Ruby-on-rails 错误：分配属性时，您必须将散列作为参数传递
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Error: When assigning attributes, you must pass a hash as an argument
提问by Hanzawa Naoki
Hi ive just started with ruby and i was writing the controller and controller spec but i have some problems.
嗨，我刚开始使用 ruby，我正在编写控制器和控制器规范，但我遇到了一些问题。
document.rb
文件.rb
class Document < ActiveRecord::Base
validates_presence_of :name
has_many :votes
end
documents_controller.rb
文件控制器.rb
class API::DocumentsController < ApplicationController
def create
@document = Document.new(:name)
if @document.save
@document.update_attributes(name: @document.name.url) if document_params[:name].present?
render json: @document, serializer: DocumentSerializer, status: 201
else
render json: @document.errors, status: 422
end
end
end
documents_controller_spec.rb
文档控制器规范.rb
describe "POST 'index'" do
before { @attr = FactoryGirl.attributes_for(:document) }
describe "failure" do
describe "with missing parameters" do
before { @attr.each { |key,value| @attr[key] = nil } }
it "should not create a new record" do
lambda { post :create, document: @attr }.should_not change(Document, :count)
end
end
end
end
however, when i ran bundle exec rspec specto try out my tests i got an error:
然而，当我跑去bundle exec rspec spec尝试我的测试时，我得到了一个错误：
Failure/Error: lambda { post :create, document: @attr }.should_not change(Document, :count)
ArgumentError:
When assigning attributes, you must pass a hash as an argument.
# ./app/controllers/api/documents_controller.rb:8:in `create'
# ./spec/controllers/api/documents_controller_spec.rb:29:in `block (6 levels) in <top (required)>'
# ./spec/controllers/api/documents_controller_spec.rb:29:in `block (5 levels) in <top (required)>'
Can anyone shed some light on this?
任何人都可以对此有所了解吗？
采纳答案by Yanis Vieilly
The problem is in your controller.
问题出在您的控制器上。
def create
@document = Document.new(:name) # :name is a symbol, not a Hash like params for example
