$this->input->post('photo')
在模型中将无法检索图像信息。因为图像存储在 $_FILES 中而不是 $_POST 中。所以你需要使用上传库 http://www.codeigniter.com/user_guide/libraries/file_uploading.html在 codeigniter 中,如下所示。
在控制器中:
public function update_profile() {
$id = $this->session->userdata('id');
$this->load->model('edit_profile_model');
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '100';
$config['max_width'] = '1024';
$config['max_height'] = '768';
$this->load->library('upload', $config);
$this->upload->do_upload();//upload the file to the above mentioned path
$this->edit_profile_model->update_db_user_info($id, $this->upload->data());// pass the uploaded information to the model
}
在模型中:
public function update_db_user_info($id, $imgdata) {
$imgdata = file_get_contents($imgdata['full_path']);//get the content of the image using its path
$data = array(
'fullname' => $this->input->post('fullname'),
'address' => $this->input->post('address'),
'state' => $this->input->post('state'),
'city' => $this->input->post('city'),
'pincode' => $this->input->post('pincode'),
'image' => $imgdata,
);
$this->db->where('id', $id);
$this->db->update('userdetails', $data);
}
要检索图像,请在模型中编写一个函数,如下所示。
public function get_image($id){
$this->db->where('id', $id);
$result = $this->db->get('userdetails');
header("Content-type: image/jpeg");
echo $result['image'];
}
存储图像并从数据库检索也不是一个好习惯。相反,尝试将图像存储在文件夹中并将路径存储在数据库中,如下所示。
在模型中:
public function update_db_user_info($id, $imgdata) {
$imgdata = $imgdata['full_path'];// get the path of the image
$data = array(
'fullname' => $this->input->post('fullname'),
'address' => $this->input->post('address'),
'state' => $this->input->post('state'),
'city' => $this->input->post('city'),
'pincode' => $this->input->post('pincode'),
'image' => $imgdata,// change the type of image from blob to varchar or text
);
$this->db->where('id', $id);
$this->db->update('userdetails', $data);
}