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Rich Morin

2006-Oct-13 23:56 UTC

@session is getting reset?

I''m using r4rmusic (from "Ruby for Rails") as the basis for a
hangman game, but I appear to have broken something.  For
some reason, @session is not retaining values for me.


At the end of the login method (user_controller.rb), I''m
setting values into @session, then redirecting, as:

      puts ">>>>>  redirecting"                  #
TRACE
      @session[''foozle''] = ''bar''
      if (@session[''foozle''])
        puts ">>>>>  login: foozle =
''#{@session[''foozle'']}''"
      else
        puts ">>>>>  login: foozle is undefined"
      end

      redirect_to :controller => ''main'',
                  :action     => ''welcome''

This prints out
>>>>>  redirecting
>>>>>  login: foozle = ''bar''
Then, in get_user (application.rb), I try to retrieve them:

    if (@session)
      puts ">>>>>  @session is defined in get_user"
      puts ">>>>>  class  = #{@session.class}"

      if (@session[''foozle''])
        puts ">>>>>  get_user: foozle =
''#{@session[''foozle'']}''"
      else
        puts ">>>>>  get_user: foozle is undefined"
      end

This prints out
>>>>>  @session is defined in get_user
>>>>>  class  = CGI::Session
>>>>>  get_user: foozle is undefined

I haven''t a clue how to debug this.  Help?

-r
-- 
http://www.cfcl.com/rdm            Rich Morin
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Bill Walton

2006-Oct-14 00:47 UTC

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Re: @session is getting reset?

Hi Rich,

Rich Morin wrote:
> @session is not retaining values for me.
You don''t say what version of Rails you''re using, but if
it''s recent, the
problem could be that ''@session'' is no longer a supported way
of referencing
the session hash.  Use '':session'' instead.  The
''@'' prefix denotes an
instance variable.  Moving to :session reduces confusion.

hth,

Bill 

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Jeremy Kemper

2006-Oct-14 01:15 UTC

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Re: @session is getting reset?

On 10/13/06, Bill Walton
<bill.walton-xwVYE8SWAR3R7s880joybQ@public.gmane.org>
wrote:>
> > @session is not retaining values for me.
>
> You don''t say what version of Rails you''re using, but if
it''s recent, the
> problem could be that ''@session'' is no longer a supported
way of
> referencing
> the session hash.  Use '':session'' instead.  The
''@'' prefix denotes an
> instance variable.  Moving to :session reduces confusion.

@session and the other instance variables are deprecated but still
supported. You''ll see warnings galore until you update your code, but
no
breakage.  Use the session method (:session is a symbol, not a method call)
rather than the @session instance variable.

Best,
jeremy


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Rich Morin

2006-Oct-14 01:46 UTC

head link

@session is getting reset?

I got rid of the @ signs and went from strings to symbols,
but things are still broken:

At the end of the login method (user_controller.rb), I''m
setting values into session, then redirecting, as:

      puts ">>>>>  redirecting"                  #
TRACE
      session[:user] = u.id
      session[:foozle] = ''bar'' #{T}
      if (session[:foozle])
        puts ">>>>>  login: foozle =
''#{session[:foozle]}''"
      else
        puts ">>>>>  login: foozle is undefined"
      end

      redirect_to :controller => ''main'',
                  :action     => ''welcome''

This prints out
>>>>>  redirecting
>>>>>  login: foozle = ''bar''
Then, in get_user (application.rb), I try to retrieve them:

    if (session)
      puts ">>>>>  session is defined in get_user"
      puts ">>>>>  class  = #{session.class}"
      if (session[:foozle])
        puts ">>>>>  get_user: foozle =
''#{session[:foozle]}''"
      else
        puts ">>>>>  get_user: foozle is undefined"
      end
    else
      puts ">>>>>  session is undefined in get_user"
    end

This prints out
>>>>>  session is defined in get_user
>>>>>  class  = CGI::Session
>>>>>  get_user: foozle is undefined
>>>>>  session[:user] is undefined

Oh yeah:

% rails --version
Rails 1.1.6


-r
-- 
http://www.cfcl.com/rdm            Rich Morin
http://www.cfcl.com/rdm/resume     rdm-go8te9J4rpw@public.gmane.org
http://www.cfcl.com/rdm/weblog     +1 650-873-7841

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dblack-TKXtfPMJ4Ozk1uMJSBkQmQ@public.gmane.org

2006-Oct-14 02:51 UTC

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Re: @session is getting reset?

Hi --

On Fri, 13 Oct 2006, Jeremy Kemper wrote:
> On 10/13/06, Bill Walton
<bill.walton-xwVYE8SWAR3R7s880joybQ@public.gmane.org> wrote:
>>
>>> @session is not retaining values for me.
>>
>> You don''t say what version of Rails you''re using, but
if it''s recent, the
>> problem could be that ''@session'' is no longer a
supported way of
>> referencing
>> the session hash.  Use '':session'' instead.  The
''@'' prefix denotes an
>> instance variable.  Moving to :session reduces confusion.
>
>
> @session and the other instance variables are deprecated but still
> supported. You''ll see warnings galore until you update your code,
but no
> breakage.
And sometimes after you update your code :-)

   $ for f in `find app -type f -not -path "*svn*"`;
     do grep "@flash" $a; done
   $ cd test/integration
   $ ruby user_changes_profile_test.rb
   Loaded suite user_changes_profile_test
   Started
   DEPRECATION WARNING: @flash is deprecated! Call flash.[] instead of
   @flash.[].

   # etc.

This is on edge (r. 5271).  I haven''t dug into where it''s
coming from
yet.


David

-- 
                   David A. Black |
dblack-TKXtfPMJ4Ozk1uMJSBkQmQ@public.gmane.org
Author of "Ruby for Rails"   [1] | Ruby/Rails training &
consultancy [3]
DABlog (DAB''s Weblog)        [2] | Co-director, Ruby Central, Inc.  
[4]
[1] http://www.manning.com/black | [3] http://www.rubypowerandlight.com
[2] http://dablog.rubypal.com    | [4] http://www.rubycentral.org

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Rich Morin

2006-Oct-14 03:51 UTC

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@session is getting reset?

Out of curiosity, I went looking for the session files.  It looks like the
session information is getting stored, but not retrieved:

% L tmp/se*/*
-rw-------   1 rdm  69 Oct 13 20:46 tmp/sessions/ruby_sess.41ab9c6e783fb448
-rw-------   1 rdm  90 Oct 13 20:46 tmp/sessions/ruby_sess.d56b9b9cb629a50c

od -cx tmp/se*/*8
0000000  004  \b   { 006   "  \t   h   a   s   h   { 006   "  \n   f  
l
             0408    7b06    2209    6861    7368    7b06    220a    666c
0000020    a   s   h   I   C   :   ''   A   c   t   i   o   n   C   o  
n
             6173    6849    433a    2741    6374    696f    6e43    6f6e
0000040    t   r   o   l   l   e   r   :   :   F   l   a   s   h   :   :
             7472    6f6c    6c65    723a    3a46    6c61    7368    3a3a
0000060    F   l   a   s   h   H   a   s   h   {  \0 006   :  \n   @   u
             466c    6173    6848    6173    687b    0006    3a0a    4075
0000100    s   e   d   {  \0
             7365    647b    0000
0000105

% od -cx tmp/se*/*c
0000000  004  \b   { 006   "  \t   h   a   s   h   {  \b   :  \v   f   o
             0408    7b06    2209    6861    7368    7b08    3a0b    666f
0000020    o   z   l   e   "  \b   b   a   r   :  \t   u   s   e   r   i
             6f7a    6c65    2208    6261    723a    0975    7365    7269
0000040  006   "  \n   f   l   a   s   h   I   C   :   ''   A   c  
t   i
             0622    0a66    6c61    7368    4943    3a27    4163    7469
0000060    o   n   C   o   n   t   r   o   l   l   e   r   :   :   F   l
             6f6e    436f    6e74    726f    6c6c    6572    3a3a    466c
0000100    a   s   h   :   :   F   l   a   s   h   H   a   s   h   {  \0
             6173    683a    3a46    6c61    7368    4861    7368    7b00
0000120  006   :  \n   @   u   s   e   d   {  \0
             063a    0a40    7573    6564    7b00
0000132



-- 
http://www.cfcl.com/rdm            Rich Morin
http://www.cfcl.com/rdm/resume     rdm-go8te9J4rpw@public.gmane.org
http://www.cfcl.com/rdm/weblog     +1 650-873-7841

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Bill Walton

2006-Oct-14 17:05 UTC

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Re: @session is getting reset?

Hi Rich,

Rich Morin wrote:>
> I got rid of the @ signs and went from strings to symbols,
> but things are still broken:
I''ve been through it and honestly can''t see the problem
either.  Sorry I
can''t be more help.  I do hope you''ll post what you find here,
though.
Something on the wiki would be cool too.

Best regards,
Bill 

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Ben Bleything

2006-Oct-15 00:18 UTC

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Re: @session is getting reset?

On Fri, Oct 13, 2006, Rich Morin wrote:> I got rid of the @ signs and went from strings to symbols,
> but things are still broken:
I just copied/pasted your code into a test application, and it
WORKSFORME.  Either your environment is screwed up, or some code that
you''re not showing us is breaking it.

Try to copy exactly what you sent out into a new application and give it
a go.  You''ll have to change u.id to something else... if that works
fine, then your session is getting munged somewhere else in your app.

Ben

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Jodi Showers

2006-Oct-15 02:33 UTC

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Re: @session is getting reset?

(coming into this conversation late..)

possible write error(permissions) in your session folder?

J

On 14-Oct-06, at 8:18 PM, Ben Bleything wrote:
>
> On Fri, Oct 13, 2006, Rich Morin wrote:
>> I got rid of the @ signs and went from strings to symbols,
>> but things are still broken:
>
> I just copied/pasted your code into a test application, and it
> WORKSFORME.  Either your environment is screwed up, or some code that
> you''re not showing us is breaking it.
>
> Try to copy exactly what you sent out into a new application and  
> give it
> a go.  You''ll have to change u.id to something else... if that
works
> fine, then your session is getting munged somewhere else in your app.
>
> Ben
>
> >

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Rails - Oct 2006 - @session is getting reset?

@session is getting reset?

Re: @session is getting reset?

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@session is getting reset?

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@session is getting reset?

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Re: @session is getting reset?