Home Backend Development PHP Tutorial Detailed example of how Yii2.0 integrates Alibaba Cloud oss ​​to delete a single file

Detailed example of how Yii2.0 integrates Alibaba Cloud oss ​​to delete a single file

Sep 20, 2017 am 09:08 AM
delete how

This article mainly introduces the method of integrating Alibaba Cloud oss ​​with yii2.0 to delete a single file. It has certain reference value. Interested friends can refer to the main ideas of

and pass it in the controller. Obtain the fileid of the file to be deleted, pass the fileid to the model's deletefile method for processing, and return the processing result.
In the deletefile method, first find the corresponding file information based on the ID, and then delete the records in the data, the files in Alibaba Cloud oss, and the local files.

The main steps are as follows:

1 First, build a view, or write an ajax to send a request. The code is omitted here (let the front end write it).

2 Receive parameters in the controller and transfer them to the model. The code reference in the controller UploadController.php is as follows:


1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

/**

   * 根据fileid删除文件

   * @return mixed 删除是否成功

   */

  public function actionDeletefile()

  {

    $res['error'] = 1;     // 准备返回数据

    Yii::$app->response->format = Response::FORMAT_JSON;  // 设置返回格式

    if (Yii::$app->request->isPost){            // 如果是post请求

      $postdata = Yii::$app->request->post('fileid',0);  // 从post里边获取文件id

 

      if ($postdata==0){                 // 如果文件id为0

        $res['errmsg'] = '删除失败,请重试';        // 准备返回数据

        return $res;                  // 返回结果

      }

      $model = new UploadForm();             // 实例化model

      $delres = $model->deletefile($postdata);      // 根据id调用deletefile方法

 

      if ($delres['error']==0){              // 如果删除成功

        $res['error'] = 0;               // 准备返回信息

      } else {

        $res['errmsg'] = $delres['errmsg'];       // 如果删除失败,准备返回信息

      }

 

    } else {

      $res['errmsg'] = '非法请求';             // 主要考虑post请求,get请求请自行修改代码

    }

 

    return $res;                      // 返回删除结果

  }

Copy after login

3 When the controller transfers the file ID to UploadForm.php, delete it in the deletefile method.


1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

/**

 * 删除阿里云oss里存储的文件和数据库里边保存到文件上传信息

 * @param $fileid  文件表里边的主键id

 * @return boolean  删除是否成功

 */

public function deletefile($fileid)

{

  $res['error'] = 1;  // 1表示默认有错误。

  $fileinfo = Yii::$app->db->createCommand('select ossfile,filePath,userid from file where id=:id')->bindParam(':id', $fileid)->queryOne();

  // 根据主键从数据库里边查询文件的信息,至少要一个服务器文件的完整路径(用来删除服务器文件)和一个ossfile的名称(删除阿里云oss里边的文件)

 

  if (count($fileinfo) > 0) {           // 如果找到了文件的记录

 

    // 这里边的验证可以更丰富一些,比如验证用户是否有权限删除该文件,文件是否属于该用户等等

 

    $ossfile = $fileinfo['ossfile'];      // 获取ossfile

    $realfile = $fileinfo['filePath'];     // 获取服务器上的文件

    $owner = $fileinfo['userid'];        // 获取上传图片用户的id

    $operator = Yii::$app->user->id;      // 获取删除图片的用户

 

    if ($owner != $operator) {         // 如果删除图片的用户不是上传的用户,报错并返回

      $res['errmsg'] = '您删除的图片不存在';

      return $res;

    }

 

    $trans = Yii::$app->db->beginTransaction(); // 开启事务

    try {

      $delstatus = Yii::$app->db->createCommand()->delete('file', 'id = ' . $fileid)->execute();

      //删除数据库里边的记录

 

      if ($delstatus) {            // 如果删除成功

        if (Yii::$app->Aliyunoss->delete($ossfile)) { //删除阿里云oss上的文件

          @unlink($realfile);       // 删除服务器上的文件

          $res['error'] = 0;       // 准备返回信息

          $trans->commit();        // 提交事务

        }

      }

      $trans->rollBack();           // 删除失败,事务回滚

    } catch (Exception $e) {          // 发生异常

      $res['errmsg'] = '删除失败';       // 准备返回信息

      $trans->rollBack();           // 事务回滚

    }

 

  } else {

    $res['errmsg'] = '图片不存在,请重试';      // 图片不存在

  }

 

  return $res;                   // 返回删除结果

}

Copy after login

The uploading and deletion of Alibaba Cloud oss ​​files has been completed.

The above is the detailed content of Detailed example of how Yii2.0 integrates Alibaba Cloud oss ​​to delete a single file. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Can the inetpub folder be deleted? How to quickly delete the inetpub folder on the C drive Can the inetpub folder be deleted? How to quickly delete the inetpub folder on the C drive Mar 13, 2024 pm 02:00 PM

It was found that there is an inetpub folder on the C drive of the computer that takes up a lot of memory. What is this inetpub folder? Can it be deleted directly? In fact, inetpub is a folder on the IIS server. The full name of IIS is Internet Information Services, which is Internet Information Services. It can be used to build and debug websites. If it is not needed, it can be uninstalled. The specific method is as follows: 1. Right-click the Start menu and select "Programs and Features". 2. After opening, click "Turn Windows features on or off". 3. In the Windows feature list, uncheck II

How to delete Xiaohongshu notes How to delete Xiaohongshu notes Mar 21, 2024 pm 08:12 PM

How to delete Xiaohongshu notes? Notes can be edited in the Xiaohongshu APP. Most users don’t know how to delete Xiaohongshu notes. Next, the editor brings users pictures and texts on how to delete Xiaohongshu notes. Tutorial, interested users come and take a look! Xiaohongshu usage tutorial How to delete Xiaohongshu notes 1. First open the Xiaohongshu APP and enter the main page, select [Me] in the lower right corner to enter the special area; 2. Then in the My area, click on the note page shown in the picture below , select the note you want to delete; 3. Enter the note page, click [three dots] in the upper right corner; 4. Finally, the function bar will expand at the bottom, click [Delete] to complete.

Is it true that you can be blocked and deleted on WeChat and permanently unable to be added? Is it true that you can be blocked and deleted on WeChat and permanently unable to be added? Apr 08, 2024 am 11:41 AM

1. First of all, it is false to block and delete someone permanently and not add them permanently. If you want to add the other party after you have blocked them and deleted them, you only need the other party's consent. 2. If a user blocks someone, the other party will not be able to send messages to the user, view the user's circle of friends, or make calls with the user. 3. Blocking does not mean deleting the other party from the user's WeChat contact list. 4. If the user deletes the other party from the user's WeChat contact list after blocking them, there is no way to recover after deletion. 5. If the user wants to add the other party as a friend again, the other party needs to agree and add the user again.

What folder is found.000? Can the found.000 folder be deleted? What folder is found.000? Can the found.000 folder be deleted? Mar 13, 2024 pm 08:52 PM

In the process of daily use of the computer, you may receive an error message that the found.000 file is lost and damaged. What folder is this found.000? Can it be deleted if it is no longer useful? Since so many people do not know this file, let me tell you about the found.000 folder in detail~ 1. What is the found.000 folder? When the computer is partially or completely lost due to illegal shutdown, , you can find the special folder named "found.000" and the files with the ".chk" extension contained inside it in the specified directory located in the system partition. This "fo

How to delete Xiaohongshu releases? How to recover after deletion? How to delete Xiaohongshu releases? How to recover after deletion? Mar 21, 2024 pm 05:10 PM

As a popular social e-commerce platform, Xiaohongshu has attracted a large number of users to share their daily life and shopping experiences. Sometimes we may inadvertently publish some inappropriate content, which needs to be deleted in time to better maintain our personal image or comply with platform regulations. 1. How to delete Xiaohongshu releases? 1. Log in to your Xiaohongshu account and enter your personal homepage. 2. At the bottom of the personal homepage, find the "My Creations" option and click to enter. 3. On the "My Creations" page, you can see all published content, including notes, videos, etc. 4. Find the content that needs to be deleted and click the "..." button on the right. 5. In the pop-up menu, select the "Delete" option. 6. After confirming the deletion, the content will disappear from your personal homepage and public page.

What is hiberfil.sys file? Can hiberfil.sys be deleted? What is hiberfil.sys file? Can hiberfil.sys be deleted? Mar 15, 2024 am 09:49 AM

Recently, many netizens have asked the editor, what is the file hiberfil.sys? Can hiberfil.sys take up a lot of C drive space and be deleted? The editor can tell you that the hiberfil.sys file can be deleted. Let’s take a look at the details below. hiberfil.sys is a hidden file in the Windows system and also a system hibernation file. It is usually stored in the root directory of the C drive, and its size is equivalent to the size of the system's installed memory. This file is used when the computer is hibernated and contains the memory data of the current system so that it can be quickly restored to the previous state during recovery. Since its size is equal to the memory capacity, it may take up a larger amount of hard drive space. hiber

How to completely delete WeChat File Transfer Assistant_Introduction to how to close WeChat File Transfer Assistant How to completely delete WeChat File Transfer Assistant_Introduction to how to close WeChat File Transfer Assistant Mar 20, 2024 pm 08:31 PM

WeChat's file transfer assistant is available to every user. Some users use it as a memo to record some things. So how to completely delete WeChat File Transfer Assistant? Let me introduce it to you in detail below. How to completely delete WeChat File Transfer Assistant? Answer: [WeChat]-[Long press File Transfer Assistant]-[Delete this chat]. Specific steps: 1. First open the WeChat software. After entering the home page, we find [File Transfer Assistant] and press and hold; 2. Then a pop-up will be marked as unread, pin the chat to the top, do not display the chat, and delete the chat. Here We can click [Delete this chat];

How to completely delete TikTok chat history How to completely delete TikTok chat history May 07, 2024 am 11:14 AM

1. Open the Douyin app, click [Message] at the bottom of the interface, and click the chat conversation entry that needs to be deleted. 2. Long press any chat record, click [Multiple Select], and check the chat records you want to delete. 3. Click the [Delete] button in the lower right corner and select [Confirm deletion] in the pop-up window to permanently delete these records.

See all articles