像查询

Question

你好我有问题我得到回购和控制器女巫返回集合中的所有对象，但我想在收集中搜索＆＃34;地址＆＃34;字段我的数据看起来像＆＃34; adres＆＃34; ＆＃34;一些adres＆＃34; booknr＆＃34; booknr＆＃34;我想创建具有一些＆＃34;字符串＆＃34;的休息返回项目。在字段中这里是我的代码

trait BooksRepo {
  def find()(implicit ec: ExecutionContext): Future[List[JsObject]]

  def findbyquery()(implicit ec: ExecutionContext): Future[List[JsObject]]

  def update(selector: BSONDocument, update: BSONDocument)(implicit ec: ExecutionContext): Future[WriteResult]

  def remove(document: BSONDocument)(implicit ec: ExecutionContext): Future[WriteResult]

  def save(document: BSONDocument)(implicit ec: ExecutionContext): Future[WriteResult]
}

class BooksMongoRepo(reactiveMongoApi: ReactiveMongoApi) extends PostRepo {
  // BSON-JSON conversions
  import play.modules.reactivemongo.json._

  protected def collection =
    reactiveMongoApi.db.collection[JSONCollection]("books")
//  val query = Json.obj("adres" -> Json.obj({$regex: /^ABC/i}))


  def find()(implicit ec: ExecutionContext): Future[List[JsObject]] =
    collection.find(Json.obj()).cursor[JsObject](ReadPreference.Primary).collect[List]()

//  def findbyquery()(implicit ec: ExecutionContext): Future[List[JsObject]]= collection.find(query).cursor[JsObject](ReadPreference.Primary).collect[List]()

Controler返回所有书籍

 def list = Action.async { implicit request =>
    booksRepo.find()
      .map(posts => Ok(Json.toJson(posts.reverse)))
      .recover { case PrimaryUnavailableException => InternalServerError("Please install MongoDB") }
  }