AJAX validation does not work when xhtml forms contain hidden form fields
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Key: WW-2659
URL: https://issues.apache.org/struts/browse/WW-2659
Project: Struts 2
Issue Type: Bug
Components: Plugin - Dojo Tags
Affects Versions: 2.1.2
Environment: struts2-core-2.1.2 struts2-dojo-plugin-2.1.2.jar
xwork-2.1.1 Firefox-2.0.0.14 Ubuntu-Gutsy
Reporter: Owen Berry
Problem: validation errors returned from the server can not be inserted into
the page content.
StrutsUtils.showValidationErrors in utils.js tries to detect the theme that is
being used for the form by checking to see if the first child node of the form
is a table node (line 53). If you have a hidden form field, the first child
node is actually the hidden field, so the code thinks you are using the
css_xhtml theme and fails to report validation errors within the page correctly
- instead it pops up a Javascript alert indicating: "Could not validate:
form_user_firstName".
JSP Code:
<s:form method="post" namespace="/nodecorate" action="mysettings_update"
theme="xhtml" id="form">
<s:textfield key="user.firstName" />
<s:textfield key="user.lastName" />
<s:textfield key="user.emailAddress" />
<s:hidden name="user.version" />
<sx:submit validate="true" ajaxAfterValidation="true" targets="response"
showLoadingText="false" />
</s:form>
A workaround is to make the hidden field part of the table:
<tr style="display:none"><td colspan="2"><s:hidden name="user.version"
/></td></tr>
In addition to the above, it would also be good if addErrorCSS() in
css_xhtml/validation.js could actually report the error if it cannot figure out
the layout of the page. See line 83-45.
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