第一次来这里，希望不是最后一次。
我目前正在开发基于 CodeIgniter 的应用程序。一切都很好，直到我意识到（通过使用 CI 日志记录）页面视图中使用的 Uploadify 脚本多次调用控制器。
为了更好地解释......
我的新闻控制器有一个包含此代码的编辑
public function edit(){
$id = (int)$this->uri->segment(4);
if (empty($id)){
$this->session->set_flashdata('error', "ID can't be empty");
redirect('admin/news');
}
//article data called here and stored in $data
$data = $this->news_model->fetch_article($id);
$data['title'] = "News";
$data['news_links'] = $this->news_model->get_news_links();
$data['form_url'] = "admin/edit";
$data['available_pages'] = $this->news_model->get_article_pages();
$data['css'] = "/css/extra/uploadify.css";
$data['js'] = "/js/extra/jquery.uploadify-3.1.min.js";
$data['edit'] = true;
//set uploadify key
$data['key'] = md5(time() . $this->session->userdata('session_id'));
// a unique key is created, then stored in database
// the key is then passed to the uploadify script
// when the upload is being done it is checked with the one in the database
// if the two match files are uploaded. This is a workaround for flash
// session problem
$this->news_model->set_key($data['key']);
if($this->input->post('submit')){
$this->save_article("update",$id);
}
$this->load->view("admin/news",$data);
}
在我看来，我已经像这样调用 Uploadify
$('#extra_data').uploadify({
'swf' : '<?php echo site_url(); ?>flash/uploadify.swf',
'uploader' : '<?php echo site_url(); ?>admin/uploadify',
'multi' : true,
'auto' : false,
'fileTypeExts' : '*.jpg;*.jpeg;*.gif;*.png',
'fileTypeDesc' : 'Images',
'formData' : {'key' : '<?php echo $key; ?>'},
'onQueueComplete': function(){
ajax_images(); //calls a function that loads uploaded image thumbnails
}
});
编辑 - 添加 Uploadify 控制器
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Uploadify extends CI_Controller{
function __construct(){
parent::__construct();
// contains set_key / check_key / get_key / add_image functions
$this->load->model('admin/news_model');
}
public function index(){
if($this->news_model->check_key($this->input->post("key",true))){
$this->upload_image();
}else{
log_message('error', "The hash key isn't correct! No upload has been done!");
}
}
public function load_images(){
$data = $this->news_model->get_images($this->uri->segment(4));
foreach($data as $image){
?>
<div style="background:url(<?php echo site_url(); ?>images/uploads/thumb_<?php echo $image->file; ?>) no-repeat">
<a class="delete" href="javascript:void(0);" onclick="remove_pic('<?php echo site_url(); ?>admin/news/remove_picture/<?php echo $image->id; ?>')"></a>
</div>
<?php
}
}
private function upload_image($case = "article"){
$this->load->library("imaging");
$this->imaging->upload($_FILES['Filedata']);
$file_name = md5(time().$this->input->post("key"));
$target_path = $_SERVER['DOCUMENT_ROOT'] . "/images/uploads/";
if ($this->imaging->uploaded){
$this->imaging->file_new_name_body = $file_name;
$this->imaging->file_auto_rename = true;
$this->imaging->image_resize = false;
$this->imaging->mime_check = true;
$this->imaging->allowed = array('image/*');
$this->imaging->process($target_path);
$this->imaging->file_name_body_pre = 'thumb_';
$this->imaging->file_new_name_body = $file_name;
$this->imaging->image_resize = true;
$this->imaging->image_ratio_crop = true;
$this->imaging->image_y = 148;
$this->imaging->image_x = 148;
$this->imaging->process($target_path);
if ($this->imaging->processed) {
$this->news_model->add_image($this->input->post("key",true),$file_name . "." . $this->imaging->file_src_name_ext);
$handle->clean();
} else {
log_message('error', $this->imaging->error);
}
}else{
log_message('error', $this->imaging->error);
}
}
}
编辑 No2 - 添加 get/set/check 键 f-ions
function set_key($key)
{
$data['key'] = $key;
$this->db->where('id', 1);
$this->db->update('uploadify_key', $data);
log_message("debug", "Uploadify key set to " . $key);
}
function get_key($id)
{
$this->db->select('key');
$this->db->where('id', $id);
$query = $this->db->get('uploadify_key');
$row = $query->row();
return $row->key;
}
function check_key($key,$id = 1)
{
$db_key = $this->get_key($id);
if($key == $db_key)
{
return TRUE;
}
else
{
return FALSE;
}
}
function clear_key($id){
$data['key'] = "";
$this->db->where('id', $id);
$this->db->update('uploadify_key', $data);
}
function add_image($hash, $file){
$data['file'] = $file;
$data['hash'] = $hash;
$this->db->insert("images", $data);
}
function get_images($hash){
$this->db->select("id, file");
$return = $this->db->get_where("images",array("hash" => $hash));
return $return->result();
}
我的uploadify控制器有$key上面提到的检查和文件上传代码。
请注意，有 2 个控制器 - News 和 Uploadify！
问题是通过隔离代码的某些部分，我发现 Uploadify Javascript 再次调用 News 控制器。这是日志的链接 - http://pastebin.com/JkHAy5cN
发生这种情况的问题是密钥正在被重置，并且传递给 Javascript 的密钥与存储在数据库中的密钥不匹配。我被这个难住了。
任何建议、修复、评论都非常受欢迎。
谢谢！