CodeIgniter 2.1 form_validation库不使用ajax

时间:2015-02-03 12:31:32

标签: ajax validation codeigniter

我有一个表单,在提交时,如果有一个表单返回错误,或者如果验证通过则将数据提交给数据库表,并且它工作正常。

现在我想用ajax做同样的事情,但无论是否输入内容,验证似乎总是返回false。

我的控制器:

function add_new_category_ajax() 
    {
        // make sure it's the admin, else redirect
        if ( ! $this->session->userdata('is_admin') ) {
            redirect('admin/login'); 
            exit();
        }

        // load form validation library
        $this->load->library('form_validation');

        // validate fields
        $this->form_validation->set_rules('category_title', 'Category Title', 'trim|required');

        // if validation failed
        if ($this->form_validation->run($this) == FALSE) 
        {   
            // dummy var
            $data['dummy'] = '';

            // generate error message 
            $data['error'] = '<p class="errormsg">You must enter a category title.</p>'; 

            // load the view        
            $this->load->view('new_category_view', $data);        
        }
        else 
        // validation passed, add new category 
        {   

            // get category_title
            $ct = $this->input->post('category_title');

            // check if category title exists
            $cte = $this->mdl_categories->category_title_exists($ct);               

            if ( $cte )
            {
                $data['msg'] = '<p class="errormsg">That category title already exists, please choose another.</p>';
            }

            else  // it does not, proceed with insert
            {
                // prepare data
                $data = array(
                   'title' => $ct
                );

                // add new page
                $this->db->insert('categories', $data);

                // show success message and add another page link
                $flag = $this->db->affected_rows();
                if ($flag == 1) 
                {
                    $data['msg'] = '<p class="successmsg">The category has been added!</p>';
                    $data['aac'] = '<br><p><a href='.base_url().'admin/add-new-category/>Add another category +</a></p>';
                }
            }

            $data['msg'] = '<p class="successmsg">The category has been added!</p>';

            // load the view        
            $this->load->view('new_category_view', $data);        

        } // end else

    }

我的阿贾克斯:

$('body').on('click', 'a.submitnewcat', function(e) {
        e.preventDefault();
        // alert('code');return;
        $('#ajaximg img').addClass('act');
        setTimeout(function() {
            $("#ajax").load('<?php echo site_url('admin/add-new-category-ajax'); ?>');
            $('#ajaximg img').removeClass('act');
        }, 200)
    });

链接到admin/add-new-category-ajax并不是一个错误,路由就是这样设置的。

为什么它总是返回失败的验证?

1 个答案:

答案 0 :(得分:0)

正如我在评论中所说,你需要一个额外的参数来使load使用POST方法而不是GET方法:

$("#ajax").load('<?php echo site_url('admin/add-new-category-ajax'); ?>', { "category_title " : "myTitle" });

如果我没错,run方法不会参数:

if ($this->form_validation->run() == FALSE)