fixed user controller

src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/controller/UserController.java

@@ -4,38 +4,37 @@ import ch.usi.inf.sa4.sanmarinoes.smarthut.models.*;
 import java.util.*;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.*;
-import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.*;
 
 @RestController
 @EnableAutoConfiguration
-@Controller
+@RequestMapping("/user")
 public class UserController {
 
     @Autowired private UserRepository userRepository;
 
     @GetMapping
-    public List<User> getAll() {
-        return userRepository.getList();
+    public Iterable<User> findAll() {
+        return userRepository.findAll();
     }
 
     @GetMapping("/{id}")
-    public User getById(@PathVariable("id") long id) {
-        return userRepository.getById();
+    public Optional<User> findById(@PathVariable("id") long id) {
+        return userRepository.findById(id);
     }
 
     @PostMapping
-    public User create(@RequestBody User u) {
-        return userRepository.create(u);
+    public User save(@RequestBody User u) {
+        return userRepository.save(u);
     }
 
     @PutMapping("/{id}")
-    public User update(@PathVariable("id") long id, @RequestBody User u) {
-        return userRepository.update(id, u);
+    public User update(@RequestBody User u) {
+        return userRepository.save(u);
     }
 
     @DeleteMapping("/{id}")
-    public void delete(@PathVariable("id") long id) {
-        userRepository.delete(id);
+    public void deleteById(@PathVariable("id") long id) {
+        userRepository.deleteById(id);
     }
 }

src/main/java/ch/usi/inf/sa4/sanmarinoes/smarthut/models/UserRepository.java

@@ -1,5 +1,6 @@
 package ch.usi.inf.sa4.sanmarinoes.smarthut.models;
 
+import java.util.*;
 import org.springframework.data.repository.CrudRepository;
 
 public interface UserRepository extends CrudRepository<User, Long> {}