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POTwo one-to-many relationship with reference table (Doctrine 2, ZF2)
 

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  1. POTwo one-to-many relationship with reference table (Doctrine 2, ZF2)
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    <p>I've a problem with my many-to-many relation. I want to have access to the reference table for a querybuilder query. With a many-to-many relation I don't have access to my reference table, so I've set up two one-to-many relationships. My structure look likes:</p> <p><code>User ---&gt; UserUserCategory &lt;--- UserCategory</code></p> <p>The above structure has two one-to-many relationships and are working fine with the database. When I have a user with the following data in the database (in UserUserCategory):</p> <pre><code>Table User ID | Name 1 | Bart 2 | Gerard Table Category ID | Name 1 | Officer 2 | Medic Table UserUserCategory User | Category 1 | 1 2 | 2 </code></pre> <p>So Bart is an Officer and Gerard is a Medic. But when I want to retrieve the data, it said that Bart is the Medic, and Gerard has a "null" value in the category. </p> <p><strong>My User-entity:</strong></p> <pre class="lang-php prettyprint-override"><code>/** * Entity Class representing a post of our User module. * * @ORM\Entity * @ORM\Table(name="user") * @ORM\Entity(repositoryClass="User\Repository\UserRepository") * */ class User extends zfcUser implements UserInterface { /** * Categories from user * * @ORM\OneToMany(targetEntity="User\Entity\UserUserCategory", mappedBy="user_id", cascade={"remove", "persist"}) * @var UserUserCategory * @access protected */ protected $user_usercategories; //name &amp; user_id comes here /** * Constructor to make a new ArrayCollection for addresses * * */ public function __construct() { $this-&gt;user_usercategories = new ArrayCollection(); } /** * @param Collection $categories */ public function addUserUserCategories(Collection $user_usercategories) { foreach ($user_usercategories as $user_usercategorie) { $user_usercategorie-&gt;setUser($this); $this-&gt;user_usercategories-&gt;add($user_usercategorie); } } /** * @param Collection $categories */ public function removeUserUserCategories(Collection $user_usercategories) { foreach ($user_usercategories as $user_usercategorie) { $user_usercategorie-&gt;setUser(null); $this-&gt;user_usercategories-&gt;removeElement($user_usercategorie); } } /** * @return Collection */ public function getUserUserCategories() { return $this-&gt;categories; } } </code></pre> <p><strong>My UserCategory-entity:</strong></p> <pre class="lang-php prettyprint-override"><code>/** * A User category entity. * @ORM\Entity * @ORM\Table(uniqueConstraints={@ORM\UniqueConstraint(name="unique_name_parentId", columns={"name", "parent_id"})}) * @ORM\HasLifecycleCallbacks */ class UserCategory extends Category { /** * User_usercategories * * @ORM\OneToMany(targetEntity="User\Entity\UserUserCategory", mappedBy="category_id") * @var UserUserCategory * @access protected */ protected $user_usercategories; /** * Constructor */ public function __construct() { $this-&gt;user_usercategories = new ArrayCollection(); } /** * @param Collection $categories */ public function addUserUserCategories(Collection $user_usercategories) { foreach ($user_usercategories as $user_usercategorie) { $user_usercategorie-&gt;setCategory($this); $this-&gt;user_usercategories-&gt;add($user_usercategorie); } } /** * @param Collection $categories */ public function removeUserUserCategories(Collection $user_usercategories) { foreach ($user_usercategories as $user_usercategorie) { $user_usercategorie-&gt;setCategory(null); $this-&gt;user_usercategories-&gt;removeElement($user_usercategorie); } } /** * @return Collection */ public function getUserUserCategories() { return $this-&gt;categories; } } </code></pre> <p><strong>My UserUserCategory-entity:</strong></p> <pre class="lang-php prettyprint-override"><code>/** * Entity Class representing a post of our User_UserCategory entity. * * @ORM\Entity * @ORM\Table(name="user_usercategory") * */ class UserUserCategory { /** * User with a category * * @ORM\ManyToOne(targetEntity="User\Entity\User", inversedBy="user_usercategories") * @ORM\JoinColumn(name="user_id", referencedColumnName="user_id", nullable=false, onDelete="CASCADE") * @ORM\Id * * @var User * @access protected */ protected $user_id; /** * Category from user * * @ORM\ManyToOne(targetEntity="User\Entity\UserCategory", inversedBy="user_usercategories") * @ORM\JoinColumn(name="category_id", referencedColumnName="id", nullable=false, onDelete="CASCADE") * @ORM\Id * * @var Category * @access protected */ protected $category_id; public function getUser() { return $this-&gt;user; } /** * Set User * * @param User $user * @return User */ public function setUser(User $user = null) { //die('setUser'); $this-&gt;user = $user; return $this; } public function getCategory() { return $this-&gt;category; } /** * Set Category * * @param Category $category * @return Category */ public function setCategory(Category $category = null) { $this-&gt;category = $category; return $this; } } </code></pre> <p>When I execute the following line, it gives back the wrong result. The wrong category pops up:</p> <p>\Doctrine\Common\Util\Debug::dump($this->getEntityManager()->find('User\Entity\User', '49')->user_usercategories); die;</p> <p>Result:</p> <pre class="lang-php prettyprint-override"><code>array(1) { [0]=&gt; object(stdClass)#452 (3) { ["__CLASS__"]=&gt; string(28) "User\Entity\UserUserCategory" ["user_id"]=&gt; string(16) "User\Entity\User" ["category_id"]=&gt; string(24) "User\Entity\UserCategory" } } </code></pre> <p>In the category_id is the medic printed, I expect the officer to get back. </p> <p>In my other user, (id=60) the category_id field is "null". So it look likes Doctrine skips the first input in my UserUserCategory, starts with the second and can't get the last category anymore. </p>
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