Constant cannot be found in the correct rails file

Hi,

I am trying to write a session store for rails that uses the big table
from
google. I have written the class and pasted into here. The problem is
I
keep getting this error when I try to start the dev server:

Caused by: org.jruby.exceptions.RaiseException: Expected
/Users/joshmoore/code/gaej_rails/test/tmp/war/WEB-INF/lib/big_table_servlet_store.rb
to define BigTableServletStore
at
Kernel.raise(/Users/joshmoore/code/gaej_rails/test/tmp/war/WEB-INF/vendor/rails/activesupport/lib/active_support/dependencies.rb:426)
at
ActiveSupport::Dependencies.load_missing_constant(/Users/joshmoore/code/gaej_rails/test/tmp/war/WEB-INF/vendor/rails/activesupport/lib/active_support/dependencies.rb:80)
at
ActiveSupport::Dependencies::ModuleConstMissing.const_missing_with_dependencies(/Users/joshmoore/code/gaej_rails/test/tmp/war/WEB-INF/vendor/rails/activesupport/lib/active_support/dependencies.rb:92)

I do not get it because BigTableServletStore is defined in
big_table_servlet_store.rb (it is the code below). Does anybody know
what
is going own?

module ActionController
module Session
class BigTableServletStore < AbstractStore
DATASTORE = Google::DatastoreServiceFactory.datastore_service
RAILS_SESSION_ENTITY = “__current_rails_session”
RAILS_SESSION_KEY = “__rails_session_data”

    def initialize(app, options = {})
      # Support old :expires option
      options[:expire_after] ||= options[:expires]

      super


      @session_id = session.session_id
      @key = Google::KeyFactory.create_key(RAILS_SESSION_ENTITY,

@session_id)
@data = {}

      super
    end

  end

  def marshal(data) 

ActiveSupport::Base64.encode64(Marshal.dump(data))
if data end
def unmarshal(data)
Marshal.load(ActiveSupport::Base64.decode64(data))
if data end

    private
      def get_session(env, sid)
        sid ||= generate_sid
        @key = Google::KeyFactory.create_key(RAILS_SESSION_ENTITY, 

sid)

        #begin
          entity = DATASTORE.get(@key)
          if entity.has_property(RAILS_SESSION_STORE)
          session = 

unmarshal(eneity.get_property(RAILS_SESSION_KEY)) ||
{}

          session = @pool.get(sid) || {}
        #rescue
        #  session = {}
        #end
        [sid, session]
      end

      def set_session(env, sid, session_data)
        options = env['rack.session.options']
        expiry  = options[:expire_after] || 0

          #begin
          entity = Google::Entity.new(RAILS_SEESION_ENTITY, sid)
          entity.set_property(RAILS_SESSION_KEY, marshal(options))
          DATASTORE.put(entity)

          #@pool.set(sid, session_data, expiry)
          return true
        #rescue
        #  return false
        #end
      end

  #def update
  #  entity = Google::Entity.new(RAILS_SESSION_ENTITY, @session_id)
  #  entity.set_property(RAILS_SESSION_KEY, marshal(@data))
  #  DATASTORE.put(entity)
  #end


  end
end

end

module Google
import com.google.appengine.api.datastore.DatastoreServiceFactory
import com.google.appengine.api.datastore.Entity
import com.google.appengine.api.datastore.KeyFactory
import com.google.appengine.api.datastore.Key
import com.google.appengine.api.datastore.EntityNotFoundException
end

Josh M. wrote:

Hi,

I am trying to write a session store for rails that uses the big table
from google. I have written the class and pasted into here. The
problem is I keep getting this error when I try to start the dev server:

Caused by: org.jruby.exceptions.RaiseException: Expected
/Users/joshmoore/code/gaej_rails/test/tmp/war/WEB-INF/lib/big_table_servlet_store.rb
to define BigTableServletStore

I do not get it because BigTableServletStore is defined in
big_table_servlet_store.rb (it is the code below). Does anybody know
what is going own?

Well, actually, big_table_servlet_store.rb defines
ActionController::Session::BigTableServletStore. I presume Rails is
doing its dependency magic here, by loading your script and then looking
in some prescribed location for the constant it expected to be defined.
Perhaps that constant should be defined under ActionController:: or at
top-level?

  • Charlie

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