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ShagunMalik
Level 3
June 23, 2021
Solved

Want to use Tags to create meta data

I need to write a Pojo class to get the value of cq:tags and then create meta data to get displayed as :

meta Name='tag_name' content='xyz'

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BimmiSoAccepted solution
Adobe Employee
June 23, 2021

Map<String, Object> param = new HashMap<>();
param.put(ResourceResolverFactory.SUBSERVICE, "yourservice");
try (ResourceResolver resolver = resourceResolverFactory.getServiceResourceResolver(param)) {

Resource res = resolver.getResource("resource path");

ValueMap pageProperties = resource.getValueMap();

String tags = properties.get("cq:tag", String[].class);

TagManager tagManager = resolver.adaptTo(TagManager.class);

List<String> tagValue = new ArrayList<>();

if (Objects.nonNull(tagManager)) {
for (String v : tags) {
Tag tag = tagManager.resolve(v);
if (Objects.nonNull(tag)) {
tagValue.add(tag.getTitle());
}
}

}

 

iterate over the tagValue in sightly and populate your meta data

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16 replies

Ritesh_Mittal
Adobe Champion and Community Advisor
Ritesh_MittalAdobe Champion and Community Advisor
Adobe Champion and Community Advisor
June 23, 2021

Hi @shagunmalik ,

 

You can use Sling APIs for this. Below are the steps-


1. Get Resource Resolver in your Class.

resolver = resolverFactory.getServiceResourceResolver(param);

2. Get the resource from Resource Resolver

Resource resource = resourceResolver.getResource("PATH-of-Content");

3. Adapt it to ValueMap

ValueMap properties = resource.getValueMap();

4. Get the specific property from value map-

String tag = properties.get("cq:tag", "Default value");

5. Return the value via Sling Model Getter method.

5. Grab the property in HTL to set in the meta attribute.

 

You can refer -

https://www.youtube.com/watch?v=CatRHs0rt4o

https://www.youtube.com/watch?v=LhvSNVagoZk

https://experienceleague.adobe.com/docs/experience-manager-learn/foundation/development/understand-java-api-best-practices.html?lang=en

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    ShagunMalikAuthor
    Level 3
    June 23, 2021

    Hey @ritesh_mittal , when I'm using your steps it is showing that ValueMap cannot be resolved to a type. What should I do?

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    Adobe Employee
    BimmiSoAdobe EmployeeAccepted solution
    Adobe Employee
    June 23, 2021

    Map<String, Object> param = new HashMap<>();
    param.put(ResourceResolverFactory.SUBSERVICE, "yourservice");
    try (ResourceResolver resolver = resourceResolverFactory.getServiceResourceResolver(param)) {

    Resource res = resolver.getResource("resource path");

    ValueMap pageProperties = resource.getValueMap();

    String tags = properties.get("cq:tag", String[].class);

    TagManager tagManager = resolver.adaptTo(TagManager.class);

    List<String> tagValue = new ArrayList<>();

    if (Objects.nonNull(tagManager)) {
    for (String v : tags) {
    Tag tag = tagManager.resolve(v);
    if (Objects.nonNull(tag)) {
    tagValue.add(tag.getTitle());
    }
    }

    }

     

    iterate over the tagValue in sightly and populate your meta data

    Translate
      ShagunMalikAuthor
      Level 3
      June 24, 2021
      Hey, need a clarification, What do you mean by "yourservice". I want to get tags attached to the page.
      Translate
      shelly-goel
      Adobe Employee
      shelly-goelAdobe Employee
      Adobe Employee
      June 23, 2021

      @shagunmalik  You can also retrieve the tags directly in the htl as below

      ${pageProperties.cq:tags @ context='html'}

      Translate
        vmadala
        vmadala
        Level 3
        June 24, 2021
         
           if I understand you correctly, you're trying to load the tags and want a modal to fetch these meta tags. Sample code for you:
          

         

        1. Create meta tags in  under "/content/cq:tags/metatags"

        2. Modal Java class:

         

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

        public class MetaTagModel {

         

        final String path = "/content/cq:tags/metatags";

         

        @SlingObject

        private ResourceResolver resourceResolver;

         

        Tag tag;

         

        @PostConstruct

        protectedvoid init() {

        TagManager tagManager = resourceResolver.adaptTo(TagManager.class);

        tag = tagManager.resolve(path);

        }

         

        public Iterator<Tag> getTags() {

        return tag.listChildren();

        }

         

        3. Use the below code in the header.vtl to render the meta tags

         

        <sly data-sly-use.metaTag="com.eqx.aem.eqxcorp.models.MetaTagModel">
        <sly data-sly-list="${metaTag.tags}">
        <meta name="${item.name}" content="${item.title}"/>
        </sly>
        </sly>

         

         

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          ShagunMalikAuthor
          Level 3
          June 24, 2021

          Hey @vmadala , I'm getting multiple errors. List is :

          "defaultInjectionStrategy cannot be resolved to a variable" ,

          "Model cannot be resolved to a type",

          "SlingObject cannot be resolved to a type",

          "Tag cannot be resolved to a type",

          "PostConstruct cannot be resolved to a type",

          "TagManager cannot be resolved to a type",

          "Iterator cannot be resolved to a type" Please help.

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