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SOLVED

Multifield component creation error in AEM 6.5

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Level 2

Hello everyone!
I am trying to no avail to create a component for my Multifield, I have followed some guides (https://aemhints.com/2020/10/24/coral-nested-multifield-aem65/ ,https://blogs.perficient.com/2018/08/24/using-sling-models-with-nested-composite-mulitifields-in-aem... ) but unfortunately it seems not to take the multifield field.

This is my html:

 

                                    <multi
                                            jcr:primaryType="nt:unstructured"
                                            sling:resourceType="granite/ui/components/coral/foundation/form/multifield"
                                            composite="{Boolean}true"
                                            fieldLabel="String">
                                        <field
                                                jcr:primaryType="nt:unstructured"
                                                sling:resourceType="granite/ui/components/coral/foundation/container"
                                                name="./multifield">
                                            <items jcr:primaryType="nt:unstructured">
                                                <column
                                                        jcr:primaryType="nt:unstructured"
                                                        sling:resourceType="granite/ui/components/coral/foundation/container">
                                                    <items jcr:primaryType="nt:unstructured">
                                                        <text                                                            
                                                   jcr:primaryType="nt:unstructured"
                                                                sling:resourceType="granite/ui/components/coral/foundation/form/textfield"
                                                                fieldLabel="Text"
                                                                name="./text"/>
                                                    </items>
                                                </column>
                                            </items>
                                        </field>
                                    </multi>

 

 

this is the component:

@Model(...)
public class Multi {

   
    @inject
    @ValueMapValue(injectionStrategy = InjectionStrategy.OPTIONAL)
    private String text;


    public  String getText() {
        return text;
    }

    @inject
    @getter
    @ValueMapValue(injectionStrategy = InjectionStrategy.OPTIONAL)
    public java.util.List<String> multifield = new ArrayList<>();


}

 

But when I go to debug I see that nothing passes and always returns the null. What am I doing wrong?

 

1 Accepted Solution

Avatar

Correct answer by
Employee Advisor

@Jacket97 hi,

 

thanks for conforming, I think you are not supposed to use getter annotation with Arraylist.

Instead replace it with :

@Inject
@ValueMapValue(injectionStrategy = InjectionStrategy.OPTIONAL)
public java.util.List<String> multifield;

 

public List<String> getMultifield() {
if(multifield!=null){
return new ArrayList<String>(multifield);
}else{
return Collections.emptyList();
}
}

View solution in original post

1 Reply

Avatar

Employee Advisor

Hey @Jacket97 ,

 

Had a quick look of your code, I see following issues on my glance :
annotation is @Inject & NOT @inject also @Getter & NOT @getter.

Can you please check if you are importing and using correct annotations :

javax.inject.Inject;
jdk.nashorn.internal.objects.annotations.Getter;


OR is it the case that while pasting the ode you used small case by mistake ?

You can use this video reference as well : https://www.youtube.com/watch?v=TJaAdbkyPJQ


Thanks.

Avatar

Level 2

Thanks for the answer, in the code they are written correctly, it is just a mistake when I copied it in the question box

Avatar

Correct answer by
Employee Advisor

@Jacket97 hi,

 

thanks for conforming, I think you are not supposed to use getter annotation with Arraylist.

Instead replace it with :

@Inject
@ValueMapValue(injectionStrategy = InjectionStrategy.OPTIONAL)
public java.util.List<String> multifield;

 

public List<String> getMultifield() {
if(multifield!=null){
return new ArrayList<String>(multifield);
}else{
return Collections.emptyList();
}
}

Avatar

Community Advisor

Hi @Jacket97 ,

you can use simple in slingmodel

@inject 

public Resource multifield;

 in sightly:

<sly data-sly-use.model="yourmodel">

<data-sly-list.list1=model.multifield.listchildren">

like that you can access item.

 

Kr,

Sanjay