Opening edit-screen from standard menu-action vs. (own) button-action

Support
#1

Hello altogether!
I built a screen to edit data. There’s no browser screen before, so I tell the data loader to use a certain entity id via InstanceLoader/onBeforeShow.

Works fine, when I open the screen in the menu.xml:
<item screen=“bookstore_EHC_USERX_TEILNEHMER.edit”…

But,
when I open then same screen from another screen, I get the error described below.

button-click:

leads to:

java.lang.IllegalArgumentException: entity is null
at io.jmix.core.common.util.Preconditions.checkNotNullArgument(Preconditions.java:101)
at io.jmix.core.EntityStates.isNew(EntityStates.java:71)
at io.jmix.ui.screen.StandardEditor.setupEntityToEdit(StandardEditor.java:213)
at io.jmix.ui.screen.StandardEditor.beforeShow(StandardEditor.java:155)
at io.jmix.core.common.event.EventHub.publish(EventHub.java:170)
at io.jmix.ui.screen.Screen.fireEvent(Screen.java:124)
at io.jmix.ui.screen.UiControllerUtils.fireEvent(UiControllerUtils.java:58)
at io.jmix.ui.sys.ScreensImpl.fireScreenBeforeShowEvent(ScreensImpl.java:1364)
at io.jmix.ui.sys.ScreensImpl.show(ScreensImpl.java:357)
at io.jmix.ui.screen.Screen.show(Screen.java:306)
at io.jmix.ui.component.impl.ScreenFacetImpl.show(ScreenFacetImpl.java:47)
at io.jmix.ui.component.impl.AbstractScreenFacet.lambda$subscribeOnButton$3(AbstractScreenFacet.java:233)
at io.jmix.core.common.event.EventHub.publish(EventHub.java:170)
at io.jmix.ui.component.impl.AbstractComponent.publish(AbstractComponent.java:85)
at io.jmix.ui.component.impl.ButtonImpl.buttonClicked(ButtonImpl.java:78)
at io.jmix.ui.widget.JmixButton.fireClick(JmixButton.java:77)
at com.vaadin.ui.Button$1.click(Button.java:57)
at jdk.internal.reflect.GeneratedMethodAccessor228.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:153)
at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:115)
at com.vaadin.server.communication.ServerRpcHandler.handleInvocation(ServerRpcHandler.java:442)
at com.vaadin.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:407)
at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:275)
at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:83)
at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:40)
at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1636)
at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:465)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:584)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:209)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at io.jmix.core.impl.logging.LogMdcFilter.doFilterInternal(LogMdcFilter.java:28)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:337)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:115)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:122)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:116)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:126)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:109)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:106)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:97)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:147)
at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:125)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:90)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:75)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:112)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:82)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:55)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.session.DisableEncodeUrlFilter.doFilterInternal(DisableEncodeUrlFilter.java:42)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:221)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:186)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:926)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1791)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:833)

What’s the difference between starting edit-screen vom menu item vs. button openscreen action?

Thanks in advance,

ciao,
HP

#2

Greetings,

This happens because validation starts before you setting entity to edit. As you can see in stacktrace, before you are loading the entity, StandardDetailView::setupEntityToEdit already invoked. You can check this in code and find your own solution, and check what is the priority of calls for entity load and entity validation.

Solution:

  • Load entity via loadDelegate (add loadter without query inside dataContainer) and subscribe/install
    LoadDelegate and load it.
  • Second variant is to change your extantion to StandardView and commit all data manually.

Regards, team Jmix

#3

Hello Dmitry!
Sorry for this late response, but I wanted to learn more, before bothering with stupid questions. But now, I’m still stuck.
How does loadDelegate for entity User work?

In the docs, I read, but yet I’m missing a working example for load Delegate.

Docs show:
"
@Autowired
private CustomerService customerService;

@Install(to = “customersDl”, target = Target.DATA_LOADER)
protected List customersDlLoadDelegate(LoadContext loadContext) {
LoadContext.Query query = loadContext.getQuery();
return customerService.loadCustomers(
query.getCondition(),
query.getSort(),
query.getFirstResult(),
query.getMaxResults()
);
}
"

But this does not explain, where “private CustomerService” comes from.
And the ComponentInspector gives me - for the User entity - the following:

"
@Install(to = “dataL”, target = Target.DATA_LOADER)
private User dataLLoadDelegate(final LoadContext loadContext) {
return null;
}
"

Which is not enough to adapt the missing “CustomerService”.

Thanks for your support in advance,

Best regards
HP

#4

Hello Dmitry!
Unfortunately I have no idea what to do.
I could not bring your suggested solutions to life.

What does the loader has to look like, when opening an edit screen for my own user data?

Imagine a user logs in and wants to change his own data e.g. name, email, etc.

A little bit like changing his password, but with a complete edit screen.

Thanks for your ideas in advance,

best regards,
HP