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Link authors and books

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This commit is contained in:
Dmitry Isaenko 2024-01-17 19:40:03 +03:00
parent 95e26e287a
commit 261d5b3ae4
4 changed files with 9 additions and 11 deletions
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6
src/main/java/ru/redrise/marinesco/data/BookRepository.java
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@ -5,16 +5,10 @@ import java.util.List;
import org.springframework.data.jpa.repository.JpaRepository; import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository; import org.springframework.stereotype.Repository;
import ru.redrise.marinesco.library.Author;
import ru.redrise.marinesco.library.Book; import ru.redrise.marinesco.library.Book;
@Repository @Repository
public interface BookRepository extends JpaRepository<Book, Integer>{ public interface BookRepository extends JpaRepository<Book, Integer>{
List<Book> findBySeriesContainingIgnoreCase(String title); List<Book> findBySeriesContainingIgnoreCase(String title);
List<Book> findByTitleContainingIgnoreCase(String title); List<Book> findByTitleContainingIgnoreCase(String title);
List<Book> findAllByAuthorsContains(Author author);
} }

6
src/main/java/ru/redrise/marinesco/library/Author.java
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@ -1,7 +1,10 @@
package ru.redrise.marinesco.library; package ru.redrise.marinesco.library;
import java.util.List;
import jakarta.persistence.Entity; import jakarta.persistence.Entity;
import jakarta.persistence.Id; import jakarta.persistence.Id;
import jakarta.persistence.ManyToMany;
import lombok.AccessLevel; import lombok.AccessLevel;
import lombok.Data; import lombok.Data;
import lombok.NoArgsConstructor; import lombok.NoArgsConstructor;
@ -14,6 +17,9 @@ public class Author {
private Long id; private Long id;
private String authorName; private String authorName;
@ManyToMany(mappedBy = "authors")
private List<Book> books;
public Author(String name){ public Author(String name){
this.authorName = name; this.authorName = name;
this.id = (long) name.hashCode(); this.id = (long) name.hashCode();

1
src/main/java/ru/redrise/marinesco/library/Book.java
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@ -8,6 +8,7 @@ import java.util.Set;
import jakarta.persistence.Entity; import jakarta.persistence.Entity;
import jakarta.persistence.Id; import jakarta.persistence.Id;
import jakarta.persistence.JoinColumn;
import jakarta.persistence.ManyToMany; import jakarta.persistence.ManyToMany;
import jakarta.persistence.Transient; import jakarta.persistence.Transient;
import lombok.AccessLevel; import lombok.AccessLevel;

7
src/main/java/ru/redrise/marinesco/library/web/AuthorController.java
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@ -9,7 +9,6 @@ import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMapping;
import ru.redrise.marinesco.data.AuthorRepository; import ru.redrise.marinesco.data.AuthorRepository;
import ru.redrise.marinesco.data.BookRepository;
import ru.redrise.marinesco.library.Author; import ru.redrise.marinesco.library.Author;
import ru.redrise.marinesco.library.Book; import ru.redrise.marinesco.library.Book;
@ -17,11 +16,9 @@ import ru.redrise.marinesco.library.Book;
@RequestMapping("/author") @RequestMapping("/author")
public class AuthorController { public class AuthorController {
private AuthorRepository authorRepository; private AuthorRepository authorRepository;
private BookRepository bookRepository;
public AuthorController(AuthorRepository authorRepository, BookRepository bookRepository){ public AuthorController(AuthorRepository authorRepository){
this.authorRepository = authorRepository; this.authorRepository = authorRepository;
this.bookRepository = bookRepository;
} }
@GetMapping("/{authorId}") @GetMapping("/{authorId}")
@ -33,7 +30,7 @@ public class AuthorController {
return "author"; return "author";
} }
List<Book> books = bookRepository.findAllByAuthorsContains(author); List<Book> books = author.getBooks();
model.addAttribute("author", author); model.addAttribute("author", author);
model.addAttribute("books", books); model.addAttribute("books", books);