treeDataGrid is not accepting DTOs?

Support
#1

I was just wondering, I am trying to mimic the tree from 1.5 and the only way is to use the treeDataGrid and make some changes (hide header, etc).
However I can’t make it load the data using a DTO.
Below is the DTO:

@JmixEntity(name = "sim_NavigationTreeNode")
public class TreeNode {
    private String name;
    private String type;
    private TreeNode parentTreeNode;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public TreeNode getParentTreeNode() {
        return parentTreeNode;
    }

    public void setParentTreeNode(TreeNode parentTreeNode) {
        this.parentTreeNode = parentTreeNode;
    }

}

Below is the view:

@Route(value = "browse", layout = MainView.class)
@ViewController("sim_BrowseView")
@ViewDescriptor("browse-view.xml")
public class BrowseView extends StandardView {
    private final Logger log = LoggerFactory.getLogger(BrowseView.class);

    @Autowired
    private DataManager dataManager;

    @Install(to = "treeNodesDl", target = Target.DATA_LOADER)
    protected List<TreeNode> treeNodesDlLoadDelegate(final LoadContext<TreeNode> loadContext) {
        TreeNode parentTreeNode = dataManager.create(TreeNode.class);
        parentTreeNode.setName("ACME Ltd.");

        TreeNode dateTreeNode = dataManager.create(TreeNode.class);
        dateTreeNode.setName("25-11-2023");
        dateTreeNode.setParentTreeNode(parentTreeNode);

        List<TreeNode> treeNodes = new ArrayList<>();
        treeNodes.add(parentTreeNode);
        treeNodes.add(dateTreeNode);

        return treeNodes;
    }

}

… and the xml:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<view xmlns="http://jmix.io/schema/flowui/view"
      title="msg://browseView.title">
    <data readOnly="true">
        <collection id="treeNodesDc"
                    class="nl.dm.simon.simonuserwebapp.entity.TreeNode" fetchPlan="_local">
            <loader id="treeNodesDl" cacheable="true"/>
        </collection>
    </data>
    <facets>
        <dataLoadCoordinator auto="true"/>
    </facets>
    <layout>
        <split orientation="HORIZONTAL" width="100%" height="100%" splitterPosition="25">
            <vbox height="100%" width="100%" expand="treeNodesDataGrid">
                <treeDataGrid id="treeNodesDataGrid"
                              hierarchyProperty="parentTreeNode"
                              width="100%" dataContainer="treeNodesDc"
                              minHeight="20em">
                    <actions/>
                    <columns>
                        <column property="name"/>
                    </columns>
                </treeDataGrid>

            </vbox>
            <vbox height="100%" width="100%">
                <split orientation="VERTICAL" width="100%" height="100%" splitterPosition="30" themeNames="small">
                    <hbox width="100%">
                        <label text="Label"/>
                        <textField placeholder="TextField"/>
                    </hbox>
                    <hbox spacing="true">
                        <button text="Button"/>
                        <button text="Button"/>
                    </hbox>
                </split>
            </vbox>
        </split>
    </layout>
</view>

The data is not loaded in the treeDataGrid, it displays as an empty container.

image

What am I doing wrong ?
Thanks.

#2

Hi,

It should work. I’ve just tried to use your code and it works fine for me:

image

Please try again, and if you still get problems then attach a sample project that demonstrate the issue here.

#3

Thank you. It was a stupid mistake related to roles and permissions. The entity was not specified in the right way in the role.