Mongoid removed the remove_all method?

[gotjosh]

I tried setting up database_cleaner on a project using mongoid 5.0.0.beta, it seems they removed the remove_all method so it's no longer working.

Here's the error I'm getting:

/Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/database_cleaner-1.4.1/lib/database_cleaner/moped/truncation_base.rb:14:in `block in clean': undefined method `remove_all' for #<Mongo::Collection::View:0x007fd6600c6c08> (NoMethodError)
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/database_cleaner-1.4.1/lib/database_cleaner/moped/truncation_base.rb:14:in `each'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/database_cleaner-1.4.1/lib/database_cleaner/moped/truncation_base.rb:14:in `clean'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/database_cleaner-1.4.1/lib/database_cleaner/base.rb:40:in `clean_with'
    from /Users/gotjosh/rails/aplus/spec/rails_helper.rb:15:in `block (2 levels) in <top (required)>'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/example.rb:333:in `instance_exec'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/example.rb:333:in `instance_exec'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/hooks.rb:357:in `run'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/configuration.rb:1559:in `block in run_hooks_with'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/configuration.rb:1559:in `each'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/configuration.rb:1559:in `run_hooks_with'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/configuration.rb:1525:in `with_suite_hooks'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/runner.rb:109:in `block in run_specs'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/reporter.rb:62:in `report'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/runner.rb:108:in `run_specs'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/runner.rb:86:in `run'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/runner.rb:70:in `run'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/lib/rspec/core/runner.rb:38:in `invoke'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/gems/rspec-core-3.2.2/exe/rspec:4:in `<top (required)>'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/bin/rspec:23:in `load'
    from /Users/gotjosh/.rbenv/versions/2.2.2/gemsets/aplus/bin/rspec:23:in `<main>'

[gotjosh]

In order to make it work, had to monkey patch the Mongo Ruby driver class.

module Mongo
  class Collection
    class View
      def remove_all
        remove(0)
      end
    end
  end
end

If someone could point me in the right direction I would be more than happy to submit a Pull Request so that it matches the correct version.

[Elyasin]

I ran into the same issue. Mongoid 5 does not use Moped anymore. Instead it uses the Ruby driver Mongo I think.

It would be nice to have a cleaner for Mongoid 5. Me too, if someone is willing to guide me a little bit, I would be happy to contribute.

[adamdilek]

Its not great great great solution.

Now I'm using

class DatabaseCleaner
  def self.clean
    models.each do |model|
      model.all.each(&:delete)
    end
  end

  def self.models
    if @models.to_a == []
      Rails.application.eager_load!
      @models = Mongoid.models
      @models.delete(TagSystem)
      @models.delete(Tag)
    end
    @models
  end
end

When you guys official support i will be very happy.