Question

I am new to PHP Codeigniter framework. I am designing a page in which I am using a link. On clicking the link it is calling a jquery function, which submits form through jquery. I have used codeigniter form validation methods for server side validation and for the timebeing I have disabled the client side validation.

The problem is that in this process when the form is submitted through jquery, the codeigniter form validation method is not working.

But if I am using a submit button to submit the form then the codeigniter form validation method works perfectly.

Please advise me what to do if I need to submit the form through jquery and use the codeigniter form validation method.

Please find the code below:

Login Form:

<?php echo validation_errors(); ?>
<form name="login-form" id="login-form" method="post" action="<?php echo base_url();?>index.php/login/login_form" >
    <H2>Login</H2>
    <div id="login-box-name">
        Email:
    </div>
    <div id="login-box-field">
        <input name="user-name" id="user-name" class="form-login" title="Please Enter Correct User Name" value="" size="30" maxlength="2048" />
    </div>
    <div id="login-box-name">
        Password:
    </div>
    <div id="login-box-field">
        <input name="password" id="password" type="password" class="form-login" title="Please Enter Correct Password" value="" size="30" maxlength="2048" />
    </div>
    <br />
    <span class="login-box-options">
        <input type="checkbox" name="1" value="1" title="Want this computer to remember you!!"> Remember Me <a href="#" id="login-div-change">Forgot password?</a>
    </span>
    <br />
    <br />
    <a href="" id="login-submit">
        <img src="<?php echo base_url();?>assets/images/login-btn.png" width="110" height="40" style="margin-left:90px;" />
    </a>
    <input type="submit" name="submit" id="submit" value="Submit" />
</form>

jquery function to submit the form on clicking the “link”:

    $("#login-submit").click(function()
    {
    $('#login-form').submit();
    return false;
    });

Controller function:

    public function login_form()
    {

        $this->load->helper(array('form', 'url'));
        $this->load->library('form_validation');
        $data['title'] = 'Log In';

        $data['errorMessage'] = '';
        $this->form_validation->set_rules('user-name', 'Email', 'required');
        $this->form_validation->set_rules('password', 'Password', 'required');

        if ($this->form_validation->run() == FALSE)
        {
        $this->load->view('templates/header', $data);
        $this->load->view('login', $data);
        $this->load->view('templates/footer');
        }

        else
        {
        $this->load->view('templates/header', $data);
        $this->load->view('templates/menu');
        $this->load->view('index', $data);
        $this->load->view('templates/footer');
        }

    }

Here if I click on the “Submit button of the form, then the codeigniter validation works for user-name and password fields. But if I click the link with id=”login-submit”, then it calls the jquery function and the form get submitted. But the codeigniter validation does not work for user-name and password fields this time.

I need to submit the form through the link and the codeigniter validation function should work for this.

Thanks in Advance…..

Answer 1

Use .preventDefault() instead of just returning false on the anchor click event.

This has happened to me before and it seems to me that there is a conflict somewhere using .submit() inside a click event and returning false to stop the anchor’s default behavior.