feat : adds postTags entity

rajadilipkolli · Nov 10, 2023 · 5860cbc · 5860cbc
1 parent f0b3882
commit 5860cbc
Show file tree

Hide file tree

Showing 7 changed files with 165 additions and 3 deletions.
diff --git a/graphql/boot-graphql-querydsl/.yo-rc.json b/graphql/boot-graphql-querydsl/.yo-rc.json
@@ -8,6 +8,6 @@
     "features": [],
     "buildTool": "maven",
     "packageFolder": "com/example/graphql/querydsl",
-    "liquibaseMigrationCounter": 4
+    "liquibaseMigrationCounter": 5
   }
 }
diff --git a/graphql/boot-graphql-querydsl/src/main/java/com/example/graphql/querydsl/entities/Post.java b/graphql/boot-graphql-querydsl/src/main/java/com/example/graphql/querydsl/entities/Post.java
@@ -2,6 +2,7 @@
 
 import jakarta.persistence.*;
 import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.List;
 import java.util.Objects;
 import lombok.AllArgsConstructor;
@@ -33,6 +34,9 @@ public class Post {
     @OneToOne(cascade = CascadeType.ALL, mappedBy = "post", orphanRemoval = true, fetch = FetchType.LAZY)
     private PostDetails details;
 
+    @OneToMany(mappedBy = "post", cascade = CascadeType.ALL, orphanRemoval = true)
+    private List<PostTag> tags = new ArrayList<>();
+
     public Post setId(Long id) {
         this.id = id;
         return this;
@@ -61,6 +65,14 @@ public Post setDetails(PostDetails details) {
         return this;
     }
 
+    public Post setTags(List<PostTag> postTags) {
+        if (postTags == null) {
+            postTags = new ArrayList<>();
+        }
+        this.tags = postTags;
+        return this;
+    }
+
     public void addComment(PostComment comment) {
         this.comments.add(comment);
         comment.setPost(this);
@@ -81,6 +93,23 @@ public void removeDetails() {
         this.details = null;
     }
 
+    public void addTag(Tag tag) {
+        PostTag postTag = new PostTag(this, tag);
+        this.tags.add(postTag);
+    }
+
+    public void removeTag(Tag tag) {
+        for (Iterator<PostTag> iterator = this.tags.iterator(); iterator.hasNext(); ) {
+            PostTag postTag = iterator.next();
+
+            if (postTag.getPost().equals(this) && postTag.getTag().equals(tag)) {
+                iterator.remove();
+                postTag.setPost(null);
+                postTag.setTag(null);
+            }
+        }
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;

diff --git a/...ql/boot-graphql-querydsl/src/main/java/com/example/graphql/querydsl/entities/PostTag.java b/...ql/boot-graphql-querydsl/src/main/java/com/example/graphql/querydsl/entities/PostTag.java
@@ -0,0 +1,52 @@
+package com.example.graphql.querydsl.entities;
+
+import jakarta.persistence.*;
+import java.time.LocalDateTime;
+import java.util.Objects;
+import lombok.Getter;
+import lombok.Setter;
+
+@Entity(name = "PostTag")
+@Table(name = "post_tags")
+@Setter
+@Getter
+public class PostTag {
+
+    @EmbeddedId
+    private PostTagId id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @MapsId("postId")
+    private Post post;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @MapsId("tagId")
+    private Tag tag;
+
+    @Column(name = "created_on")
+    private LocalDateTime createdOn = LocalDateTime.now();
+
+    public PostTag(Post post, Tag tag) {
+        this.post = post;
+        this.tag = tag;
+        this.id = new PostTagId(post.getId(), tag.getId());
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+        PostTag that = (PostTag) o;
+        return Objects.equals(this.post, that.post) && Objects.equals(this.tag, that.tag);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.post, this.tag);
+    }
+}
diff --git a/.../boot-graphql-querydsl/src/main/java/com/example/graphql/querydsl/entities/PostTagId.java b/.../boot-graphql-querydsl/src/main/java/com/example/graphql/querydsl/entities/PostTagId.java
@@ -0,0 +1,45 @@
+package com.example.graphql.querydsl.entities;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Embeddable;
+import java.io.Serial;
+import java.io.Serializable;
+import java.util.Objects;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Embeddable
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+public class PostTagId implements Serializable {
+
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+    @Column(name = "post_id")
+    private Long postId;
+
+    @Column(name = "tag_id")
+    private Long tagId;
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        PostTagId that = (PostTagId) o;
+        return Objects.equals(this.postId, that.postId) && Objects.equals(this.tagId, that.tagId);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.postId, this.tagId);
+    }
+}
diff --git a/...l/boot-graphql-querydsl/src/main/java/com/example/graphql/querydsl/mapper/PostMapper.java b/...l/boot-graphql-querydsl/src/main/java/com/example/graphql/querydsl/mapper/PostMapper.java
@@ -27,6 +27,7 @@ public interface PostMapper {
     void mapPostWithRequest(UpdatePostRequest updatePostRequest, @MappingTarget Post post);
 
     @Mapping(target = "createdOn", source = "details.createdOn")
+    @Mapping(target = "postCommentResponses", source = "comments")
     PostResponse toResponse(Post post);
 
     List<PostResponse> toResponseList(List<Post> postList);

diff --git a/...-graphql-querydsl/src/main/resources/db/changelog/migration/05-create_post_tags_table.xml b/...-graphql-querydsl/src/main/resources/db/changelog/migration/05-create_post_tags_table.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- https://docs.liquibase.com/concepts/changelogs/xml-format.html -->
+<databaseChangeLog
+        xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
+         http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-4.20.xsd">
+
+    <property  name="string.type"  value="varchar(255)"  dbms="!postgresql"/>
+    <property  name="string.type"  value="text"  dbms="postgresql"/>
+
+    <changeSet author="app" id="createTable-post_tags">
+        <createTable tableName="post_tags">
+            <column name="created_on" type="DATETIME"/>
+            <column name="post_id" type="BIGINT">
+                <constraints nullable="false" primaryKey="true" primaryKeyName="pk_post_tag"/>
+            </column>
+            <column name="tag_id" type="BIGINT">
+                <constraints nullable="false" primaryKey="true" primaryKeyName="pk_post_tag"/>
+            </column>
+        </createTable>
+
+        <addForeignKeyConstraint baseColumnNames="post_id" baseTableName="post_tags" constraintName="FK_POST_TAG_ON_POST"
+                                 referencedColumnNames="id" referencedTableName="posts"/>
+        <addForeignKeyConstraint baseColumnNames="tag_id" baseTableName="post_tags" constraintName="FK_POST_TAG_ON_TAG"
+                                 referencedColumnNames="id" referencedTableName="tags"/>
+    </changeSet>
+</databaseChangeLog>
diff --git a/...querydsl/src/test/java/com/example/graphql/querydsl/web/controllers/PostControllerIT.java b/...querydsl/src/test/java/com/example/graphql/querydsl/web/controllers/PostControllerIT.java
@@ -80,7 +80,7 @@ void shouldCreateNewPost() throws Exception {
                 "New Post",
                 "New Content",
                 "Junit",
-                List.of(new PostCommentRequest("New Review"), new PostCommentRequest("Second Review")));
+                List.of(new PostCommentRequest("First Review"), new PostCommentRequest("Second Review")));
         this.mockMvc
                 .perform(post("/api/posts")
                         .contentType(MediaType.APPLICATION_JSON)
@@ -89,7 +89,14 @@ void shouldCreateNewPost() throws Exception {
                 .andExpect(header().exists(HttpHeaders.LOCATION))
                 .andExpect(jsonPath("$.id", notNullValue()))
                 .andExpect(jsonPath("$.title", is(postRequest.title())))
-                .andExpect(jsonPath("$.content", is(postRequest.content())));
+                .andExpect(jsonPath("$.content", is(postRequest.content())))
+                .andExpect(jsonPath(
+                        "$.postCommentResponses.size()",
+                        is(postRequest.postCommentRequests().size())))
+                .andExpect(jsonPath("$.postCommentResponses[0].id", notNullValue()))
+                .andExpect(jsonPath("$.postCommentResponses[0].review", is("First Review")))
+                .andExpect(jsonPath("$.postCommentResponses[1].id", notNullValue()))
+                .andExpect(jsonPath("$.postCommentResponses[1].review", is("Second Review")));
     }
 
     @Test