我正在使用在CodeIgniter上使用动态或从属下拉列表的项目。这是我的菜鸟逻辑,即将视图的国家/地区值传递给模型,然后模型从视图中获取具有相同国家/地区值的状态数据,然后控制器从该模型中获取状态数据并将其再次传递给视图。问题是状态下拉列表什么也不显示。 抱歉,我是编码方面的新手。
//This is the Controllers (Pkl.php)
$data['all_country'] = $this->Server_Model->get_country_model();
$data['all_state'] = $this->Server_Model->get_state_model();
$this->load->view('contents/page_dashboard', $data);
//This is the Models (Server_Model.php)
function get_country_model(){
$db_jarlap = $this->load->database('gis_bali', TRUE);
$db_jarlap->select("*");
$db_jarlap->from("country");
$que = $db_jarlap->get();
return $que->result();
}
function get_state_model(){
$kakakoko = filter_input(INPUT_POST, 'country_id');
$db_jarlap = $this->load->database('gis_bali', TRUE);
$db_jarlap->select("*");
$db_jarlap->from("state");
$db_jarlap->where(" id_country = $kakakoko ");
$que = $db_jarlap->get();
return $que->result();
}
//This is the Views Content (page_dashboard.php)
<script src="<?php echo base_url() ?>resources/js/jquery-3.3.1.min.js"</script>
<script>
$(document).ready(function(){
$('#formCountry').change(function(){
var country_id = $(this).val();
$.ajax({
url: "<?php echo base_url() ? >application/models/Server_Model.php",
method: "POST",
data: {country_id:country_id},
success: function(data) {
$('#formState').html(data);
}
});
});
});
</script>
<select name="formCountry" id="formCountry">
<?php foreach($all_country as $semua_country): ?>
<option value="<?php echo $semua_country->id_country; ?>"><?php echo $semua_country->nama_country; ?></option>
<?php endforeach; ?>
</select>
<select name="formState" id="formState" >
<?php foreach($all_state as $semua_state): ?>
<option value="<?php echo $semua_state->id_state; ?>"><?php echo $semua_state->nama_state; ?></option>
<?php endforeach; ?>
</select>
感谢您的帮助。
答案 0 :(得分:0)
您不应直接调用模型,而应调用Pkl
控制器,我假设您正在index()
控制器上使用Pkl
方法:
$(document).ready(function () {
$('#formCountry').change(function () {
var country_id = $(this).val();
$.ajax({
url: "<?php echo base_url() ?>pkl", // using Pkl controller
method: "POST",
data: {
country_id: country_id
},
success: function (data) {
$('#formState').html(''); // empty the select option element
$.each(data, function(){ // format each option returned from Pkl controller
$("#formState").append('<option value="'+ this.id_state +'">'+ this.nama_state +'</option>');
});
}
});
});
});