[英]dependent dropdown error Undefined index: TRANCHE codeigniter
i have this drop-down dependent on the choices of the other 2 drop-downs i have debugged the java script but it has an error on my error logs that says, 我有这个下拉菜单,取决于我调试了Java脚本的其他2个下拉菜单的选择,但是我的错误日志中有一个错误,说:
Undefined index: TRANCHE
here is my controller 这是我的控制器
public function dependent_dropdown()
{
if(isset($_POST['TRANCHE']) || isset($_POST['GRADE']))
{
$data = $_POST['TRANCHE'];
$data1 = $_POST['GRADE'];
$this->output
->set_content_type("application/json")
->set_output(json_encode($this->EmployeeSalary_Model->getType($data, $data1)));
}
}
and here is my javascript 这是我的javascript
jQuery(document).ready(function(){
$("#GRADE").change(function() {
var TRANCHE = {"TRANCHE" : $('#TRANCHE').val()};
var GRADE = {"GRADE" : $('#GRADE').val()};
console.log(TRANCHE);
console.log(GRADE);
$.ajax({
type: "POST",
data: (TRANCHE, GRADE),
url: "<?php base_url(); ?>EmployeeSalary/dependent_dropdown/",
success: function(data){
var select = $('#SAL_ID');
select.html('');
$.each(data, function(i, option){
select.append("<option value='"+option.ID+"'>"+option.AMOUNT+"</option>");
});
}
});
});
});
please tell me the problem and how can i debug it. 请告诉我这个问题以及如何调试。 thanks
谢谢
You have to make an array to send both values. 您必须制作一个数组来发送两个值。
var postData = [ TRANCHE , GRADE ]
$.ajax({
type: "POST",
data: JSON.stringify(postData), ////stringify is important
url: "<?php base_url(); ?>EmployeeSalary/dependent_dropdown/",
success: function(data){
var select = $('#SAL_ID');
select.html('');
$.each(data, function(i, option){
select.append("<option value='"+option.ID+"'>"+option.AMOUNT+"</option>");
});
}
});
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