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R
rp5352629
Level 2
April 9, 2020
Solved

Get Tags Set on Resource in custom properties

  • April 9, 2020
  • 2 replies
  • 8764 views

I want to get list of tags set on resource in custom properties (not in cq:tags).

Values in these properties are set using tagpicker.

 

I tried tagManager.getTagsForSubtree(resource, false) but it's returning values only from cq:tags and tagManager.getTags(resource) returns no tags.

 

Can anyone help in this regards?

 

Thanks

Ritesh

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Best answer by Vijayalakshmi_S

Hi,

 

If it is about custom property on the resource, then it is an usual way of retrieving properties from a resource which is via ValueMap.

Then the value retrieved can be resolved as a tag object. 

 

ValueMap rescProps = resource.getValueMap();

String tagStr = rescProps.get("custom propertyname", String.class);

if(null != tagStr){

    Tag actualTag =  tagManager.resolve(tagStr);

}

 

 

2 replies

Vijayalakshmi_S
Vijayalakshmi_SAccepted solution
Level 10
April 9, 2020

Hi,

 

If it is about custom property on the resource, then it is an usual way of retrieving properties from a resource which is via ValueMap.

Then the value retrieved can be resolved as a tag object. 

 

ValueMap rescProps = resource.getValueMap();

String tagStr = rescProps.get("custom propertyname", String.class);

if(null != tagStr){

    Tag actualTag =  tagManager.resolve(tagStr);

}

 

 

    R
    rp5352629Author
    Level 2
    April 13, 2020

    @vijayalakshmi_s,

    Thanks for reply.

    However there are multiple custom properties set on a page with tag values. And those can change in future. I don't want to bind the functionality to particular property.

    Is there any way to get those tags dynamically with above approach.

     

    Thanks,

    Ritesh

    BrianKasingli
    Community Advisor and Adobe Champion
    BrianKasingliCommunity Advisor and Adobe Champion
    Community Advisor and Adobe Champion
    April 10, 2020

    @vijayalakshmi_s,

    While using Sling Models, you can utilise the injector specific annotations.

    Touch UI Dialogue:

     

    <customTags jcr:primaryType="nt:unstructured" sling:resourceType="cq/gui/components/common/tagspicker" fieldLabel="Custom Tags" mode="contains" name="./customTags"/>

     

    Sling Model Java Class:

     

    package com.myexamples.models; import com.day.cq.tagging.Tag; import com.day.cq.tagging.TagManager; import lombok.Getter; import org.apache.sling.api.resource.Resource; import org.apache.sling.api.resource.ResourceResolver; import org.apache.sling.models.annotations.DefaultInjectionStrategy; import org.apache.sling.models.annotations.Model; import org.apache.sling.models.annotations.injectorspecific.SlingObject; import org.apache.sling.models.annotations.injectorspecific.ValueMapValue; import javax.annotation.PostConstruct; import java.util.ArrayList; import java.util.List; @Model(adaptables = Resource.class, defaultInjectionStrategy = DefaultInjectionStrategy.OPTIONAL) public class ExampleSlingModel { @SlingObject private ResourceResolver resourceResolver; @Getter @ValueMapValue private String[] customTags; @Getter private List<Tag> tags = new ArrayList<>(); @PostConstruct private void init() { resolveTags(); } private void resolveTags() { if (customTags != null) { TagManager tagManager = resourceResolver.adaptTo(TagManager.class); for (int i = 0, n = customTags.length; i < n; i++) { Tag tag = tagManager.resolve(customTags[i]); if (tag != null) { tags.add(tag); } } } } }

     

    Sightly:

     

    <sly data-sly-use.example="com.myexamplels.model.ExampleSlingModel"></sly> <ul data-sly-list.tag="${example.tags}"> <li>${tag.path}, ${tag.tagID}, ${tag.name}</li> </ul>

     

    Tip: The code above assumes that the current user has view access to the cq:Tags. You can use service-users to obtain the TagManager if permissions are not granted to specific users. 

     Never forget to write JUNIT Tests for your Java Sling Models: https://sourcedcode.com/aem-sling-models-unit-test-junit-4-with-examples

    I hope this helps.

    Vijayalakshmi_S
    Vijayalakshmi_S
    Level 10
    April 10, 2020

    Hi @briankasingli ,

    Hope it is addressed to the wrong recipient. 

     

    Hi @rp5352629,

    Based on where exactly you are accessing the resource and hence its properties, the approach differs.

    (In case of Sling Models which is via injecting the properties, Servlet/OSGI service, it is via Sling API or JCR API)

    In any way, per the original question of getting property value as tag, it is via tagManager.resolve(String tagId) // tagId refers to the property value. 

     

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