Sometimes, when using form-based validation it is not always possible or
desired to re-display the form in case of validation errors (for example
when you have a search form which displays the results in another
frame), but you still want to display the validation error messages in a
user friendly way, i.e. matching each error message to a field display
label.
I came up with this little nugget as a solution:
@expose("mypkg.templates.results")
@validate(form=some_form)
def showform(self, field1, field2, fieldn, tg_errors=None):
if tg_errors:
errors = []
for k, v in tg_errors.items():
try:
label = some_form._field_for(k).label
errors.append((label, v))
except:
errors.append((k, v))
return dict(results=None, errors=errors)
else:
...
This seems a bit cumbersome and also uses a private method of the
widgets.FormFieldContainer class. Is there a better solution for this?
Should the validate decorator take care of this by storing the field
labels somewhere? Suggestions welcome.
Chris
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