学说问题;如果向关系添加项目，则无法保留实体

时间：2011-07-10 07:36:08

标签： php doctrine-orm

我在设立Doctrine方面遇到了一些困难，我希望有些大师可以帮助我。如果我尝试自己保存MainEntity，它可以正常工作。但是，如果我将“标签”添加到此实体的标签集合中，则会收到错误。

这是我的信息：我有与此类似的实体

namespace CG;
class Content
{
    public $id;
    public $tags;
    public function __construct()
    {
        $this->tags = new ArrayCollection();
    } 
}

/* this is single table inheritance */
class Tag extends TagAssociation
{
    public $id;
    public $term;
    public $content;
}

class Term
{
    public $id;
    public $name;
}

映射

<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
                    http://doctrine-project.org/schemas/orm/doctrine-mapping.xsd">

      <entity name="CG\Content" table="cg_content">
          <id name="id" type="integer" column="Id">
              <generator strategy="AUTO" />
          </id>
            <one-to-many field="tags" target-entity="CG\Tag" mapped-by="tagContent">
                 <join-column name="ContentId" referenced-column-name="Id" nullable="false"  fetch="FETCH" />
                <cascade>
                    <cascade-persist/>
                </cascade>
            </one-to-many>
</doctrine-mapping> 

<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
                    http://doctrine-project.org/schemas/orm/doctrine-mapping.xsd">
      <entity name="CG\Tag" table="cg_contenttags">
            <!-- docterin requires bi-directional relationships for many to one -->
            <many-to-one field="tagContent" target-entity="CG\Content" inversed-by="tags">
                <join-column name="ContentId" referenced-column-name="Id" />
            </many-to-one>
      </entity>
</doctrine-mapping>

<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
                    http://doctrine-project.org/schemas/orm/doctrine-mapping.xsd">

      <entity name="CG\Term" table="cg_tags">
          <id name="id" type="integer" column="Id">
              <generator strategy="AUTO" />
          </id>

          <field name="name" column="Name" type="string" />
      </entity>
</doctrine-mapping> 

<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://doctrine-project.org/schemas/orm/doctrine-mapping
                    http://doctrine-project.org/schemas/orm/doctrine-mapping.xsd">

      <entity name="CG\TermAssociation" table="cg_contenttags"  inheritance-type="SINGLE_TABLE">
             <!-- surrogate PK for simplicity -->
             <id name="id" type="integer" column="Id">
                  <generator strategy="AUTO" />
              </id>

            <discriminator-column name="TaxonomyId" type="integer" />
            <discriminator-map>
                <discriminator-mapping value="1" class="CG\Tag" />
                <discriminator-mapping value="2" class="CG\Category" />
            </discriminator-map>


            <many-to-one field="content" target-entity="CG\Content" >
                <join-column  fetch="FETCH" name="ContentId" referenced-column-name="Id"/>
            </many-to-one >


            <many-to-one field="term" target-entity="CG\Term" >
                <join-column  fetch="FETCH" name="TagId" referenced-column-name="Id" />
                <cascade>
                    <cascade-persist/>
                </cascade>
            </many-to-one >
      </entity>
</doctrine-mapping>

最后，这是我得到的错误

( ! ) Warning: spl_object_hash() expects parameter 1 to be object, array given in C:\wamp\www\Content\Doctrine\ORM\UnitOfWork.php on line 1073
Call Stack
#   Time    Memory  Function    Location
1   0.0130  437368  {main}( )   ..\index.php:0
2   0.3809  3813352 CG\handleRequest( ) ..\index.php:181
3   0.3817  3813384 CG\saveContent( )   ..\index.php:92
4   0.4617  6772280 CG\Database->saveContent( ) ..\index.php:33
5   0.4623  6772872 Doctrine\ORM\EntityManager->flush( )    ..\Database.php:120
6   0.4623  6772872 Doctrine\ORM\UnitOfWork->commit( )  ..\EntityManager.php:334
7   0.4623  6772872 Doctrine\ORM\UnitOfWork->computeChangeSets( )   ..\UnitOfWork.php:256
8   0.4669  6932368 Doctrine\ORM\UnitOfWork->computeChangeSet( )    ..\UnitOfWork.php:510
9   0.4671  6934472 Doctrine\ORM\UnitOfWork->computeAssociationChanges( )   ..\UnitOfWork.php:495
10  0.4672  6934672 Doctrine\ORM\UnitOfWork->getEntityState( )  ..\UnitOfWork.php:572
11  0.4672  6934704 spl_object_hash ( ) ..\UnitOfWork.php:1073

( ! ) Warning: spl_object_hash() expects parameter 1 to be object, array given in C:\wamp\www\Content\Doctrine\ORM\UnitOfWork.php on line 573
Call Stack
#   Time    Memory  Function    Location
1   0.0130  437368  {main}( )   ..\index.php:0
2   0.3809  3813352 CG\handleRequest( ) ..\index.php:181
3   0.3817  3813384 CG\saveContent( )   ..\index.php:92
4   0.4617  6772280 CG\Database->saveContent( ) ..\index.php:33
5   0.4623  6772872 Doctrine\ORM\EntityManager->flush( )    ..\Database.php:120
6   0.4623  6772872 Doctrine\ORM\UnitOfWork->commit( )  ..\EntityManager.php:334
7   0.4623  6772872 Doctrine\ORM\UnitOfWork->computeChangeSets( )   ..\UnitOfWork.php:256
8   0.4669  6932368 Doctrine\ORM\UnitOfWork->computeChangeSet( )    ..\UnitOfWork.php:510
9   0.4671  6934472 Doctrine\ORM\UnitOfWork->computeAssociationChanges( )   ..\UnitOfWork.php:495
10  0.4677  6934704 spl_object_hash ( ) ..\UnitOfWork.php:573

( ! ) Warning: spl_object_hash() expects parameter 1 to be object, array given in C:\wamp\www\Content\Doctrine\ORM\UnitOfWork.php on line 601
Call Stack
#   Time    Memory  Function    Location
1   0.0130  437368  {main}( )   ..\index.php:0
2   0.3809  3813352 CG\handleRequest( ) ..\index.php:181
3   0.3817  3813384 CG\saveContent( )   ..\index.php:92
4   0.4617  6772280 CG\Database->saveContent( ) ..\index.php:33
5   0.4623  6772872 Doctrine\ORM\EntityManager->flush( )    ..\Database.php:120
6   0.4623  6772872 Doctrine\ORM\UnitOfWork->commit( )  ..\EntityManager.php:334
7   0.4623  6772872 Doctrine\ORM\UnitOfWork->computeChangeSets( )   ..\UnitOfWork.php:256
8   0.4669  6932368 Doctrine\ORM\UnitOfWork->computeChangeSet( )    ..\UnitOfWork.php:510
9   0.4671  6934472 Doctrine\ORM\UnitOfWork->computeAssociationChanges( )   ..\UnitOfWork.php:495
10  0.4680  6934704 Doctrine\ORM\UnitOfWork->persistNew( )  ..\UnitOfWork.php:583
11  0.4680  6934736 spl_object_hash ( ) ..\UnitOfWork.php:601

( ! ) Warning: spl_object_hash() expects parameter 1 to be object, array given in C:\wamp\www\Content\Doctrine\ORM\UnitOfWork.php on line 882
Call Stack
#   Time    Memory  Function    Location
1   0.0130  437368  {main}( )   ..\index.php:0
2   0.3809  3813352 CG\handleRequest( ) ..\index.php:181
3   0.3817  3813384 CG\saveContent( )   ..\index.php:92
4   0.4617  6772280 CG\Database->saveContent( ) ..\index.php:33
5   0.4623  6772872 Doctrine\ORM\EntityManager->flush( )    ..\Database.php:120
6   0.4623  6772872 Doctrine\ORM\UnitOfWork->commit( )  ..\EntityManager.php:334
7   0.4623  6772872 Doctrine\ORM\UnitOfWork->computeChangeSets( )   ..\UnitOfWork.php:256
8   0.4669  6932368 Doctrine\ORM\UnitOfWork->computeChangeSet( )    ..\UnitOfWork.php:510
9   0.4671  6934472 Doctrine\ORM\UnitOfWork->computeAssociationChanges( )   ..\UnitOfWork.php:495
10  0.4680  6934704 Doctrine\ORM\UnitOfWork->persistNew( )  ..\UnitOfWork.php:583
11  0.4685  6934816 Doctrine\ORM\UnitOfWork->scheduleForInsert( )   ..\UnitOfWork.php:621
12  0.4685  6934848 spl_object_hash ( ) ..\UnitOfWork.php:882

( ! ) Warning: spl_object_hash() expects parameter 1 to be object, array given in C:\wamp\www\Content\Doctrine\ORM\UnitOfWork.php on line 405
Call Stack
#   Time    Memory  Function    Location
1   0.0130  437368  {main}( )   ..\index.php:0
2   0.3809  3813352 CG\handleRequest( ) ..\index.php:181
3   0.3817  3813384 CG\saveContent( )   ..\index.php:92
4   0.4617  6772280 CG\Database->saveContent( ) ..\index.php:33
5   0.4623  6772872 Doctrine\ORM\EntityManager->flush( )    ..\Database.php:120
6   0.4623  6772872 Doctrine\ORM\UnitOfWork->commit( )  ..\EntityManager.php:334
7   0.4623  6772872 Doctrine\ORM\UnitOfWork->computeChangeSets( )   ..\UnitOfWork.php:256
8   0.4669  6932368 Doctrine\ORM\UnitOfWork->computeChangeSet( )    ..\UnitOfWork.php:510
9   0.4671  6934472 Doctrine\ORM\UnitOfWork->computeAssociationChanges( )   ..\UnitOfWork.php:495
10  0.4689  6935112 Doctrine\ORM\UnitOfWork->computeChangeSet( )    ..\UnitOfWork.php:584
11  0.4689  6935144 spl_object_hash ( ) ..\UnitOfWork.php:405

( ! ) Warning: ReflectionProperty::getValue() expects parameter 1 to be object, array given in C:\wamp\www\Content\Doctrine\ORM\UnitOfWork.php on line 408
Call Stack
#   Time    Memory  Function    Location
1   0.0130  437368  {main}( )   ..\index.php:0
2   0.3809  3813352 CG\handleRequest( ) ..\index.php:181
3   0.3817  3813384 CG\saveContent( )   ..\index.php:92
4   0.4617  6772280 CG\Database->saveContent( ) ..\index.php:33
5   0.4623  6772872 Doctrine\ORM\EntityManager->flush( )    ..\Database.php:120
6   0.4623  6772872 Doctrine\ORM\UnitOfWork->commit( )  ..\EntityManager.php:334
7   0.4623  6772872 Doctrine\ORM\UnitOfWork->computeChangeSets( )   ..\UnitOfWork.php:256
8   0.4669  6932368 Doctrine\ORM\UnitOfWork->computeChangeSet( )    ..\UnitOfWork.php:510
9   0.4671  6934472 Doctrine\ORM\UnitOfWork->computeAssociationChanges( )   ..\UnitOfWork.php:495
10  0.4689  6935112 Doctrine\ORM\UnitOfWork->computeChangeSet( )    ..\UnitOfWork.php:584
11  0.4693  6935344 ReflectionProperty->getValue( ) ..\UnitOfWork.php:408

( ! ) Warning: ReflectionProperty::getValue() expects parameter 1 to be object, array given in C:\wamp\www\Content\Doctrine\ORM\UnitOfWork.php on line 408
Call Stack
#   Time    Memory  Function    Location
1   0.0130  437368  {main}( )   ..\index.php:0
2   0.3809  3813352 CG\handleRequest( ) ..\index.php:181
3   0.3817  3813384 CG\saveContent( )   ..\index.php:92
4   0.4617  6772280 CG\Database->saveContent( ) ..\index.php:33
5   0.4623  6772872 Doctrine\ORM\EntityManager->flush( )    ..\Database.php:120
6   0.4623  6772872 Doctrine\ORM\UnitOfWork->commit( )  ..\EntityManager.php:334
7   0.4623  6772872 Doctrine\ORM\UnitOfWork->computeChangeSets( )   ..\UnitOfWork.php:256
8   0.4669  6932368 Doctrine\ORM\UnitOfWork->computeChangeSet( )    ..\UnitOfWork.php:510
9   0.4671  6934472 Doctrine\ORM\UnitOfWork->computeAssociationChanges( )   ..\UnitOfWork.php:495
10  0.4689  6935112 Doctrine\ORM\UnitOfWork->computeChangeSet( )    ..\UnitOfWork.php:584
11  0.4696  6935424 ReflectionProperty->getValue( ) ..\UnitOfWork.php:408

( ! ) Warning: get_class() expects parameter 1 to be object, array given in C:\wamp\www\Content\Doctrine\ORM\UnitOfWork.php on line 839
Call Stack
#   Time    Memory  Function    Location
1   0.0130  437368  {main}( )   ..\index.php:0
2   0.3809  3813352 CG\handleRequest( ) ..\index.php:181
3   0.3817  3813384 CG\saveContent( )   ..\index.php:92
4   0.4617  6772280 CG\Database->saveContent( ) ..\index.php:33
5   0.4623  6772872 Doctrine\ORM\EntityManager->flush( )    ..\Database.php:120
6   0.4623  6772872 Doctrine\ORM\UnitOfWork->commit( )  ..\EntityManager.php:334
7   0.4703  6935072 Doctrine\ORM\UnitOfWork->getCommitOrder( )  ..\UnitOfWork.php:279
8   0.4712  6960832 get_class ( )   ..\UnitOfWork.php:839

( ! ) Warning: class_parents() [function.class-parents]: object or string expected in C:\wamp\www\Content\Doctrine\ORM\Mapping\ClassMetadataFactory.php on line 223
Call Stack
#   Time    Memory  Function    Location
1   0.0130  437368  {main}( )   ..\index.php:0
2   0.3809  3813352 CG\handleRequest( ) ..\index.php:181
3   0.3817  3813384 CG\saveContent( )   ..\index.php:92
4   0.4617  6772280 CG\Database->saveContent( ) ..\index.php:33
5   0.4623  6772872 Doctrine\ORM\EntityManager->flush( )    ..\Database.php:120
6   0.4623  6772872 Doctrine\ORM\UnitOfWork->commit( )  ..\EntityManager.php:334
7   0.4703  6935072 Doctrine\ORM\UnitOfWork->getCommitOrder( )  ..\UnitOfWork.php:279
8   0.4715  6960784 Doctrine\ORM\EntityManager->getClassMetadata( ) ..\UnitOfWork.php:841
9   0.4715  6960784 Doctrine\ORM\Mapping\ClassMetadataFactory->getMetadataFor( )    ..\EntityManager.php:257
10  0.4716  6960816 Doctrine\ORM\Mapping\ClassMetadataFactory->loadMetadata( )  ..\ClassMetadataFactory.php:170
11  0.4716  6960936 Doctrine\ORM\Mapping\ClassMetadataFactory->getParentClasses( )  ..\ClassMetadataFactory.php:246
12  0.4716  6961088 class_parents ( )   ..\ClassMetadataFactory.php:223

( ! ) Warning: array_reverse() expects parameter 1 to be array, boolean given in C:\wamp\www\Content\Doctrine\ORM\Mapping\ClassMetadataFactory.php on line 223
Call Stack
#   Time    Memory  Function    Location
1   0.0130  437368  {main}( )   ..\index.php:0
2   0.3809  3813352 CG\handleRequest( ) ..\index.php:181
3   0.3817  3813384 CG\saveContent( )   ..\index.php:92
4   0.4617  6772280 CG\Database->saveContent( ) ..\index.php:33
5   0.4623  6772872 Doctrine\ORM\EntityManager->flush( )    ..\Database.php:120
6   0.4623  6772872 Doctrine\ORM\UnitOfWork->commit( )  ..\EntityManager.php:334
7   0.4703  6935072 Doctrine\ORM\UnitOfWork->getCommitOrder( )  ..\UnitOfWork.php:279
8   0.4715  6960784 Doctrine\ORM\EntityManager->getClassMetadata( ) ..\UnitOfWork.php:841
9   0.4715  6960784 Doctrine\ORM\Mapping\ClassMetadataFactory->getMetadataFor( )    ..\EntityManager.php:257
10  0.4716  6960816 Doctrine\ORM\Mapping\ClassMetadataFactory->loadMetadata( )  ..\ClassMetadataFactory.php:170
11  0.4716  6960936 Doctrine\ORM\Mapping\ClassMetadataFactory->getParentClasses( )  ..\ClassMetadataFactory.php:246
12  0.4720  6961448 array_reverse ( )   ..\ClassMetadataFactory.php:223

( ! ) Warning: Invalid argument supplied for foreach() in C:\wamp\www\Content\Doctrine\ORM\Mapping\ClassMetadataFactory.php on line 223
Call Stack
#   Time    Memory  Function    Location
1   0.0130  437368  {main}( )   ..\index.php:0
2   0.3809  3813352 CG\handleRequest( ) ..\index.php:181
3   0.3817  3813384 CG\saveContent( )   ..\index.php:92
4   0.4617  6772280 CG\Database->saveContent( ) ..\index.php:33
5   0.4623  6772872 Doctrine\ORM\EntityManager->flush( )    ..\Database.php:120
6   0.4623  6772872 Doctrine\ORM\UnitOfWork->commit( )  ..\EntityManager.php:334
7   0.4703  6935072 Doctrine\ORM\UnitOfWork->getCommitOrder( )  ..\UnitOfWork.php:279
8   0.4715  6960784 Doctrine\ORM\EntityManager->getClassMetadata( ) ..\UnitOfWork.php:841
9   0.4715  6960784 Doctrine\ORM\Mapping\ClassMetadataFactory->getMetadataFor( )    ..\EntityManager.php:257
10  0.4716  6960816 Doctrine\ORM\Mapping\ClassMetadataFactory->loadMetadata( )  ..\ClassMetadataFactory.php:170
11  0.4716  6960936 Doctrine\ORM\Mapping\ClassMetadataFactory->getParentClasses( )  ..\ClassMetadataFactory.php:246

( ! ) Fatal error: Uncaught exception 'ReflectionException' with message 'Class does not exist' in C:\wamp\www\Content\Doctrine\ORM\Mapping\ClassMetadata.php on line 66
( ! ) ReflectionException: Class does not exist in C:\wamp\www\Content\Doctrine\ORM\Mapping\ClassMetadata.php on line 66
Call Stack
#   Time    Memory  Function    Location
1   0.0130  437368  {main}( )   ..\index.php:0
2   0.3809  3813352 CG\handleRequest( ) ..\index.php:181
3   0.3817  3813384 CG\saveContent( )   ..\index.php:92
4   0.4617  6772280 CG\Database->saveContent( ) ..\index.php:33
5   0.4623  6772872 Doctrine\ORM\EntityManager->flush( )    ..\Database.php:120
6   0.4623  6772872 Doctrine\ORM\UnitOfWork->commit( )  ..\EntityManager.php:334
7   0.4703  6935072 Doctrine\ORM\UnitOfWork->getCommitOrder( )  ..\UnitOfWork.php:279
8   0.4715  6960784 Doctrine\ORM\EntityManager->getClassMetadata( ) ..\UnitOfWork.php:841
9   0.4715  6960784 Doctrine\ORM\Mapping\ClassMetadataFactory->getMetadataFor( )    ..\EntityManager.php:257
10  0.4716  6960816 Doctrine\ORM\Mapping\ClassMetadataFactory->loadMetadata( )  ..\ClassMetadataFactory.php:170
11  0.4727  6971528 Doctrine\ORM\Mapping\ClassMetadataFactory->newClassMetadataInstance( )  ..\ClassMetadataFactory.php:263
12  0.4728  6973768 Doctrine\ORM\Mapping\ClassMetadata->__construct( )  ..\ClassMetadataFactory.php:362
13  0.4728  6974008 ReflectionClass->__construct( ) ..\ClassMetadata.php:66

编辑1：

以下是我的SaveContent函数

中的行 
public function saveContent($content)
    {
        $this->entityManager->persist($content);
        $this->entityManager->flush();
    }

保存内容非常简单，但是，要创建$ content，我正在执行以下操作

  1. 接收描述内容对象更改的json
  2. 检查我收到的json是否有id。如果是这样，我从数据库中获取内容对象。如果没有，我创建一个新的内容对象
  3. 将字段从json对象复制到我的内容对象
  4. 致电$ content-＆gt; tags-＆gt; clear（）
  5. 循环遍历json对象中的每个标记。这些只是字符串。我需要重新创建$ content-＆gt;标记
    1. 查看数据库中是否有此contentId和termName的标记。如果是这样，请将其添加到tags集合中。完成。
    2. 如果没有，请查看数据库中是否存在与termName匹配的术语。如果是，请创建新标记，为其分配术语和内容，然后将其添加到标记。完成。
    3. 如果没有，请创建新标记和新术语，为其分配术语和内容，并将其添加到标记。完成。

    7. 执行var转储显示我的$ content对象符合预期。

    编辑2：已解决

    我的内容对象毕竟不是预期的。我在标签集合中添加了一个数组而不是CG \ Tag。

3 个答案:

答案 0 :(得分：8)

回答这个问题以关闭它。如果其他人有同样的问题，也许这可以帮助。

我的内容对象毕竟不是预期的。我在标签集合中添加了一个数组而不是CG \ Tag。这导致收集不是Doctrine所期望的，因此警告

  

警告：spl_object_hash（）期望参数1为object，array   给定

警告比实际错误提供了更多信息。

答案 1 :(得分：2)

小提示：注意addTag方法与setTag方法之间的区别。

<?php

class Article
{
    /**
     * @var Tags
     *
     * @ORM\ManyToMany(targetEntity="Tags", inversedBy="article", cascade={"all"})
     * @ORM\JoinTable(name="article_tags",
     *   joinColumns={
     *     @ORM\JoinColumn(name="article_id", referencedColumnName="id")
     *   },
     *   inverseJoinColumns={
     *     @ORM\JoinColumn(name="tag_id", referencedColumnName="id")
     *   }
     * )
     */
    private $tag;

    public function __construct()
    {
        $this->tag = new \Doctrine\Common\Collections\ArrayCollection();
    }

    public function addTag(\Acme\CoreBundle\Entity\Tag $tag)
    {
        $this->tag[] = $tag;
    }

    // the set method is useful to automatic form purposes
    public function setTag(\Doctrine\Common\Collections\ArrayCollection $tag)
    {
        $this->tag = $tag;
    }
}

?>

答案 2 :(得分：0)

我有同样的问题 - 也有标签（许多标签与数据库中的许多文章相关）。

我有以下指示：

                    foreach ($tags as $vv) {
                        $tobj = $this->getDoctrine()
                            ->getRepository("MainBundle:Tag")
                                ->findByTag($vv); // returns ARRAY of objects (= not wanted and not expected by Doctrine)
                        //...
                        $artic->getTags()->add($tobj);

正确运行的代码是：

                    foreach ($tags as $vv) {
                        $tobj = $this->getDoctrine()
                            ->getRepository("MainBundle:Tag")
                                ->findOneByTag($vv); // returns one object
                        //...
                        $artic->getTags()->add($tobj);

（注意findONEby，而不是findby）。

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