问规则大小写WHEN THEN ELSE NULL

EN

public function countAverageOdd($user) {
    return $this->getEntityManager()
                    ->createQuery('
                            SELECT
                                avg(
                                    CASE
                                        WHEN p.homeAway = \'h\' AND p.moneyline IS NOT NULL THEN m.home
                                        WHEN p.homeAway = \'d\' AND p.moneyline IS NOT NULL THEN m.draw
                                        WHEN p.homeAway = \'e\' AND p.moneyline IS NOT NULL THEN m.away
                                        WHEN p.homeAway = \'h\' AND p.spread IS NOT NULL THEN s.home
                                        WHEN p.homeAway = \'e\' AND p.spread IS NOT NULL THEN s.away
                                        WHEN p.homeAway = \'h\' AND p.total IS NOT NULL THEN t.over
                                        WHEN p.homeAway = \'e\' AND p.total IS NOT NULL THEN t.under
                                    ELSE NULL
                                    END
                                    )
                            FROM
                                AppBundle:Predictions p
                                LEFT JOIN p.moneyline m
                                LEFT JOIN p.spread s
                                LEFT JOIN p.total t
                            WHERE p.user = :user ')
                    ->setParameter(":user", $user)
                    ->setMaxResults(1)
                    ->getSingleScalarResult();
}