SlingModel @ChildResource is not working

[vijays80591732]

Hi All,

I have a node called "entries" under the page. The "entries" node having some child nodes like entry1, entry2, entry3. The "entries" and child nodes "entry1" have been creating via code and I don't have any component for this. Now, I'm trying to access the "entries" node in a sling model but it's not working. Below is the screenshot of the node structure,

Below is the code,

    @Model(adaptables = Resource.class, defaultInjectionStrategy = DefaultInjectionStrategy.OPTIONAL)
    public class HistoryModel {

        private static final Logger LOGGER = LoggerFactory.getLogger(HistoryModel.class);

        @Self
        private Resource currentResource;

        /*@ChildResource(name = "entries")
        private List<HistoryBean> entries;
*/
        @ChildResource(name = "entries")
        private Resource entries;

        @ChildResource(name="entries",injectionStrategy= InjectionStrategy.OPTIONAL,via = "resource")
        Resource child;

        public Resource getEntries() {
            return entries;
        }

        public Resource getChild() {
            return child;
        }

        @PostConstruct
        protected void postConstruct() {
            //Nothing inside
            LOGGER.debug("HistoryModel post construct Method().. calling..");
            LOGGER.debug("HistoryModel entries.. calling..{}", entries);
            LOGGER.debug("HistoryModel child.. calling..{}", child);

        }

Tried with @childResource. In the log, I'm getting null. anything wrong in the code? Can anyone help?

@arunpatidar26 @smacdonald2008 @arunpatidar26 @Ratna_Kumar @kautuk_sahni @wimsymons @cqsapientu69896 @vanegi @Veena_Vikram @varuns7990 @Theo_Pendle

Thanks,

Vijay

[ChitraMadan · Accepted solution]

Hi @vijays80591732 ,

If this is not a component and you want to access it in Sling Model, then you can make use of a java class to read its child values and return in Sling Model in this way:

@Getter

@Setter

@Model(adaptables = Resource.class, defaultInjectionStrategy = DefaultInjectionStrategy.OPTIONAL)

public class HistoryModel {

@Inject

private List<WorkflowItem> workflowItems;

@Self

private transient Resource resource;

@PostConstruct

private void init() {

workflowItems = SomeUtilClass.getWorkflowItems(resource, "path to entries node");

}

}

And your Util Class method can have this code:

List<WorkflowItem>workflowItemsList = Collections.emptyList();

Resource workflowResource = resource.getResourceResolver().getResource("path to entries");

if (workflowResource != null && workflowResource.hasChildren()) {

workflowItemsList =

Lists.newArrayList(workflowResource.getChildren()).stream()

.map(child -> child.adaptTo(WorkflowItem.class))

.collect(Collectors.toList());

return workflowItemsList;

}

WorkflowItem class can be another Model class with Description and Message and other attributes as per your need.

[Suraj_Kamdi]

@vijays80591732 

try with 

@ChildResource(injectionStrategy = InjectionStrategy.OPTIONAL)

Collection<Resource> entries

Hope this will help

[vijays80591732]

Thanks Suraj for your inputs. I have created a component and calling that from template.html. Now, getting the current resource and fetching the child nodes.