文件上传在cakephp 2.3 [英] file upload in cakephp 2.3

问题描述

我是cakephp新的，我试图用cakephp 2.3创建一个简单的文件上传这里是我的控制器

I'm new in cakephp and i'm trying to create a simple file upload with cakephp 2.3 here is my controller

public function add() {
    if ($this->request->is('post')) {
        $this->Post->create();
           $filename = WWW_ROOT. DS . 'documents'.DS.$this->data['posts']['doc_file']['name']; 
           move_uploaded_file($this->data['posts']['doc_file']['tmp_name'],$filename);  


        if ($this->Post->save($this->request->data)) {
            $this->Session->setFlash('Your post has been saved.');
            $this->redirect(array('action' => 'index'));
        } else {
            $this->Session->setFlash('Unable to add your post.');
        }
     }
 }

和我的add.ctp

and my add.ctp

echo $this->Form->create('Post');
echo $this->Form->input('firstname');
echo $this->Form->input('lastname');
echo $this->Form->input('keywords');
echo $this->Form->create('Post', array( 'type' => 'file'));
echo $this->Form->input('doc_file',array( 'type' => 'file'));
echo $this->Form->end('Submit')

保存firstname，lastname，关键字和文件在DB中的名称，但我想保存在app / webroot /文件中的文件不保存，任何人都可以帮助？感谢

it saves firstname, lastname, keywords, and the name of the file in DB , but the file which i want to save in app/webroot/documents is not saving , can anyone help ? Thanks

更新

thaJeztah我u说，但它给一些错误这里是控制器如果我没有错误

thaJeztah i did as u said but it gives some errors here is controller if i'm not wrong

public function add() {
     if ($this->request->is('post')) {
         $this->Post->create();
            $filename = WWW_ROOT. DS . 'documents'.DS.$this->request->data['Post']['doc_file']['name']; 
           move_uploaded_file($this->data['posts']['doc_file']['tmp_name'],$filename);



         if ($this->Post->save($this->request->data)) {
             $this->Session->setFlash('Your post has been saved.');
             $this->redirect(array('action' => 'index'));
         } else {
            $this->Session->setFlash('Unable to add your post.');
         }
     }

 }

和我的add.ctp

and my add.ctp

 echo $this->Form->create('Post', array( 'type' => 'file'));
 echo $this->Form->input('firstname'); echo $this->Form->input('lastname');
 echo $this->Form->input('keywords');
 echo $this->Form->input('doc_file',array( 'type' => 'file'));
 echo $this->Form->end('Submit') 

并且错误是

and the errors are

注意（8）：数组到字符串转换
[CORE\Cake\Model\Datasource\\ \\ DboSource.php，line 1005]

Notice (8): Array to string conversion [CORE\Cake\Model\Datasource\DboSource.php, line 1005]

数据库错误错误：SQLSTATE [42S22]：未找到列：1054未知
列'数组' '

Database Error Error: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'Array' in 'field list'

SQL查询：INSERT INTO first.posts（firstname，lastname，keywords，
doc_file）VALUES（'dfg'，'cbhcfb'，'dfdbd' ，Array）

SQL Query: INSERT INTO first.posts (firstname, lastname, keywords, doc_file) VALUES ('dfg', 'cbhcfb', 'dfdbd', Array)

和Victor我也是你的版本，它也不工作。

and Victor i did your version too , it doesnt work too .

推荐答案

您似乎使用错误的钥匙访问已发布的数据;

You seem to be using the wrong 'key' to access the posted data;

$this->data['posts'][....

匹配你的'别名'模型; 单数和第一个字母

Should match the 'alias' of you Model; singular and a captial first letter

$this->data['Post'][....

此外， $ this- > data 是 $ this-> request-> data 的向后兼容性的包装，因此最好使用此方法; p>

Also, $this->data is a wrapper for $this->request->data for backwards compatibility, so it's better to use this;

$this->request->data['Post'][...

要检查已发布数据的内容并了解其结构，您可以使用此来调试它;

To check the content of the posted data and understand how it's structured, you may debug it using this;

debug($this->request);

只要确保启用调试，通过设置 debug 到 1 或 2 里面 app / Config / core.php

Just be sure to enable debugging, by setting debug to 1 or 2 inside app/Config/core.php

我注意到您也在代码中创建多个（嵌套）表单;

I just noticed you're also creating multiple (nested) forms in your code;

echo $this->Form->input('keywords');

// This creates ANOTHER form INSIDE the previous one!
echo $this->Form->create('Post', array( 'type' => 'file'));

echo $this->Form->input('doc_file',array( 'type' => 'file'));

嵌套表单将永远不会工作，删除该行并添加'类型=> file'到第一个 Form-> create（）

Nesting forms will never work, remove that line and add the 'type => file' to the first Form->create()

数组到字符串转换问题是由于你试图直接使用您的数据库的doc_file的数据。因为这是一个文件上传字段，'doc_file'将包含一个数据（'name'，'tmp_name'等）。

The "Array to string conversion" problem is cause by the fact that you're trying to directly use the data of 'doc_file' for your database. Because this is a file-upload field, 'doc_file' will contain an Array of data ('name', 'tmp_name' etc.).

对于您的数据库，您只需要该数组的名称，所以您需要修改数据，然后将其保存到数据库。

For your database, you only need the 'name' of that array so you need to modify the data before saving it to your database.

以这种方式 ;

// Initialize filename-variable
$filename = null;

if (
    !empty($this->request->data['Post']['doc_file']['tmp_name'])
    && is_uploaded_file($this->request->data['Post']['doc_file']['tmp_name'])
) {
    // Strip path information
    $filename = basename($this->request->data['Post']['doc_file']['name']); 
    move_uploaded_file(
        $this->data['Post']['doc_file']['tmp_name'],
        WWW_ROOT . DS . 'documents' . DS . $filename
    );
}

// Set the file-name only to save in the database
$this->data['Post']['doc_file'] = $filename;

这篇关于文件上传在cakephp 2.3的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！