Enumeration parameterNames = request.getParameterNames(); String parameter = mapping.getParameter();
while(parameterNames.hasMoreElements()) {
String paramName = parameterNames.nextElement();
if(paramName.indexOf(parameter) != -1) {
// find the index using substring
nestedDispatchMethod([struts gubbins],parameter, index);
}
}But given such forms are likely to have a lot of parameter names this would seem a bit heavy going.
On 27 Jun 2004, at 12:42, Mark Lowe wrote:
I've been looking through the struts source with a view to trying to find a way of handling nested dispatch actions.
Basically the problem is passing through an index or key to the getMethodName (MappedDispatchAction) or the getKeyMethodMap (LookupDispatchAction) and running a method based on that.
<html:form action="/foo.do">
<c:forEach var="course" items="${menuForm.courses}" varStatus="firstIndex">
<c:forEach var="nestedLevel" items="${course.dishes}" varStatus="nestedIndex">
<html:text property="${courses[firstIndex.index]. dishes[nestedIndex.index]" />
<html:submit property="method" indexed="true">
..
The situation is that i need to add an item to the the levelOne object. But when submitting there's no way of grabbing the index and thus knowing which of the levelOne objects to add a new rows of nested object to.
So far I've been using the unspecified method and searching the parameter names for a custom button name. So not really dispatching any thing. But If i wanted to go another level i would arrive at the same problem.
So far it looks like adding a nestedDispatchMethod or indexedDispatchMethod which also passes the index through.
Anyone else looked into this? It would seem a common enough problem.
Mark
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