Question

过去10天我和mongodb一起学习ROR。我无法在安装过程中获得mongoid_slug工作。请查看我在http://pastebin.com/Gtjzx3Xp

获得的内容

我有gem mongoid（3.0.4,3.0.1）。我的Gemfile看起来像：

source 'https://rubygems.org'

gem 'rails', '3.2.6'

# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'

gem "mongoid", "~> 3.0.0"

# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'

  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
  gem 'execjs'
  gem 'therubyracer', :platforms => :ruby

  gem 'uglifier', '>= 1.0.3'
end

gem 'jquery-rails'
gem 'mongoid_slug'
gem 'stringex'

然后，

$> bundle install
Fetching gem metadata from https://rubygems.org/.........
Fetching gem metadata from https://rubygems.org/..
Bundler could not find compatible versions for gem "mongoid":
  In Gemfile:
    mongoid_slug (>= 0) ruby depends on
      mongoid (~> 2.0.0.beta7) ruby

    mongoid (3.0.1)

我的控制器是：

class Post
  include Mongoid::Document
  include Mongoid::Slug
  field :name, type: String
  field :title, type: String
  field :content, type: String
  validates :title,  :presence => true, :length => { :minimum => 10 }
  has_many :comments
  slug :name
end

在网页上，当我跑步时，我得到：

Routing Error

uninitialized constant Mongoid::Slug
Try running rake routes for more information on available routes.

mongoid_slug不适用于当前版本的mongoid吗？我怎样才能让它发挥作用？

Answer 1

RubyGems version of mongoid_slug似乎已过时;那个人想要Mongoid 2.0（mongoid ~> 2.0），那就是你的bundle install错误来自哪里。 GitHub version似乎是for Mongoid 3.0：

s.add_dependency 'mongoid',  '~> 3.0'

所以你可以尝试在你的Gemfile中使用它：

gem 'mongoid_slug', :git => 'git://github.com/hakanensari/mongoid-slug.git'

使用GitHub版本。

Answer 2

这里最可能的答案是你的mongoid_slug版本太低了。尝试在Gemfile中指定最新版本：

gem 'mongoid_slug', '0.10.0'

然后bundle update mongoid_slug，看看是否能解决问题。

无法使用mongoid_slug

2 个答案: