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https://issues.apache.org/jira/browse/WW-2656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lukasz Lenart updated WW-2656:
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Fix Version/s: (was: 2.3.18)
2.5
> Support for Validation of Indexed Properties
> --------------------------------------------
>
> Key: WW-2656
> URL: https://issues.apache.org/jira/browse/WW-2656
> Project: Struts 2
> Issue Type: Improvement
> Components: Core Interceptors
> Affects Versions: 2.0.11
> Reporter: Bob Tiernay
> Fix For: 2.5
>
>
> Currently, there doesn't seem to be a method of validating an indexed
> property (ie. a collection) directly or indirecetly within an action.
> For instance, given an action OrderAction with a property order of type Order
> where order contains a collection trades of type Trade, the following is not
> possible:
> {code:java}
> @Validation
> public class OrderAction {
> private Order order = new Order();
> @Validations(requiredFields = {
> @RequiredFieldValidator(message = "", key = "errors.required",
> fieldName = "order.trades[].field1"),
> @RequiredFieldValidator(message = "", key = "errors.required",
> fieldName = "order.trades[].field2"),
> })
> public String execute() throws Exception {
> ....
> }
> {code}
> The closest thing to support for something like the above is using the
> VisitorFieldValidator validator. Although it has the following disadvantages:
> 1. It must be placed on the target object (invasive and not context sensitive)
> 2. It does not work with an indirect collection (as in the example above)
> Something like this should be possible (even struts1 validator supports
> indexedListProperty)
> On a related topic, it should be possible to do the following to display the
> error in the resulting view:
> {code:html}
> <s:fielderror><s:param>order.trades[2].field1</s:param></s:fielderror>
> {code}
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