[
https://issues.apache.org/jira/browse/ISIS-674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Dan Haywood updated ISIS-674:
-----------------------------
Description:
For example:
public void foo(
Charge charge,
BigDecimal amount,
String description) {
}
public String default2Foo(Charge charge, BigDecimal amount) {
return charge != null && amount != null? amount + " "
charge.getDescription() : null;
}
Here, the value of the 'description' parameter is defaulted from that of both
the preceding 'charge' and 'amount' parameters. Changing either should cause
the default value for the 'description' to be recomputed.
This is analogous to the way that choices are recomputed for
category/subcategory, see ActionParametersFormPanel:
@Override
public void onUpdate(AjaxRequestTarget target, ScalarModelProvider
provider) {
final ActionModel actionModel = getActionModel();
final ObjectAdapter[] pendingArguments =
actionModel.getArgumentsAsArray();
try {
final ObjectAction action =
actionModel.getActionMemento().getAction();
final int numParams = action.getParameterCount();
for (int i = 0; i < numParams; i++) {
final ScalarPanelAbstract paramPanel = paramPanels.get(i);
if(paramPanel != null) {
// this could throw a ConcurrencyException as we may
have to reload the
// object adapter of the action in order to compute the
choices
// (and that object adapter might have changed)
if(paramPanel.updateChoices(pendingArguments)) {
<<<<<< THIS LOOKS SIMILAR TO WHAT NEEDS TO BE
DONE...
target.add(paramPanel);
}
}
}
} catch(ConcurrencyException ex) {
was:
For example:
public void foo(
Charge charge,
BigDecimal amount,
String description) {
}
public String default2Foo(Charge charge, BigDecimal amount) {
return charge != null && amount != null? amount + " "
charge.getDescription() : null;
}
Here, the value of the 'description' parameter is defaulted from that of both
the preceding 'charge' and 'amount' parameters. Changing either should cause
the default value for the 'description' to be recomputed.
This is analogous to the way that choices are recomputed for
category/subcategory.
> Allow action parameters to be defaulted based on the (change of) value of
> other parameters.
> -------------------------------------------------------------------------------------------
>
> Key: ISIS-674
> URL: https://issues.apache.org/jira/browse/ISIS-674
> Project: Isis
> Issue Type: New Feature
> Components: Core, Viewer: Wicket
> Affects Versions: viewer-wicket-1.3.1, core-1.3.0
> Reporter: Dan Haywood
> Assignee: Dan Haywood
> Priority: Minor
> Fix For: viewer-wicket-1.5.0, core-1.5.0
>
>
> For example:
> public void foo(
> Charge charge,
> BigDecimal amount,
> String description) {
>
> }
> public String default2Foo(Charge charge, BigDecimal amount) {
> return charge != null && amount != null? amount + " "
> charge.getDescription() : null;
> }
> Here, the value of the 'description' parameter is defaulted from that of both
> the preceding 'charge' and 'amount' parameters. Changing either should cause
> the default value for the 'description' to be recomputed.
> This is analogous to the way that choices are recomputed for
> category/subcategory, see ActionParametersFormPanel:
> @Override
> public void onUpdate(AjaxRequestTarget target, ScalarModelProvider
> provider) {
> final ActionModel actionModel = getActionModel();
> final ObjectAdapter[] pendingArguments =
> actionModel.getArgumentsAsArray();
> try {
> final ObjectAction action =
> actionModel.getActionMemento().getAction();
> final int numParams = action.getParameterCount();
> for (int i = 0; i < numParams; i++) {
> final ScalarPanelAbstract paramPanel = paramPanels.get(i);
> if(paramPanel != null) {
> // this could throw a ConcurrencyException as we may
> have to reload the
> // object adapter of the action in order to compute
> the choices
> // (and that object adapter might have changed)
> if(paramPanel.updateChoices(pendingArguments)) {
> <<<<<< THIS LOOKS SIMILAR TO WHAT NEEDS TO BE
> DONE...
> target.add(paramPanel);
> }
> }
> }
> } catch(ConcurrencyException ex) {
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