mvc fix author and type names problem

SpringApp/library/src/main/java/com/ip/library/controllers/books/BookController.java

@@ -1,6 +1,7 @@
 package com.ip.library.controllers.books;
 
 import java.util.Map;
+import java.util.List;
 
 import org.modelmapper.ModelMapper;
 import org.springframework.stereotype.Controller;
@@ -14,6 +15,7 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.servlet.mvc.support.RedirectAttributes;
 
+import com.ip.library.controllers.authors.AuthorEntity;
 import com.ip.library.controllers.types.TypeService;
 import com.ip.library.core.api.PageAttributesMapper;
 import com.ip.library.core.configuration.Constants;
@@ -43,7 +45,18 @@ public class BookController {
     
 	private BookDto toBookDto (BookEntity entity) {
 		BookDto bookDto = modelMapper.map(entity, BookDto.class);
-        bookDto.setAuthorId(entity.getAuthorsBooks().stream().map(x -> x.getAuthor().getId()).toList());
+        List<AuthorEntity> authors = entity.getAuthorsBooks().stream().map(x -> x.getAuthor()).toList();
+        bookDto.setAuthorsId(authors.stream().map(x -> x.getId()).toList());
+        bookDto.setTypeName(entity.getType().getName());
+        StringBuilder authorName = new StringBuilder();
+        for (AuthorEntity authorEntity : authors) {
+            authorName.append(", ").append(authorEntity.getName());
+        }
+        if (authorName.length() > 0) {
+            bookDto.setAuthorName(authorName.toString().substring(2));
+        } else {
+            bookDto.setAuthorName("Неизвестен");
+        }
         return bookDto;
 	}
 

SpringApp/library/src/main/java/com/ip/library/controllers/books/BookDto.java

@@ -11,6 +11,10 @@ import jakarta.validation.constraints.NotNull;
 public class BookDto {
     @JsonProperty(access = JsonProperty.Access.READ_ONLY)
     private Long id;
+    @JsonProperty(access = JsonProperty.Access.READ_ONLY)
+    private String authorName;
+    @JsonProperty(access = JsonProperty.Access.READ_ONLY)
+    private String typeName;
     @NotBlank
     private String name;
     @NotNull
@@ -27,6 +31,22 @@ public class BookDto {
         this.id = id;
     }
 
+    public String getAuthorName() {
+        return authorName;
+    }
+
+    public void setAuthorName(String authorName) {
+        this.authorName = authorName;
+    }
+
+    public String getTypeName() {
+        return typeName;
+    }
+
+    public void setTypeName(String typeName) {
+        this.typeName = typeName;
+    }
+
     public String getName() {
         return name;
     }
@@ -47,7 +67,7 @@ public class BookDto {
         return authorsId;
     }
 
-    public void setAuthorId(List<Long> authorsId) {
+    public void setAuthorsId(List<Long> authorsId) {
         this.authorsId = authorsId;
     }
 }

SpringApp/library/src/main/resources/templates/book.html

@@ -21,6 +21,7 @@
                             <th scope="col" class="w-10">ID</th>
                             <th scope="col" class="w-auto">Название</th>
                             <th scope="col" class="w-auto">Жанр</th>
+                            <th scope="col" class="w-auto">Автор</th>
                             <th scope="col" class="w-10"></th>
                             <th scope="col" class="w-10"></th>
                         </tr>
@@ -29,7 +30,8 @@
                         <tr th:each="book : ${items}">
                             <th scope="row" th:text="${book.id}"></th>
                             <td th:text="${book.name}"></td>
-                            <td th:text="${book.type.name}"></td>
+                            <td th:text="${book.typeName}"></td>
+                            <td th:text="${book.authorName}"></td>
                             <td>
                                 <form th:action="@{/api/1.0/book/edit/{id}(id=${book.id})}" method="get">
                                     <input type="hidden" th:name="page" th:value="${page}">