3단계 - 수강신청(DB 적용)

STEP3README.md

@@ -0,0 +1,15 @@
+# 학습 관리 시스템(Learning Management System)
+
+## step3 요구사항
+
+1. [x] 앞단계에서 구현한 도메인 모델 DB와 매핑하고 데이터 저장
+2. 
+   2. 테이블 설계하고 객체매핑
+2. [x] Payments는 테이블 매핑 미고려
+
+## 관련 클래스
+
+1. DB 테이블 resources/schema.sql
+2. jdbcCourseRepository
+3. CourseRepositoryTest
+

src/main/java/nextstep/courses/domain/Course.java

@@ -14,23 +14,23 @@ public class Course {
     private Long creatorId;
     private LocalDateTime createdAt;
     private LocalDateTime updatedAt;
-    private List<Session> sessionList;
+    private List<Session> sessions;
 
     public Course() {
     }
 
     public Course(String title, Long creatorId) {
-        this(0L, title, creatorId, LocalDateTime.now(), null);
+        this(0L, title, creatorId, LocalDateTime.now(), null,1);
     }
 
-    public Course(Long id, String title, Long creatorId, LocalDateTime createdAt, LocalDateTime updatedAt) {
+    public Course(Long id, String title, Long creatorId, LocalDateTime createdAt, LocalDateTime updatedAt, int classNumber) {
         this.id = id;
         this.title = title;
         this.creatorId = creatorId;
         this.createdAt = createdAt;
         this.updatedAt = updatedAt;
-        sessionList = new ArrayList<>();
-        classNumber = count.incrementAndGet();
+        sessions = new ArrayList<>();
+        this.classNumber = classNumber;
     }
 
     public String getTitle() {

src/main/java/nextstep/courses/domain/PricingType.java

@@ -1,12 +1,14 @@
 package nextstep.courses.domain;
 
-import nextstep.courses.Exception.CustomException;
+import nextstep.courses.exception.CustomException;
 import nextstep.payments.domain.Payment;
 
 public class PricingType {
 
     private final int sessionAmount;
-    private boolean isPremium;
+    private final boolean isPremium;
+
+
 
     public PricingType(boolean isPremium, int sessionAmount) {
         validate(isPremium,sessionAmount);
@@ -32,4 +34,12 @@ public void validateAmount(Payment payment) {
             throw CustomException.NOT_MATCHING_SESSION_AMOUNT;
         }
     }
+
+    public int getSessionAmount() {
+        return sessionAmount;
+    }
+
+    public boolean getIsPremium() {
+        return isPremium;
+    }
 }

src/main/java/nextstep/courses/domain/Session.java

@@ -1,30 +1,45 @@
 package nextstep.courses.domain;
 
-import nextstep.courses.Exception.CustomException;
-import nextstep.courses.domain.sessionimage.SessionImage;
+import nextstep.courses.exception.CustomException;
+import nextstep.courses.domain.image.SessionImage;
 import nextstep.payments.domain.Payment;
-import nextstep.users.domain.NsUser;
 
 import java.util.ArrayList;
 import java.util.List;
 
 public class Session {
-    private List<NsUser> students;
+    private Long id;
+    private List<Long> students;
     private PricingType pricingType;
     private SessionState state;
     private SessionImage image;
     private int maxStudentCount;
     private SessionDate date;
 
+
     public Session(PricingType pricingType, int maxStudentCount, SessionState state, SessionDate date
             , SessionImage image) {
+        this(0L, new ArrayList<Long>(),pricingType,state,image,maxStudentCount,date);
+    }
+
+    public Session(List<Long> students, PricingType pricingType, SessionState state, SessionImage image, int maxStudentCount, SessionDate date) {
+        this.id = 0L;
+        this.students = students;
         this.pricingType = pricingType;
-        this.students = new ArrayList<>();
-        this.maxStudentCount = maxStudentCount;
         this.state = state;
-        this.date = date;
         this.image = image;
+        this.maxStudentCount = maxStudentCount;
+        this.date = date;
+    }
 
+    public Session(Long id, List<Long> students, PricingType pricingType, SessionState state, SessionImage image, int maxStudentCount, SessionDate date) {
+        this.id = id;
+        this.students = students;
+        this.pricingType = pricingType;
+        this.state = state;
+        this.image = image;
+        this.maxStudentCount = maxStudentCount;
+        this.date = date;
     }
 
     public void requestSession(Payment payment) {
@@ -47,4 +62,28 @@ private void validateSessionState() {
 
     }
 
+    public List<Long> getStudents() {
+        return students;
+    }
+
+    public PricingType getPricingType() {
+        return pricingType;
+    }
+
+    public SessionState getState() {
+        return state;
+    }
+
+    public SessionImage getImage() {
+        return image;
+    }
+
+    public int getMaxStudentCount() {
+        return maxStudentCount;
+    }
+
+    public SessionDate getDate() {
+        return date;
+    }
+
 }

src/main/java/nextstep/courses/domain/SessionDate.java

@@ -1,6 +1,6 @@
 package nextstep.courses.domain;
 
-import nextstep.courses.Exception.CustomException;
+import nextstep.courses.exception.CustomException;
 
 import java.time.LocalDateTime;
 
@@ -15,4 +15,12 @@ public SessionDate(LocalDateTime startDate, LocalDateTime endDate) {
         this.startDate = startDate;
         this.endDate = endDate;
     }
+
+    public LocalDateTime getStartDate() {
+        return startDate;
+    }
+
+    public LocalDateTime getEndDate() {
+        return endDate;
+    }
 }

src/main/java/nextstep/courses/domain/SessionRepository.java

@@ -0,0 +1,6 @@
+package nextstep.courses.domain;
+
+public interface SessionRepository {
+    long save(Session session);
+    Session findById(Long id);
+}

src/main/java/nextstep/courses/domain/SessionState.java

@@ -3,6 +3,9 @@
 public enum SessionState {
     READY("READY"), START("START"), END("END");
 
+    public String getState() {
+        return state;
+    }
 
     public String state;
 

src/main/java/nextstep/courses/domain/sessionimage/ImageCapacity.java → src/main/java/nextstep/courses/domain/image/ImageCapacity.java

@@ -1,6 +1,6 @@
-package nextstep.courses.domain.sessionimage;
+package nextstep.courses.domain.image;
 
-import nextstep.courses.Exception.CustomException;
+import nextstep.courses.exception.CustomException;
 
 public class ImageCapacity {
 
@@ -9,6 +9,7 @@ public class ImageCapacity {
 
     private final int imageSize;
 
+
     public ImageCapacity(int imageSize) {
         validateSize(imageSize);
         this.imageSize = imageSize;
@@ -19,4 +20,9 @@ private void validateSize(int imageSize) {
             throw CustomException.OVER_MAX_IMAGE_CAPACITY;
         }
     }
+
+    public int getImageSize() {
+        return imageSize;
+    }
+
 }

src/main/java/nextstep/courses/domain/sessionimage/ImageSize.java → src/main/java/nextstep/courses/domain/image/ImageSize.java

@@ -1,6 +1,6 @@
-package nextstep.courses.domain.sessionimage;
+package nextstep.courses.domain.image;
 
-import nextstep.courses.Exception.CustomException;
+import nextstep.courses.exception.CustomException;
 
 import java.math.BigDecimal;
 import java.math.RoundingMode;
@@ -29,4 +29,13 @@ private void validateSize(int width, int height) {
             throw CustomException.IMAGE_PERCENT_ERROR;
         }
     }
+
+
+    public int getWidth() {
+        return width;
+    }
+
+    public int getHeight() {
+        return height;
+    }
 }

src/main/java/nextstep/courses/domain/sessionimage/ImageType.java → src/main/java/nextstep/courses/domain/image/ImageType.java

@@ -1,6 +1,6 @@
-package nextstep.courses.domain.sessionimage;
+package nextstep.courses.domain.image;
 
-import nextstep.courses.Exception.CustomException;
+import nextstep.courses.exception.CustomException;
 
 import java.util.Arrays;
 
@@ -12,7 +12,6 @@ public enum ImageType {
     png,
     svg;
 
-
     public static ImageType validateType(String imageType) {
         return Arrays.stream(values()).filter(type -> type.name().equals(imageType))
                 .findFirst()

src/main/java/nextstep/courses/domain/sessionimage/SessionImage.java → src/main/java/nextstep/courses/domain/image/SessionImage.java

@@ -1,16 +1,28 @@
-package nextstep.courses.domain.sessionimage;
+package nextstep.courses.domain.image;
 
 public class SessionImage {
 
     private final ImageCapacity capacity;
     private final ImageType type;
     private final ImageSize size;
 
-
     public SessionImage(ImageCapacity capacity, ImageType type, ImageSize size) {
         ImageType.validateType(type.name());
         this.capacity = capacity;
         this.type = type;
         this.size = size;
     }
+
+    public ImageCapacity getCapacity() {
+        return capacity;
+    }
+
+    public ImageType getType() {
+        return type;
+    }
+
+    public ImageSize getSize() {
+        return size;
+    }
+
 }

src/main/java/nextstep/courses/Exception/CustomException.java → src/main/java/nextstep/courses/exception/CustomException.java

@@ -1,26 +1,25 @@
-package nextstep.courses.Exception;
+package nextstep.courses.exception;
 
 public class CustomException extends RuntimeException {
 
-    public static final CustomException NOT_ALLOWED_DATE = new CustomException(ResponseType.NOT_ALLOWED_DATE_MESSAGE);
-    public static final CustomException OVER_MAX_IMAGE_CAPACITY = new CustomException(ResponseType.OVER_MAX_IMAGE_CAPACITY);
-    public static final CustomException IMAGE_SIZE_ERROR = new CustomException(ResponseType.IMAGE_SIZE_ERROR);
-    public static final CustomException IMAGE_PERCENT_ERROR = new CustomException(ResponseType.IMAGE_PERCENT_ERROR);
-    public static final CustomException NOT_ALLOWED_PREMIUM_AMOUNT = new CustomException(ResponseType.NOT_ALLOWED_PREMIUM_AMOUNT);
-    public static final CustomException NOT_ALLOWED_FREE_AMOUNT = new CustomException(ResponseType.NOT_ALLOWED_FREE_AMOUNT);
-    public static final CustomException NOT_MATCHING_SESSION_AMOUNT = new CustomException(ResponseType.NOT_MACHING_SESSION_AMOUNT);
-    public static final CustomException MAX_STUDENTS_OVER = new CustomException(ResponseType.MAX_STUDENTS_OVER);
-    public static final CustomException INVALID_SESSION_STATE = new CustomException(ResponseType.INVALID_SESSION_STATE);
-    public static final CustomException INVALID_IMAGE_TYPE = new CustomException(ResponseType.INVALID_IMAGE_TYPE);
+    public static final CustomException NOT_ALLOWED_DATE = new CustomException("허용되지 않은 시작날짜입니다.");
+    public static final CustomException OVER_MAX_IMAGE_CAPACITY = new CustomException("이미지 사이즈는 1MB 이하여야 합니다.");
+    public static final CustomException IMAGE_SIZE_ERROR = new CustomException("이미지 사이즈 오류입니다.");
+    public static final CustomException IMAGE_PERCENT_ERROR = new CustomException("이미지 비율 오류");
+    public static final CustomException NOT_ALLOWED_PREMIUM_AMOUNT = new CustomException("유료강의 금액은 0원이 될 수 없습니다.");
+    public static final CustomException NOT_ALLOWED_FREE_AMOUNT = new CustomException("무료 강의 금액이 0원이 아닙니다.");
+    public static final CustomException NOT_MATCHING_SESSION_AMOUNT = new CustomException("강의 금액과 맞지 않습니다.");
+    public static final CustomException MAX_STUDENTS_OVER = new CustomException("수강인원 초과");
+    public static final CustomException INVALID_SESSION_STATE = new CustomException("강의신청 기간이 아닙니다.");
+    public static final CustomException INVALID_IMAGE_TYPE = new CustomException("이미지 타입이 올바르지 않습니다.");
 
-    public CustomException(ResponseType responseType) {
-        super(responseType.message);
+    public CustomException(String message) {
+        super(message);
     }
 
     @Override
     public synchronized Throwable fillInStackTrace() {
         return this;
     }
 
-
 }

src/main/java/nextstep/courses/infrastructure/JdbcCourseRepository.java

@@ -19,19 +19,21 @@ public JdbcCourseRepository(JdbcOperations jdbcTemplate) {
 
     @Override
     public int save(Course course) {
-        String sql = "insert into course (title, creator_id, created_at) values(?, ?, ?)";
-        return jdbcTemplate.update(sql, course.getTitle(), course.getCreatorId(), course.getCreatedAt());
+        String sql = "insert into course (title, creator_id, created_at, class_number) values(?, ?, ?,?)";
+        return jdbcTemplate.update(sql, course.getTitle(), course.getCreatorId(), course.getCreatedAt(),1);
     }
 
     @Override
     public Course findById(Long id) {
-        String sql = "select id, title, creator_id, created_at, updated_at from course where id = ?";
+        String sql = "select id, title, creator_id, created_at, updated_at, class_number from course where id = ?";
         RowMapper<Course> rowMapper = (rs, rowNum) -> new Course(
                 rs.getLong(1),
                 rs.getString(2),
                 rs.getLong(3),
                 toLocalDateTime(rs.getTimestamp(4)),
-                toLocalDateTime(rs.getTimestamp(5)));
+                toLocalDateTime(rs.getTimestamp(5)),
+                rs.getInt(6)
+                );
         return jdbcTemplate.queryForObject(sql, rowMapper, id);
     }