from:
http://www.web2py.com/books/default/chapter/29/07/forms-and-validators#Database-validators
Validators with dependencies
Usually validators are set once for all in models.
Occasionally, you need to validate a field and the validator depends on the
value of another field. This can be done in various ways. It can be done in
the model or in the controller.
There is an example validation done in controller but there is no example
validation done in model
My table:
db.define_table('config',
Field('config_name', 'string', length=255, required=True, unique=True),
Field('convert_option', 'string', length=255,
requires=IS_IN_SET(CONVERSION, zero=None)),
Field('config_value', 'string', length=255, required=True),
Field('default_value', 'string', length=255, required=True))
I want to validate if config_value is greater than default value (for
example), but i don't want to do it in SQLFORM or FORM.
or is it a bad idea to put validation that depend on other fields in
"model" rather than form?
Thank you
Hadi
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