test condition for model class

[Vinod-N-E]

Hi,

I have a query, can we write a condition to check the methods in the model class before we call the model class using data-sly-use and call the methods.

here's a scenario:

Model Class,

@Model(adaptables = Resource.class)

public class HelloWorldModel {

    @ValueMapValue(name=PROPERTY_RESOURCE_TYPE, injectionStrategy=InjectionStrategy.OPTIONAL)

    @default(values="No resourceType")

    protected String resourceType;

    @inject

    private String message;

    public String getHelloMessage() {

        return message;

    }

}

HTML file

<div data-sly-use.model="com.bootcamp.core.models.HelloWorldModel">

data-message=${model.helloMessage} </div>

question: how do I use data-sly-test to check the class and it's objects

Thanks,

[Manu_Mathew_]

@Vinod-N-E it's recommended to write your logic on the sling model and assign a return value to a member variable and use that in HTL.

[Vinod-N-E]

Thank you Manu, but could I some how do it in the front end as well.

[Manu_Mathew_]

@Vinod-N-E I believe, data-sly-use initializes your sling model, ie. it basically declares component-beans with this statement for instance, to check conditions before that may not be possible. 

However, I am not sure what your use case is.

[Vinod-N-E]

I understand what you mean, thank you for the help.

[BrianKasingli]

Easy,
<sly data-sly-use.model="com.bootcamp.core.models.HelloWorldModel"></sly>
<sly data-sly-test="${model.helloMessage}>${helloMessage}</sly>

[Vinod-N-E]

This is helpful Brian, could you suggest me for a different secnario.

here's the scenario: take the example of the same model class above,

<section data-sly-use.model="com.bootcamp.core.models.HelloWorldModel" data-

message="${model.helloMessage}">

</section>

How do I write a test condition as an attribute for the section tag and execute the helloMessage method.

Thanks,

[BrianKasingli · Accepted solution]

<section data-sly-use.model="com.bootcamp.core.models.HelloWorldModel" data-

message="${model.helloMessage}">

</section>

This is just fine, looks like you are using HTML attributes, which is consumed by the JS frontend code. you can detect whether data-message is null, blank or not, then perform the task as needed.

[Vinod-N-E]

Thanks Brian, your answers were helpful.