[jira] [Created] (OFBIZ-7513) alt-target tag is not working as expected in Form Widget

[Pritam Kute (JIRA)]

Pritam Kute created OFBIZ-7513:
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             Summary: alt-target tag is not working as expected in Form Widget
                 Key: OFBIZ-7513
                 URL: https://issues.apache.org/jira/browse/OFBIZ-7513
             Project: OFBiz
          Issue Type: Bug
          Components: framework
    Affects Versions: Trunk
            Reporter: Pritam Kute
            Assignee: Pritam Kute


While working on the issue OFBIZ-7252, I found one problem in Form Widgets. 
When we use <alt-target> attribute in child form, the system should consider 
overridden <alt-target> in child form. This is default expected behaviour. But 
in this case, it is always considering the <alt-target> of the parent form.

For example:

<form name="ParentForm" .....>
  <alt-target use-when="xyz != abc" target="executeParentTarget"/> 
  ........
</form>

<form name="ChildForm" extends="ParentForm" extend-resource="........>
  <alt-target use-when="xyz != abc" target="executeChildTarget"/> 
  ........
</form>

In above example, expectation is 'executeChildTarget' target should get 
executed but actually 'executeParentTarget' is getting executed.

When we looked into framework level code of Form Widgets, we got the following 
code snippets:

ModelForm.java (Line: 380-388)

ArrayList<AltTarget> altTargets = new ArrayList<AltTarget>();
if (parentModel != null) {
    altTargets.addAll(parentModel.altTargets);
}
for (Element altTargetElement : UtilXml.childElementList(formElement, 
"alt-target")) {
    altTargets.add(new AltTarget(altTargetElement));
}
altTargets.trimToSize();
this.altTargets = Collections.unmodifiableList(altTargets);

Here we can see that all alt-targets present in parent form are added to the 
list first and then all alt-targets present in child form are added.

This causes a problem as method getTarget() of ModelForm.java (Line: 1352-1384) 
returns the first element in the list as alt-target.



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