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Editorial Team
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Asked: 2026-06-07T03:58:58+00:00

Whenever I type in the autocomplete field an ajax request is sent and there

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Whenever I type in the autocomplete field an ajax request is sent and there is no code I’ve written to do this. Checking the console I see it’s a 400 GET request to the controller that loaded this view with param (json) appended to the url. I’m absolutely stumped.

<head>
<script data-main="<?=base_url()?>public/requirejs/main.js" src="<?=base_url()?>public/requirejs/require-jquery.js"></script>
<script>
    requirejs(['a_mod'],
        function(a_mod) {
            $(document).ready(function() {
                var param = [];
                param = $('#elem').attr('value');
                a_mod.foo(param, "#someElem");
            });
        });
<script>

main.js

require(["jquery",
         "jquery-ui"],
         function() {

         }
);

The autocomplete function

'foo' : function(param, elementAutocomplete, elementTags) {
        console.log("init ac");
        $(elementAutocomplete).autocomplete({
            source: param,
            minLength: 1,
            select: function (event, ui) {
                event.preventDefault();
                //
            }

        }).data( "autocomplete" )._renderItem = function( ul, item ) {
            return $("<li></li>")
                .data( "item.autocomplete", item )
                .append( '<a>' + item.label  + '</a>' )
                .appendTo(ul);
        }
    },
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1 Answer

  1. Editorial Team

    Your source attribute for the autocompleter is a string:

    param = $('#elem').attr('value');

    And a string source means that it is a URL:

    Autocomplete can be customized to work with various data sources, by just specifying the source option. A data source can be:

    • an Array with local data
    • a String, specifying a URL
    • a Callback

    Saying var param = []; just means that param is initialized as an empty array, it doesn’t mean that param will always be an array. You need to fix your param value to be an array.

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