule ERROR
No route matches {:invoice_schedule=>{:estimate_id=>"706507935", :invoice_milestones_attributes=>{"0"=>{:description=>"test", :estimate_percentage=>"100"}}}, :controller=>"invoice_schedules", :action=>"create"}
STDERR:
Exception `ActionController::RoutingError' at /Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_dispatch/routing/route_set.rb:465:in `raise_routing_error'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_dispatch/routing/route_set.rb:461:in `rescue in generate'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_dispatch/routing/route_set.rb:453:in `generate'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_dispatch/routing/route_set.rb:494:in `generate'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_dispatch/routing/route_set.rb:490:in `generate_extras'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_dispatch/routing/route_set.rb:486:in `extra_keys'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_controller/test_case.rb:145:in `assign_parameters'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_controller/test_case.rb:438:in `process'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_controller/test_case.rb:49:in `process'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/actionpack-3.1.1/lib/action_controller/test_case.rb:370:in `post'
test/functional/invoice_schedules_controller_test.rb:35:in `block (2 levels) in <class:InvoiceSchedulesControllerTest>'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-3.1.1/lib/active_support/testing/assertions.rb:55:in `assert_difference'
test/functional/invoice_schedules_controller_test.rb:30:in `block in <class:InvoiceSchedulesControllerTest>'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-3.1.1/lib/active_support/testing/setup_and_teardown.rb:35:in `block in run'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-3.1.1/lib/active_support/callbacks.rb:444:in `_run_setup_callbacks'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-3.1.1/lib/active_support/callbacks.rb:81:in `run_callbacks'
/Users/Matt/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/gems/activesupport-3.1.1/lib/active_support/testing/setup_and_teardown.rb:34:in `run'
我已经尝试了很多其他方法来完成在功能测试中将invoice_milestone添加到新创建的invoice_schedule中，但似乎没有什么对我有用。如果添加了accepts_nested_attributes_for，为什么会收到上述路由错误？
答案 0 :(得分：3)
这有两个部分。首先，您需要使路由方面正确。由于您已在估算中嵌套了发票计划，因此您需要在顶级（而非estimate_id内）提供params[:invoice_schedules]，即
post :create, :estimate_id => @data_estimate.id, :invoice_schedule => {...}
然后期望你的控制者按照
的方式行事estimate = Estimate.find(params[:estimate_id])
@invoice_schedule = estimate.invoice_schedules.build params[:invoice_schedule]
第二部分是嵌套属性 - 你需要提供一个与Rails预期相匹配的params哈希。第一部分是哈希中的键应该是:invoice_milestones_attributes。由于这是has_many，因此需要相应的值
成为哈希数组或哈希哈希值（键被忽略 - 这主要是因为数组之间的交互和轨道参数传递中的哈希），例如
post :create, :estimate_id => @data_estimate.id,
:invoice_schedule => {
:invoice_milestones_attributes => [
{:estimate_percentage => 100}
]
}