I have been looking for this feature for a while now. Something similar to the Readonly role.
In my application I have a lot of entities that cannot be modified after they reached a certain “status”.
In CUBA 6 I just disabled the the fieldgroups, and all the detail(nested) table actions, which is a lot of work, because you also have disable the detail table edit screens.
Here is one simple universal solution for CUBA7:
Screen XML with standard window actions and one additional button: closeNoCommitBtn
...
<hbox id="editActions" spacing="true">
<button id="windowCommitAndCloseBtn" action="windowCommitAndClose"/>
<button id="windowCommitBtn" action="windowCommit"/>
<button id="windowCloseBtn" action="windowClose"/>
<button id="closeNoCommitBtn" caption="Close" icon="font-icon:CLOSE" invoke="onCloseNoCommitBtnClick"/>
</hbox>
...
Controller
...
@Inject
private Button windowCommitBtn, windowCloseBtn, windowCommitAndCloseBtn, closeNoCommitBtn;
@Subscribe
private void onBeforeShow(BeforeShowEvent event) {
this.disableEdit(this.isUpdateAllowed());
}
/**
* Close the window without changes
*/
@Subscribe
public void onCloseNoCommitBtnClick() {
closeWithDiscard();
}
/**
* Override preventUnsavedChanges. This prevents the framweork from asking to save changes.
* This is necessary because, if the user uses the close X of the tab, the framework asks to save changes.
* @param event
*/
@Override
protected void preventUnsavedChanges(BeforeCloseEvent event) {
if (this.isUpdateAllowed()) { // Some function to check entity fields if update is allowed
super.preventUnsavedChanges(event); // Call super method to work like normal
}
// else do nothing
}
/**
* Enable disable edit based on the status
*/
private void disableEdit(boolean updateAllowed) {
if (!updateAllowed) {
// Hide the standard window buttons
windowCommitAndCloseBtn.setVisible(false);
windowCommitBtn.setVisible(false);
windowCloseBtn.setVisible(false);
// Disable the actions to prevent user from using shortcut CTRL+ENTER to save.
this.getWindow().getAction(WINDOW_COMMIT_AND_CLOSE).setEnabled(false);
this.getWindow().getAction(WINDOW_COMMIT).setEnabled(false);
}
// Disable/enable close without commit button
closeNoCommitBtn.setVisible(!updateAllowed); // Only show this button when update is not allowed
}
I was looking into the code of preventUnsavedChanges and it calls a function isCheckForUnsavedChanges(). It would be nice if this was a setting you could turn on/off in the editor screen.
It would be even nicer if ReadOnly was a standard feature you could turn on for Editor Screens.
The reason I can’t do this wit security constraints, is there are still some actions you can do with the entity that are invoked through a button that does make ‘controlled’ changes to the entity.
Anyone have any other ideas?
Renato