I think this is now fixed but I have not tried. Can you please try it?
On Jun 5, 12:49 pm, Hans Donner <hans.don...@pobox.com> wrote:
> appreciate that, still learning python so I'm looking forward what I
> can learn from your fix.
>
> On Thu, Jun 4, 2009 at 11:16 PM, mdipierro<mdipie...@cs.depaul.edu> wrote:
>
> > I know what to do. I will fix it.
>
> > On Jun 4, 3:27 pm, HansD <hans.don...@pobox.com> wrote:
> >> not yet sure how to fix this, but fields of this type results in:
>
> >> class="<gluon.sql.SQLCustomType instance at 0x0990DC10>"
>
> >> On 25 mei, 07:17, mdipierro <mdipie...@cs.depaul.edu> wrote:
>
> >> > I do not know if this is a good idea and I'd like to hear your
> >> > opinions:
> >> > I have added in trunk to define custom column types
>
> >> > Here is an example of usage:
>
> >> > import cPickle
> >> > from gluon.sql importSQLCustomType
> >> > from decimal import Decimal
>
> >> > decimal =SQLCustomType(native='NUMERIC(10,2)',decoder=(lambda x:
> >> > Decimal(str(x))))
>
> >> > pickable =SQLCustomType(type='text',encoder=(lambda x:
> >> > "'%s'"%cPickle.dumps(x).replace("'","''")),decoder=(lambda x:
> >> > cPickle.loads(x)))
>
> >> > db.define_table('test',
> >> > SQLField('my_decimal',type=decimal),
> >> > SQLField('my_pickle',type=pickable))
>
> >> > theSQLCustomTypeconstructor takes the following arguments:
> >> > - type indicates how web2py sqlform should treat this field
> >> > - native indicates how the database should treat this field
> >> > - encoder indicates how to represent (and escape) a value in SQL
> >> > - decoder indicates how to process the value once it is extracted from
> >> > the database
>
> >> > It seems to work well with migrations. Of course using native=....
> >> > makes the custom table not portable across databases.
>
> >> > The implementation is not very clean but can be improved.
>
> >> > Is this a good idea?
>
> >> > Massimo
>
>
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