feat: MeetingEntity와 MeetingRepository 개발 (#8)

* feat: 미팅 도메인을 구현한다.

* feat: MeetingRepository를 구현한다.

* chore: auto_increment id 생성 전략을 추가한다.

* feat: meeting의 Id 생성 전략을 설정한다.

* feat: meeting의 검증 로직들을 추가한다.

1. 모임 소개는 10~200자 사이여야 한다.
2. 참여자 수는 2~6명 사이여야 한다.
3. 모임의 제목은 2~32자 사이여야 한다.

* chore: Test H2 DB의 방언을 변경한다.

* test: MeetingFixture를 구현하고, MeetingRepository를 테스트한다.

src/main/java/net/teumteum/meeting/domain/Meeting.java

@@ -0,0 +1,71 @@
+package net.teumteum.meeting.domain;
+
+import jakarta.persistence.*;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import net.teumteum.core.entity.TimeBaseEntity;
+import org.springframework.util.Assert;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Entity
+@Getter
+@NoArgsConstructor
+@AllArgsConstructor
+public class Meeting extends TimeBaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "id")
+    private Long id;
+
+    @Column(name = "title", length = 32)
+    private String title;
+
+    @Column(name = "host_user_id")
+    private Long hostUserId;
+
+    @ElementCollection
+    private List<Long> participantUserIds = new ArrayList<>();
+
+    @Column(name = "topic")
+    @Enumerated(EnumType.STRING)
+    private Topic topic;
+
+    @Column(name = "introduction", length = 200)
+    private String introduction;
+
+    @Embedded
+    private MeetingArea meetingArea;
+
+    @Column(name = "number_of_recruits")
+    private int numberOfRecruits;
+
+    @Embedded
+    private PromiseDateTime promiseDateTime;
+
+    @ElementCollection
+    private List<String> imageUrls = new ArrayList<>();
+
+    @PrePersist
+    private void assertField() {
+        assertTitle();
+        assertNumberOfRecruits();
+        assertIntroduction();
+    }
+
+    private void assertIntroduction() {
+        Assert.isTrue(introduction.length() >= 10 && introduction.length() <= 200, "모임 소개는 10자 ~ 200자 사이가 되어야 합니다. [현재 입력된 모임 소개] : " + introduction);
+    }
+
+    private void assertNumberOfRecruits() {
+        Assert.isTrue(numberOfRecruits >= 2 && numberOfRecruits <= 6, "참여자 수는 2명 ~ 6명 사이가 되어야 합니다. [현재 입력된 참여자 수] : " + numberOfRecruits);
+    }
+
+    private void assertTitle() {
+        Assert.isTrue(title.length() >= 2 && title.length() <= 32, "모임 제목은 2자 ~ 32자 사이가 되어야 합니다. [현재 입력된 모임 제목] : " + title);
+    }
+
+}

src/main/java/net/teumteum/meeting/domain/MeetingArea.java

@@ -0,0 +1,24 @@
+package net.teumteum.meeting.domain;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Embeddable;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@Embeddable
+@NoArgsConstructor
+@AllArgsConstructor
+public class MeetingArea {
+
+    @Column(name = "city")
+    private String city;
+
+    @Column(name = "street")
+    private String street;
+
+    @Column(name = "zip_code")
+    private String zipCode;
+
+}

src/main/java/net/teumteum/meeting/domain/MeetingRepository.java

@@ -0,0 +1,8 @@
+package net.teumteum.meeting.domain;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+
+public interface MeetingRepository extends JpaRepository<Meeting, Long> {
+
+}

src/main/java/net/teumteum/meeting/domain/PromiseDateTime.java

@@ -0,0 +1,23 @@
+package net.teumteum.meeting.domain;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Embeddable;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDate;
+import java.time.LocalTime;
+
+@Getter
+@Embeddable
+@NoArgsConstructor
+@AllArgsConstructor
+public class PromiseDateTime {
+
+    @Column(name = "promise_date")
+    private LocalDate date;
+
+    @Column(name = "promise_time")
+    private LocalTime time;
+}

src/main/java/net/teumteum/meeting/domain/Topic.java

@@ -0,0 +1,10 @@
+package net.teumteum.meeting.domain;
+
+public enum Topic {
+
+    고민_나누기,
+    모여서_작업,
+    스터디,
+    사이드_프로젝트,
+
+}

src/main/resources/db/migration/V1__create_users.sql

@@ -1,9 +1,9 @@
 create table if not exists users(
+  id bigint not null auto_increment,
   certificated boolean,
   manner_temperature integer,
   mbti varchar(4),
   character_id bigint,
-  id bigint not null,
   birth varchar(10),
   name varchar(10),
   goal varchar(50),

src/main/resources/db/migration/V2__create_meeting.sql

@@ -0,0 +1,32 @@
+create table if not exists meeting
+(
+    id                 bigint                                       not null
+    primary key auto_increment,
+    number_of_recruits int                                          null,
+    promise_date       date                                         null,
+    promise_time       time(6)                                      null,
+    created_at         timestamp(6)                                 not null,
+    host_user_id       bigint                                       null,
+    updated_at         timestamp(6)                                 not null,
+    title              varchar(32)                                  null,
+    introduction       varchar(200)                                 null,
+    city               varchar(255)                                 null,
+    street             varchar(255)                                 null,
+    zip_code           varchar(255)                                 null,
+    topic              enum ('고민_나누기', '모여서_작업', '스터디', '사이드_프로젝트') null
+    );
+
+create table if not exists meeting_image_urls
+(
+    meeting_id bigint       not null,
+    image_urls varchar(255) null,
+    foreign key (meeting_id) references meeting (id)
+    );
+
+create table if not exists meeting_participant_user_ids
+(
+    meeting_id           bigint not null,
+    participant_user_ids bigint null,
+    foreign key (meeting_id) references meeting (id)
+    );
+

src/test/java/net/teumteum/meeting/domain/MeetingFixture.java

@@ -0,0 +1,70 @@
+package net.teumteum.meeting.domain;
+
+import lombok.Builder;
+
+import java.time.LocalDate;
+import java.time.LocalTime;
+import java.util.ArrayList;
+import java.util.List;
+
+public class MeetingFixture {
+
+    public static Meeting getMeetingWithId(Long id) {
+        return newMeetingByBuilder(MeetingBuilder.builder()
+                .id(id)
+                .build());
+    }
+
+    public static Meeting getDefaultMeeting() {
+        return newMeetingByBuilder(MeetingBuilder.builder().build());
+    }
+
+    public static Meeting newMeetingByBuilder(MeetingBuilder meetingBuilder) {
+        return new Meeting(
+                meetingBuilder.id,
+                meetingBuilder.title,
+                meetingBuilder.hostUserId,
+                meetingBuilder.participantUserIds,
+                meetingBuilder.topic,
+                meetingBuilder.introduction,
+                meetingBuilder.meetingArea,
+                meetingBuilder.numberOfRecruits,
+                meetingBuilder.promiseDateTime,
+                meetingBuilder.imageUrls
+        );
+    }
+
+    @Builder
+    public static class MeetingBuilder {
+        @Builder.Default
+        private Long id = 0L;
+
+        @Builder.Default
+        private String title = "모임 제목";
+
+        @Builder.Default
+        private Long hostUserId = 0L;
+
+        @Builder.Default
+        private List<Long> participantUserIds = new ArrayList<>(List.of(0L));
+
+        @Builder.Default
+        private Topic topic = Topic.스터디;
+
+        @Builder.Default
+        private String introduction = "모임에 대한 간단한 설명입니다.";
+
+        @Builder.Default
+        private MeetingArea meetingArea = new MeetingArea("서울특별시", "강남구", "강남대로 390");
+
+        @Builder.Default
+        private int numberOfRecruits = 3;
+
+        @Builder.Default
+        private PromiseDateTime promiseDateTime = new PromiseDateTime(LocalDate.of(2023, 1, 1), LocalTime.of(12, 0));
+
+        @Builder.Default
+        private List<String> imageUrls = new ArrayList<>(List.of("https://www.google.com"));
+    }
+
+}

src/test/java/net/teumteum/meeting/domain/MeetingRepositoryTest.java

@@ -0,0 +1,67 @@
+package net.teumteum.meeting.domain;
+
+import jakarta.persistence.EntityManager;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+
+import java.util.Optional;
+
+@DataJpaTest
+@DisplayName("MeetingRepository 클래스의")
+class MeetingRepositoryTest {
+
+    @Autowired
+    private MeetingRepository meetingRepository;
+
+    @Autowired
+    private EntityManager entityManager;
+
+    @Nested
+    @DisplayName("save 메소드는")
+    class Save_method {
+
+        @Test
+        @DisplayName("올바른 MeetingEntity가 들어오면, 모임 저장에 성공한다.")
+        void Save_success_if_correct_meeting_entered() {
+            // given
+            var newMeeting = MeetingFixture.getDefaultMeeting();
+
+            // when
+            var result = Assertions.catchException(() -> meetingRepository.saveAndFlush(newMeeting));
+
+            // then
+            Assertions.assertThat(result).isNull();
+        }
+    }
+
+    @Nested
+    @DisplayName("findById 메소드는")
+    class FindById_method {
+
+        @Test
+        @DisplayName("저장된 모임의 id로 조회하면, 모임을 반환한다.")
+        void Find_success_if_exists_meeting_id_input() {
+            // given
+            var id = 1L;
+            var existsMeeting = MeetingFixture.getMeetingWithId(id);
+
+            meetingRepository.saveAndFlush(existsMeeting);
+            entityManager.clear();
+
+            // when
+            var result = meetingRepository.findById(id);
+
+            // then
+            Assertions.assertThat(result)
+                    .isPresent()
+                    .usingRecursiveComparison()
+                    .ignoringFields("value.createdAt", "value.updatedAt")
+                    .isEqualTo(Optional.of(existsMeeting));
+        }
+    }
+
+}

src/test/resources/application.properties

@@ -2,7 +2,7 @@ spring.datasource.driver-class-name = org.h2.Driver
 spring.datasource.url = jdbc:h2:mem:test;MODE=MySQL;DATABASE_TO_LOWER=TRUE
 
 spring.jpa.hibernated.ddl-auto = validate
-spring.jpa.database-platform = org.hibernate.dialect.H2Dialect
+spring.jpa.database-platform = org.hibernate.dialect.MySQLDialect
 
 spring.datasource.hikari.maximum-pool-size = 4
 spring.datasource.hikari.pool-name = H2_TEST_POOL

src/test/resources/schema.sql

@@ -1,9 +1,9 @@
 create table if not exists users(
+  id bigint not null auto_increment,
   certificated boolean,
   manner_temperature integer,
   mbti varchar(4),
   character_id bigint,
-  id bigint not null,
   birth varchar(10),
   name varchar(10),
   goal varchar(50),
@@ -32,3 +32,36 @@ create table if not exists users_street(
   street varchar(255),
   foreign key (users_id) references users(id)
 );
+
+create table if not exists meeting
+(
+    id                 bigint                                       not null
+        primary key auto_increment,
+    number_of_recruits int                                          null,
+    promise_date       date                                         null,
+    promise_time       time(6)                                      null,
+    created_at         timestamp(6)                                 not null,
+    host_user_id       bigint                                       null,
+    updated_at         timestamp(6)                                 not null,
+    title              varchar(32)                                  null,
+    introduction       varchar(200)                                 null,
+    city               varchar(255)                                 null,
+    street             varchar(255)                                 null,
+    zip_code           varchar(255)                                 null,
+    topic              enum ('고민_나누기', '모여서_작업', '스터디', '사이드_프로젝트') null
+);
+
+create table if not exists meeting_image_urls
+(
+    meeting_id bigint       not null,
+    image_urls varchar(255) null,
+    foreign key (meeting_id) references meeting (id)
+);
+
+create table if not exists meeting_participant_user_ids
+(
+    meeting_id           bigint not null,
+    participant_user_ids bigint null,
+    foreign key (meeting_id) references meeting (id)
+);
+