Doctrine 2 - 关于重复密钥更新

Question

我有一个用户实体，它使用多对多连接与角色实体关联 table。

我的问题是什么时候来更新

它抛出以下错误：

An exception occurred while executing 'INSERT INTO user_role (user_id, role_id) VALUES (?, ?)' with params [38, 3]:

SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '38-3' for key 'PRIMARY'

现在，如果我理解正确，问题是我正在尝试插入另一行，其中的主键已经存在。

加入table 学说在下面生成的模式。

+---------+---------+------+-----+---------+-------+
| Field   | Type    | Null | Key | Default | Extra |
+---------+---------+------+-----+---------+-------+
| user_id | int(11) | NO   | PRI | NULL    |       |
| role_id | int(11) | NO   | PRI | NULL    |       |
+---------+---------+------+-----+---------+-------+

我的用户实体有一个方法 setRoles()，它将角色添加到 ArrayCollection，然后 doctrine 将尝试执行插入。

所以我想我想问的是学说中是否有重复键方法？

或者有人可以给我一些关于如何实现这一目标的指导，即使这意味着重新生成一个模式。

我是 doctrine 的新手，我已经遵循了初学者教程并且仍在仔细研究文档。

编辑

<?php
namespace Brs\UserBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Security\Core\User\UserInterface;
use Doctrine\Common\Collections\ArrayCollection;

class User implements UserInterface, \Serializable
{
    private $id;
    private $username;
    private $fname;
    private $lname;
    private $email;
    private $mobile;
    private $active;
    private $mentor;
    private $initialized;
    private $roles;
    private $password;
    private $tempPassword;

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

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

    public function setTempPassword($tempPassword){
        $this->tempPassword = $tempPassword;

        return $this;
    }

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

    public function getSalt(){
        return null;
    }

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

    public function getRoles(){
        return $this->roles->toArray();
    }

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

    public function setRoles($roles){
        $this->roles[] = $roles;
        return $this;
    }

    public function eraseCredentials(){

    }

    public function serialize(){
        return serialize(array(
            $this->id,
            $this->username,
            $this->password,
        ));
    }

    public function unserialize($serialized){
        list(
                $this->id,
                $this->username,
                $this->password,
            ) = unserialize($serialized);
    }

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

    /**
     * Set username
     *
     * @param string $username
     * @return User
     */
    public function setUsername($username)
    {
        $this->username = $username;

        return $this;
    }

    /**
     * Set fname
     *
     * @param string $fname
     * @return User
     */
    public function setFname($fname)
    {
        $this->fname = $fname;

        return $this;
    }

    /**
     * Get fname
     *
     * @return string 
     */
    public function getFname()
    {
        return $this->fname;
    }

    /**
     * Set lname
     *
     * @param string $lname
     * @return User
     */
    public function setLname($lname)
    {
        $this->lname = $lname;

        return $this;
    }

    /**
     * Get lname
     *
     * @return string 
     */
    public function getLname()
    {
        return $this->lname;
    }

    /**
     * Set email
     *
     * @param string $email
     * @return User
     */
    public function setEmail($email)
    {
        $this->email = $email;

        return $this;
    }

    /**
     * Get email
     *
     * @return string 
     */
    public function getEmail()
    {
        return $this->email;
    }

    /**
     * Set mobile
     *
     * @param string $mobile
     * @return User
     */
    public function setMobile($mobile)
    {
        $this->mobile = $mobile;

        return $this;
    }

    /**
     * Get mobile
     *
     * @return string 
     */
    public function getMobile()
    {
        return $this->mobile;
    }

    /**
     * Set active
     *
     * @param boolean $active
     * @return User
     */
    public function setActive($active)
    {
        $this->active = $active;

        return $this;
    }

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

    /**
     * Set mentor
     *
     * @param boolean $mentor
     * @return User
     */
    public function setMentor($mentor)
    {
        $this->mentor = $mentor;

        return $this;
    }

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

    /**
     * Set initialized
     *
     * @param \DateTime $initialized
     * @return User
     */
    public function setInitialized($initialized)
    {
        $this->initialized = $initialized;

        return $this;
    }

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

    /**
     * Set password
     *
     * @param string $password
     * @return User
     */
    public function setPassword($password)
    {
        $this->password = $password;

        return $this;
    }
    /**
     * @var \Doctrine\Common\Collections\Collection
     */
    private $targetEntity;

    /**
     * @var \Doctrine\Common\Collections\Collection
     */
    private $inversedBy;


    /**
     * Add targetEntity
     *
     * @param \Brs\UserBundle\Entity\R $targetEntity
     * @return User
     */
    public function addTargetEntity(\Brs\UserBundle\Entity\R $targetEntity)
    {
        $this->targetEntity[] = $targetEntity;

        return $this;
    }

    /**
     * Remove targetEntity
     *
     * @param \Brs\UserBundle\Entity\R $targetEntity
     */
    public function removeTargetEntity(\Brs\UserBundle\Entity\R $targetEntity)
    {
        $this->targetEntity->removeElement($targetEntity);
    }

    /**
     * Get targetEntity
     *
     * @return \Doctrine\Common\Collections\Collection 
     */
    public function getTargetEntity()
    {
        return $this->targetEntity;
    }

    /**
     * Add inversedBy
     *
     * @param \Brs\UserBundle\Entity\u $inversedBy
     * @return User
     */
    public function addInversedBy(\Brs\UserBundle\Entity\u $inversedBy)
    {
        $this->inversedBy[] = $inversedBy;

        return $this;
    }

    /**
     * Remove inversedBy
     *
     * @param \Brs\UserBundle\Entity\u $inversedBy
     */
    public function removeInversedBy(\Brs\UserBundle\Entity\u $inversedBy)
    {
        $this->inversedBy->removeElement($inversedBy);
    }

    /**
     * Get inversedBy
     *
     * @return \Doctrine\Common\Collections\Collection 
     */
    public function getInversedBy()
    {
        return $this->inversedBy;
    }

    /**
     * Add roles
     *
     * @param \Brs\UserBundle\Entity\Role $roles
     * @return User
     */
    public function addRole(\Brs\UserBundle\Entity\Role $roles)
    {
        $this->roles[] = $roles;

        return $this;
    }

    /**
     * Remove roles
     *
     * @param \Brs\UserBundle\Entity\Role $roles
     */
    public function removeRole(\Brs\UserBundle\Entity\Role $roles)
    {
        $this->roles->removeElement($roles);
    }
}

角色实体：

<?php
namespace Brs\UserBundle\Entity;

use Symfony\Component\Security\Core\Role\RoleInterface;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping as ORM;

class Role implements RoleInterface{
    private $id;
    private $name;
    private $role;
    private $users;

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

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

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

    /**
     * Set name
     *
     * @param string $name
     * @return Role
     */
    public function setName($name)
    {
        $this->name = $name;

        return $this;
    }

    /**
     * Get name
     *
     * @return string 
     */
    public function getName()
    {
        return $this->name;
    }

    /**
     * Set role
     *
     * @param string $role
     * @return Role
     */
    public function setRole($role)
    {
        $this->role = $role;

        return $this;
    }

    /**
     * Add users
     *
     * @param \Brs\UserBundle\Entity\User $users
     * @return Role
     */
    public function addUser(\Brs\UserBundle\Entity\User $users)
    {
        $this->users[] = $users;

        return $this;
    }

    /**
     * Remove users
     *
     * @param \Brs\UserBundle\Entity\User $users
     */
    public function removeUser(\Brs\UserBundle\Entity\User $users)
    {
        $this->users->removeElement($users);
    }

    /**
     * Get users
     *
     * @return \Doctrine\Common\Collections\Collection 
     */
    public function getUsers()
    {
        return $this->users;
    }
}

谢谢

亚当

Answer 1

感谢您的所有意见 :-)。

好吧，由于我缺乏理解，我不知道 mysql 复合键，感谢@prodigitalson 指出了这一点。

这是我在我的用户实体中实现的，用于检查组合键是否不存在，如果不存在则执行插入。感谢@kmlnvm 的指导。

private $roleIds = array();

public function setRoles($role){
    if($role !== null){
        foreach($this->getRoles() as $currentRole){
            $this->roleIds[] = $currentRole->getId();
        }

        if(!in_array($role->getId(),$this->roleIds)){
            $this->roles[] = $role;
        }
    }

    return $this;
}

我想输入我已经实现的内容，这是执行此操作的好方法吗？

谢谢

亚当

Answer 2

@Adam ArrayCollection 上有检查它的功能。前两个是 contains 和 indexOf - 它们在内部使用 in_array 和 array_search 所以我认为您需要传入的 Role 与加载到集合中的标识映射 - 因为它测试引用相等性。第三，exists 允许您传入闭包以用作比较函数。

我会在 User 实体的 hasRole 方法中使用这些方法之一：

public function hasRole(Role $role) {
    return $this->getRoles()->contains($role);
}

如果出于某种原因您需要使用 exists 而不是，它可能看起来像：

public function hasRole(Role $role) {
    return $this->getRoles()->exists(function($key, $entity) use ($role) {
         return $entity->getId() === $role->getId();
    });
}

您当然可以更改该方法以比较更多字段或其他内容，或者允许您传入一组字段进行比较，但在这种情况下似乎不需要这样做。

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