如果用户没有输入用户名和密码并尝试点击登录,我试图显示错误消息。我试图显示错误消息,如用户名未输入和密码未输入。但它没有完美运作。
这是我的控制器:
public function login_user() {
//$this->form_validation->set_rules('username', 'Username', 'trim|required|xss_clean','required');
//$this->form_validation->set_rules('password', 'Password', 'trim|required|xss_clean','required');
if ($this->form_validation->run() == FALSE) {
$this->load->view('login_view');
} else {
$data = array(
'username' => $this->input->post('username'),
'password' => $this->input->post('password'),
'firstname' => $this->input->post('firstname'),
'lastname' => $this->input->post('lastname')
);
$result = $this->login_database->login($data);
if ($result == TRUE) {
// Add user data in session
$this->session->set_userdata('username', $data['username']);
$this->session->set_userdata('firstname', $data['firstname']);
$this->session->set_userdata('lastname', $data['lastname']);
//redirect to dashboard
$this->load->view('include/sidenavbar');
$this->load->view('include/topnavbar');
$this->load->view('dashboard');
} else {
if($data['username']=='')
{
$this->session->set_flashdata('err_message', 'Username Not Entered !');
}
$this->session->set_flashdata('err_message', 'Login is invalid. Please try again !');
$this->load->view('login_view', $data);
}
}
}
这是我的模特:
public function login($data) {
$condition = "username =" . "'" . $data['username'] . "' AND " . "password =" . "'" . $data['password'] . "'";
$this->db->select('*');
$this->db->from('users');
$this->db->where($condition);
$this->db->limit(1);
$query = $this->db->get();
if ($query->num_rows() == 1) {
return true;
} else {
return false;
}
}
查看:
<?php
if( $this->session->flashdata('err_message') )
{
echo $this->session->flashdata('err_message');
}
?>
任何人都可以帮我解决这个问题吗?
答案 0 :(得分:3)
请通过传递如下所示的数组来尝试该消息。
$this->load->library('session');
$this->session->set_flashdata('err_message', array('message' => 'Username Not Entered','class' => 'alert alert-warning'));
感谢。
答案 1 :(得分:1)
我尝试了这样,然后它的工作完美。
查看:
<?php echo form_error('username','<span class="error">','</span>'); ?>
<input type="text" name="username" placeholder="Username" />
<?php echo form_error('password','<span class="error">','</span>'); ?>
<input type="password" name="password" placeholder="Password" />
我使用form_error来显示每个字段的错误。
然后它完美地运作。