太阳黑子＆amp;延迟工作不适用于Mongoid

Question

太阳黑子＆amp; delayed_jobs都抱怨同样的问题：

#<Mongoid::Contextual::Mongo:0x882a9c8 @cache=nil, @klass=StoriesCache, @criteria=#<Mongoid::Criteria
  selector: {"_type"=>{"$in"=>["StoriesCache"]}}
  options:  {:sort=>{"last_7_days_views"=>-1}, :limit=>10}
  class:    StoriesCache
  embedded: false>
, @collection=#<Moped::Collection:0x882a788 @database=#<Moped::Database:0x882a7e8 @session=<Moped::Session seeds=["localhost:27017"] database=bgmn_codebase_development>, @name="bgmn_codebase_development">, @name="mongo_documents">, @query=#<Moped::Query:0x882a4b8 @selector={"_type"=>{"$in"=>["StoriesCache"]}}, @collection=#<Moped::Collection:0x882a788 @database=#<Moped::Database:0x882a7e8 @session=<Moped::Session seeds=["localhost:27017"] database=bgmn_codebase_development>, @name="bgmn_codebase_development">, @name="mongo_documents">, @operation=#<Moped::Protocol::Query
  @length=0
  @request_id=0
  @response_to=0
  @op_code=2004
  @flags=[]
  @full_collection_name="bgmn_codebase_development.mongo_documents"
  @skip=0
  @limit=10
  @selector={"$query"=>{"_type"=>{"$in"=>["StoriesCache"]}}, "$orderby"=>{"last_7_days_views"=>-1}}
  @fields=nil>>, @cache_loaded=true> is not a symbol

我有delayed_job（使用sql后端）和solr，它很乐意在mongo_mapper上工作但现在在mongoid上它们没有工作。