How to load user data using codeigniter - ajax

Question

When I use different user account, it still load the same data from database. I want to display only the data of the specific user. How can I load the data of specific user? Thank you for your response.
Here is my view using ajax query.
//loading the content
$(document).ready(function(){
{
$.ajax({
url:"<?php echo base_url(); ?>kpi/loaddatatest",
dataType:"JSON",
method:"post",
success:function(data){
//Table will create when the ## ##
var html = '<tr>';
html += '<td id="kpi_description" contenteditable placeholder="Enter your KPI"></td>';
html += '<td id="kra_description" contenteditable placeholder="Enter your KRA"></td>';
html += '<td id="kpi_weight" contenteditable></td>';
html += '<td></td>';
html += '<td></td>';
html += '<td><button type="button" name="btn_add" id="btn_add" class="btn btn-xs btn-
success"><span class="glyphicon glyphicon-plus">+</span></button></td></tr>';
for(var count = 0; count < data.length; count++)
{
html += '<tr>';
html += '<td class="table_data" data-row_id="'+data[count].id+'" data-
column_name="kpi_description" contenteditable>'+data[count].kpi_description+'</td>';
html += '<td class="table_data" data-row_id="'+data[count].id+'" data-
column_name="kra_description" contenteditable>'+data[count].kra_description+'</td>';
html += '<td class="table_data" data-row_id="'+data[count].id+'" data-
column_name="kpi_weight" disabled>'+data[count].kpi_weight+'</td>';
html += '<td></td>';
html += '<td></td>';
html += '<td><button type="button" name="delete_btn" id="'+data[count].id+'" class="btn
btn-xs btn-danger btn_delete"><span class="glyphicon glyphicon-remove">x</span></button>
</td></tr>';
}
$('#testtable').html(html);
}
});
}
Here is my controller:
public function loaddatatest()
{
$data = $this->Kpi_model->loaddatatest();
echo json_encode($data);
}
Here is my model:
public function loaddatatest()
{
$this->db->order_by('id', 'ASCE');
$data = $this->db->get('kpi_result');
if($data->num_rows()>0)
{
return $data->result();
}
else
{
return false;
}
}

Answer 1

To query specific user make sure your database has id_user, when query can be done like this in loaddatatest()function using get_where().
$this->db->get_where('user_id', array('user_id => $user_id))
And you can pass specific user id through loaddatatest() argument like this
$data = $this->Kpi_model->loaddatatest($user_id);