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dh54220
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January 20, 2023
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node property handled in js?

  • January 20, 2023
  • 4 replies
  • 1356 views

Hi All,

We can remove or add node properties using js ?

if it possible can explain how to do that.

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Best answer by Manu_Mathew_

@dh54220 you can actually use JCR/Sling APIs in sling models to manipulations to the node properties.

Resource resource = request.getResourceResolver().getResource("nodePath"); Session session = resource.adaptTo(Session.class); //Create a node that represents the root node Node root = session.getRootNode(); // Store content Node adobe = root.addNode("adobe"); Node aem = adobe.addNode("aem"); day.setProperty("message", "This is sample message"); session.save(); session.logout();

Sling API:

 

To create node-

Resource myResource = resourceResolver.getResource("/myresource"); Map<String,Object> properties = new HashMap<String,Object>(); properties.put("jcr:primaryType", "nt:unstructured"); properties.put("sling:resourceType", "myapp/components/mytype"); Resource dummy = resourceResolver.create(myResource, "dummy", properties); resourceResolver.commit();

 

To remove node-

Resource myResource = resourceResolver.getResource("/myresource"); resourceResolver.delete(myResource); resourceResolver.commit();

 

To remove properties-

Resource myResource = resourceResolver.getResource("/myresource"); ModifiableValueMap properties = myResource.adaptTo(ModifiableValueMap.class); properties.remove("title"); resourceResolver.commit();

 

4 replies

Peter_Puzanovs
Community Advisor
Peter_PuzanovsCommunity Advisor
Community Advisor
January 20, 2023

Dear Vasu,

 

There are many ways to achieve your ask,

 

May we find out more about your use case?


Regards,

Peter

    ArpitVarshney
    Community Advisor
    ArpitVarshneyCommunity Advisor
    Community Advisor
    January 20, 2023

    Hi @dh54220 

     

    CRUD operation in node can happen via sling(treat as resource)or node api which can only be done via server side.

     

    You can use server side approach with above api.

     

    Regards,

    Arpit Varshney

      Manu_Mathew_
      Community Advisor
      Manu_Mathew_Community AdvisorAccepted solution
      Community Advisor
      January 20, 2023

      @dh54220 you can actually use JCR/Sling APIs in sling models to manipulations to the node properties.

      Resource resource = request.getResourceResolver().getResource("nodePath"); Session session = resource.adaptTo(Session.class); //Create a node that represents the root node Node root = session.getRootNode(); // Store content Node adobe = root.addNode("adobe"); Node aem = adobe.addNode("aem"); day.setProperty("message", "This is sample message"); session.save(); session.logout();

      Sling API:

       

      To create node-

      Resource myResource = resourceResolver.getResource("/myresource"); Map<String,Object> properties = new HashMap<String,Object>(); properties.put("jcr:primaryType", "nt:unstructured"); properties.put("sling:resourceType", "myapp/components/mytype"); Resource dummy = resourceResolver.create(myResource, "dummy", properties); resourceResolver.commit();

       

      To remove node-

      Resource myResource = resourceResolver.getResource("/myresource"); resourceResolver.delete(myResource); resourceResolver.commit();

       

      To remove properties-

      Resource myResource = resourceResolver.getResource("/myresource"); ModifiableValueMap properties = myResource.adaptTo(ModifiableValueMap.class); properties.remove("title"); resourceResolver.commit();

       

        Kiran_Vedantam
        Community Advisor
        Kiran_VedantamCommunity Advisor
        Community Advisor
        January 20, 2023

        Hi @dh54220 

         

        Quick question: Why do you need to delete a node via JS? It is always recommended to do it using JAVA (BE Code) where you can manage the session / resourceresolver in an effective manner to avoid memory leaks.

         

        Here are some examples:

        https://www.tabnine.com/code/java/methods/javax.jcr.Node/remove

         

        Hope this helps!


        Thanks,
        Kiran Vedantam.

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