hi Guillermo,

�

you are right, I didn't use rawValues , and that was the problem.

The problem is not with Glorp but with opendbx and in fact it is the same as the issue pointed to by Mariano (issue 10) and another (issue 16)

I have a simpler test to reproduce than yours (in fact you don't need to use UNION in your test):

�| settings dbc stmt resultSet coll |
�settings := DBXConnectionSettings
����host: SmalltalkImage current imagePath, '/'
����port: ''
����database:� 'testdb.dat'
����userName: ''
����userPassword: ''.
�dbc := DBXConnection platform: DBXSqlitePlatform� new settings: settings.
�[
�dbc connect.
�dbc open.
�dbc execute: 'drop table if exists foo'.
�dbc execute: 'create table foo (id int not null, name varchar(64) null )'.
�dbc execute: 'insert into foo values(1,� null� )'.
�dbc execute: 'insert into foo values(2, ''riptobe'' )'.
�resultSet� := dbc execute: 'SELECT * FROM foo'.
�coll := OrderedCollection new.

"error here for null value in second row"
�resultSet rows do: [ :r | coll add: r values ].
�coll inspect.
�] ensure: [ dbc close ].

�

The problem is�that opendbx doesn't return the correct datatype for columns when they have null values, apparently it keeps the description for the column that was readen for the first row (?)

And the same problem exists with MSSQL, it is not related to the special sqlite UNKNOW datatype but a problem in opendbx (my test also breaks with mssql)

I am writing a test case for that,

and I will also have a look at opendbx source code.

�

Cheers

Alain

"Guillermo Polito" <guillermopolito@gmail.com> a �crit dans le message de news: CAOBmb52JNRM+xQBx9kqNm9aMero3avyriXWsytbMqK=JBH8KAg@mail.gmail.com...

Hi Alain!

where did you get GlorpDBX? :)� Was it from the DBXTalk repo?

On Thu, Aug 11, 2011 at 5:28 PM, Alain Rastoul <alr.dev-GANU6spQydw@public.gmane.org> wrote:

Hi Mariano

�

I may be wrong, but I don't think that this issue is not related, I have first checked that reading my data with squeakdbx is ok.

How did you read the data?� Using values or raw values?

Can you send us/me the query sent by glorp?� Is it a polymorphic or inheritance query?
�

Thanks!
Guille

�

After searching a bit I think that the problem is in Glorp in

�

DBXPlatform>>createDataTypesMap
�"Creates and returns a map that maps Smalltalk classes to SQL datatypes.
�The 16r means it is hexadecimal."
�^Dictionary new

...

��at: 16rFF put: (DBXTypeNotSupported type: #UNKNOWN);

Perhaps a solution would be I think it should be something like

at: 16rFF put: (DBXTypeNotSupported type: UndefinedObject);

with a fromDbxString method defined in UndefinedObject.

fromDbxString: aString

��� ^ convert the string to the true column datatype

�

The problem here is that there should be a conversion from the string to the column datatype and the column datatype is unknown here...

I don't know either if it is possible to get it from squeakdbx at this point (while fetching data) ?

�

�

"Mariano Martinez Peck" <marianopeck@gmail.com> a �crit dans le message de news:CAA+-=mWQ8y4zLdQbhDx3-hBPXUF_-S9wtvVOD8ia+=6tC8-ufg@mail.gmail.com...

On Thu, Aug 11, 2011 at 10:02 PM, Alain Rastoul <alr.dev@free.fr> wrote:

Hi

I 'm writing a small app with pharo +seaside + glorp + squeakdbx + sqlite and I have a problem reading null values from my database.

Hi Alain. Do you know exactly which query is being sent?�� Do you think it can be related to this: http://code.google.com/p/dbxtalk/issues/detail?id=10� ?

�

It seems that glorp stores a DbxTypeNotSupported in the column description for null values when the first row has a null value (the column datatype is varchar).
Any workaround or advice is welcome before I dig into Glorp code
TIA

Alain

--
Mariano
http://marianopeck.wordpress.com