如何让太阳黑子与Mongoid + Rails 3协同工作

Question

我使用Rails3/Mongoid编写了一个类似博客的应用程序，现在尝试使用Sunspot进行全文搜索

我遵循以下步骤：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

我发现它可能与Mongoid或其他东西冲突，并将其更改为Post.solr_search

但它仍然不能工作：

[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 > 

有人能帮我吗？

Answer 1

这是非常测试版的。我试着用sunspot_mongoid做最简单的例子，但没有成功。没有包含rake任务，可能与github上的这个问题有关：

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

也许如果你在那里提交一个问题，维护者将能够看一看并做出响应。

Answer 2

我已经更新了sunspot_mongoid，现在它工作得很好:D https://github.com/hlegius/sunspot_mongoid2

Answer 3

在我的应用程序中，我只使用了sunspot_rails gem。以下是我的Sunspot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)