[orm-devel] orm/dbclass.py typo and a question on one2many deletions

[Eric Walstad]

At around line 228 in orm/dbclass.py:

     def invalidate(self, name):
         """
         Reset the attribite NAME so it will be read from the db next
         time it's accessed. Only works for Relationships.
         """
         if self._data.has_key(name) and \
                isinstance(self.columns[name], relationships.relationship):
             del self._data[name]
             seld._data[name] = self.columns[name].column()
---------------^
should be   self._data[name] = self.columns[name].column()

Also, I'm having some trouble figuring out how to deal with a one2many 
relationship.  I've got:
invoices (one)
     invoice_line_items (many)

and I'm trying to delete an invoice_line_item from both the database and 
the invoice dbclass object.  The invoice_line_item is getting deleted 
from the db, as expected, but not from the invoice.invoice_line_item list:

 >>> for li in invoice.invoice_line_items:
...     print li.oid()
...
29761419
29928975
29928976
 >>> invoice.invoice_line_items[0].oid()
29761419
 >>> invoice.invoice_line_items[0].delete()
============================================================
DELETE FROM invoice_line_items WHERE oid=29761419
============================================================
 >>> ds.commit()
 >>> for li in invoice.invoice_line_items:
...     print li.oid()
...
29761419
29928975
29928976
 >>>
I'd like the second loop to result in:
29928975
29928976
so that the .delete()ed invoice_line_item is also deleted from the 
invoice list.

What is the standard procedure for doing such a thing?

Thanks!  I hope you all had a pleasant holiday season.

Best,

Eric.

PS, here's my dbclass Table definitions:
class invoice_line_items(dbclass):
     columns = { "id"           :integer(),
                 "quantity"     :varchar(),
                 "description"  :varchar(),
                 "unit_price"   :varchar(),
                 "item_date"    :timestamp(),
                 "invoices_id"  :integer()}


class invoices(dbclass):
     columns = { "id"           :integer(),
                 "invoice_date" :timestamp(),
                 "date_paid"    :timestamp(),
                 "void"         :boolean(),
                 "tax_rate"     :varchar(),
                 "project_id"   :integer(),
                 "remarks"      :varchar(),
                 "payment_memo" :text(),
                 "invoice_line_items":one2many(invoice_line_items, 
"invoices_id")}