Using Codeigniter Form Validation with Jquery serialize

Question

I want to use form validation methods of CI for validating my input data. As the form submitted via AJAX I'm using serializeArray() to post data to my controller so I don't have to post on by one data or wrinting some each() function. The problem is that form validation look for data in $_POST. Using serialize() didn't help neither. Is there any solution beside extending form validation library?

here my code: (controller)

$form_data = $this->input->post('form_data');

$this->load->library('form_validation');
$this->form_validation->set_rules('p_company_name', 'نام شرکت', 'required');
if ($this->form_validation->run() == FALSE)
{
  echo "fail";die(); // if i use serialize() or serializeArray()
}
else
{
  echo "success";die(); // if i use label:value for each form input
}

js code:

$.ajax({
    type: "POST",
    cache: false,
    url: url,
    data: {'form_data': form_data},
    dataType: "html",
    success: function(res, textStatus, xhr) 
    {
        //  do something
    },
    error: function(xhr, textStatus, thrownError)
    {
        //do something else
    },
    complete: function()
    {
        // do some final thing
    },
    async: true
});

Thanks in advance

jmadsen · Accepted Answer · 2013-10-21 11:37:48Z

1

post your data as:

data: form.serialize(),

and it will work as normal (form being a normal jquery reference to your page form, not just the word "form")

answered Oct 21, 2013 at 11:37

jmadsen

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7 Comments

Sobhan Atar Over a year ago

Thanks @jmadsen but as I told I tested serialize and it still give me error. That I think because serialze() make the form a query string but nothing that can be understandable by $_POST. for example if I have 2 form element it becomes name1=value1&name2=value2 and will be put in $_POST['form_data']. So when codeigniter search for $_POST["name1"], the result will be false.

jmadsen Over a year ago

why is it going in form_data? it should just be going into POST vars as normal in your controller, do a var_dump($_POST) and see what's going on

Sobhan Atar Over a year ago

form_data = $("myform").serialize(). As it's stated in jquery website serialize "Encode a set of form elements as a string for submission.". It means that after you call this function and assign it to some variable in data property of Ajax, it's just include a query string. You can see the example here [api.jquery.com/serialize/]. using var_dump also shows something like string(n) name1=value1&name2=value2&...

jmadsen Over a year ago

Don't assign it to a variable, just pass it as your data: part of the ajax call; that's what's causing your problem. You aren't passing serialize(), you're passing a string, and you don't want that

jmadsen Over a year ago

read the answer I already gave you, and look around on the web a bit, please

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