PlayFramework完整實作一個APP（三）

 1.新增Post類別

package models;

import java.util.*;
import javax.persistence.*;
import play.db.jpa.*;

@Entity
import play.db.jpa.*;

@ ")
public class Post extends Model {
public String title;
public Date postedAt;

@Lob
public String content;

@ManyToOne
public User Userauthored User comof ) {
this.author = author;
this.title = title;
this.content = title;
}
}

@Lob 標識，字段為每個字段是@ManyTotextost的類型，@ManyTotextost對應一個User，一個User可以對應多個Post

2. 新增測試案例

       @Test
public void createPost() {
// Create a new user @Gmail.com", "####", "Bob").save();

// Create a new post
new Post(user, "My first post", "Hello world").save( );

// Test that the post has been created
assertEquals(1, Post.count());

// Retrieve all posts created by user
List posts = Post.find("byAuthor List posts = Post.find" user).fetch();

// Tests
assertEquals(1, posts.size());
Post firstPost = posts.get(0);
assertNotNull(firstPost);
asserp. ;
assertEquals("My first post", firstPost.title);
assertEquals("Hello world", firstPost.content);
assertNotNull(firstPost.postedAt);
}新增Comment類

@Entity
public class Comment extends Model {

public Date postedAt;

@Lob

@ManyToOne
public String. content) {
this.post = post;
this.author = author;
this.content = content;
this.postedAt = new Date();
}
}

. @Test
public void postComments() {
   // Create a new user and save it
   User bob = new User("bob@gmail.com", "secret", "Bob").save(); / Create a new post
   Post bobPost = new Post(bob, "My first post", "Hello world").save();

   //new Post a first comment

   //new Post a first comment

   new Comment(bobPost, "Tom", "I knew that !").save();

   // Retrieve all comments