ตัวอย่างการเขียน custom rule validation
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 | <?phpclass FormValidationCustomRules extends CI_Controller{ public function __construct() { parent::__construct(); // Your own constructor code } public function uploadJPEG() { $this->form_validation->set_rules('cover', 'JPEG Upload', 'trim|xss_clean'); if ($this->form_validation->run() == true) { $fileDir = 'assets/contents/'; $fileName = date('U') . '.jpeg'; $config = [ 'allowed_types' => 'jfi|jfif|jif|jpe|jpeg|jpg', 'file_ext_tolower' => true, 'file_name' => $fileName, 'max_size' => '10000', 'overwrite' => false, 'upload_path' => $fileDir, ]; $this->load->library('upload', $config); if ($this->upload->do_upload('cover', false)) { $this->uploadFile = $fileDir . $fileName; return true; } else { $this->form_validation->set_message('uploadJPEG', $data['error'] = $this->upload->display_errors()); if ($_FILES['cover']['error'] != 4) { return false; } } } return false; } public function index() { $this->load->library('form_validation'); $formValidation = [ [ 'field' => 'cover', 'label' => 'JPEG Upload', 'rules' => 'callback_uploadJPEG', ], ]; $this->form_validation->set_rules($formValidation); if ($this->form_validation->run() == true) { echo 'upload file to ', $this->uploadFile, '<br><img alt="', $this->uploadFile, '" class="img-thumbnail" src="../', $this->uploadFile, '">'; } $this->load->view('FormValidation/CustomRules'); }} |
หลักการคือ
- สร้าง function ขึ้นมา แล้วเรียกใช้โดยมี callback_ นำหน้า
- ส่ง message กลับมาโดยใช้ $this->form_validation->set_message(‘function name’,’ข้อความ’)