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From "Martin Marinschek (JIRA)" <>
Subject [jira] Commented: (MYFACES-1467) Validation doesn't run for required fields if submitted value is null
Date Mon, 16 Oct 2006 08:12:36 GMT
    [ ] 
Martin Marinschek commented on MYFACES-1467:

Yes, I agree that this might be better off in an extended framework. But how to build this
extended framework if no validator ever gets called when the value is null? I don't have a
place to hook in the framework then (at least to existing components extending from the standard
components - Trinidad has it easier here, with a completely different component hierarchy)...



> Validation doesn't run for required fields if submitted value is null
> ---------------------------------------------------------------------
>                 Key: MYFACES-1467
>                 URL:
>             Project: MyFaces Core
>          Issue Type: Bug
>          Components: General
>    Affects Versions: 1.2.0-SNAPSHOT, 1.1.5-SNAPSHOT
>            Reporter: David Chandler
>         Assigned To: Matthias We├čendorf
>         Attachments: patch.txt
> A component with a required value will not fail validation as expected if the submitted
value is null. This issue is not seen normally because browsers send the value for an empty
text field as an empty string. That is, the POST data for an empty field1 will contain the
field name but no value, like field1=&field2=something. However, if you use a man-in-the-middle
proxy such as Paros to remove "fieldname=" from the POST data, the submitted value will be
null. UIInput.validate() skips validation for null submitted values, but since requiredness
is also part of validation, the requiredness check gets skipped, too.

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