教义2.0 /一对多：多对一

编程问答 2022-04-26

问题描述

|| 我尝试在Doctrine 2.0中设置一对多/多对一实体关联。 因为我需要关联表user_message中的字段“ read”，所以我有3个实体。 User.PHP 
namespace Console\\Entity;

use Doctrine\\Common\\Collections\\ArrayCollection;

/**
 * @Entity(repositoryClass=\"Console\\Repository\\User\")
 * @Table(name=\"user\")
 */
class User {

    /**
     * @Id 
     * @GeneratedValue 
     * @Column(type=\"integer\")
     */
    protected $id;

    /**
     * @OnetoMany(targetEntity=\"Message\",mappedBy=\"users\",cascade={\"all\"},orphanRemoval=true)
     * @JoinTable(name=\"user_message\",*      joinColumns={@JoinColumn(name=\"user_id\",referencedColumnName=\"id\")},*      inverseJoinColumns={@JoinColumn(name=\"message_id\",referencedColumnName=\"id\",unique=true)}
     * )
     */
    protected $messages;

    public function __construct(){
        $this->messages = new ArrayCollection();
    }

    public function addMessage(Message $message){
        $message->addUser($this);
        $this->messages[] = $message;
    }

}
Message.PHP 
namespace Console\\Entity;

use Doctrine\\Common\\Collections\\ArrayCollection;

/**
 * @Entity(repositoryClass=\"Console\\Repository\\Message\")
 * @Table(name=\"message\")
 */
class Message {

    /**
     * @Id 
     * @GeneratedValue 
     * @Column(type=\"integer\")
     */
    protected $id;

    /**
     * @Column(type=\"text\")
     */
    protected $value;

    /**
     * @OnetoMany(targetEntity=\"User\",mappedBy=\"messages\",unique=true)}
     * )
     */
    protected $users;

    public function __construct(){
        $this->users = new ArrayCollection();
    }

    /**
     * @param Console\\Entity\\User $user 
     */
    public function addUser(User $user){
        $this->users[] = $user;
    }

}
UserMessage.PHP 
namespace Console\\Entity;

/**
 * @Entity
 * @Table(name=\"user_message\")
 */
class UserMessage {

    /**
     * @Id 
     * @GeneratedValue 
     * @Column(type=\"integer\")
     */
    protected $id;

    /**
     * @Column(name=\"user_id\",type=\"integer\")
     */
    protected $userId;

    /**
     * @Column(name=\"message_id\",type=\"integer\")
     */
    protected $messageId;

    /**
     * @Column(name=\"is_read\",type=\"boolean\")
     */
    protected $isRead;

    public function isRead(){
        return $this->isRead;
    }

    public function setIsRead($flag = true){
        $this->isRead = (bool)$flag;
    }

}
dump.sql（从原则生成） 
CREATE TABLE IF NOT EXISTS `message` (
  `id` int(11) NOT NULL AUTO_INCREMENT,`type_id` int(11) DEFAULT NULL,`value` longtext NOT NULL,`created` datetime NOT NULL,PRIMARY KEY (`id`),KEY `IDX_B6BD307FC54C8C93` (`type_id`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=3 ;

CREATE TABLE IF NOT EXISTS `user` (
  `id` int(11) NOT NULL AUTO_INCREMENT,`ip_id` int(11) DEFAULT NULL,`username` varchar(50) NOT NULL,`password` varchar(64) NOT NULL,`last_action` datetime DEFAULT NULL,UNIQUE KEY `UNIQ_8D93D649F85E0677` (`username`),UNIQUE KEY `UNIQ_8D93D649A03F5E9F` (`ip_id`)
) ENGINE=InnoDB  DEFAULT CHARSET=utf8 AUTO_INCREMENT=2 ;

CREATE TABLE IF NOT EXISTS `user_message` (
  `id` int(11) NOT NULL AUTO_INCREMENT,`user_id` int(11) NOT NULL,`message_id` int(11) NOT NULL,`is_read` tinyint(1) NOT NULL,PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;


ALTER TABLE `message`
  ADD CONSTRAINT `message_ibfk_1` FOREIGN KEY (`type_id`) REFERENCES `message_type` (`id`);

ALTER TABLE `user`
  ADD CONSTRAINT `user_ibfk_1` FOREIGN KEY (`ip_id`) REFERENCES `ip` (`id`);
现在我的测试： 
$user = $em->find(\'Console\\Entity\\User\',1);

$message = new Console\\Entity\\Message();
$message->setValue(\'TestNachricht\');

$user->addMessage($message);

$em->persist($user);
$em->flush();
发生了什么：消息表已填写，user_message为空。 我如何使用user_message表并将我的邮件设置为“已读”？ 感谢帮助     

解决方法

我懂了： Message.php 
namespace Console\\Entity;

use Doctrine\\Common\\Collections\\ArrayCollection;

/**
 * @Entity(repositoryClass=\"Console\\Repository\\Message\")
 * @Table(name=\"message\")
 * @HasLifecycleCallbacks
 */
class Message {

    /**
     * @Id 
     * @GeneratedValue 
     * @Column(type=\"integer\")
     */
    protected $id;

    /**
     * @Column(type=\"text\")
     */
    protected $value;

    /**
     * @ManyToOne(targetEntity=\"Console\\Entity\\MessageType\",cascade={\"persist\"})
     */
    protected $type;

    /**
     * @OneToMany(targetEntity=\"Console\\Entity\\UserMessage\",mappedBy=\"message\",cascade={\"all\"},orphanRemoval=true)
     */
    protected $userMessages;

    /**
     * @Column(type=\"datetime\")
     */
    protected $created;

    /**
     * @param Console\\Entity\\MessageType $type
     * @param string $value
     */
    public function __construct(MessageType $type,$value){
        $this->type         = $type;
        $this->value        = $value;
        $this->userMessages = new ArrayCollection();
    }

    /** @PrePersist */
    public function prePersist(){
        $this->created = new \\DateTime(\"now\");
    }

    /**
     * @return int 
     */
    public function getId(){
        return $this->id;
    }

    /**
     * @return string 
     */
    public function getValue(){
        return $this->value;
    }

    /**
     * @return Console\\Entity\\MessageType 
     */
    public function getType(){
        return $this->type;
    }

}
User.php 
namespace Console\\Entity;

use Doctrine\\Common\\Collections\\ArrayCollection;
use Console\\Resource\\Resource;

/**
 * @Entity(repositoryClass=\"Console\\Repository\\User\")
 * @Table(name=\"user\")
 * @HasLifecycleCallbacks
 */
class User implements Resource {

    /**
     * @Id 
     * @GeneratedValue 
     * @Column(type=\"integer\")
     */
    protected $id;

    /**
     * @Column(type=\"string\",length=50,unique=true)
     */
    protected $username;

    /**
     * @Column(type=\"string\",length=64)
     */
    protected $password;

    /**
     * @OneToOne(targetEntity=\"Console\\Entity\\Ip\",orphanRemoval=true)
     */
    protected $ip = null;

    /**
     * @OneToMany(targetEntity=\"Console\\Entity\\UserMessage\",mappedBy=\"sender\",orphanRemoval=true)
     */
    protected $sentMessages;

    /**
     * @OneToMany(targetEntity=\"Console\\Entity\\UserMessage\",mappedBy=\"receiver\",orphanRemoval=true)
     */
    protected $receivedMessages;

    /**
     * @Column(type=\"datetime\")
     */
    protected $created;

    /**
     * @Column(type=\"datetime\",name=\"last_action\",nullable=true)
     */
    protected $lastAction;

    public function __construct($username,$password){
        $this->username         = $username;
        $this->password         = hash_hmac(self::PASSWORD_ALGO,$password,self::PASSWORD_SALT);
        $this->sentMessages     = new ArrayCollection();
        $this->receivedMessages = new ArrayCollection();
    }

    /** @PreUpdate */
    public function preUpdate(){
        $this->lastAction = new \\DateTime(\"now\");
    }

    /** @PrePersist */
    public function prePersist(){
        $this->created = new \\DateTime(\"now\");
    }

    /**
     * @return int 
     */
    public function getId(){
        return $this->id;
    }

    /**
     * @return string 
     */
    public function getUsername(){
        return $this->username;
    }

    /**
     * @return string 
     */
    public function getPassword(){
        return $this->password;
    }

    /**
     * @return Console\\Entity\\Ip 
     */
    public function getIp(){
        return $this->ip;
    }

    /**
     * @return Doctrine\\Common\\Collections\\ArrayCollection 
     */
    public function getReceivedMessages(){
        return $this->receivedMessages;
    }

    /**
     * @return \\DateTime 
     */
    public function getCreated(){
        return $this->created;
    }

    /**
     * @return \\DateTime 
     */
    public function getLastAction(){
        return $this->lastAction;
    }

    /**
     * @param Console\\Entity\\User $receiver
     * @param Message $message
     * @param type $isRead 
     */
    public function sendMessage(User $receiver,Message $message,$isRead = false){
        $this->sentMessages[] = new UserMessage($this,$receiver,$message,$isRead);
    }

    /**
     * @param \\DateTime $dateTime 
     */
    public function setLastAction(\\DateTime $dateTime = null){
        $this->lastAction = ($dateTime) ? $dateTime : new \\DateTime(\"now\");
    }

    public function setIp(Ip $ip){
        $this->ip = $ip;
    }

    public function removeIp(){
        $this->ip = null;
    }

    public function getName(){
        return $this->getUsername();
    }

}
MessageUser.php 
namespace Console\\Entity;

/**
 * @Entity(repositoryClass=\"Console\\Repository\\UserMessage\")
 * @Table(name=\"user_message\")
 * @HasLifecycleCallbacks
 */
class UserMessage {

    /**
     * @Id 
     * @GeneratedValue 
     * @Column(type=\"integer\")
     */
    protected $id;

    /**
     * @ManyToOne(targetEntity=\"Console\\Entity\\User\",cascade={\"all\"})
     */
    protected $sender;

    /**
     * @ManyToOne(targetEntity=\"Console\\Entity\\User\",cascade={\"all\"})
     */
    protected $receiver;

    /**
     * @ManyToOne(targetEntity=\"Console\\Entity\\Message\",cascade={\"all\"})
     */
    protected $message;

    /**
     * @Column(name=\"is_read\",type=\"boolean\")
     */
    protected $isRead = false;

    /**
     * @Column(name=\"read_at\",type=\"datetime\",nullable=true)
     */
    protected $readAt = null;

    /**
     * @Column(type=\"datetime\")
     */
    protected $created;

    public function __construct(User $sender,User $receiver,$isRead = false){
        $this->sender   = $sender;
        $this->receiver = $receiver;
        $this->message  = $message;
        if($isRead)
            $this->setIsRead();
    }

    /** @PrePersist */
    public function prePersist(){
        $this->created = new \\DateTime(\"now\");
    }

    /**
     * @return int 
     */
    public function getId(){
        return $this->id;
    }

    /**
     * @return Console\\Entity\\User 
     */
    public function getSender(){
        return $this->sender;
    }

    /**
     * @return Console\\Entity\\User 
     */
    public function getReceiver(){
        return $this->receiver;
    }

    /**
     * @return Console\\Entity\\Message 
     */
    public function getMessage(){
        return $this->message;
    }

    /**
     * @return boolean 
     */
    public function isRead(){
        return $this->isRead;
    }

    /**
     * @return \\DateTime 
     */
    public function readAt(){
        return $this->readAt;
    }

    public function setIsRead(){
        $this->isRead = true;
        $this->readAt = new \\DateTime(\"now\");
    }

    public function setUnread(){
        $this->isRead = false;
        $this->readAt = null;
    }

}
    
2.02.0一对多一对多一对多多对一多对一教义

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