current_user and user_signed_in? does not work with mongoid and rails 4.1.0 with devise

[santa-1987]

I get the error while trying to fetch current_user in ruby 2.1.1 and rails 4.1.0

[2] pry(#<#<Class:0x0000000662bbe0>>)> current_user
  MOPED: 127.0.0.1:27017 QUERY        database=htmlgen_development collection=users selector={"$query"=>{"_id"=>{"$oid"=>BSON::ObjectId('534e21e57573651144000000')}}, "$orderby"=>{:_id=>1}} flags=[] limit=-1 skip=0 batch_size=nil fields=nil runtime: 1.3477ms
Moped::Errors::QueryFailure: The operation: #<Moped::Protocol::Query
  @length=124
  @request_id=4
  @response_to=0
  @op_code=2004
  @flags=[]
  @full_collection_name="htmlgen_development.users"
  @skip=0
  @limit=-1
  @selector={"$query"=>{"_id"=>{"$oid"=>BSON::ObjectId('534e21e57573651144000000')}}, "$orderby"=>{:_id=>1}}
  @fields=nil>
failed with error 10068: "invalid operator: $oid"

See https://github.com/mongodb/mongo/blob/master/docs/errors.md
for details about this error.
from /home/usermac44/.rvm/gems/ruby-2.1.1@htmlgen/gems/moped-2.0.0.rc1/lib/moped/operation/read.rb:50:in `block in execute'

I use Gems:

gem 'devise', github: 'plataformatec/devise'
gem 'mongoid', github: 'mongoid/mongoid'
gem 'bson_ext'

Tried with all of the versions available for devise including lm-rails-4
Let us Know the Solution for this.

Thanks in advance !!!

[laurocaetano]

I guess it's a dup of #2882

right?

[rafaelfranca]

Right. Closing