diff -r c8790bc6417a -r 9f427e7c88f9 src/Company/BaseBundle/Entity/Document.php
--- a/src/Company/BaseBundle/Entity/Document.php	Wed Dec 14 23:55:33 2011 +0100
+++ b/src/Company/BaseBundle/Entity/Document.php	Mon Dec 19 17:50:05 2011 +0100
@@ -3,7 +3,7 @@
 namespace Company\BaseBundle\Entity;
 
 use Doctrine\ORM\Mapping as ORM;
-use IRI\Bundle\WikiTagBundle\Model\DocumentInterface;
+use Doctrine\Common\Collections\ArrayCollection;
 
 /**
  * Company\BaseBundle\Entity\Document
@@ -36,6 +36,18 @@
      * @ORM\Column(name="description", type="text")
      */
     private $description;
+    
+    /**
+     * @ORM\ManyToMany(targetEntity="Category")
+     * @ORM\JoinTable(name="documents_categories",
+     *      joinColumns={@ORM\JoinColumn(name="document_id", referencedColumnName="id")},
+     *      inverseJoinColumns={@ORM\JoinColumn(name="category_id", referencedColumnName="id")}
+     *      )
+     * @ORM\OrderBy({"name" = "ASC"})
+     *
+     * @var \Doctrine\Common\Collections\ArrayCollection
+     */
+    private $categories;
 
 
     /**
@@ -88,4 +100,33 @@
     {
         return $this->description;
     }
+    
+    /**
+     * Get categories list
+     *
+     * @return \Doctrine\Common\Collections\ArrayCollection
+     */
+    public function getCategories()
+    {
+        return $this->categories;
+    }
+    
+    /**
+     * get the list of categories as string
+     *
+     */
+    public function getCategoriesStr()
+    {
+        $res = array();
+        foreach($this->getCategories() as $cat) {
+            $res[] = $cat->getName();
+        }
+        return implode(",", $res);
+    }
+    
+    
+    public function __construct() {
+        $this->categories = new \Doctrine\Common\Collections\ArrayCollection();
+    }
+        
 }
\ No newline at end of file