您需要返回一个 hash
您autocomplete在doctors控制器中的操作应如下所示：
def autocomplete
render json: Doctor.search(params[:query], autocomplete: true, limit: 10).map do |doctor| { name: doctor.name, city: doctor.city, country: doctor.country }
end
end
添加displayKey您的预输入选项：
$( function () {
$("#search").typeahead({
name: "doctor",
displayKey: 'name',
remote: "/doctors/autocomplete?query=%QUERY"
});
});
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