I think I've found the solution - the key is to make sure you specify a
position when you add the child exception to the parent one. This may only
be a deform_bootstrap issue - I haven't done enough digging to be sure.
def main_schema_validator(form, value):
subnode = child_named('sub_node', form)
try:
sub_schema_validator(subnode, value['sub_node'])
except colander.Invalid, e:
exc = colander.Invalid(form)
# NB: You NEED the 0 argument here, or the error won't display
# May be a deform_bootstrap problem
exc.add(e, 0)
raise exc
Hope that helps someone.
On Tuesday, July 10, 2012 6:27:28 PM UTC+2, sirdavidoff wrote:
>
> Basically I'm struggling to add a multi-field validation error generated
> by on a child schema to the parent schema. Here goes...
>
> I have a schema which includes a subschema:
>
> class SubSchema(Colander.Schema):
> url = colander.SchemaNode(...)
> description = colander.SchemaNode(...)
>
> class MainSchema(Colander.Schema):
> sub_node = SubSchema()
> ...
>
> I also have a validation function that checks that at least one of 'url'
> and 'description' is non-null:
>
> def sub_schema_validator(form, value):
> if not value['url'] and not value['description']:
> exc = colander.Invalid(form, 'Must enter either a website or a
> description')
> exc['url'] = ''
> exc['description'] = 'Please enter either a website or a description'
> raise exc
>
> This function works fine if I just use the sub-schema (no main schema).
> For the main schema, I've tried to write a function that calls the
> sub-schema validation function:
>
> def main_schema_validator(form, value):
> subnode = child_named('sub_node', form)
> sub_schema_validator(subnode, value['sub_node'])
>
> The error gets raised, but the 'url' and 'description' fields don't get
> highlighted like they should be. I'm not sure how I'm supposed to add the
> exception generated by the sub-node to one for the main node.
>
> Any ideas?
>
>
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