Ebean如何獲​​取從在遊戲框架

Question

我有一個SQL查詢關係的多個表中的數據，我不知道我可以通過讀取記錄來自兩個不同的表用它玩框架：

SELECT a.Id as DriverId, a.names as Drivernames, b.bill_no as driverBillNumber, b.DriverId from drivers a join StoreBook b on a.Id = b.DriverId where a.phone_number ='9889' 

我有兩個mysql表drivers和Storebook。我能夠從StoreBook表中獲取數據列表，但無法訪問驅動程序表進行加入。

看看我的代碼：

@Entity 
@Table(name = "StoreBook") 
public class Store extends Model { 
@Id 
public Long id; 
@Constraints.Required 
public String bill_no; 
public int amount; 
public String Created_at; 


public static Model.Finder<Long, Store> find = new Finder(Long.class, Store.class); 


public static List<Store> mystore() { 
    return find.all();  
    } 
    } 

驅動程序表：

@Entity 
    @Table(name ="drivers") 
    public class New_driver extends Model{ 
    @Id 
    @GeneratedValue(strategy = GenerationType.AUTO) 
    @Column(name = "Id", updatable = false, nullable = false) 
    public Long Id; 
    @Column 
    @Constraints.Required 
    public String names; 
    New_driver(String names) {  
    this.names = names; 
    } 
    public static void create(New_driver account) { 
    account.save(); 
    } 
    } 

下面的代碼在控制器中使用：

public class showBooks_history extends Controller { 
    public static Result(){ 
    Form<StoreBook> result = form(StoreBook.class); 
    return ok(showbooks.render(StoreBook.mystore(), result)); 
     } 
     } 

代碼我使用的觀點是HTML模板斯卡拉：

 @(formList: List[Store],form: Form[Store])) 
    @main_dashboard("welcome") 
     { 
      ..... 
      <table class="table table-striped table-hover"> 
         <thead> 
          <tr> 
           <th>Driver names</th> 
           <th>Bill number</th> 
          </tr> 
          </thead> 
          <tbody> 
          @for(i <- Store.mystore()) { 
           <tr> 
            <td><i>names ???</i></td> 
            <td><i>@i.bill_no</i></td> 
           </tr> 
           } 
           .... 

Answer 1

你不必在驅動程序的StoreBook關係， 首先應指定關係類型(1-1, 1-m, m-m) 例如：

//in StoreBook.java model 
@OneToOne 
public Driver driver; 

然後在模板：

<tr> 
    <td><i>@i.driver.names</i></td> 
    <td><i>@i.bill_no</i></td> 
</tr>