How to remove dublicate values using codeigniter and ajax? - ajax

Question

I return passports from my database when I select user using codeigniter and I'm getting these data using ajax.
This is my php code in the controller:
public function contactsPassports(){
// POST data
$this->load->model('contacts/contacts_international_pass_m');
$data = $this->input->post();
$passports = array();
$where = array('contact_id'=>$data['selected_id']);
$passports = $this->contacts_international_pass_m->where($where)->order_by('id','DESC')->get_all();
if(!empty($passports)) {
foreach($passports as $item)
{
$item->pass = $this->contacts_international_pass_m->get($item->nat_passport_num);
}
}
$this->data->passports = $passports;
echo json_encode($this->data);
}
And this is my ajax code:
$.ajax({
url:'/companies/ajax/contactsPassports',
method: 'post',
data: {"selected_id": contactID},
dataType: 'json',
async: true,
success: function(data){
var html = '';
$.each(data.passports, function(key, value) {
console.log(data);
html += '<div class="nationality_name" style="float:left">'+ value.nat_passport_num + '</div>' + '<div class="nationality_name_delimiter" style="float:left">'+', '+'</div>';
});
$('#passport').html(html);
}
});
But I want to remove the dublicate passports for every user. For example now I am getting this:
User 1
12345678, 1234, 1234, 123456, 123456
And I want to getting this:
User 1
12345678, 1234, 123456

Answer 1

You can use distinct query builder to select only distinct values:
$passports = $this->contacts_international_pass_m->distinct()->select('nat_passport_num')->where($where)->order_by('id','DESC')->get_all();