问题描述

我有一个表单要求用户上传 2 个文件，file-upload &imgupload.我正在尝试通过 ajax 保存整个表单.

I have a form that requires a user to upload 2 files, file-upload & imgupload. I am trying to save the entire form through ajax.

表单和ajax代码

<form enctype="multipart/form-data" id="data">
  <input type="file" id="file-upload" class="file-upload" name="file-upload" >
  <input type="file" id="imgupload" class="imgupload" name="imgupload"  >

  <button type="submit" id="save" class="save-icon-btn">
    <img src="<?php echo base_url(); ?>assets/img/Save.png">
  </button>
</form>

$("#save").click(function()
  {
    var form_data = new FormData($('#data')[0]);
    jQuery.ajax(
      {
        type: "POST",
        url: "<?php echo base_url(); ?>" + "comp/wfc",
        data: form_data,
        processData: false,
        contentType: false,
        success: function(res) 
          {
            console.log(res);
            alert(res);
          }
      });
  });

控制器代码

$config['upload_path'] = './assets/file/.';
$config['allowed_types'] = 'gif|jpg|png|doc|txt';
$config['max_size'] = 1024 * 8;
$config['encrypt_name'] = TRUE;

$this->load->library('upload', $config);
$this->upload->initialize($config);

if (!$this->upload->do_upload('file-upload')) 
  {
    $error = array('error' => $this->upload->display_errors());
     print_r($error);
  }
else
  {
    $data = $this->upload->data();
    echo $res = $data['file_name'];
  }


$config2['upload_path'] = './assets/img/.';
$config2['allowed_types'] = 'gif|jpg|png|doc|docx|txt';
$config2['max_size'] = 1024 * 8;
$config2['encrypt_name'] = TRUE;

$this->load->library('upload', $config2);

if (!$this->upload->do_upload('imgupload')) 
  {
    $error1 = array('error' => $this->upload->display_errors());
    print_r($error1);
  }
else
  {
    $data1 = $this->upload->data();
    echo $res1 = $data1['file_name'];
  }

问题是在控制器代码中只有 1 个文件被上传.如果我将文件上传作为第一个上传代码，那么只有这个会被上传，而 imgupload 不会被上传.

The issus is that in the controller code only 1 of the files get uploaded. If i keep file-upload as the first upload code then only this will get uploaded and imgupload will not get uploaded.

如果我将 imgupload 作为第一个上传代码，那么只有这个会被上传，而文件上传不会被上传.

And if i keep imgupload as the first upload code then only this will get uploaded and file-upload will not get uploaded.

我无法理解为什么会这样.谁能告诉我解决这个问题的方法

I am not able to understand why this is happening. Can anyone please tell a solution to this problem

推荐答案

请试试这个更新的功能.你在做一些奇怪的事情，例如初始化第一个而不是第二个.由于 CI 是单例，这可能会导致一些问题(并不是说这是根本原因).

Please try this updated function. You were doing some strange things e.g. initializing the first and not the second. As CI is a singleton, this could result in some issues (not saying that this was the root cause).

        $this->load->library('upload');

        echo '<pre>';
        print_r($_FILES);

        $config['upload_path'] = './assets/file/.';
        $config['allowed_types'] = 'gif|jpg|png|doc|txt';
        $config['max_size'] = 1024 * 8;
        $config['encrypt_name'] = TRUE;
        $this->upload->initialize($config);

        if (!$this->upload->do_upload('file-upload')) {
            $error = array('error' => $this->upload->display_errors());
            print_r($error);
        } else {
            $data = $this->upload->data();
            echo $res = $data['file_name'];
        }

        $config2['upload_path'] = './assets/img/.';
        $config2['allowed_types'] = 'gif|jpg|png|doc|docx|txt';
        $config2['max_size'] = 1024 * 8;
        $config2['encrypt_name'] = TRUE;

        $this->upload->initialize($config2, true);

        if (!$this->upload->do_upload('imgupload')) {
            $error1 = array('error' => $this->upload->display_errors());
            print_r($error1);
        } else {
            $data1 = $this->upload->data();
            echo $res1 = $data1['file_name'];
        }

如果它不起作用.请让我们知道 $_FILES 数组正在打印什么.

If it doesn't work. Please let us know what the $_FILES array is printing.

更新:

它不起作用，因为 $this->load->library('upload', $config2);.当 CI 看到 load 时，它首先检查是否加载了类，而不管传递的参数如何，因为它已经加载了这一行被忽略并且正在使用来自 $config 的设置(第一个图像上传).

It wasn't working because $this->load->library('upload', $config2);. When CI sees load it checks first if the class is loaded regardless of the parameters being passed, as it was already loaded this line was ignored and the settings from $config (the first image upload) were being used.

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