SpringBootのリポジトリとは？
-> DBへのアクセスを自動で作成する便利インターフェース
-> DBへのCRUDを自動で実装してくれる
なるほど
Listとは？
-> Javaのリスト（List）とは、重複した要素を含むことができる順序の付けられたコレクション
-> 配列とは異なる
ReservationRepository.java
package mrs.domain.repository.reservation;
import java.util.List;
import mrs.domain.model.ReservableRoomId;
import mrs.domain.model.Reservation;
import org.springframework.data.jpa.repository.JpaRepository;
public interface ReservationRepository extends JpaRepository<Reservation, Integer>{
List<Reservation> findByReservableRoom_ReservableRoomIdOrderByStartTimeAsc(
ReservableRoomId reservableRoomId);
}
MeetingRoomRepository.java
package mrs.domain.repository.room;
import org.springframework.data.jpa.repository.JpaRepository;
import mrs.domain.model.MeetingRoom;
public interface MeetingRoomRepository extends JpaRepository<MeetingRoom, Integer>{
}
Serviceとは？
-> ビジネスロジックを実装するクラス
-> Controllerはリクエストの窓口になるクラス
ん、ビジネスロジックはcontrollerではなく、serviceで書くのか。ちょっと混乱するな。
ReservationService.java
package mrs.domain.service.reservation;
import java.util.List;
import mrs.domain.model.*;
import mrs.domain.repository.reservation.ReservationRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
@Service
@Transactional
public class ReservationService {
@Autowired
ReservationRepository reservationRepository;
public List<Reservation> findReservations(ReservableRoomId reservableRoomId){
return reservationRepository.findByReservableRoom_ReservableRoomIdOrderByStartTimeAsc(
reservableRoomId);
}
}
Serviceの中のpublic List<*>がJavaの構文でないような印象だが、どういう事なんだ？
package mrs.domain.service.reservation;
import java.util.List;
import mrs.domain.model.*;
import mrs.domain.repository.reservation.ReservationRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
@Service
@Transactional
public class ReservationService {
@Autowired
ReservationRepository reservationRepository;
@Autowired
ReservableRoomRepository reservableRoomRepository;
public Reservation reserve(Reservation reservation) {
ReservableroomId reservableRoomId = reservation.getReservableRoom().getReservableRoomId();
ReservableRoom reservable = reservableRoomRepository.findOne(reservableRoomId);
if(reservable == null) {
}
boolean overlap = reservationRepository.findByReservableRoom_ReservableRoomIdOrderByStartTimeAsc(reservableRoomId)
.stream()
.anyMatch(x -> x.overlap(reservation));
if(overlap) {
}
reservationRepository.save(reservation);
return reservation;
}
ReservationsController.java
package mrs.app.reservation;
import java.time.LocalDate;
import java.time.LocalTime;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import mrs.domain.model.*;
import mrs.domain.service.reservation.*;
import mrs.domain.service.room.RoomService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;
@Controller
@RequestMapping("reservations/{date}/{roomId}")
public class ReservationsController {
@Autowired
RoomService roomService;
@Autowired
ReservationService reservationService;
@ModelAttribute
ReservationForm setUpForm() {
RservationForm form = new ReservationForm();
form.setStartTime(LocalTime.of(9, 0));
form.setEndTime(LocalTime.of(10, 0));
return form;
}
@RequestMapping(method = RequestMethod.GET)
String reserveForm(@DateTimeFormat(iso=DateTimeFormat.ISO.DATE) @PathVariable("date") LocalDate date,
@PathVariable("roomId") Integer roomId, Model model) {
ReservableRoomId reservableRoomId = new ReservableRoomId(roomId, date);
List<Reservation> reservations = reservationService.findReservations(reservableRoomId);
List<LocalTime> timeList =
Stream.iterate(LocalTime.of(0, 0), t -> t.plusMinutes(30))
.limit(24 * 2)
.collect(Collectors.toList());
model.addAttribute("room", roomService.findMeetingRoom(roomId));
model.addAttribute("reservations", reservations);
model.addAttribute("timeList", timeList);
model.addAttribute("user", dummyUser());
return "reservation/reserveForm";
}
private User dummyUser() {
User user = new User();
user.setUserId("taro-yamada");
user.setFirstName("taro");
user.setLastName("Yamada");
user.setRoleName(RoleName.USER);
return user;
}
}
package mrs.app.reservation;
import java.io.Serializable;
import java.time.LocalTime;
import javax.validation.constraints.NotNull;
import org.springframework.format.annotation.DateTimeFormat;
public class ReservationForm implements Serializable {
@NotNull(message = "必須です")
@DateTimeFormat(pattern = "HH:mm")
private LocalTime startTime;
@NotNull(message = "必須です")
@DateTimeFormat(pattern = "HH:mm")
private Localtime endTime;
}
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="utf-8">
<title th:text="|${#temporals.format(date, 'yyyy/M/d')}の${room.roomName}|">2021/01/29の豊洲</title>
</head>
<body>
<div>
<a th:href="@{'/rooms/' + ${date}">会議室一覧へ</a>
</div>
<form th:object="${reservationForm}"
th:action="@{'/reservations/' + ${date} + '/' + ${roomId}}" method="post">
会議室: <span th:text="${room.roomName}">銀座</span>
<br>
予約者名: <span th:text="${user.lastName + ' ' + user.firstName}">山田太郎</span>
// 省略
うーむ、全体的な流れを掴むには良いが、もう少し入門的なところからやりたい。。
