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https://issues.apache.org/jira/browse/ISIS-2419?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andi Huber updated ISIS-2419:
-----------------------------
Component/s: (was: Isis Core)
Isis Viewer Wicket
> Validate prefix-method on Action has boilerplate text in error message
> ----------------------------------------------------------------------
>
> Key: ISIS-2419
> URL: https://issues.apache.org/jira/browse/ISIS-2419
> Project: Isis
> Issue Type: Improvement
> Components: Isis Viewer Wicket
> Affects Versions: 2.0.0-M3
> Reporter: Simon Titheridge
> Assignee: Andi Huber
> Priority: Minor
> Labels: newbie
> Fix For: 2.0.0-M4
>
> Attachments: image-2020-08-05-22-26-25-207.png,
> image-2020-08-05-22-29-10-621.png
>
>
> If I have an action "update" that is validated in it's entirety by a
> validation method "validateUpdate" then the error message in the wicket
> viewer shows unwanted boiler plate wording ("_[violation of some declarative
> constraint]:_") together with the desired error message.
> *Screenshot of unwanted text:*
> !image-2020-08-05-22-26-25-207.png|width=516,height=332!
> *Code that produces the message*
> {code:java}
> @Action(semantics = SemanticsOf.NON_IDEMPOTENT)
> public Task update(
> TaskStatus status,
> @Parameter(optionality = Optionality.OPTIONAL) String
> comment) {
>
> this.status = status;
> if (comment != null) {
> this.comments =
> "".concat(this.comments).concat(comment).concat("\n");
> }
> return repositoryService.persist(this);
> }
>
> public String validateUpdate(TaskStatus status, String comment) {
> if (this.status != status) {
> if (this.status == TaskStatus.Complete || this.status
> == TaskStatus.Cancelled) {
> return "Can't change status of a task that is
> Complete or Cancelled";
> }
> }
> return null;
> }
> {code}
> This problem does not manifest if I do validation on only one of the action
> parameters, as follows:
> *Screenshot:*
> *!image-2020-08-05-22-29-10-621.png|width=627,height=358!*
> *Code of validation message:*
>
> {code:java}
> public String validate0Update(TaskStatus status) {
> if (this.status != status) {
> if (this.status == TaskStatus.Complete || this.status
> == TaskStatus.Cancelled) {
> return "Can't change status of a task that is
> Complete or Cancelled";
> }
> }
> return null;
> }
> {code}
>
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