Doctrine 2: Matches entity

<?php
namespace models;

/**
 * @Entity
 * @Table(name="matches")
 */
class Matches {
    /**
     * @Id
     * @Column(type="integer", nullable=false)
     * @GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @ManyToOne(targetEntity="Season", inversedBy="matches")
     * @Column(type="integer", nullable=false)
     */
    protected $season_id;

    /**
     * @Column(type="integer", nullable=false)
     */
    protected $league_id;

    /**
     * @Column(type="datetime", nullable=false)
     */
    protected $play_date;

    /**
     * @Column(type="integer", nullable=false)
     */
    protected $play_time;

    /**
     * @Column(type="integer", nullable=false)
     */
    protected $week;

    /**
     * @Column(type="integer", nullable=false)
     */
    protected $status;

    /**
     * @OneToMany(targetEntity="ClubsMatches", mappedBy="match_id")
     */
    protected $clubsmatches;



    // GETTERS & SETTERS
    public function setSeason_id(Season $season) {
        if( $season === null || $season instanceof Season ) {
            $this->season_id = $season;
        } else {
            throw new InvalidArgumentException($season . ' must be instance of Entity\Season or null');
        }
    }

    public function getSeason_id() {
        return $this->season_id;
    }

    public function setLeague_id($id) {
        $this->league_id = $id;
    }

    public function getLeague_id() {
        return $this->league_id;
    }

    public function setPlay_date($date) {
        $this->play_date = $date;
    }

    public function getPlay_date() {
        return $this->play_date;
    }

    public function setPlay_time($time) {
        $this->play_time = $time;
    }

    public function getPlay_time() {
        return $this->play_time;
    }

    public function setWeek($week) {
        $this->week = $week;
    }

    public function getWeek() {
        return $this->week;
    }

    public function setStatus($status) {
        $this->status = $status;
    }

    public function getStats() {
        return $this->status;
    }
}