Question

好的，所以我有一个新的rails应用程序，我在ec2上的ubuntu 11.10，它有mongoid作为数据库，我一直收到此错误

ActionView::Template::Error (db_name must be a string or symbol):

这是我的config / mongoid.yml

development:
  host: localhost
  database: mm_development

test:
  host: localhost
  database: mm_test

# set these environment variables on your prod server
production:
  host: <%= ENV['MONGOID_HOST'] %>
  port: <%= ENV['MONGOID_PORT'] %>
  username: <%= ENV['MONGOID_USERNAME'] %>
  password: <%= ENV['MONGOID_PASSWORD'] %>
  database: <%= ENV['MONGOID_DATABASE'] %>
  # slaves:
  #   - host: slave1.local
  #     port: 27018
  #   - host: slave2.local
  #     port: 27019

我的database.yml是空白的，因为我不知道如果有什么需要去那里。这是我的mongoid的gemfile

gem 'rails', '3.2.3'
gem 'jquery-rails'
gem 'haml'
gem 'unicorn'
gem 'mongoid'

首先我想知道是否有人知道我需要用database.yml做什么，然后我如何解决这个问题.... mongo正在运行但是这个错误令人困惑

Answer 1

如果要使用空白config / database.yml运行或删除它，则必须删除对Active Record的所有引用。下面的工作对我来说，检查它的config / application.rb以及我必须做些什么来获得一个新的Rails项目来传递你提供的Gemfile和config / mongoid.yml的初始测试。请注意，您还应该在test / test_helper.rb中注释掉“fixture：all”。我建议您重新创建以下等效项作为从中开始的干净基础。希望这会有所帮助。

$ ruby -v
ruby 1.9.3p125 (2012-02-16 revision 34643) [x86_64-darwin11.3.0]
$ rails _3.2.3_ new free-11137-db_name
$ cd free-11137-db_name

Gemfile as per user

$ bundle install
$ gem install unicorn
$ bundle install
Using mongo (1.6.2)
Using mongoid (2.4.8)

$ rails g mongoid:config

config/mongoid.yml as per user
config/database.yml blank as per user
config/application.rb
    #require 'rails/all'
    require "action_controller/railtie"
    require "action_mailer/railtie"
    require "active_resource/railtie"
    require "rails/test_unit/railtie"
    # require "sprockets/railtie" # Uncomment this line for Rails 3.1+

remove all references to Active Record as follows
    config/application.rb
        #config.active_record.whitelist_attributes = true

    config/environments/development.rb
        #config.active_record.mass_assignment_sanitizer = :strict
        #config.active_record.auto_explain_threshold_in_seconds = 0.5

    config/environments/test.rb
      #config.active_record.mass_assignment_sanitizer = :strict

    test/test_helper.rb
        #fixtures :all

$ rails g model person
$ cat app/models/person.rb
class Person
  include Mongoid::Document
end
$ rm test/fixtures/people.yml
$ bundle exec rake test # succeeds
$ rm config/database.yml
$ bundle exec rake test # succeeds

ActionView :: Template :: Error（db_name必须是字符串或符号）：

1 个答案: