Todo Samuel

src/main/java/com/example/postgresdemo/controller/TodoController.java

@@ -0,0 +1,66 @@
+package com.example.postgresdemo.controller;
+
+import com.example.postgresdemo.exception.ResourceNotFoundException;
+import com.example.postgresdemo.model.Todo;
+import com.example.postgresdemo.repository.TodoRepository;
+import com.example.postgresdemo.repository.UserRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import javax.validation.Valid;
+import java.util.List;
+
+@RestController
+public class TodoController {
+
+    @Autowired
+    private TodoRepository todoRepository;
+
+    @Autowired
+    private UserRepository userRepository;
+
+    @GetMapping("/users/{userId}/todos")
+    public List<Todo> getTodosByUserId(@PathVariable Long userId) {
+        return todoRepository.findByUserId(userId);
+    }
+
+    @PostMapping("/users/{userId}/todos")
+    public Todo addTodo(@PathVariable Long userId,
+                            @Valid @RequestBody Todo todo) {
+        return userRepository.findById(userId)
+                .map(user -> {
+                    todo.setUser(user);
+                    return todoRepository.save(todo);
+                }).orElseThrow(() -> new ResourceNotFoundException("User not found with id " + userId));
+    }
+
+    @PutMapping("/users/{userId}/todos/{todoId}")
+    public Todo updateTodo(@PathVariable Long userId,
+                               @PathVariable Long todoId,
+                               @Valid @RequestBody Todo todoRequest) {
+        if(!userRepository.existsById(userId)) {
+            throw new ResourceNotFoundException("User not found with id " + userId);
+        }
+
+        return todoRepository.findById(todoId)
+                .map(todo -> {
+                    todo.setText(todoRequest.getText());
+                    return todoRepository.save(todo);
+                }).orElseThrow(() -> new ResourceNotFoundException("Todo not found with id " + todoId));
+    }
+
+    @DeleteMapping("/users/{userId}/todos/{todoId}")
+    public ResponseEntity<?> deleteTodo(@PathVariable Long userId,
+                                          @PathVariable Long todoId) {
+        if(!userRepository.existsById(userId)) {
+            throw new ResourceNotFoundException("User not found with id " + userId);
+        }
+
+        return todoRepository.findById(todoId)
+                .map(todo -> {
+                    todoRepository.delete(todo);
+                    return ResponseEntity.ok().build();
+                }).orElseThrow(() -> new ResourceNotFoundException("Todo not found with id " + todoId));
+
+    }
+}

src/main/java/com/example/postgresdemo/controller/UserController.java

@@ -0,0 +1,49 @@
+package com.example.postgresdemo.controller;
+
+import com.example.postgresdemo.exception.ResourceNotFoundException;
+import com.example.postgresdemo.model.User;
+import com.example.postgresdemo.repository.UserRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+import javax.validation.Valid;
+
+@RestController
+public class UserController {
+
+    @Autowired
+    private UserRepository userRepository;
+
+    @GetMapping("/users")
+    public Page<User> getUsers(Pageable pageable) {
+        return userRepository.findAll(pageable);
+    }
+
+
+    @PostMapping("/users")
+    public User createUser(@Valid @RequestBody User user) {
+        return userRepository.save(user);
+    }
+
+    @PutMapping("/Users/{UserId}")
+    public User updateUser(@PathVariable Long userId,
+                                   @Valid @RequestBody User userRequest) {
+        return userRepository.findById(userId)
+                .map(user -> {
+                    user.setName(userRequest.getName());
+                    return userRepository.save(user);
+                }).orElseThrow(() -> new ResourceNotFoundException("User not found with id " + userId));
+    }
+
+
+    @DeleteMapping("/users/{userId}")
+    public ResponseEntity<?> deleteUser(@PathVariable Long userId) {
+        return userRepository.findById(userId)
+                .map(user -> {
+                    userRepository.delete(user);
+                    return ResponseEntity.ok().build();
+                }).orElseThrow(() -> new ResourceNotFoundException("User not found with id " + userId));
+    }
+}

src/main/java/com/example/postgresdemo/model/Answer.java → src/main/java/com/example/postgresdemo/model/Todo.java

@@ -7,13 +7,13 @@
 import javax.persistence.*;
 
 @Entity
-@Table(name = "answers")
-public class Answer extends AuditModel {
+@Table(name = "todos")
+public class Todo extends AuditModel {
     @Id
-    @GeneratedValue(generator = "answer_generator")
+    @GeneratedValue(generator = "todo_generator")
     @SequenceGenerator(
-            name = "answer_generator",
-            sequenceName = "answer_sequence",
+            name = "todo_generator",
+            sequenceName = "todo_sequence",
             initialValue = 1000
     )
     private Long id;
@@ -22,10 +22,10 @@ public class Answer extends AuditModel {
     private String text;
 
     @ManyToOne(fetch = FetchType.LAZY, optional = false)
-    @JoinColumn(name = "question_id", nullable = false)
+    @JoinColumn(name = "user_id", nullable = false)
     @OnDelete(action = OnDeleteAction.CASCADE)
     @JsonIgnore
-    private Question question;
+    private User user;
 
     public Long getId() {
         return id;
@@ -43,11 +43,11 @@ public void setText(String text) {
         this.text = text;
     }
 
-    public Question getQuestion() {
-        return question;
+    public User getUser() {
+        return user;
     }
 
-    public void setQuestion(Question question) {
-        this.question = question;
+    public void setUser(User user) {
+        this.user = user;
     }
 }

src/main/java/com/example/postgresdemo/model/User.java

@@ -0,0 +1,38 @@
+package com.example.postgresdemo.model;
+
+import javax.persistence.*;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.Size;
+
+@Entity
+@Table(name = "Users")
+public class User extends AuditModel {
+    @Id
+    @GeneratedValue(generator = "user_generator")
+    @SequenceGenerator(
+            name = "user_generator",
+            sequenceName = "user_sequence",
+            initialValue = 1000
+    )
+    private Long id;
+
+    @NotBlank
+    @Size(min = 3, max = 100)
+    private String name;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

src/main/java/com/example/postgresdemo/repository/AnswerRepository.java → src/main/java/com/example/postgresdemo/repository/TodoRepository.java

@@ -1,11 +1,11 @@
 package com.example.postgresdemo.repository;
 
-import com.example.postgresdemo.model.Answer;
+import com.example.postgresdemo.model.Todo;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 import java.util.List;
 
 @Repository
-public interface AnswerRepository extends JpaRepository<Answer, Long> {
-    List<Answer> findByQuestionId(Long questionId);
-}
+public interface TodoRepository extends JpaRepository<Todo, Long> {
+    List<Todo> findByUserId(Long userId);
+}