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Aneesha Bakharia

2006-May-30 11:39 UTC

[Rails] Help with Shopping Cart example from Agile Web Development 2nd Edition

Hi

I get to about page 103 of the book and get an application error. Further
investigation reveals the following error in the dev log:
Mysql::Error: #42S22Unknown column ''id'' in ''where
clause'': UPDATE sessions
SET `data`
''BAh7BzoJY2FydG86CUNhcnQGOgtAaXRlbXNbBm86DUNhcnRJdGVtBzoOQHF1\nYW50aXR5aQY6DUBwcm9kdWN0bzoMUHJvZHVjdAY6EEBhdHRyaWJ1dGVzewsi\nDmltYWdlX3VybCIWL2ltYWdlcy9yYWlscy5wbmciCnRpdGxlIgdzZCIKcHJp\nY2UiCjIyLjk1IhNkYXRlX2F2YWlsYWJsZSIYMjAwNi0wMS0wNiAxNjoxNzow\nMCIHaWQiBjEiEGRlc2NyaXB0aW9uIghzZGYiCmZsYXNoSUM6J0FjdGlvbkNv\nbnRyb2xsZXI6OkZsYXNoOjpGbGFzaEhhc2h7AAY6CkB1c2VkewA=\n'',
`session_id` = ''8766ece0645091e5e6769c2abf77c5c7'',
`updated_at` ''2006-05-30 21:29:38'' WHERE id = NULL

If I delete the session entry from the database, the product listing is
displayed, but if I reload the page I get the error again. Any help will be
very much appreciated.
-- 
Aneesha
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Stephen Bartholomew

2006-May-30 11:46 UTC

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[Rails] Help with Shopping Cart example from Agile Web Development 2nd Edition

Hmm.. the error says that the ''id'' column can''t be
found - that should
have been created when the sessions table was set up.

Have you checked the ''sessions'' table in the database to see
if it has
an ''id'' column?

Steve

Aneesha Bakharia wrote:> Hi
> 
> I get to about page 103 of the book and get an application error. 
> Further investigation reveals the following error in the dev log:
> Mysql::Error: #42S22Unknown column ''id'' in
''where clause'': UPDATE
> sessions SET `data` = 
>
''BAh7BzoJY2FydG86CUNhcnQGOgtAaXRlbXNbBm86DUNhcnRJdGVtBzoOQHF1\nYW50aXR5aQY6DUBwcm9kdWN0bzoMUHJvZHVjdAY6EEBhdHRyaWJ1dGVzewsi\nDmltYWdlX3VybCIWL2ltYWdlcy9yYWlscy5wbmciCnRpdGxlIgdzZCIKcHJp\nY2UiCjIyLjk1IhNkYXRlX2F2YWlsYWJsZSIYMjAwNi0wMS0wNiAxNjoxNzow\nMCIHaWQiBjEiEGRlc2NyaXB0aW9uIghzZGYiCmZsYXNoSUM6J0FjdGlvbkNv\nbnRyb2xsZXI6OkZsYXNoOjpGbGFzaEhhc2h7AAY6CkB1c2VkewA=\n'',
> `session_id` = ''8766ece0645091e5e6769c2abf77c5c7'',
`updated_at` =
> ''2006-05-30 21:29:38'' WHERE id = NULL
> 
> If I delete the session entry from the database, the product listing is 
> displayed, but if I reload the page I get the error again. Any help will 
> be very much appreciated.
> -- 
> Aneesha
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
> 
> 
> ------------------------------------------------------------------------
> 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 29/05/2006

Aneesha Bakharia

2006-May-30 11:59 UTC

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[Rails] Help with Shopping Cart example from Agile Web Development 2nd Edition

I had trouble running the rake task eg rake db:sessions:create.
The task runs but the table does not get created. So I just went and created
the database with the three columns from the migration that was generated eg

      t.column :session_id, :string
      t.column :data, :text
      t.column :updated_at, :datetime
I''ve added an id field and the shopping cart is working. Any idea why
the
rake task did not create the table.

Thanks for you help.

Aneesha

On 5/30/06, Stephen Bartholomew <sb@2404.co.uk>
wrote:>
> Hmm.. the error says that the ''id'' column can''t
be found - that should
> have been created when the sessions table was set up.
>
> Have you checked the ''sessions'' table in the database to
see if it has
> an ''id'' column?
>
> Steve
>
> Aneesha Bakharia wrote:
> > Hi
> >
> > I get to about page 103 of the book and get an application error.
> > Further investigation reveals the following error in the dev log:
> > Mysql::Error: #42S22Unknown column ''id'' in
''where clause'': UPDATE
> > sessions SET `data` > >
>
''BAh7BzoJY2FydG86CUNhcnQGOgtAaXRlbXNbBm86DUNhcnRJdGVtBzoOQHF1\nYW50aXR5aQY6DUBwcm9kdWN0bzoMUHJvZHVjdAY6EEBhdHRyaWJ1dGVzewsi\nDmltYWdlX3VybCIWL2ltYWdlcy9yYWlscy5wbmciCnRpdGxlIgdzZCIKcHJp\nY2UiCjIyLjk1IhNkYXRlX2F2YWlsYWJsZSIYMjAwNi0wMS0wNiAxNjoxNzow\nMCIHaWQiBjEiEGRlc2NyaXB0aW9uIghzZGYiCmZsYXNoSUM6J0FjdGlvbkNv\nbnRyb2xsZXI6OkZsYXNoOjpGbGFzaEhhc2h7AAY6CkB1c2VkewA=\n'',
> > `session_id` = ''8766ece0645091e5e6769c2abf77c5c7'',
`updated_at` > > ''2006-05-30 21:29:38'' WHERE id = NULL
> >
> > If I delete the session entry from the database, the product listing
is
> > displayed, but if I reload the page I get the error again. Any help
will
> > be very much appreciated.
> > --
> > Aneesha
> >
> >
> >
------------------------------------------------------------------------
> >
> > _______________________________________________
> > Rails mailing list
> > Rails@lists.rubyonrails.org
> > http://lists.rubyonrails.org/mailman/listinfo/rails
> >
> >
> >
------------------------------------------------------------------------
> >
> > No virus found in this incoming message.
> > Checked by AVG Free Edition.
> > Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date:
> 29/05/2006
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>


-- 
Aneesha
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Stephen Bartholomew

2006-May-30 12:05 UTC

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[Rails] Help with Shopping Cart example from Agile Web Development 2nd Edition

Did you get any errors when you run the rake task?  I''m not sure why it
wouldn''t work...

Just as a note, the ''id'' doesn''t appear in the
migrations because it''s a
given convention - you wont have to specify it when creating tables 
using migrations.

Steve


Aneesha Bakharia wrote:> I had trouble running the rake task eg rake db:sessions:create.
> The task runs but the table does not get created. So I just went and 
> created the database with the three columns from the migration that was 
> generated eg      
>       t.column :session_id, :string
>       t.column :data, :text
>       t.column :updated_at, :datetime
> I''ve added an id field and the shopping cart is working. Any idea
why
> the rake task did not create the table.
> 
> Thanks for you help.
> 
> Aneesha
> 
> On 5/30/06, *Stephen Bartholomew* <sb@2404.co.uk
<mailto:sb@2404.co.uk>>
> wrote:
> 
>     Hmm.. the error says that the ''id'' column
can''t be found - that should
>     have been created when the sessions table was set up.
> 
>     Have you checked the ''sessions'' table in the database
to see if it has
>     an ''id'' column?
> 
>     Steve
> 
>     Aneesha Bakharia wrote:
>      > Hi
>      >
>      > I get to about page 103 of the book and get an application error.
>      > Further investigation reveals the following error in the dev log:
>      > Mysql::Error: #42S22Unknown column ''id'' in
''where clause'': UPDATE
>      > sessions SET `data` >      >
>    
''BAh7BzoJY2FydG86CUNhcnQGOgtAaXRlbXNbBm86DUNhcnRJdGVtBzoOQHF1\nYW50aXR5aQY6DUBwcm9kdWN0bzoMUHJvZHVjdAY6EEBhdHRyaWJ1dGVzewsi\nDmltYWdlX3VybCIWL2ltYWdlcy9yYWlscy5wbmciCnRpdGxlIgdzZCIKcHJp\nY2UiCjIyLjk1IhNkYXRlX2F2YWlsYWJsZSIYMjAwNi0wMS0wNiAxNjoxNzow\nMCIHaWQiBjEiEGRlc2NyaXB0aW9uIghzZGYiCmZsYXNoSUM6J0FjdGlvbkNv\nbnRyb2xsZXI6OkZsYXNoOjpGbGFzaEhhc2h7AAY6CkB1c2VkewA=\n'',
> 
>      > `session_id` =
''8766ece0645091e5e6769c2abf77c5c7'', `updated_at` >     
> ''2006-05-30 21:29:38'' WHERE id = NULL
>      >
>      > If I delete the session entry from the database, the product
>     listing is
>      > displayed, but if I reload the page I get the error again. Any
>     help will
>      > be very much appreciated.
>      > --
>      > Aneesha
>      >
>      >
>      >
>    
------------------------------------------------------------------------
>      >
>      > _______________________________________________
>      > Rails mailing list
>      > Rails@lists.rubyonrails.org
<mailto:Rails@lists.rubyonrails.org>
>      > http://lists.rubyonrails.org/mailman/listinfo/rails
>     <http://lists.rubyonrails.org/mailman/listinfo/rails>
>      >
>      >
>      >
>    
------------------------------------------------------------------------
>      >
>      > No virus found in this incoming message.
>      > Checked by AVG Free Edition.
>      > Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date:
>     29/05/2006
>     _______________________________________________
>     Rails mailing list
>     Rails@lists.rubyonrails.org <mailto:Rails@lists.rubyonrails.org>
>     http://lists.rubyonrails.org/mailman/listinfo/rails
> 
> 
> 
> 
> -- 
> Aneesha
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
> 
> 
> ------------------------------------------------------------------------
> 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.1.394 / Virus Database: 268.7.4/351 - Release Date: 29/05/2006

Peter Szinek

2006-May-30 12:27 UTC

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[Rails] Help with Shopping Cart example from Agile Web Development 2nd Edition

Aneesha Bakharia wrote:> I had trouble running the rake task eg rake db:sessions:create.
> The task runs but the table does not get created. So I just went and 
Are you sure you are rake-ing db:sessions:create and not 
db:session:create? I wrote a post about this on my blog[1], and it is my 
third most popular post so far - it seems lot of people are running into 
this...

bw,
Peter

[1]http://www.rubyrailways.com/dbsessioncreate-problem-in-the-depot-app/

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