Hi.
Please, explain why you need a separate description table, and why is it
referencing product while the same time product references description table.
I think something is wrong with the database design. I didn't come across any
database that would need this kind of referencing. If you write more about
what you want to accomplish, we can help easier.
Should this be a many-to-many connection?
You can reference only tables that are defined before the table from where you
are creating the reference.
regards
mmlado
On Monday 09 November 2009 14:16:56 David wrote:
> Ok so I removed the db. from all the references. I am still getting a
> similar error about tables not existing.
>
> ======
> Traceback (most recent call last):
> File "/var/www/web2py/gluon/restricted.py", line 184, in restricted
> exec ccode in environment
> File "/var/www/web2py/applications/inventory/models/db.py", line 74,
> in <module>
> Field('review', 'reference review'))
> File "/var/www/web2py/gluon/sql.py", line 1195, in define_table
> t._create_references()
> File "/var/www/web2py/gluon/sql.py", line 1454, in
> _create_references
> raise SyntaxError, 'Table: table \'%s\'does not exist' %
> referenced
> SyntaxError: Table: table 'product_description'does not exist
>
> =====
>
> On Nov 9, 6:55 am, Mladen Milankovic <mml...@gmail.com> wrote:
> > Hi.
> >
> > When using reference you don't need the db. part. Only the name of the
> > table.
> >
> > Like:
> > Field('description', 'reference product_description'),
> >
> > It uses the same database as the table you are just creating.
> >
> > regards
> > mmlado
> >
> > On Monday 09 November 2009 13:51:05 David wrote:
> > > So I have the following code and it's not generating tables but
> > > perhaps my thinking isn't quite clear on this. I can't link two
> > > tables unless one exists previously and that table cannot reference
> > > any other table that is not created unless a reference is used....
> > > explain why this gives me "Tables do not exist" errors no matter which
> > > order I use...
> > >
> > > db.define_table('product',
> > > Field('date_added', 'datetime'),
> > > Field('date_available', 'datetime'),
> > > Field('name', length=55),
> > > Field('quantity', 'integer'),
> > > Field('price', length=10),
> > > Field('description', 'reference db.product_description'),
> > > Field('image', 'reference db.image'),
> > > Field('review', 'reference db.review'))
> > >
> > > db.define_table('image',
> > > Field('product_id', 'reference db.product'),
> > > Field('name'),
> > > Field('file', 'upload'))
> > >
> > > db.define_table('product_description',
> > > Field('prduct_id', 'reference db.product'),
> > > Field('description', 'text'))
> > >
> > > db.define_table('review',
> > > Field('product_id', 'reference db.product'),
> > > Field('rating'),
> > > Field('review', 'text'))
>
> >
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