Code igniter validation- Ajax, error:function work while validation->run is true - ajax

Question

Hi I try to make validation form with ajax. When Textbox is empty, There is no problem everything works fine and give right errors. But when I fill in form Ajax else is not working and it goes to error:function . Please could you help!
When I enable dataType:"JSON",
I see output
false
Basvuru:1379 {isim: " İsim Zorunludur!", soyad: " Soyad Zorunludur!", emailadresi: " Email Adresi Zorunludur!", ilce: "", il: "", …}
When I disable dataType:"JSON", ı could see console.log(data) of post datas otherwise goesto error:function
controller:
function basvuru_ekle()
{
$this->form_validation->set_rules('isim', 'İsim', 'required');
$this->form_validation->set_rules('soyad', 'Soyad', 'required' );
$this->form_validation->set_rules('emailadresi', 'Email Adresi', 'required' );
$this->form_validation->set_rules('ilce', 'İlçe', 'required' );
$this->form_validation->set_rules('il', 'İl', 'required' );
$this->form_validation->set_rules('adres', 'Adres', 'required' );
$this->form_validation->set_rules('kordinat', 'Kordinat', 'required' );
//$this->form_validation->set_error_delimiters('Hata:', '');
$this->form_validation->set_message('required', ' {field} Zorunludur!');
if ($this->form_validation->run() == FALSE) {
$data = array(
'isim' => form_error('isim'),
'soyad' => form_error('soyad'),
'emailadresi' => form_error('emailadresi'),
'ilce' => form_error('ilce'),
'il' => form_error('il'),
'adres' => form_error('adres'),
'kordinat' => form_error('kordinat'),
'status'=> FALSE
);
echo json_encode($data);
}
else {
$basvurubiletnumarasi = strftime("%Y%m%d%H%M%S");
$basvurudurumu = "1";
$data = array(
'basvurubiletnumarasi' => $basvurubiletnumarasi,
'isim' => $this->input->post('isim') ,
'soyad' => $this->input->post('soyad') ,
'emailadresi' => $this->input->post('emailadresi') ,
'ilce' => $this->input->post('ilce') ,
'il' => $this->input->post('il') ,
'ilce' => $this->input->post('ilce') ,
'adres' => $this->input->post('adres') ,
'kordinat' => $this->input->post('kordinat') ,
'basvurudurumu' => $basvurudurumu,
// 'olusturulmatarihi' => $this->input->post('olusturulmatarihi'),
);
$insert = $this->basvuru_model->basvuru_ekle($data);
echo $data=json_encode(array("status" => TRUE));
}
}
View Ajax:
function save()
{
var url;
if(save_method == 'add')
{
url = "<?php echo site_url('index.php/basvuru/basvuru_ekle')?>";
}
else
{
url = "<?php echo site_url('index.php/basvuru/basvuru_guncelle')?>";
}
// ajax adding data to database
$.ajax({
type:"POST",
url:url,
data:$('#form').serialize(),
dataType:"JSON",
success:function (data) {
// var obj = $.parseJSON(data);
// $('#data1').html(data);
$('#isim1').html(data.isim);
$('#soyad1').html(data.soyad);
$('#emailadresi1').html(data.emailadresi);
$('#ilce1').html(data.ilce);
$('#il1').html(data.il);
$('#adres1').html(data.adres);
$('#kordinat1').html(data.kordinat);
console.log(data.status);
// alert(data.sonuc);
if(data.status){
console.log("false");
}
else{
console.log("true");
console.log(data);
}
},
error:function(data){
console.log("error");
}
});
}
model:
function basvuru_ekle($data)
{
print_r($data);
$this->db->insert($this->table, $data);
return $this->db->insert_id();
}

Answer 1

Remove print_r() in insert function and try this:
function save() {
var url;
if (save_method == 'add') {
url = "<?php echo site_url('index.php/basvuru/basvuru_ekle')?>";
} else {
url = "<?php echo site_url('index.php/basvuru/basvuru_guncelle')?>";
}
// ajax adding data to database
$.ajax({
type: "POST",
url: url,
data: $('#form').serialize(),
dataType: "JSON",
success: function(data) {
if (data.status == false) {
console.log('false');
$('#isim1').html(data.isim);
$('#soyad1').html(data.soyad);
$('#emailadresi1').html(data.emailadresi);
$('#ilce1').html(data.ilce);
$('#il1').html(data.il);
$('#adres1').html(data.adres);
$('#kordinat1').html(data.kordinat);
} else {
console.log("true");
}
},
error: function(data) {
console.log("error");
}
});
}

Answer 2

I checked to find the exact problem.As Alex said problem was because of Print_r() in modal. After I erased it ,now it works fine.
After fixed the problem.
view:
function save()
{
var url;
if(save_method == 'add')
{
url = "<?php echo site_url('index.php/basvuru/basvuru_ekle')?>";
}
else
{
url = "<?php echo site_url('index.php/basvuru/basvuru_guncelle')?>";
}
// ajax adding data to database
$.ajax({
type:"POST",
url:url,
data:$('#form').serialize(),
dataType:"JSON",
success: function(data) {
if (data.status == false) {
console.log('false');
$('#isim1').html(data.isim);
$('#soyad1').html(data.soyad);
$('#emailadresi1').html(data.emailadresi);
$('#ilce1').html(data.ilce);
$('#il1').html(data.il);
$('#adres1').html(data.adres);
$('#kordinat1').html(data.kordinat);
} else {
console.log("true");
$('#modal_form').modal('hide');
location.reload();// for reload a page
}
},
error: function (jqXHR, textStatus, errorThrown) {
if (jqXHR.status == 404) { alert('AJAX page not found.');
}
else {
alert('AJAX Error: ' + textStatus + ': ' + errorThrown); }
}
});
}
controller:
function basvuru_ekle()
{
$this->form_validation->set_rules('isim', 'İsim', 'required');
$this->form_validation->set_rules('soyad', 'Soyad', 'required' );
$this->form_validation->set_rules('emailadresi', 'Email Adresi', 'required' );
$this->form_validation->set_rules('ilce', 'İlçe', 'required' );
$this->form_validation->set_rules('il', 'İl', 'required' );
$this->form_validation->set_rules('adres', 'Adres', 'required' );
$this->form_validation->set_rules('kordinat', 'Kordinat', 'required' );
//$this->form_validation->set_error_delimiters('Hata:', '');
$this->form_validation->set_message('required', ' {field} Zorunludur!');
if ($this->form_validation->run() == FALSE) {
$data = array(
'isim' => form_error('isim'),
'soyad' => form_error('soyad'),
'emailadresi' => form_error('emailadresi'),
'ilce' => form_error('ilce'),
'il' => form_error('il'),
'adres' => form_error('adres'),
'kordinat' => form_error('kordinat'),
'status'=> FALSE
);
echo json_encode($data);
}
else {
$basvurubiletnumarasi = strftime("%Y%m%d%H%M%S");
$basvurudurumu = "1";
$data = array(
'basvurubiletnumarasi' => $basvurubiletnumarasi,
'isim' => $this->input->post('isim') ,
'soyad' => $this->input->post('soyad') ,
'emailadresi' => $this->input->post('emailadresi') ,
'ilce' => $this->input->post('ilce') ,
'il' => $this->input->post('il') ,
'ilce' => $this->input->post('ilce') ,
'adres' => $this->input->post('adres') ,
'kordinat' => $this->input->post('kordinat') ,
'basvurudurumu' => $basvurudurumu,
// 'olusturulmatarihi' => $this->input->post('olusturulmatarihi'),
);
$insert = $this->basvuru_model->basvuru_ekle($data);
echo json_encode(array(
"status" => TRUE,
));
}
}
model:
function basvuru_ekle($data)
{
$this->db->insert($this->table, $data);
return $this->db->insert_id();
}