hellp guys,
I've been working on ajax recently, and I have a problem in using it with codeigniter form validation library. I used the example that tool generate in the function http://formtorch.geekhut.org/.
Now, ajax works perfectly and return data correctly when I use json_encode()
function with dummy data, but validation in the example uses validation
library instead of form_validation
library, which seems to be older version.
For that, validation didn't work with ajax in that example, specifically $this->form_validation->run()
function makes ajax return no result even if I echo dummy data using json_encode()
in the beginning of create_course()
.
so what's wrong with validation with ajax, and explain to me how data sent by ajax received by the controller.
so this is my code:
function create_course()
{
$this->form_validation->set_rules('course_code', 'course_code', 'trim|xss_clean|required');
$this->form_validation->set_rules('name', 'name', 'xss_clean|required');
// .. etc
if ($this->form_validation->run()) {
// validation ok
$data['course_code'] = $this->form_validation->set_value('course_code');
$data['name'] = $this->form_validation->set_value('name');
// ... etc
if ($this->models_facade->create_course($user_id,$data)) { // success
$data = array( 'profile_change' => $this->lang->line('profile_change'));
} else { // fail
$data = array( 'profile_change_error' => $this->lang->line('profile_change_error'));
}
}
else
{
$data = array(
'course_code' => $this->form_validation->course_code_error,
'name' => $this->form_validation->name_error
);
}
echo json_encode($data);
}
and this is the Jquery Ajax function
$(function(){
$("#submit").click(function(){
var course_code = $("#course_code").val();
var name = $("#name").val();
// etc
$.post("<?php echo base_url() ?>home/create_course", course_code:course_code, name:name},
function(data){
function(data){
alert(data.data);
$("#course_code_error").html(data.course_code);
$("#name_error").html(data.name);
},'json');
});
return false;
});
Rather than printing out via "this->form_validation->xxxx_error" you can utilize Form Helper method "form_error()" to call the error messages.
So you can do something like..
$data = array(
'course_code' => form_error('course_code'),
'name' => form_error('name')
);
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