如何使 Sunspot 与 Mongoid + Rails 3 一起使用

Question

我正在使用 Rails3/Mongoid 编写类似博客的应用程序，现在尝试使用 Sunspot 进行全文搜索

我按照以下步骤操作：https://github.com/outoftime/sunspot，将此https://github.com/jugyo/sunspot_mongoid 安装为插件，并添加以下代码以使sunspot:reindex 正常工作，

module Mongoid
  module BaseModel
    extend ActiveSupport::Concern

    included do
      scope :recent, desc(:_id)
      scope :exclude_ids, Proc.new { |ids| where(:_id.nin => ids.map(&:to_i)) }
    end

    module ClassMethods
      # like ActiveRecord find_by_id
      #def find_by_id(id)
      #  if id.is_a?(Integer) or id.is_a?(String)
      #    where(:_id => id.to_i).first
      #  else
      #    nil
      #  end
      #end

      def find_in_batches(opts = {})
        batch_size = opts[:batch_size] || 1000
        start = opts.delete(:start).to_i || 0
        objects = self.limit(batch_size).skip(start)
        t = Time.new
        while objects.any?
          yield objects
          start += batch_size
          # Rails.logger.debug("processed #{start} records in #{Time.new - t} seconds") if Rails.logger.debug?
          break if objects.size < batch_size
          objects = self.limit(batch_size).skip(start)
        end
      end
    end
  end
end

在我的帖子模型中：

  include Sunspot::Mongoid
  searchable do
    text :title, :stored => true
    text :content, :stored => true
    text :comments, :stored => true do
      comments.map { |comment| comment.content }
    end                                                                                                  
    time :last_comment_at
  end 

但是当我使用@search = Post.search 时，它总是给我这个错误..

Mongoid::Errors::InvalidFind in SearchController#index
Calling Document#find with nil is invalid

我发现可能和Mongoid有冲突，改成Post.solr_search

但是还是不行：

[parano@u330 attix.us]$ bundle exec rake sunspot:solr:start 
:public is no longer used to avoid overloading Module#public, use :public_folder instead
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/resque-1.19.0/lib/resque/server.rb:12:in `<class:Server>'
Removing stale PID file at /home/parano/code/rails_projects/attix.us/solr/pids/development/sunspot-solr-development.pid
Successfully started Solr ...


[parano@u330 attix.us]$ rails console
:public is no longer used to avoid overloading Module#public, use :public_folder instead
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/resque-1.19.0/lib/resque/server.rb:12:in `<class:Server>'
Loading development environment (Rails 3.1.3)

ruby-1.9.3-p0 :001 > p = Post.solr_search { fulltext 'vero' }

 => <Sunspot::Search:{:fq=>["type:Post"], :q=>"vero", :fl=>"* score", :qf=>"title_texts content_texts comments_texts", :defType=>"dismax", :start=>0, :rows=>30}> 

ruby-1.9.3-p0 :002 > p.results

NoMethodError: undefined method `id' for #<Array:0xb4916b8>
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/mongoid-2.3.4/lib/mongoid/criteria.rb:382:in `method_missing'
    from /home/parano/code/rails_projects/attix.us/vendor/plugins/sunspot_mongoid/lib/sunspot/mongoid.rb:45:in `criteria'
    from /home/parano/code/rails_projects/attix.us/vendor/plugins/sunspot_mongoid/lib/sunspot/mongoid.rb:39:in `load_all'
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/sunspot-1.3.0/lib/sunspot/search/abstract_search.rb:228:in `block in populate_hits'
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/sunspot-1.3.0/lib/sunspot/search/abstract_search.rb:224:in `each_pair'
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/sunspot-1.3.0/lib/sunspot/search/abstract_search.rb:224:in `populate_hits'
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/sunspot-1.3.0/lib/sunspot/search/hit.rb:90:in `result'
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/sunspot-1.3.0/lib/sunspot/search/abstract_search.rb:275:in `block in verified_hits'
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/sunspot-1.3.0/lib/sunspot/search/paginated_collection.rb:50:in `select'
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/sunspot-1.3.0/lib/sunspot/search/paginated_collection.rb:50:in `method_missing'
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/sunspot-1.3.0/lib/sunspot/search/abstract_search.rb:275:in `verified_hits'
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/sunspot-1.3.0/lib/sunspot/search/abstract_search.rb:59:in `results'
    from (irb):2
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.1.3/lib/rails/commands/console.rb:45:in `start'
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.1.3/lib/rails/commands/console.rb:8:in `start'
    from /home/parano/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.1.3/lib/rails/commands.rb:40:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'ruby-1.9.3-p0 :003 > 

有人可以帮助我吗？

Answer 1

这是非常测试版。我试图让最简单的例子与 sunspot_mongoid 一起工作，但没有运气。未包含 rake 任务，可能与 github 上的此问题有关：

https://github.com/jugyo/sunspot_mongoid/issues/7

也许如果您在那里提出问题，维护者将能够查看并回复。

Answer 2

我已经更新了sunspot_mongoid，现在效果很好:D https://github.com/hlegius/sunspot_mongoid2

Answer 3

在我的应用程序中，我只使用 sunspot_rails gem。这是我的太阳黑子配置文件：

Sunspot.config.pagination.default_per_page = 24

module MongoidAdapter
  class InstanceAdapter < Sunspot::Adapters::InstanceAdapter
    def id
      @instance.id.to_s
    end
  end

  class DataAccessor < Sunspot::Adapters::DataAccessor
    def load(id)
      @clazz.criteria.for_ids(BSON::ObjectId(id))
    end

    def load_all(ids)
      @clazz.criteria.in(:_id => ids.map {|id| BSON::ObjectId(id)})
    end
  end
end

Sunspot::Adapters::DataAccessor.register(MongoidAdapter::DataAccessor, Mongoid::Document)
Sunspot::Adapters::InstanceAdapter.register(MongoidAdapter::InstanceAdapter, Mongoid::Document)

Answer 4

如果您仍然想在 mongo 中使用 sunspot，您可以使用 sunspot_mongo（与 mongo mapper 和 mongoid 一起使用） https://github.com/derekharmel/sunspot_mongo

Answer 5

该项目有 4 个活跃的分叉。

您可以在此处查看所有 70 个分叉并选择您最喜欢的一个：

https://github.com/jugyo/sunspot_mongoid/network

我目前正在使用 hlegius 提到的新 sunspot_mongoid2 gem（谢谢！）

Answer 6

我可能会补充一点，有一个名为 sunspot_mongoid2 的新 gem 对我有用，但 sunspot_mongoid 非常失败。

我没有查看代码本身，但是从 GitHub 看来 sunspot_mongoid 已经有一段时间没有收到任何相关更新了。