Get Tag data

Question

I've a multifield where-in I can add multiple tags. Now what I'm trying is to fetch the title of the tag. Attached are the screenshots of the dialog.

Resource Type of the field is : /libs/cq/gui/components/coral/common/form/tagfield

This is the method with which I had tried - Problem is it throws null pointer exception.

private void getCourses(List<String> coursesType, List<String> coursesTypeList) {
		TagManager tagManager;
		Iterator<String> coursesubjectList = coursesType.iterator();
		while (coursesubjectList.hasNext()) {
			resourceResolver = request.getResourceResolver();
			tagManager = resourceResolver.adaptTo(TagManager.class);
			Tag tag = tagManager.resolve(coursesubjectList.next());
			if(tag != null){
				coursesTypeList.add(tag.getTitle());
			}
			
		}
	}

Please suggest any corrections or you can even help me with the reqd code snippet.

SantoshSai · Accepted Answer

Hi @arindam6600 ,Can you please check if your resourceResolver object is null?Also refer this code: https://gist.github.com/ksurendra/900b2c5ce943fd85112e4de376aaaf20Regards,Santosh

salamswapnil · Answer

Hi @arindam6600

I would suggest you to use tagpicker instead of using tagfield. It allows you to select multiple tags so you don't need to use multifield with tagfield.

sling:resourceType:cq/gui/components/common/tagspicker

Below code snippet should work

@Inject
private String[] tags;
private void getCourses(String[] tags, List<String> coursesTypeList) {
	resourceResolver = request.getResourceResolver();
	TagManager tagManager = resourceResolver.adaptTo(TagManager.class);
	for (String tag: tags) {
		Tag tag = tagManager.resolve(tag);
		if(tag != null){
			coursesTypeList.add(tag.getTitle());
		}
	}
}

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