Rails - Jan 2006 - ''stack level too deep'' error message

Hi,

I''m trying to pull info from my company''s ldap server. I
can''t use
ActiveLDAP because our servers don''t support schema queries.

I''ve created the model and the controller can pull the information
(I''ve
verified this from the log). However, when it comes time for the view to 
query the LDAP::Entry object, I keep getting ''stack level too
deep''.

I''ve tried searching on-line (thou shalt query google before asking 
stupid questions!) and have not found anything.

Any ideas what''s going on?

Thanks,
Dave

-- 
Posted via http://www.ruby-forum.com/.

Usually means your stack in a stupid loop somewhere. Inifinite
recursion at its best.  :)
Hopefully its in your code where you can easily track down the problem.

On 1/11/06, Dave <davefox@csd.net> wrote:
> Hi,
>
> I''m trying to pull info from my company''s ldap server. I
can''t use
> ActiveLDAP because our servers don''t support schema queries.
>
> I''ve created the model and the controller can pull the information
(I''ve
> verified this from the log). However, when it comes time for the view to
> query the LDAP::Entry object, I keep getting ''stack level too
deep''.
>
> I''ve tried searching on-line (thou shalt query google before
asking
> stupid questions!) and have not found anything.
>
> Any ideas what''s going on?
>
> Thanks,
> Dave
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

Nick Stuart wrote:
> Usually means your stack in a stupid loop somewhere. Inifinite
> recursion at its best.  :)
> Hopefully its in your code where you can easily track down the problem.
Nope. My code''s dirt simple at this point. Fetch my ldap entry from the
server and display.

I have some logging statements in my controller. The ldap entry object 
has data in it that I can pull out. It''s when I get to the form that I 
get these wonderful errors.

-- 
Posted via http://www.ruby-forum.com/.

could you post some code of whats going on around this point? helps to
digest and see whats going on.

Also, would be handy to point out exactly where the code stops working
and gets stuck. Never used the LDAP package before, so no idea if it
could be that or not.

On 1/11/06, Dave <davefox@csd.net> wrote:
> Nick Stuart wrote:
> > Usually means your stack in a stupid loop somewhere. Inifinite
> > recursion at its best.  :)
> > Hopefully its in your code where you can easily track down the
problem.
>
> Nope. My code''s dirt simple at this point. Fetch my ldap entry
from the
> server and display.
>
> I have some logging statements in my controller. The ldap entry object
> has data in it that I can pull out. It''s when I get to the form
that I
> get these wonderful errors.
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

Nick Stuart wrote:
> could you post some code of whats going on around this point? helps to
> digest and see whats going on.
Here''s the Model:

class User
  def search(filter)
    LDAP::Conn.new(''ldap.server'',389) { |conn|
     
conn.search('''',LDAP::LDAP_SCOPE_SUBTREE,"(&(#{filter}))")
{ |e|
      arr << e
    }
    return arr # yeah, I know the return is redundant. It makes me feel 
better!
  end
end

The controller:

class UserController < ApplicationController
  def index
    user = User.new
    @array = user.search(''emailaddress=user@zzz.com'')
  end
end

And the view, index.rhtml

<h1>User</h1>
Class: <%= @array.class %><br>
cn: <%= @array.get_values(''cn'') %><br>

Ok. Here''s what''s going on. The code that went into the model
works in a
stand alone script. It fetches the data from the ldap server and will 
print any of the attributes from the ldap server.

When I try to put the code into rails, I can verify that the model gets 
the data (by using puts statements in the model or controller. The info 
prints out in the  shell running scripts/server!) and so can the 
controller. The problems start when I try to use the @array.

If I just print out the class, I get LDAP::Entry object that I expect. 
When I try anything else, like the get_values method (which works from 
the stand alone code AND from the model/controller debugging 
statements!) I get the ''stack level too deep'' message.

Drives me nuts! And if I''m going to move any of my projects from perl
to
rails, I need to pull data from the ldap server!

Dave

-- 
Posted via http://www.ruby-forum.com/.

Dave,

Take a look at my post ''rails bug ? metadata lost between page 
invocation ?''
  http://www.ruby-forum.com/topic/51651#new

I ended with a weird ''stack too deep'' weird issue as, with
objects
mysteriously ''loosing'' their methods... I don''t
know... maybe it has
nothing to do, but it does sounds strangely similar.

Try this and let me know if this works: set ''config.cache_classes = 
true'' in your config/environments/development.rb.

Again, maybe it is completely unrelated, but who knows...

-Didier

-- 
Posted via http://www.ruby-forum.com/.

> Try this and let me know if this works: set ''config.cache_classes
=
> true'' in your config/environments/development.rb.
No luck. I still get the ''stack level too deep'' error messge.

-- 
Posted via http://www.ruby-forum.com/.

2006/1/14, Dave <davefox@csd.net>:
> Nick Stuart wrote:
> > could you post some code of whats going on around this point? helps to
> > digest and see whats going on.
>
> Here''s the Model:
>
> class User
>   def search(filter)
>     LDAP::Conn.new(''ldap.server'',389) { |conn|
>      
conn.search('''',LDAP::LDAP_SCOPE_SUBTREE,"(&(#{filter}))")
{ |e|
>       arr << e
>     }
>     return arr
>   end
> end
>
What else is there in your User class? The above code doen''t look like
it''s valid, the Conn.new block opens with { and clses with end. There
aren''t any alias calls in your model are there?

Douglas

>>Here''s the Model:
>>
>>class User
>>  def search(filter)
>>    LDAP::Conn.new(''ldap.server'',389) { |conn|
>>     
conn.search('''',LDAP::LDAP_SCOPE_SUBTREE,"(&(#{filter}))")
{ |e|
>>      arr << e
>>    }
>>    return arr
>>  end
>>end
>>
>>    
>>
>
>What else is there in your User class? The above code doen''t look
like
>it''s valid, the Conn.new block opens with { and clses with end.
There
>aren''t any alias calls in your model are there?
>
>Douglas
>  
>
Opps, there should be another } after the ''return arr''
statement. Other
than that typo in my posting, that''s it.

Dave