started Backend User functionality

Backend/src/main/java/com/mobilecomputing/pecunia/controller/TestController.java

-package com.mobilecomputing.pecunia.controller;
-
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
-import org.springframework.web.bind.annotation.RestController;
-
-@RestController
-@RequestMapping(value = "/api", method = RequestMethod.GET)
-public class TestController {
-    @GetMapping
-    public String test(){
-        return "hello World";
-    }
-}

Backend/src/main/java/com/mobilecomputing/pecunia/controller/TripController.java

+package com.mobilecomputing.pecunia.controller;
+
+import com.mobilecomputing.pecunia.repository.TripRepository;
+import org.bson.types.ObjectId;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping(value = "/trip", method = RequestMethod.GET)
+public class TripController {
+
+    @Autowired
+    TripRepository tripRepository;
+
+    @GetMapping("/getTripById")
+    public String getTripById(@RequestParam String id){
+
+        return String.valueOf(tripRepository.findById(new ObjectId(id)));
+    }
+
+    @GetMapping("/getAllTrips")
+    public String getAllTrips(){
+        tripRepository.findAll().forEach(trip->{
+            System.out.println(trip.toString());
+        });
+        return "to do";
+    }
+}

Backend/src/main/java/com/mobilecomputing/pecunia/controller/UserController.java

+package com.mobilecomputing.pecunia.controller;
+
+import com.mobilecomputing.pecunia.model.User;
+import com.mobilecomputing.pecunia.repository.UserRepository;
+import org.bson.types.ObjectId;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping(value = "/user", method = RequestMethod.GET)
+public class UserController {
+    @Autowired
+    UserRepository userRepository;
+
+    @GetMapping("/getById")
+    public String getUserById(@RequestParam String id){
+        return String.valueOf(userRepository.findById(new ObjectId(id)));
+    }
+
+    @GetMapping("/getAll")
+    public String getAllUsers(){
+        String response ="";
+        userRepository.findAll().forEach(user -> {
+            System.out.println(user.toString());
+        });
+        return String.valueOf(userRepository.findAll());
+    }
+
+    @PostMapping("/registrateUser")
+    public String registrateUser(@RequestParam String eMail, @RequestParam String name, @RequestParam String surname,
+                                 @RequestParam String password){
+        User user = new User();
+        user.seteMail(eMail); // überprüfen ob email schon vergeben ist
+        user.setName(name);
+        user.setSurname(surname);
+        user.setPassword(password);
+
+        userRepository.save(user);
+        return "ok?";
+    }
+
+    @DeleteMapping("/deleteUser")
+    public void deleteUser(@RequestParam String eMail){
+        userRepository.deleteById(new ObjectId(eMail));
+    }
+}

Backend/src/main/java/com/mobilecomputing/pecunia/model/Trip.java

+package com.mobilecomputing.pecunia.model;
+
+import org.springframework.data.annotation.Id;
+
+import java.util.Date;
+import java.util.List;
+
+public class Trip {
+    @Id
+    private String tripId;
+    private String tripName;
+    private Date startOfTrip;
+    private Date endOfTrip;
+    private List<User> tripParticipants;
+
+    public Trip(String tripId, String tripName, Date startOfTrip, Date endOfTrip, List<User> tripParticipants) {
+        this.tripId = tripId;
+        this.tripName = tripName;
+        this.startOfTrip = startOfTrip;
+        this.endOfTrip = endOfTrip;
+        this.tripParticipants = tripParticipants;
+    }
+
+    public String getTripId() {
+        return tripId;
+    }
+
+    public void setTripId(String tripId) {
+        this.tripId = tripId;
+    }
+
+    public String getTripName() {
+        return tripName;
+    }
+
+    public void setTripName(String tripName) {
+        this.tripName = tripName;
+    }
+
+    public Date getStartOfTrip() {
+        return startOfTrip;
+    }
+
+    public void setStartOfTrip(Date startOfTrip) {
+        this.startOfTrip = startOfTrip;
+    }
+
+    public Date getEndOfTrip() {
+        return endOfTrip;
+    }
+
+    public void setEndOfTrip(Date endOfTrip) {
+        this.endOfTrip = endOfTrip;
+    }
+
+    public List<User> getTripParticipants() {
+        return tripParticipants;
+    }
+
+    public void setTripParticipants(List<User> tripParticipants) {
+        this.tripParticipants = tripParticipants;
+    }
+}

Backend/src/main/java/com/mobilecomputing/pecunia/model/User.java

+package com.mobilecomputing.pecunia.model;
+
+import org.springframework.data.annotation.Id;
+
+public class User {
+
+    @Id
+    private String eMail;
+    private String name;
+    private String surname;
+    private String password;
+
+    public String geteMail() {
+        return eMail;
+    }
+
+    public void seteMail(String eMail) {
+        this.eMail = eMail;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getSurname() {
+        return surname;
+    }
+
+    public void setSurname(String surname) {
+        this.surname = surname;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    @Override
+    public String toString() {
+        return "User{" +
+                "eMail='" + eMail + '\'' +
+                ", name='" + name + '\'' +
+                ", surname='" + surname + '\'' +
+                ", password='" + password + '\'' +
+                '}';
+    }
+}

Backend/src/main/java/com/mobilecomputing/pecunia/repository/TripRepository.java

+package com.mobilecomputing.pecunia.repository;
+
+import com.mobilecomputing.pecunia.model.Trip;
+import org.bson.types.ObjectId;
+import org.springframework.data.repository.CrudRepository;
+
+public interface TripRepository extends CrudRepository<Trip, ObjectId> {
+
+}

Backend/src/main/java/com/mobilecomputing/pecunia/repository/UserRepository.java

+package com.mobilecomputing.pecunia.repository;
+
+import com.mobilecomputing.pecunia.model.Trip;
+import com.mobilecomputing.pecunia.model.User;
+import org.bson.types.ObjectId;
+import org.springframework.data.repository.CrudRepository;
+
+public interface UserRepository extends CrudRepository<User, ObjectId> {
+}

Frontend/.idea/gradle.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>