FormLinkRenderer throws NPE with DirectlLinks
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Key: TAPESTRY-829
URL: http://issues.apache.org/jira/browse/TAPESTRY-829
Project: Tapestry
Type: Bug
Components: Contrib
Versions: 4.0
Environment: tapestry 4.0 rc 3
Reporter: Ido M. Tamir
>From DirectLink it gets the following prameterNames: component container page
>service session sp
but link.getParameterValues("container") returns null;
my workaround is to wrap the loop in a test, then it works again.
if( values != null ){ }
In addition to this deprecated methods are used.
private String generateFormFunction(String formName, ILink link, String
anchor)
{
String[] parameterNames = link.getParameterNames();
StringBuffer buf = new StringBuffer();
buf.append("function prepare" + formName + "() {\n");
buf.append(" var html = \"\";\n");
buf.append(" html += \"<div style='position:
absolute'>\";\n");
String url = link.getURL(anchor, false);
buf.append(" html += \"<form name='" + formName + "'
method='post' action='" + url + "'>\";\n");
for (int i = 0; i < parameterNames.length; i++) {
String parameter = parameterNames[i];
String[] values = link.getParameterValues(parameter);
if( values != null ){
for (int j = 0; j < values.length; j++) {
String value = values[j];
buf.append(" html += \"<input
type='hidden' name='" + parameter + "' value='" + value + "'/>\";\n");
}
}
}
buf.append(" html += \"<\" + \"/form>\";\n");
buf.append(" html += \"<\" + \"/div>\";\n");
buf.append(" document.write(html);\n");
buf.append("}\n");
buf.append("prepare" + formName + "();\n\n");
return buf.toString();
}
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