上传图片并在codeigniter中插入文本

Posted 2023-05-08

【中文标题】上传图片并在codeigniter中插入文本

【英文标题】：upload image and insert text in codeigniter

【发布时间】：2011-11-04 00:03:22

【问题描述】：

我正在尝试上传带有标题和描述的图像以及图像上传。我的图片上传和文本输入分开工作，文本和图片路径也插入到数据库中，但我仍然不知道如何将两者结合起来

我使用了http://codeigniter.com/user_guide/libraries/file_uploading.html中给出的指南

function do_upload()
    
        $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);

        if ( ! $this->upload->do_upload())
        
            $error = array('error' => $this->upload->display_errors());

            $this->load->view('upload_form', $error);
        
        else
        
            $data = array('upload_data' => $this->upload->data());

            $this->load->view('upload_success', $data);
        
    

谁能告诉我如何将一些文本字段与图像上传表单一起插入到 sql 数据库中？

【参考方案1】：

基本上只要把图片上传input放在同一个表单中，比如：

// view
echo form_open_multipart('controller_name/do_upload');
echo form_input("title", "");
echo form_input("description", "");
echo form_upload("userfile");
echo form_close

并在控制器中添加 POST 读数：

// controller
function do_upload()

    $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);

    // validate the POST data 
    // http://codeigniter.com/user_guide/libraries/form_validation.html
    $this->form_validation->set_rules('title', 'Title', 'trim|required');
    $this->form_validation->set_rules('description', 'Description', 'trim|required')

    if ($this->form_validation->run() == FALSE)
       
        // failed validation
        $this->load->view('myform');

        // quit here
        return false;
    

    if ( ! $this->upload->do_upload())
    
        // no file uploaded or failed upload
        $error = array('error' => $this->upload->display_errors());
        $this->load->view('upload_form', $error);
    
    else
    
        // success
        $data = array('upload_data' => $this->upload->data());
        $title = $this->input->post('title');
        $description = $this->input->post('description');

        // a model that deals with your image data (you have to create this)
        $this->your_upload_model->add($title, $description, $data["file_name"]);

        $this->load->view('upload_success', $data);
    

您还需要建立一个合适的模型来将数据输入数据库。

【讨论】：

你好@Woxxy 不错的答案。但是如果图像上传是可选的更新怎么办。在那种情况下该怎么办？