<?php

use \Doctrine\Common\Collections\ArrayCollection;


/**
 * @Entity @Table(name="book")
 */
class Book
{
    /** @Id @Column(type="integer") @GeneratedValue */
    private $id;

    /** @Column(type="string",length="80") */
    private $title;

    /** @Column(type="string",length="80") */
    private $genre;

    /** @OneToMany(targetEntity="BookOption", mappedBy="book", cascade={"persist"}) */
    private $options;


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

    public function addOption(BookOptions $option)
    {
        $this->options->add($option);
        $option->book = $this;
        return $option;
    }


    public function __get($name)
    {
        if(property_exists($this, $name))
        {
            return $this->$name;
        }
    }

    public function __set($name, $value)
    {
        if(property_exists($this, $name))
        {
            $this->$name = $value;
        }
    }
}


/**
 * @Entity @Table(name="book_options")
 */
class BookOption
{
    /** @Id @Column(type="integer") @GeneratedValue */
    private $id;

    /**
     * @ManyToOne(targetEntity="OptionType")
     * @JoinColumn(name="type",referencedColumnName="type", cascade={"persist"})
     */
    private $type;

    /**
     * @ManyToOne(targetEntity="Book", inversedBy="options")
     * @JoinColumn(name="book_id", referencedColumnName="id")
     */
    private $book;

    /** @Column(type="string") */
    private $value;


    public function __construct(OptionType $type)
    {
        $this->type = $type;
    }



    public function setBook(Book $book)
    {
        if ($book->options->contains($this)) {
            $this->book = $book;
        }
    }



    public function __get($name)
    {
        if(property_exists($this, $name))
        {
            return $this->$name;
        }
    }

    public function __set($name, $value)
    {
        if(property_exists($this, $name))
        {
            $this->$name = $value;
        }
    }

}



/**
 * @Entity @Table(name="book_option_types")
 */
class OptionType
{
    /** @Id @Column(type="string",length="80") */
    private $type;

    /** @Column(type="string",length="80") */
    private $description;


    public function __construct($type)
    {
        $this->type = $type;
    }



    public function __get($name)
    {
        if(property_exists($this, $name))
        {
            return $this->$name;
        }
    }

    public function __set($name, $value)
    {
        if(property_exists($this, $name))
        {
            $this->$name = $value;
        }
    }

}



    $book = new Book();
    $book->title = "Bambi";
    $book->genre = "Pohádka";

    $preservance = $entityManager->getRepository('OptionType')->find('Preservance');
    $book->addOption(new BookOption($preservance))->value('Great');

    $color = $entityManager->getRepository('OptionType')->find('Color');
    $book->addOption(new BookOption($color))->value('Green');

    $entityManager->persist($book);
    $entityManager->flush();