Hello!
I'm currently exploring how Tapestry 4 is validating fields and
tracking error messages.
Can someone please tell me if I'm right with the following assumptions:
- _every_ error is tracked in the ValidationDelegates fieldTrackings
- _only_ the content of form elements that extend ValidField or
implement TranslatedField is stored in FieldTrackings
Therefore only the following form elements will always be available
from the fieldTrackings, even if no error was recorded for them:
- DatePicker, TextArea, TextField (they implement TranslatedField)
- ValidField (as of Tapestry 4 deprecated)
This does lead me to the following question: why isn't the input of
other form elements (like i.e. Checkbox, PropertySelection) handled
the same way as TranslatedFields are?
Isn't this behavior contrary to the documentation of
IValidationDelegates method "recordFieldInputValue()". The JavaDocs say:
"Records the user's input for the current form component. Input
should be recorded even if
there isn't an explicit error, since later form-wide validations may
discover an error in the
field."
What I want to do is to show error messages from the form delegate
next to the form field (text field, check box, drop down, etc) where
the error is recorded. Is there a known way to do it?
Christian
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