Cannot get DefaultSlingScript: data-sly-use needs to be passed an identifier

[anasustic]

Hi

When I add to my template

<sly data-sly-use.storeLink="${'android' == model.device ? model.appleStoreLink : model.googlePlayLink}"></sly>

I get the following error

Cannot get DefaultSlingScript: org.apache.sling.api.SlingException: Cannot get DefaultSlingScript: data-sly-use needs to be passed an identifier

My model isDevice looks like:

public String isDevice() {
    String userAgent = request.getHeader("user-agent");

    if (userAgent.contains("iPhone")) {
        return "ios";
    } else if(userAgent.contains("Android")){
        return "android";
    } else {
        return StringUtils.EMPTY;
    }
}

Any suggestions what I am doing wrong?

[n_radhakrishna]

use data-sly-test instead of data-sly-use.

[anasustic]

Hi,

Will this always evaluate:

<sly data-sly-test.storeLink="${'android' == model.device ? model.appleStoreLink : model.googlePlayLink}"></sly>

Why does the  

data-sly-use

 throw an error?

[n_radhakrishna]

data-sly-use: https://experienceleague.adobe.com/docs/experience-manager-htl/using/htl/block-statements.html?lang=...

data-sly-test: https://experienceleague.adobe.com/docs/experience-manager-htl/using/htl/block-statements.html?lang=...