From 844c86c3a24612cd4da7678ae2eba751d371db60 Mon Sep 17 00:00:00 2001
From: Onkar Agnihotri <onkaragnihotri9@gmail.com>
Date: Tue, 16 May 2023 17:12:07 +0530
Subject: [PATCH 1/6] code implemented

---
 .../java/guru/springframework/spring5webapp/model/Author.java   | 2 ++
 .../java/guru/springframework/spring5webapp/model/Book.java     | 2 ++
 2 files changed, 4 insertions(+)
 create mode 100644 src/main/java/guru/springframework/spring5webapp/model/Author.java
 create mode 100644 src/main/java/guru/springframework/spring5webapp/model/Book.java

diff --git a/src/main/java/guru/springframework/spring5webapp/model/Author.java b/src/main/java/guru/springframework/spring5webapp/model/Author.java
new file mode 100644
index 0000000000..0f76c50053
--- /dev/null
+++ b/src/main/java/guru/springframework/spring5webapp/model/Author.java
@@ -0,0 +1,2 @@
+package guru.springframework.spring5webapp;public class Author {
+}
diff --git a/src/main/java/guru/springframework/spring5webapp/model/Book.java b/src/main/java/guru/springframework/spring5webapp/model/Book.java
new file mode 100644
index 0000000000..682447a020
--- /dev/null
+++ b/src/main/java/guru/springframework/spring5webapp/model/Book.java
@@ -0,0 +1,2 @@
+package guru.springframework.spring5webapp.model;public class Book {
+}

From 1a71d2088bd3712a2b663de29a5b541307ee61ae Mon Sep 17 00:00:00 2001
From: Onkar Agnihotri <onkaragnihotri9@gmail.com>
Date: Tue, 16 May 2023 17:19:50 +0530
Subject: [PATCH 2/6] Models created

---
 .../spring5webapp/model/Author.java           | 75 ++++++++++++++++++-
 .../spring5webapp/model/Book.java             | 67 ++++++++++++++++-
 2 files changed, 140 insertions(+), 2 deletions(-)

diff --git a/src/main/java/guru/springframework/spring5webapp/model/Author.java b/src/main/java/guru/springframework/spring5webapp/model/Author.java
index 0f76c50053..73a50a3f1e 100644
--- a/src/main/java/guru/springframework/spring5webapp/model/Author.java
+++ b/src/main/java/guru/springframework/spring5webapp/model/Author.java
@@ -1,2 +1,75 @@
-package guru.springframework.spring5webapp;public class Author {
+package guru.springframework.spring5webapp.model;
+
+import org.hibernate.annotations.GeneratorType;
+
+import javax.persistence.*;
+import java.util.Objects;
+import java.util.Set;
+
+@Entity
+public class Author {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+    private String firstName;
+    private String lastName;
+    @ManyToMany(mappedBy = "authors")
+    private Set<Book> books;
+
+    public Author(Long id) {
+        this.id = id;
+    }
+
+    public Author(Long id, String firstName, String lastName, Set<Book> books) {
+        this.id = id;
+        this.firstName = firstName;
+        this.lastName = lastName;
+        this.books = books;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public Set<Book> getBooks() {
+        return books;
+    }
+
+    public void setBooks(Set<Book> books) {
+        this.books = books;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Author author = (Author) o;
+        return Objects.equals(id, author.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id);
+    }
 }
diff --git a/src/main/java/guru/springframework/spring5webapp/model/Book.java b/src/main/java/guru/springframework/spring5webapp/model/Book.java
index 682447a020..80a98ccea5 100644
--- a/src/main/java/guru/springframework/spring5webapp/model/Book.java
+++ b/src/main/java/guru/springframework/spring5webapp/model/Book.java
@@ -1,2 +1,67 @@
-package guru.springframework.spring5webapp.model;public class Book {
+package guru.springframework.spring5webapp.model;
+
+import javax.persistence.*;
+import java.util.Objects;
+import java.util.Set;
+
+@Entity
+public class Book {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+    private String title;
+    private String isbn;
+
+    @ManyToMany
+    @JoinTable(name = "author_book",
+            joinColumns = @JoinColumn(name = "book_id"),
+            inverseJoinColumns = @JoinColumn(name = "author_id"))
+    private Set<Author> authors;
+
+    public Book() {
+    }
+
+    public Book(Long id, String title, String isbn) {
+        this.id = id;
+        this.title = title;
+        this.isbn = isbn;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getIsbn() {
+        return isbn;
+    }
+
+    public void setIsbn(String isbn) {
+        this.isbn = isbn;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Book book = (Book) o;
+        return Objects.equals(id, book.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id);
+    }
 }

From fb1a410988f18250d4549ad8ecbdb7f202a952c3 Mon Sep 17 00:00:00 2001
From: Onkar Agnihotri <onkaragnihotri9@gmail.com>
Date: Tue, 16 May 2023 17:28:22 +0530
Subject: [PATCH 3/6] Repository added

---
 .../spring5webapp/repository/AuthorRepository.java         | 7 +++++++
 .../spring5webapp/repository/BookRepository.java           | 7 +++++++
 2 files changed, 14 insertions(+)
 create mode 100644 src/main/java/guru/springframework/spring5webapp/repository/AuthorRepository.java
 create mode 100644 src/main/java/guru/springframework/spring5webapp/repository/BookRepository.java

diff --git a/src/main/java/guru/springframework/spring5webapp/repository/AuthorRepository.java b/src/main/java/guru/springframework/spring5webapp/repository/AuthorRepository.java
new file mode 100644
index 0000000000..1577c85208
--- /dev/null
+++ b/src/main/java/guru/springframework/spring5webapp/repository/AuthorRepository.java
@@ -0,0 +1,7 @@
+package guru.springframework.spring5webapp.repository;
+
+import guru.springframework.spring5webapp.model.Author;
+import org.springframework.data.repository.CrudRepository;
+
+public interface AuthorRepository extends CrudRepository<Author, Long> {
+}
diff --git a/src/main/java/guru/springframework/spring5webapp/repository/BookRepository.java b/src/main/java/guru/springframework/spring5webapp/repository/BookRepository.java
new file mode 100644
index 0000000000..477de46301
--- /dev/null
+++ b/src/main/java/guru/springframework/spring5webapp/repository/BookRepository.java
@@ -0,0 +1,7 @@
+package guru.springframework.spring5webapp.repository;
+
+import guru.springframework.spring5webapp.model.Book;
+import org.springframework.data.repository.CrudRepository;
+
+public interface BookRepository extends CrudRepository<Book, Long> {
+}

From b8ddfd8b87658de49cad9ca1736b50714856c9fe Mon Sep 17 00:00:00 2001
From: Onkar Agnihotri <onkaragnihotri9@gmail.com>
Date: Tue, 16 May 2023 17:44:51 +0530
Subject: [PATCH 4/6] Sample data loaded

---
 .../bootstrap/BootStrapData.java              | 46 +++++++++++++++++++
 .../spring5webapp/model/Author.java           | 10 ++--
 .../spring5webapp/model/Book.java             | 14 ++++--
 3 files changed, 61 insertions(+), 9 deletions(-)
 create mode 100644 src/main/java/guru/springframework/spring5webapp/bootstrap/BootStrapData.java

diff --git a/src/main/java/guru/springframework/spring5webapp/bootstrap/BootStrapData.java b/src/main/java/guru/springframework/spring5webapp/bootstrap/BootStrapData.java
new file mode 100644
index 0000000000..a937ddc36d
--- /dev/null
+++ b/src/main/java/guru/springframework/spring5webapp/bootstrap/BootStrapData.java
@@ -0,0 +1,46 @@
+package guru.springframework.spring5webapp.bootstrap;
+
+import guru.springframework.spring5webapp.model.Author;
+import guru.springframework.spring5webapp.model.Book;
+import guru.springframework.spring5webapp.repository.AuthorRepository;
+import guru.springframework.spring5webapp.repository.BookRepository;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.stereotype.Component;
+
+@Component
+public class BootStrapData implements CommandLineRunner {
+
+    private final AuthorRepository authorRepository;
+    private final BookRepository bookRepository;
+
+    public BootStrapData(AuthorRepository authorRepository, BookRepository bookRepository) {
+        this.authorRepository = authorRepository;
+        this.bookRepository = bookRepository;
+    }
+
+
+    @Override
+    public void run(String... args) throws Exception {
+        Author eric = new Author("Eric", "Evans");
+        Book book = new Book("Book_Title_1", "123456789");
+
+        eric.getBooks().add(book);
+        book.getAuthors().add(eric);
+
+        authorRepository.save(eric);
+        bookRepository.save(book);
+
+        //---------------------------
+
+        Author auther1 = new Author("Eric", "Evans");
+        Book book1 = new Book("Book_Title_1", "123456789");
+
+        auther1.getBooks().add(book1);
+        book1.getAuthors().add(auther1);
+
+        authorRepository.save(auther1);
+        bookRepository.save(book1);
+
+        System.out.println("Number of books loaded: "+bookRepository.count());
+    }
+}
diff --git a/src/main/java/guru/springframework/spring5webapp/model/Author.java b/src/main/java/guru/springframework/spring5webapp/model/Author.java
index 73a50a3f1e..11eaf88fd6 100644
--- a/src/main/java/guru/springframework/spring5webapp/model/Author.java
+++ b/src/main/java/guru/springframework/spring5webapp/model/Author.java
@@ -3,6 +3,7 @@
 import org.hibernate.annotations.GeneratorType;
 
 import javax.persistence.*;
+import java.util.HashSet;
 import java.util.Objects;
 import java.util.Set;
 
@@ -15,17 +16,14 @@ public class Author {
     private String firstName;
     private String lastName;
     @ManyToMany(mappedBy = "authors")
-    private Set<Book> books;
+    private Set<Book> books = new HashSet<>();
 
-    public Author(Long id) {
-        this.id = id;
+    public Author() {
     }
 
-    public Author(Long id, String firstName, String lastName, Set<Book> books) {
-        this.id = id;
+    public Author(String firstName, String lastName) {
         this.firstName = firstName;
         this.lastName = lastName;
-        this.books = books;
     }
 
     public Long getId() {
diff --git a/src/main/java/guru/springframework/spring5webapp/model/Book.java b/src/main/java/guru/springframework/spring5webapp/model/Book.java
index 80a98ccea5..9bf1b3b959 100644
--- a/src/main/java/guru/springframework/spring5webapp/model/Book.java
+++ b/src/main/java/guru/springframework/spring5webapp/model/Book.java
@@ -1,6 +1,7 @@
 package guru.springframework.spring5webapp.model;
 
 import javax.persistence.*;
+import java.util.HashSet;
 import java.util.Objects;
 import java.util.Set;
 
@@ -17,13 +18,20 @@ public class Book {
     @JoinTable(name = "author_book",
             joinColumns = @JoinColumn(name = "book_id"),
             inverseJoinColumns = @JoinColumn(name = "author_id"))
-    private Set<Author> authors;
+    private Set<Author> authors = new HashSet<>();
 
     public Book() {
     }
 
-    public Book(Long id, String title, String isbn) {
-        this.id = id;
+    public Set<Author> getAuthors() {
+        return authors;
+    }
+
+    public void setAuthors(Set<Author> authors) {
+        this.authors = authors;
+    }
+
+    public Book(String title, String isbn) {
         this.title = title;
         this.isbn = isbn;
     }

From d657887d2f1bc6638ef3b2b327c61c32f3006583 Mon Sep 17 00:00:00 2001
From: Onkar Agnihotri <onkaragnihotri9@gmail.com>
Date: Wed, 17 May 2023 11:13:31 +0530
Subject: [PATCH 5/6] Publisher relationship added

---
 .../bootstrap/BootStrapData.java              | 21 ++++-
 .../spring5webapp/model/Book.java             | 12 +++
 .../spring5webapp/model/Publisher.java        | 85 +++++++++++++++++++
 .../repository/PublisherRepository.java       |  7 ++
 4 files changed, 124 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/guru/springframework/spring5webapp/model/Publisher.java
 create mode 100644 src/main/java/guru/springframework/spring5webapp/repository/PublisherRepository.java

diff --git a/src/main/java/guru/springframework/spring5webapp/bootstrap/BootStrapData.java b/src/main/java/guru/springframework/spring5webapp/bootstrap/BootStrapData.java
index a937ddc36d..bf8168ad24 100644
--- a/src/main/java/guru/springframework/spring5webapp/bootstrap/BootStrapData.java
+++ b/src/main/java/guru/springframework/spring5webapp/bootstrap/BootStrapData.java
@@ -2,8 +2,10 @@
 
 import guru.springframework.spring5webapp.model.Author;
 import guru.springframework.spring5webapp.model.Book;
+import guru.springframework.spring5webapp.model.Publisher;
 import guru.springframework.spring5webapp.repository.AuthorRepository;
 import guru.springframework.spring5webapp.repository.BookRepository;
+import guru.springframework.spring5webapp.repository.PublisherRepository;
 import org.springframework.boot.CommandLineRunner;
 import org.springframework.stereotype.Component;
 
@@ -13,22 +15,37 @@ public class BootStrapData implements CommandLineRunner {
     private final AuthorRepository authorRepository;
     private final BookRepository bookRepository;
 
-    public BootStrapData(AuthorRepository authorRepository, BookRepository bookRepository) {
+    private final PublisherRepository publisherRepository;
+
+    public BootStrapData(AuthorRepository authorRepository, BookRepository bookRepository, PublisherRepository publisherRepository) {
         this.authorRepository = authorRepository;
         this.bookRepository = bookRepository;
+        this.publisherRepository = publisherRepository;
     }
 
 
     @Override
     public void run(String... args) throws Exception {
+
+        Publisher publisher = new Publisher();
+        publisher.setName("P1");
+        publisher.setCity("C1");
+        publisher.setState("S1");
+
+        publisherRepository.save(publisher);
+
         Author eric = new Author("Eric", "Evans");
         Book book = new Book("Book_Title_1", "123456789");
 
         eric.getBooks().add(book);
         book.getAuthors().add(eric);
+        book.setPublisher(publisher);
+        publisher.getBooks().add(book);
+
 
         authorRepository.save(eric);
         bookRepository.save(book);
+        publisherRepository.save(publisher);
 
         //---------------------------
 
@@ -42,5 +59,7 @@ public void run(String... args) throws Exception {
         bookRepository.save(book1);
 
         System.out.println("Number of books loaded: "+bookRepository.count());
+        System.out.println("Number of authors loaded: "+authorRepository.count());
+        System.out.println("Number of publisher loaded: "+publisherRepository.count());
     }
 }
diff --git a/src/main/java/guru/springframework/spring5webapp/model/Book.java b/src/main/java/guru/springframework/spring5webapp/model/Book.java
index 9bf1b3b959..ca5e150d34 100644
--- a/src/main/java/guru/springframework/spring5webapp/model/Book.java
+++ b/src/main/java/guru/springframework/spring5webapp/model/Book.java
@@ -14,12 +14,24 @@ public class Book {
     private String title;
     private String isbn;
 
+    @ManyToOne
+    private Publisher publisher;
+
     @ManyToMany
     @JoinTable(name = "author_book",
             joinColumns = @JoinColumn(name = "book_id"),
             inverseJoinColumns = @JoinColumn(name = "author_id"))
     private Set<Author> authors = new HashSet<>();
 
+
+    public Publisher getPublisher() {
+        return publisher;
+    }
+
+    public void setPublisher(Publisher publisher) {
+        this.publisher = publisher;
+    }
+
     public Book() {
     }
 
diff --git a/src/main/java/guru/springframework/spring5webapp/model/Publisher.java b/src/main/java/guru/springframework/spring5webapp/model/Publisher.java
new file mode 100644
index 0000000000..44db9b0ed1
--- /dev/null
+++ b/src/main/java/guru/springframework/spring5webapp/model/Publisher.java
@@ -0,0 +1,85 @@
+package guru.springframework.spring5webapp.model;
+
+import javax.persistence.*;
+import java.util.HashSet;
+import java.util.Objects;
+import java.util.Set;
+
+@Entity
+public class Publisher {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    private String name;
+    private String city;
+    private String state;
+
+    @OneToMany
+    @JoinColumn(name = "publisher_id")
+    private Set<Book> books = new HashSet<>();
+
+    public Publisher() {
+    }
+
+    public Publisher(String name, String city, String state, Set<Book> books) {
+        this.name = name;
+        this.city = city;
+        this.state = state;
+        this.books = books;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getCity() {
+        return city;
+    }
+
+    public void setCity(String city) {
+        this.city = city;
+    }
+
+    public String getState() {
+        return state;
+    }
+
+    public void setState(String state) {
+        this.state = state;
+    }
+
+    public Set<Book> getBooks() {
+        return books;
+    }
+
+    public void setBooks(Set<Book> books) {
+        this.books = books;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Publisher publisher = (Publisher) o;
+        return Objects.equals(id, publisher.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id);
+    }
+}
diff --git a/src/main/java/guru/springframework/spring5webapp/repository/PublisherRepository.java b/src/main/java/guru/springframework/spring5webapp/repository/PublisherRepository.java
new file mode 100644
index 0000000000..5c35add58f
--- /dev/null
+++ b/src/main/java/guru/springframework/spring5webapp/repository/PublisherRepository.java
@@ -0,0 +1,7 @@
+package guru.springframework.spring5webapp.repository;
+
+import guru.springframework.spring5webapp.model.Publisher;
+import org.springframework.data.repository.CrudRepository;
+
+public interface PublisherRepository extends CrudRepository<Publisher, Long> {
+}

From 58c740b64389434327587f8caf1e1b96570a9261 Mon Sep 17 00:00:00 2001
From: Onkar Agnihotri <onkaragnihotri9@gmail.com>
Date: Thu, 18 May 2023 15:13:27 +0530
Subject: [PATCH 6/6] Thymleaf UI added

---
 .../bootstrap/BootStrapData.java              | 12 ++++++++++
 .../controller/BookController.java            | 22 +++++++++++++++++
 src/main/resources/application.properties     |  1 +
 src/main/resources/templates/list.html        | 24 +++++++++++++++++++
 4 files changed, 59 insertions(+)
 create mode 100644 src/main/java/guru/springframework/spring5webapp/controller/BookController.java
 create mode 100644 src/main/resources/templates/list.html

diff --git a/src/main/java/guru/springframework/spring5webapp/bootstrap/BootStrapData.java b/src/main/java/guru/springframework/spring5webapp/bootstrap/BootStrapData.java
index bf8168ad24..53c57a0736 100644
--- a/src/main/java/guru/springframework/spring5webapp/bootstrap/BootStrapData.java
+++ b/src/main/java/guru/springframework/spring5webapp/bootstrap/BootStrapData.java
@@ -42,6 +42,7 @@ public void run(String... args) throws Exception {
         book.setPublisher(publisher);
         publisher.getBooks().add(book);
 
+        System.out.println(book.getPublisher().getName());
 
         authorRepository.save(eric);
         bookRepository.save(book);
@@ -49,14 +50,25 @@ public void run(String... args) throws Exception {
 
         //---------------------------
 
+        Publisher publisher2 = new Publisher();
+        publisher.setName("P2");
+        publisher.setCity("C2");
+        publisher.setState("S2");
+
+        publisherRepository.save(publisher2);
+
         Author auther1 = new Author("Eric", "Evans");
         Book book1 = new Book("Book_Title_1", "123456789");
 
         auther1.getBooks().add(book1);
         book1.getAuthors().add(auther1);
+        book.setPublisher(publisher2);
+        publisher2.getBooks().add(book1);
+
 
         authorRepository.save(auther1);
         bookRepository.save(book1);
+        publisherRepository.save(publisher2);
 
         System.out.println("Number of books loaded: "+bookRepository.count());
         System.out.println("Number of authors loaded: "+authorRepository.count());
diff --git a/src/main/java/guru/springframework/spring5webapp/controller/BookController.java b/src/main/java/guru/springframework/spring5webapp/controller/BookController.java
new file mode 100644
index 0000000000..98af950ba0
--- /dev/null
+++ b/src/main/java/guru/springframework/spring5webapp/controller/BookController.java
@@ -0,0 +1,22 @@
+package guru.springframework.spring5webapp.controller;
+
+import guru.springframework.spring5webapp.repository.BookRepository;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+@Controller
+public class BookController {
+
+    private final BookRepository bookRepository;
+
+    public BookController(BookRepository bookRepository) {
+        this.bookRepository = bookRepository;
+    }
+
+    @RequestMapping("/books")
+    public String getBooks(Model model){
+        model.addAttribute("books", bookRepository.findAll());
+        return "list";
+    }
+}
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index e69de29bb2..0db082b821 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -0,0 +1 @@
+spring.h2.console.enabled=true
diff --git a/src/main/resources/templates/list.html b/src/main/resources/templates/list.html
new file mode 100644
index 0000000000..748b6c2b0b
--- /dev/null
+++ b/src/main/resources/templates/list.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8"/>
+    <title>Spring Framework Guru</title>
+</head>
+<body>
+<h1>Book List</h1>
+
+<table>
+    <tr>
+        <th>ID</th>
+        <th>Title</th>
+        <th>Publisher</th>
+    </tr>
+    <tr th:each="book : ${books}">
+        <td th:text="${book.id}">123</td>
+        <td th:text="${book.title}"> Spring in Action</td>
+        <td th:text="${book.publisher.name}">Wrox</td>
+    </tr>
+</table>
+
+</body>
+</html>
\ No newline at end of file