Codeigniter上传PDF问题 [英] Codeigniter upload PDF problem

问题描述

我使用codeigniter上传库上载PDF，如果用户正在添加新闻，则上传PDF，同样的表单用于添加新文章。这两者之间的区别在于新闻稿需要PDF，但是新闻文章没有。然而，当我提交我的表单而没有将PDF添加到上传字段时，我得到一个错误

您没有选择要上传的文件

我怎样才能做到这一点，所以我没有上传文件？

  function add（） 
 {
 
 $ data = array（）; 
 //设置一些验证规则
 
 $ this-> form_validation-> set_rules（'headline'，'headline'，'required | trim'）; 
 $ this-> form_validation-> set_rules（'tagline'，'tagline'，'trim'）; 
 $ this-> form_validation-> set_rules（'userfile'，'userfile'，'trim'）; 
 $ this-> form_validation-> set_rules（'article'，'article'，'required | trim | htmlspecialchars'）; 
如果（$这 - > form_validation->运行（）== FALSE）
 {
 $这 - >负载>查看（ '模板/ admin_header.php'， $的数据）; 
 $ this-> load-> view（'admin / news / add'）; 
 $ this-> load-> view（'templates / footer.php'）; 
} 
 else 
 {
 //验证已通过，我们保存数据，如果存在数据，我们可以上传PDF 
（$ this- > input-> post（'userfile'）！=）
 {
 $ config ['upload_path'] ='./assets/doc/'; 
 $ config ['allowed_types'] ='pdf'; 
 $ config ['max_size'] ='5000'; 
 
 $ this-> load->库（'upload'，$ config）; 
 $ b $ if if（！$ this-> upload-> do_upload（））
 {
 //如果我们要显示一个问题，请尝试上传表单和错误
 $ data ['error'] = array（'upload_error'=> $ this-> upload-> display_errors（））; 
 // die（print_r（$ data，'upload'））; 
 $ this-> load-> view（'templates / admin_header.php'，$ data）; 
 $ this-> load-> view（'admin / news / add'，$ data）; 
 $ this-> load-> view（'templates / footer.php'）; 
 
 
 
 
 // everyhting已经很好了文件已经上传，所以我们可以继续和创建一个POST数据数组和文件名
 //保存在数据库中。 
 // $ file = $ this-> upload-> data（）; 
 $ insertData =阵列（
 '标题'=> $这 - >输入 - >柱（ '标题'），
 '标语'=> $这 - >输入 - >后（'标语'），
 //'pdf'=> // $ file ['file_name']，
'article'=> $ this-> input- >帖子（'article'）
）; 
 
 $ this-> load-> model（'newsArticles'）; 
 $ this-> session-> set_flashdata（'sucess'，'您的新闻文章已成功保存'）; 
重定向（'/ admin / dashboard'，'重定向'）; 
} 
 
} 
 
 
 
} 
  

解决方案

错误只是说你没有选择一个文件，你没有。当我这样做，我只是忽略然后错误，并继续前进。

但有点更整洁的方式将使用类似：

'pre> 如果（isset（$ _ FILES [ 'userfile的']））{
//上传文件
$这 - > upload-> ; do_upload（）;
//检查错误等
} else {
//什么也不做
}


I am uploading a PDF using the codeigniter upload library, the PDF is uploaded if the user is adding a press, the same form is used to add a new article. This difference between the two is that a press release needs a PDF, but a news article does not.

However when I submit my form without add PDF to the upload field, I get an error

you did not select a file to upload

How can I make it so I don't have upload a file?

function add ()
{

    $data = array();
    //set some validation rules

    $this->form_validation->set_rules('headline', 'headline', 'required|trim');
    $this->form_validation->set_rules('tagline', 'tagline', 'trim');
    $this->form_validation->set_rules('userfile', 'userfile', 'trim');
    $this->form_validation->set_rules('article', 'article', 'required|trim|htmlspecialchars');
    if ($this->form_validation->run() == FALSE)
    {
        $this->load->view('templates/admin_header.php', $data);
        $this->load->view('admin/news/add');
        $this->load->view('templates/footer.php');
    }
    else
    {
        //validation has been passed and we save the data and if there is one present we can upload the PDF
        if($this->input->post('userfile') != "")
        {
            $config['upload_path'] = './assets/doc/';
            $config['allowed_types'] = 'pdf';
            $config['max_size'] = '5000';

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

            if(!$this->upload->do_upload())
            {
                //try and do the upload if there is a problem we are going to show the form and an error
                $data['error'] = array('upload_error' => $this->upload->display_errors()); 
                //die(print_r($data, 'upload'));
                $this->load->view('templates/admin_header.php', $data);
                $this->load->view('admin/news/add', $data);
                $this->load->view('templates/footer.php');
            }
        }
        else
        {
            //everyhting has gone well the file has been upload so we can carry on and create an array of the POST data and the filename
            //to save in the database.
            //$file = $this->upload->data();
            $insertData = array(
                'headline' => $this->input->post('headline'),
                'tagline' => $this->input->post('tagline'),
                //'pdf' => //$file['file_name'],
                'article' => $this->input->post('article')
            );

            $this->load->model('newsArticles');
            $this->session->set_flashdata('sucess', 'Your news article was successfully saved');
            redirect('/admin/dashboard', 'redirect');
        }

    }



}

解决方案

The error just says you didn't pick a file, which you didn't. When I do this, I just ignore then error and keep going.

but a bit tidier way would be to use something like:

if (isset($_FILES['userfile'])) {
    // upload the file 
    $this->upload->do_upload();
    // check errors etc
} else {
    // do nothing
}

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