Symfony3 查询搜索功能DQL语句like查询

//前台页面代码    <form method="GET" action="{{ path(‘staff_index‘) }}" name="searchterm">
        <label>
            <input name="searchterm" type="text" value="" placeholder="输入名称" >
        </label>
        <input type="submit" value="查询">
    </form>

    /**
     * Lists all customer entities.
     *
     * @Route("/", name="staff_index")
     * @Method("GET")
     * @Template()
     */
    public function indexAction(Request $request)
    {　　　　
        $em = $this->getDoctrine()->getManager();//实体管理
        $searchterm = $request->get(‘searchterm‘);//页面参数获取
        $page = $request->query->getInt(‘page‘,1);
        $query = $em->getRepository(‘XinXiBundle:Customer‘)//实体查询
            ->createQueryBuilder(‘u‘);
        if (!null == $searchterm){//如果参数不为空就执行like查询
            $query->where(
                $query->expr()->like(‘u.name‘, ‘:user‘)
            )
                ->setParameter(‘user‘,‘%‘.$searchterm.‘%‘)
                ->getQuery()
                ->getResult();
        }else{
            $query->orderBy(‘u.id‘,‘desc‘) //否则查询所有列表
            ->getQuery();
        }

        $pagination = $this->get(‘knp_paginator‘) //分页功能
            ->paginate($query,
                $page,5);
        return [
            ‘pagination‘ => $pagination,
        ];
    }

多个条件查询时使用 andWhere 如下:

        $em = $this->getDoctrine()->getManager();
        $searchterm = $request->get(‘searchterm‘);
        $page = $request->query->getInt(‘page‘,1);
        $query = $em->getRepository(‘XinXiBundle:Customer‘)
            ->createQueryBuilder(‘u‘);

        if (!null == $searchterm){
            $query
                ->andWhere($query->expr()->like(‘u.name‘, ‘:user‘))
                ->andWhere(‘u.status = :status‘)
                ->setParameter(‘status‘,true)
                ->setParameter(‘user‘,‘%‘.$searchterm.‘%‘)
                ->getQuery()
                ->getResult();

        }else{
            $query->orderBy(‘u.id‘,‘desc‘)
                ->where(‘u.status = :status‘)
                ->setParameter(‘status‘,true)
            ->getQuery();
        }

实体关联查询

  $em = $this->getDoctrine()->getManager();
        $searchterm = $request->get(‘searchterm‘);
        $page = $request->query->getInt(‘page‘, 1);
        $query = $em->getRepository(‘XinXiBundle:Finance‘)
            ->createQueryBuilder(‘f‘);
        if (!null == $searchterm) {
            $query
                ->join(‘f.customer‘ , ‘customer‘)  //关联实体属性 现在别名为customer
                ->andWhere($query->expr()->like(‘customer.name‘, ‘:name‘))//此时再使用customer.属性值进行like查询
                ->andWhere(‘f.status = :status‘)
                ->setParameter(‘status‘, true)
                ->setParameter(‘name‘, ‘%‘ . $searchterm . ‘%‘)
                ->orderBy(‘f.id‘, ‘desc‘)
                ->getQuery()
                ->getResult();