找不到Cakephp事件监听器

Question

我使用Cakephp 3.2和proffer插件上传图像。

默认情况下，图像的路径如下

/media/files/<tablename>/<primary_key>/<filename>

每当在同一个表中插入新行时，就会根据其主键创建一个新文件夹。

我想上传一个表的所有图像到同一目录。表示像

这样的路径

/media/files/<tablename>/<filename>

我正在使用事件监听器，按照提供的文档。

这是我的SellersTable.php

<?php
namespace AppModelTable;
use CakeORMQuery;
use CakeORMRulesChecker;
use CakeORMTable;
use CakeValidationValidator;
use CakeEventEvent;
class SellersTable extends Table
{
    /**
     * Initialize method
     *
     * @param array $config The configuration for the Table.
     * @return void
     */
    public function initialize(array $config)
    {
        parent::initialize($config);
        $listener = new AppEventUploadFileNameListener(); // line 23
        $this->eventManager()->on($listener);
        $this->table('sellers');
        $this->displayField('id');
        $this->primaryKey('id');
        $this->addBehavior('Timestamp');
        $this->addBehavior('Proffer.Proffer', [
            'profile_picture' => [
                'root' => Configure::read('ArgoSystems.media.upload') . DS . 'files',
                'dir' => 'dir'
            ]
        ]);
    }
    /**
     * Default validation rules.
     *
     * @param CakeValidationValidator $validator Validator instance.
     * @return CakeValidationValidator
     */
    public function validationDefault(Validator $validator)
    {
        $validator
            ->integer('id')
            ->allowEmpty('id', 'create');
        $validator
            ->requirePresence('first_name', 'create')
            ->notEmpty('first_name');
        $validator
            ->requirePresence('last_name', 'create')
            ->notEmpty('last_name');
        $validator
            ->email('email')
            ->requirePresence('email', 'create')
            ->notEmpty('email')
            ->add('email', 'unique', ['rule' => 'validateUnique', 'provider' => 'table']);
        $validator->provider('proffer', 'ProfferModelValidationProfferRules');
        $validator
            ->add('profile_picture', 'proffer', [
              'rule' => ['dimensions', [
                'min' => ['w' => 100, 'h' => 500],
                'max' => ['w' => 100, 'h' => 500],
                ]],
                'message' => 'Image must be of 100 x 500 resolution',
                'provider' => 'proffer'
            ])
            ->requirePresence('profile_picture', 'create')
            ->allowEmpty('profile_picture','update');
        $validator
            ->requirePresence('password', 'create')
            ->notEmpty('password');
        return $validator;
    }
    public function buildRules(RulesChecker $rules)
    {
        $rules->add($rules->isUnique(['email']));
        return $rules;
    }
}

在src/Event/

中创建UploadFileNameListener.php

<?php
namespace AppEvent;
use CakeEventEvent;
use CakeEventEventListenerInterface;
use CakeUtilityInflector;
use ProfferLibProfferPath;
class UploadFileNameListener implements EventListenerInterface
{
    public function implementedEvents()
    {
        return [
            'Proffer.afterPath' => 'change',
        ];
    }
    /**
     * Rename a file and change it's upload folder before it's processed
     *
     * @param Event $event The event class with a subject of the entity
     * @param ProfferPath $path
     * @return ProfferPath $path
     */
    public function change(Event $event, ProfferPath $path)
    {
        // Detect and select the right file extension
        switch ($event->subject()->get('image')['type']) {
            default:
            case "image/jpeg":
                $ext = '.jpg';
                break;
            case "image/png":
                $ext = '.png';
                break;
            case "image/gif":
                $ext = '.gif';
                break;
        }
        // Create a new filename using the id and the name of the entity
        $newFilename = $event->subject()->get('id') . '_' . Inflector::slug($event->subject()->get('name')) . $ext;
        // set seed
        $path->setSeed('profile_picture');
        // Change the filename in both the path to be saved, and in the entity data for saving to the db
        $path->setFilename($newFilename);
        $event->subject('image')['name'] = $newFilename;
        // Must return the modified path instance, so that things are saved in the right place
        return $path;
    }
}

但是这会给出致命错误

错误:未捕获的错误:类'AppModelTableAppEventUploadFileNameListener'未找到/var/www/html/projects/admin/src/Model/Table/SellersTable.php: 23日

Answer 1

从错误消息中可以清楚地看出，它试图用相对于当前类的名称空间的名称空间加载类。试着

$listener = new AppEventUploadFileNameListener();