Am 27.09.2007 um 10:37 schrieb Michael Howitz:
After thinking it over we decided to implement the first approach
(change z3c.form.validator.Data to read the value of a field
missing in he form on the object).
We put our changes into the branch gocept-invariants.
The reasons to change our decision where the following:
- the second approach (using save-points) requires save-point
support on the back-end and breaks without this support
- using save-points would require to change the structure of
z3c.form: till now the complete validation is done by
z3c.form.field.FieldWidgets, using save-points validation gets
split up into validation of field contents in FieldWidgets and
validation of the invariants.
The validation of the invariants has to be implemented at least
twice: in AddForm and EditForm because saving form values is done
completely different in these classes. So someone creating a direct
subclass of z3c.form.form.Form has to do things again or we need
additional changes in the structure.
As no-one had any further thoughts, I'll merge the branch into the
trunk within the next few days.
gocept gmbh & co. kg · forsterstrasse 29 · 06112 halle/saale
www.gocept.com · fon: +49 345 12298898 · fax: +49 345 12298891
Zope3-dev mailing list