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A
AD-Engineer
New Participant
May 31, 2021
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TagManager resolve not working

  • May 31, 2021
  • 1 reply
  • 1388 views

Hi,

 

I am trying to create a filter component - to filter based on tags. The idea is to pass tags from a specific path to front, so user can choose from dropdown.

I am having an issue, with Tag Manager methods, like resolve.

Code below:

@9944223 public String getAllTags(){ Tag tag = null; TagManager tagManager = null; tagManager = resourceResolver.adaptTo(TagManager.class); tag = tagManager.resolveByTitle("Region"); String name = tagManager.getNamespaces()[3].getTitle(); return tag.getPath(); }

 

This is just a test method. I know that the return type should be List<Tag>, but for now I just want to get a specific tag path, to understand hot this works. But it is returning null. I know most of the times this issue is related to user permissions, but I already updated the permission to read for content/cq:tags. Thanks!

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    Best answer by Asutosh_Jena_

    Hi @ad-engineer 

     

    Please follow the below approach:

     

    Create a VO/POJO class with all the desired fields. I added only 2 for DEMO.

    public class TagVO {
        private String tagName;
        private String tagTitle;

        public String getTagName() {
            return tagName;
        }

        public void setTagName(String tagName) {
            this.tagName = tagName;
        }

        public String getTagTitle() {
            return tagTitle;
        }

        public void setTagTitle(String tagTitle) {
            this.tagTitle = tagTitle;
        }
    }

     

     Create a Model class and call it in component:

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

        private static final Logger log = LoggerFactory.getLogger(TestModel.class);

        @SlingObject
        private ResourceResolver resourceResolver;

        private List<TagVO> tagList;

        @PostConstruct
        protected void init() {
            log.info("***** :: Start :: *****");
            tagList = new ArrayList<>();
            String tagPath = "/content/cq:tags/brands/whatever"; // Here you will pass the parent path to all tags. Ensure anonumous user access is there for this path.
            TagManager tagManager = resourceResolver.adaptTo(TagManager.class);
            if (tagManager != null) {
                Tag tagFromPath = tagManager.resolve(tagPath);
                Iterator<Tag> tagIterator = tagFromPath.listChildren();
                tagIterator.forEachRemaining(tag -> {
                    TagVO tagVO = new TagVO();
                    tagVO.setTagName(tag.getName());
                    tagVO.setTagTitle(tag.getTitle());
                    tagList.add(tagVO);
                });
            }
            log.info("***** :: End :: *****");
        }

        public List<TagVO> getTagList() {
            return tagList;
        }
    }

     

    HTL:

    <sly data-sly-use.menuobj="com.aem.core.models.TestModel">
        <sly data-sly-list.listObj="${menuobj.tagList}">
            <li value="${listObj.tagName}">${listObj.tagTitle}</li>
        </sly>
    </sly>

    HTL script can be modified to show as dropdown. I just added as simple list item.

     

    Hope this helps!

    Thanks 

    1 reply

    Asutosh_Jena_
    Asutosh_Jena_Accepted solution
    New Participant
    June 1, 2021

    Hi @ad-engineer 

     

    Please follow the below approach:

     

    Create a VO/POJO class with all the desired fields. I added only 2 for DEMO.

    public class TagVO {
        private String tagName;
        private String tagTitle;

        public String getTagName() {
            return tagName;
        }

        public void setTagName(String tagName) {
            this.tagName = tagName;
        }

        public String getTagTitle() {
            return tagTitle;
        }

        public void setTagTitle(String tagTitle) {
            this.tagTitle = tagTitle;
        }
    }

     

     Create a Model class and call it in component:

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

        private static final Logger log = LoggerFactory.getLogger(TestModel.class);

        @SlingObject
        private ResourceResolver resourceResolver;

        private List<TagVO> tagList;

        @PostConstruct
        protected void init() {
            log.info("***** :: Start :: *****");
            tagList = new ArrayList<>();
            String tagPath = "/content/cq:tags/brands/whatever"; // Here you will pass the parent path to all tags. Ensure anonumous user access is there for this path.
            TagManager tagManager = resourceResolver.adaptTo(TagManager.class);
            if (tagManager != null) {
                Tag tagFromPath = tagManager.resolve(tagPath);
                Iterator<Tag> tagIterator = tagFromPath.listChildren();
                tagIterator.forEachRemaining(tag -> {
                    TagVO tagVO = new TagVO();
                    tagVO.setTagName(tag.getName());
                    tagVO.setTagTitle(tag.getTitle());
                    tagList.add(tagVO);
                });
            }
            log.info("***** :: End :: *****");
        }

        public List<TagVO> getTagList() {
            return tagList;
        }
    }

     

    HTL:

    <sly data-sly-use.menuobj="com.aem.core.models.TestModel">
        <sly data-sly-list.listObj="${menuobj.tagList}">
            <li value="${listObj.tagName}">${listObj.tagTitle}</li>
        </sly>
    </sly>

    HTL script can be modified to show as dropdown. I just added as simple list item.

     

    Hope this helps!

    Thanks 

      A
      AD-EngineerAuthor
      New Participant
      June 1, 2021
      @asutosh_jena_ this worked great! Thanks a lot!
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