Dynamic Multifield Length

Question

Depending on certain layout properties returned by the sling model, I would like to make either 1 or 2 multifield entries available in my dialog. Is there a way make the dialog display either 1 or 2 entries in a multifield? Is this best handled via validation scripts?

abhishekanand_ · Accepted Answer

Hi @johns43992246

While validation scripts can help enforce rules, they are typically used for validation (e.g., mandatory fields, data formats) rather than dynamically adjusting the number of multifield entries.

however you can try below steps:

Create a Sling Model associated with your component. Within the Sling Model, inject the dialog’s values using the @ValueMapValue annotation. Based on the layout properties, dynamically set the properties of the current page’s ValueMap.

you can check the attached blog reference for more detailed walkthrough
All About Dynamic Dropdown (Granite DataSource) in AEM - unLock Learning

avesh_narang · Answer

hey @johns43992246 ,If you possess this data (maximum number of entries per multifield) prior to loading the dialog or during the dialog loading process, then you can proceed to register it with the foundation validator.(function (document, $) {    "use strict";    $(document).on('foundation-contentloaded', function () {    //get max count with your business logic});validation("./fieldName",maxCount);function validation(fieldName,maxCount) {        $(window).adaptTo("foundation-registry")            .register("foundation.validation.validator", {                selector: 'coral-multifield[data-granite-coral-multifield-name^="' + fieldName + '"]',                validate: function (el) {                    var totalCount = $(document).find(el).find('>coral-multifield-item').length;                        if (totalCount > maxCount) {                            return "Maximum Fields allowed are: " + maxCount;                        }                    }                },            });    }})(document, Granite.$);

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