Get a data-sly-list element as a jsonarray | Community
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rampai
Community Advisor
rampaiCommunity Advisor
Community Advisor
October 11, 2019
Solved

Get a data-sly-list element as a jsonarray

  • October 11, 2019
  • 5 replies
  • 5287 views

How can we pass a list from HTL to a sling model?

I need a nested list to be converted into JsonArray format. 

<div data-sly-list="${values}">
     <h1>${item.title}</h1>
     <p>${item.description}</p>
</div>

Now I want the same thing as a json string from ${values}:

[{"title":"test1", "description":"desc1"},{"title":"test2", "description":"desc2"}]

Any inputs would be helpful.

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    Best answer by Ankur_Khare

    In your java class you can convert the data to json using GSON and send back to frontend -

    Gson().toJson("data");

    5 replies

    ArpitVarshney
    Community Advisor
    ArpitVarshneyCommunity Advisor
    Community Advisor
    October 11, 2019

    Hi,

    Please refer below to pass data from sightly to sling model:

    https://sling.apache.org/documentation/bundles/scripting/scripting-htl.html#passing-parameters

    After passing the data to sling model you can write your custom code in Sling model to convert it to json.

    Regards,

    Arpit Varshney

      Ankur_Khare
      Community Advisor
      Ankur_KhareCommunity AdvisorAccepted solution
      Community Advisor
      October 11, 2019

      In your java class you can convert the data to json using GSON and send back to frontend -

      Gson().toJson("data");

        arunpatidar
        Community Advisor
        arunpatidarCommunity Advisor
        Community Advisor
        October 11, 2019

        Create a sling model and adapt usiing SlingHttpServletRequest.class

        Example:

        <!-- info.html -->

        <div data-sly-use.info="${'TestModel' @ text='Some text'}">

            <p>${info.reversed}</p>

        </div>

        Sling model

        import org.apache.sling.api.SlingHttpServletRequest; 

        import org.apache.sling.models.annotations.Model; 

        import org.apache.sling.models.annotations.Optional; 

        import org.apache.sling.models.annotations.injectorspecific.RequestAttribute; 

         

         

        @Model(adaptables = SlingHttpServletRequest.class) 

        public class TestModel { 

        @RequestAttribute 

        @Optional 

        private String text; 

        @PostConstruct 

            public void init() { 

                //we can read the values directly here. 

            } 

        } 

        Arun Patidar
          rampai
          Community Advisor
          rampaiCommunity AdvisorAuthor
          Community Advisor
          October 13, 2019

          Thanks. This is precisely what I did in the end.

            Ankur_Khare
            Community Advisor
            Ankur_KhareCommunity Advisor
            Community Advisor
            October 23, 2019

            Could you pls mark it as correct so that it will help others as well..

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