Codeigniter - 表单验证运行，但不会在 FALSE 上显示错误

Question

我遇到了表单验证的情况。对于如此简单的事情，我似乎无法弄清楚我的问题出在哪里，并且我在网上搜索了很长时间。如果返回 FALSE ，我的表单留空时应该form_error为每个字段抛出错误form_validation。但是，没有任何反应。当表单完全填写时，它会很好地插入到数据库中。我被困住了，我似乎无法弄清楚解决方案是什么。我的想法是代码在某处有拼写错误或表单设计不正确。这是我的控制器：function create_job()    {        // validate each form field        $this->form_validation->set_rules('repair_order', 'Repair Order', 'required');        $this->form_validation->set_rules('first_name', 'First Name', 'trim|required');        $this->form_validation->set_rules('last_name', 'Last Name', 'trim|required');        $this->form_validation->set_rules('phone', 'Phone', 'required');        $this->form_validation->set_rules('vin', 'VIN', 'trim|required');        $this->form_validation->set_rules('year', 'Vehicle Year', 'trim|required|min_length[4]');        $this->form_validation->set_rules('make', 'Vehicle Make', 'required');        $this->form_validation->set_rules('model', 'Vehicle Model', 'required');        $this->form_validation->set_rules('start_date', 'Start Date', 'required');        $this->form_validation->set_rules('promise_date', 'Promise Date', 'required');        $this->form_validation->set_rules('body_hours', 'Body Labor Hours', 'required');        $this->form_validation->set_rules('paint_hours', 'Paint Labor Hours', 'required');        $this->form_validation->set_rules('body_tech', 'Body Technician', 'required');        $this->form_validation->set_rules('paint_tech', 'Paint Technician', 'required');                );                $this->db->insert('jobs', $data);                $this->session->set_flashdata("success", "New job has been successfully created.");                redirect('main');            }            else            {                redirect('jobs/new');            }    }我是 CodeIgniter 的新手，只是想学习。如果有人能看到问题出在哪里并能指导我找到答案，我将不胜感激。

Answer 1

您的重定向不会传递 form_error 消息。您需要加载一个视图（您的表单）才能调用 form_error 使用$this->load->view()

尝试这个：

function create_job()

{

    // validate each form field

    $this->form_validation->set_rules('repair_order', 'Repair Order', 'required');

    $this->form_validation->set_rules('first_name', 'First Name', 'trim|required');

    $this->form_validation->set_rules('last_name', 'Last Name', 'trim|required');

    $this->form_validation->set_rules('phone', 'Phone', 'required');

    $this->form_validation->set_rules('vin', 'VIN', 'trim|required');

    $this->form_validation->set_rules('year', 'Vehicle Year', 'trim|required|min_length[4]');

    $this->form_validation->set_rules('make', 'Vehicle Make', 'required');

    $this->form_validation->set_rules('model', 'Vehicle Model', 'required');

    $this->form_validation->set_rules('start_date', 'Start Date', 'required');

    $this->form_validation->set_rules('promise_date', 'Promise Date', 'required');

    $this->form_validation->set_rules('body_hours', 'Body Labor Hours', 'required');

    $this->form_validation->set_rules('paint_hours', 'Paint Labor Hours', 'required');

    $this->form_validation->set_rules('body_tech', 'Body Technician', 'required');

    $this->form_validation->set_rules('paint_tech', 'Paint Technician', 'required');

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

        {

            $data = array(

            'repair_order'      => $this->input->post('repair_order'),

            'first_name'        => $this->input->post('first_name'),

            'last_name'         => $this->input->post('last_name'),

            'address'           => $this->input->post('address'),

            'city'              => $this->input->post('city'),

            'state'             => $this->input->post('state'),

            'zip_code'          => $this->input->post('zip_code'),

            'phone'             => $this->input->post('phone'),

            'vin'               => $this->input->post('vin'),

            'year'              => $this->input->post('year'),

            'make'              => $this->input->post('make'),

            'model'             => $this->input->post('model'),

            'start_date'        => $this->input->post('start_date'),

            'promise_date'      => $this->input->post('promise_date'),

            'body_hours'        => $this->input->post('body_hours'),

            'paint_hours'       => $this->input->post('paint_hours'),

            'insurance'         => $this->input->post('insurance'),

            'body_tech'         => $this->input->post('body_tech'),

            'paint_tech'        => $this->input->post('paint_tech')

            );

            $this->db->insert('jobs', $data);

            $this->session->set_flashdata("success", "New job has been successfully created.");

            redirect('main');

        }

        else

        {

            $this->load->view('yournewjobform');

        }

}