tapestry-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Geoff Callender (JIRA)" <...@tapestry.apache.org>
Subject [jira] Commented: (TAPESTRY-2085) Empty textfield submits null value
Date Fri, 25 Jan 2008 10:12:35 GMT

    [ https://issues.apache.org/jira/browse/TAPESTRY-2085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12562421#action_12562421
] 

Geoff Callender commented on TAPESTRY-2085:
-------------------------------------------

>From the mailing list, Howard laid out some thoughts and a workaround:

The difference is that blank fields used to show up as the empty
string and are now showing up in the properties as null.

This could be addressed by a different NullFieldStrategy.  Perhaps
Tapestry should detect that the field is of type String and use
NullFieldStrategy that converts blank fields to the empty string.

In any case, a workaround is:

Object onSuccess() {

   if (_firstName == null) _firstName = "";
   if (_lastName == null) _lastName = "";

		_nextPage.onActivate(_firstName, _lastName);
		return _nextPage;
}




> Empty textfield submits null value
> ----------------------------------
>
>                 Key: TAPESTRY-2085
>                 URL: https://issues.apache.org/jira/browse/TAPESTRY-2085
>             Project: Tapestry
>          Issue Type: Bug
>    Affects Versions: 5.0.10
>            Reporter: Kevin Menard
>            Priority: Critical
>
> This was initially reported on the dev list by Geoff Callender.
> When submitting a form containing a textfield and nothing has been typed into that textfield,
the value will be submitted as null rather than the empty string.  In past version, the empty
string would be submitted.
> The net result is NPEs and coercion issues.  If the textfield is bound to a String and
that String is used without checking for null, an NPE will result when none used to.  If the
textfield is bound to any other type, such as an Integer, the Tapestry type coercer will fail
with an appropriate exception (e.g., NumberFormatException).

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@tapestry.apache.org
For additional commands, e-mail: dev-help@tapestry.apache.org


Mime
View raw message