Question

我有一个简单的restful rails api设置来提供json响应，我有一个模型line.rb，我有以下验证。

validates :title, :presence => true, :length => {:minimum => 3, :maximum => 40},
:appropriate_title => {:message => "cannot have . and /"}
validates :department, :presence => true
validates :owner, :presence => true
validates :account, :presence => true
validate  :unique_inputs
validates :title, :uniqueness => { 
  :scope => :account, 
  :message => 'is already taken for this account', 
  :case_sensitive => false }

在我的规范中，我有以下套件

 it "with invalid attributes" do
 post"#{url}/#{account.name}.json", :api_key => application.key, :line => {:department => "Survey"}
 --some assertions --
 body = JSON.parse(last_response.body)
 body.should eql({"error"=>{"message"=>"[\"Title can't be blank\", \"Title is too short (minimum is 3 characters)\",]"}})
 end

正如你所看到的，因为我没有提供该行的标题，它应该触发验证错误并满足我的断言，但是我得到相同的验证错误两次。

  {"error"=>{
    "message"=>"[\"Title can't be blank\", \"Title is too short (minimum is 3 characters)\", \"Title can't be blank\", \"Title is too short (minimum is 3 characters)\"]"
    }}

这真的很奇怪，因为在开发模式中，我没有两次得到此验证错误。如果你怀疑我在我的控制器中做错了什么，以下是我在控制器中的内容

@line = @current_user.lines.new(params[:line])
if @line.save
  respond_with(@line)
else
  render :json => {:error => {:message => @line.errors.full_messages}}
end

我无法弄清楚它是机架测试的错误还是我做错了什么。

Answer 1

你试过了吗？

validates :department, :presence => true
validates :owner, :presence => true
validates :account, :presence => true
validate  :unique_inputs
validates :title, :presence => true, 
                  :length => {:minimum => 3, :maximum => 40},
                  :appropriate_title => {:message => "cannot have . and /"},
                  :uniqueness => { 
                    :scope => :account, 
                    :message => 'is already taken for this account', 
                    :case_sensitive => false }

Answer 2

您是否有一些可能导致双重验证的关联？

您可以尝试添加validate => false，例如

has_one :account, :validate => false

我不完全确定为什么会发生这种情况，但有时这些关联会导致在同一个对象中运行两次验证。您也可以尝试通过

在控制台中测试它

l = User.last.lines.new(); l.valid?; l.errors
# might return in double errors
l = Line.new(); l.valid?; l.errors
# errors probably just once

在机架测试期间，活动模型发送验证错误两次

2 个答案: