Client side validation in xhtml template and clearErrorMessages not working in
firefox with hidden fields
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Key: WW-2058
URL: https://issues.apache.org/struts/browse/WW-2058
Project: Struts 2
Issue Type: Bug
Components: Views
Affects Versions: 2.0.9, 2.0.8
Environment: Firefox
Reporter: Max Pimm
Priority: Minor
The method clearErrorMessages in the xhtml client side validation template
(template/xhtml/validation.js) fails in firefox. This results in the error
messages being duplicated each time the form is submitted.
The problem arises from the first three lines of code in the function:
var table = form.childNodes[1];
if( typeof table == "undefined" ) {
table = form.childNodes[0];
}
This presumes that the first (or second) node of the form element is the field
table. However in firefox hidden fields within a form are moved in the DOM to
the top of its children. Thus wherever you put the hidden elements in the form
they appear in the DOM at the top. The same problem does not occur in internet
explorer or if no hidden fields are present. I have not tried other browsers.
I have replaced these three lines with the patch:
// get field table
var table;
for (var i = 0; i < form.childNodes.length; i++){
if (form.childNodes[i].tagName != null &&
form.childNodes[i].tagName.toLowerCase() == "table"){
table = form.childNodes[i];
break;
}
}
if (table == null){
return;
}
This solves the problem.
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