我正在尝试在cakephp上创建一个文件上传，我还没有能够为cakephp 3.0找到任何体面的教程，详细介绍，我不知道如何安装插件。
我在添加部分
中有这个/**
* Index method
*
* @return void
*/
public function index()
{
$this->paginate = [
'contain' => ['Courses']
];
$this->set('contents', $this->paginate($this->Contents));
$this->set('_serialize', ['contents']);
}
/**
* View method
*
* @param string|null $id Content id.
* @return void
* @throws \Cake\Network\Exception\NotFoundException When record not found.
*/
public function view($id = null)
{
$content = $this->Contents->get($id, [
'contain' => ['Courses']
]);
$this->set('content', $content);
$this->set('_serialize', ['content']);
}
/**
* Add method
*
* @return void Redirects on successful add, renders view otherwise.
*/
public function add()
{
$content = $this->Contents->newEntity();
if ($this->request->is('post')) {
$content = $this->Contents->patchEntity($content, $this->request->data);
if ($this->Contents->save($content)) {
$this->Flash->success('The content has been saved.');
return $this->redirect(['action' => 'index']);
} else {
$this->Flash->error('The content could not be saved. Please, try again.');
}
}
$courses = $this->Contents->Courses->find('list', ['limit' => 200]);
$this->set(compact('content', 'courses'));
$this->set('_serialize', ['content']);
}
/**
* Edit method
*
* @param string|null $id Content id.
* @return void Redirects on successful edit, renders view otherwise.
* @throws \Cake\Network\Exception\NotFoundException When record not found.
*/
public function edit($id = null)
{
$content = $this->Contents->get($id, [
'contain' => []
]);
if ($this->request->is(['patch', 'post', 'put'])) {
$content = $this->Contents->patchEntity($content, $this->request->data);
if ($this->Contents->save($content)) {
$this->Flash->success('The content has been saved.');
return $this->redirect(['action' => 'index']);
} else {
$this->Flash->error('The content could not be saved. Please, try again.');
}
}
$courses = $this->Contents->Courses->find('list', ['limit' => 200]);
$this->set(compact('content', 'courses'));
$this->set('_serialize', ['content']);
}
/**
* Delete method
*
* @param string|null $id Content id.
* @return void Redirects to index.
* @throws \Cake\Network\Exception\NotFoundException When record not found.
*/
public function delete($id = null)
{
$this->request->allowMethod(['post', 'delete']);
$content = $this->Contents->get($id);
if ($this->Contents->delete($content)) {
$this->Flash->success('The content has been deleted.');
} else {
$this->Flash->error('The content could not be deleted. Please, try again.');
}
return $this->redirect(['action' => 'index']);
}
我还没有在控制器中添加任何东西
Type但在此之后不知道该怎么做。
答案 0 :(得分：0)
首先，您需要决定何时处理上传。我设法使用beforeMarshal方法和afterSave方法创建一个肮脏（但工作）的方法（我将在最后解释为什么这两个）。
如果您创建文件输入，请执行以下操作：
<?= $this->Form->file('submittedfile', ['class' => 'form-control input-upload', 'style' => 'height:100px']) ?>
或hasMany关联：
<?= $this->Form->file('images.'.$i.'.submittedfile', ['class' => 'form-control input-upload', 'style' => 'height:100px']) ?>
并定义正确的关联：
$this->hasMany('Images', [
'foreignKey' => 'model_id'
]);
您可以在修补并保存实体之前处理这些文件：
public function beforeMarshal(Event $event, \ArrayObject $data, \ArrayObject $options) {
$images = array();
$dir = md5(time().$data['name']);
for ($i = 0; $i < count($data['images']); $i++) {
$image = $data['images'][$i]['submittedfile'];
if (!empty($image['name'])) {
if(!isset($data['id'])) {
$data['temp_dir'] = $dir;
}
else {
$dir = $data['id'];
}
if ($this->Images->uploadFile(array('img', 'model', $dir), $image) === true) {
$images[] = array('name' => pathinfo($image['name'], PATHINFO_FILENAME), 'ext' => pathinfo($image['name'], PATHINFO_EXTENSION));
}
}
}
$data['images'] = $images;
}
这当然是一个例子。我已经决定检查，如果在实体上设置了ID属性（比如编辑），因为如果它没有（比如创建），你必须以某种方式识别正确的路径
您已获得文件上传功能：
public function uploadDir($path = array()) {
return $this->wwwRoot . implode(DS, $path);
}
public function uploadFile($path = array(), $filetoupload = null) {
if (!$filetoupload) {
return false;
}
$dir = new Folder($this->uploadDir($path), true, 755);
$tmp_file = new File($filetoupload['tmp_name']);
if (!$tmp_file->exists()) {
return false;
}
$file = new File($dir->path . DS . $filetoupload['name']);
if (!$tmp_file->copy($dir->pwd() . DS . $filetoupload['name'])) {
return false;
}
$file->close();
$tmp_file->delete();
return true;
}
如果您在没有包含主要实体ID的子目录时添加了图像，则必须在获得ID后立即重命名该目录：
public function afterSave(Event $event, Entity $entity, \ArrayObject $options) {
if(!empty($entity->temp_dir)) {
$this->Images->renameFolder(array('img', 'model', $entity->temp_dir),$entity->id);
}
}
主叫：
public function renameFolder($path = array(), $newName) {
$oldPath = $this->wwwRoot . implode(DS, $path);
$nameToChange = array_pop($path);
array_push($path, $newName);
$newPath = $this->wwwRoot . implode(DS, $path);
return rename($oldPath, $newPath);
}