# If object exists then compare the two, otherwise return false
#
# @exampleDetermine if we can compare.
#   matcher.determine("test", "$in")
#
# @param[ Object ] value The value to compare with.
# @param[ Symbol, String ] operator The comparison operation.
#
# @return [ true, false ] The comparison or false.
#
# @since1.0.0
  def determine(value, operator)
    puts value
    puts operator
    attribute.__array__.any? {|attr|
      attr ? attr.send(operator, first(value)) : false
    }
  end

> id = '54909ce4752d71293e320900'
> user = User.where(id: id).first
2.0.0 :010 > user.delete
{"$gt"=>1}
>
{"$gt"=>1}
>
{"$gt"=>1}
>
{"$gt"=>1}
>
{"$gt"=>1}
>
{"$gt"=>1}
>
{"$gt"=>1}
>
{"$gt"=>1}
>
{"$gt"=>1}
>
{"$gt"=>nil}
>
{"$gt"=>nil}
>
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/matchable/default.rb:69:in `>'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/matchable/default.rb:69:in `block in determine'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/matchable/default.rb:68:in `each'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/matchable/default.rb:68:in `any?'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/matchable/default.rb:68:in `determine'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/matchable/gt.rb:17:in `matches?'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/matchable.rb:58:in `block (2 levels) in matches?'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/matchable.rb:57:in `each'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/matchable.rb:57:in `block in matches?'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/matchable.rb:55:in `each_pair'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/matchable.rb:55:in `matches?'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/contextual/memory.rb:152:in `block in initialize'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/contextual/memory.rb:149:in `select'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/contextual/memory.rb:149:in `initialize'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/contextual.rb:53:in `new'
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/contextual.rb:53:in `create_context'
... 25 levels...
from /path/toshared/bundle/ruby/2.0.0/gems/mongoid-4.0.0/lib/mongoid/persistable/deletable.rb:23:in `delete'
from (irb):10
from /path/toshared/bundle/ruby/2.0.0/gems/railties-4.1.6/lib/rails/commands/console.rb:90:in `start'
from /path/toshared/bundle/ruby/2.0.0/gems/railties-4.1.6/lib/rails/commands/console.rb:9:in `start'
from /path/toshared/bundle/ruby/2.0.0/gems/railties-4.1.6/lib/rails/commands/commands_tasks.rb:69:in `console'
from /path/toshared/bundle/ruby/2.0.0/gems/railties-4.1.6/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
from /path/toshared/bundle/ruby/2.0.0/gems/railties-4.1.6/lib/rails/commands.rb:17:in `<top (required)>'
from /path/toshared/bundle/ruby/2.0.0/gems/railties-4.1.6/lib/rails/app_rails_loader.rb:43:in `require'
from /path/toshared/bundle/ruby/2.0.0/gems/railties-4.1.6/lib/rails/app_rails_loader.rb:43:in `block in exec_app_rails'
from /path/toshared/bundle/ruby/2.0.0/gems/railties-4.1.6/lib/rails/app_rails_loader.rb:32:in `loop'
from /path/toshared/bundle/ruby/2.0.0/gems/railties-4.1.6/lib/rails/app_rails_loader.rb:32:in `exec_app_rails'
from /path/toshared/bundle/ruby/2.0.0/gems/railties-4.1.6/lib/rails/cli.rb:5:in `<top (required)>'
from /path/toshared/bundle/ruby/2.0.0/gems/railties-4.1.6/bin/rails:9:in `require'
from /path/toshared/bundle/ruby/2.0.0/gems/railties-4.1.6/bin/rails:9:in `<top (required)>'
from /path/toshared/bundle/ruby/2.0.0/bin/rails:23:in `load'
from /path/toshared/bundle/ruby/2.0.0/bin/rails:23:in `<main>'2.0.0 :011 > exit