Adding JQuery Autocomplete in Symfony2 Entity field

Question

I have a city and voters entity in a one to many relationships.I want to convert the entity field(thousands of records in a dropdown) to a text input so that I can implement

Answer 1

Here a solution to add a field regarding the response given by the Symfony Controller. In success, add fields you want by returning a object. Then, in the select, you can access it by ui.item.fields

$('#mySelector').autocomplete({

        source : function(requete, reponse) {

            lettre = {
                lettre: $('#lettre').val()
            };

            $.ajax({
                url: Routing.generate('chargementSource'),
                dataType: 'json',
                data : lettre,
                success: function (donnee) {
                    
                    reponse(
                            $.map(donnee, function (objet) {
                                return { 
                                  value: '' + objet.nom + ' ' + objet.prenom +', '+ objet.adresse +' '+ objet.codepostal +', '+ objet.ville + '', 
                                 id: objet.id 
                               }
                            })
                    );

                }

            });
        },
        select: function (event, ui) {

            $('#myId').val(ui.item.id);
            //alert(ui.item.id);
            //$('#myId').val(ui.elem.value);

            return false;

        }

    });