How to get name or id of the input?

Question

I have few fields which have different id's and name's. I have specified a common class name to those fields for eg. class="selectajax".

I want to get the select's id="xxx" or name="xyz" value whenever it gets focus via jquery and I want to do this because i'm using select2 and whenever something is typed for searching via ajax, I want to get the name of the field so I can pass it to the ajax request.

So far I have this code but its producing error:

<script>
$(document).ready(function() {
    $('.selectajax').select2({
        var name1 = $(this).attr("name");
        alert(name1);

        ajax: {
            url: 'ajax-products.php',
            data: function(params) {
                var query = {
                    search: params.term,
                    type: 'public'
                }

                // Query parameters will be ?search=[term]&type=public
                return query;
            }
        }
    });
});
</script>

Any help is appreciated.

Thanks in advance.

Answer 1

I know it is very late to answer, but I was stuck on the same issue.

I added the data-attribute-id to the input name

<select ... data-attribute-id='<?= $attributeId?>'>...</select>

Then I initialized the select2 and send the attribute id in the parameter of the data.

$('#option').select2({
    ...
    ajax: {
        url: '#',
        dataType: 'json',
        type: 'GET',
        delay: 250,
        data: function(params) {
            let attribute_id = $(this).attr('data-attribute-id'); // retrieved the id
            return {
                search: params,
                fk_attribute_id: attribute_id, //send here
            };
        },
        processResults: function(data, params) {
        return {
            results: $.map(data.attributeValues, function(item) {
                return {
                    text: item.attribute_value,
                    id: item.id,
                }
            })
        };
    },
});

Hope it helps for anyone in the near future.