Refactor: 변수명 분리 (#142)

src/main/java/com/back/domain/study/plan/dto/StudyPlanResponse.java

@@ -42,25 +42,26 @@ public class StudyPlanResponse {
     @AllArgsConstructor
     public static class RepeatRuleResponse {
         private Frequency frequency;
-        private Integer repeatInterval;
+        private Integer intervalValue;
         private List<DayOfWeek> byDay = new ArrayList<>();  // "MON" 형태의 enum 문자열 리스트
 
         @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd")
         private LocalDate untilDate;
 
-        // 엔티티 생성자: 그대로 유지
-
+        // RepeatRule 엔티티를 DTO로 변환하는 생성자
+        // intervalValue의 경우 요청, 응답(프론트)에서는 intervalValue 사용
+        // 백엔드 내에서는 repeatInterval 사용
         public RepeatRuleResponse(com.back.domain.study.plan.entity.RepeatRule repeatRule) {
             if (repeatRule != null) {
                 this.frequency = repeatRule.getFrequency();
-                this.repeatInterval = repeatRule.getRepeatInterval();
+                this.intervalValue = repeatRule.getRepeatInterval();
                 this.byDay = repeatRule.getByDay();
                 this.untilDate = repeatRule.getUntilDate();
             }
         }
 
     }
-    //엔티티를 DTO로 변환하는 생성자
+    // 엔티티를 DTO로 변환하는 생성자
     public StudyPlanResponse(StudyPlan studyPlan) {
         if (studyPlan != null) {
             this.id = studyPlan.getId();

src/main/java/com/back/domain/study/plan/entity/RepeatRuleEmbeddable.java

@@ -21,7 +21,7 @@ public class RepeatRuleEmbeddable {
     @Enumerated(EnumType.STRING)
     private Frequency frequency;
 
-    private Integer intervalValue;
+    private Integer repeatInterval;
     private List<DayOfWeek> byDay = new ArrayList<>();
     private LocalDate untilDate; // LocalDateTime → LocalDate 변경
 }

src/main/java/com/back/domain/study/plan/entity/StudyPlanException.java

@@ -61,7 +61,7 @@ public enum ExceptionType {
     @Column(name = "modified_repeat_rule")
     @AttributeOverrides({
             @AttributeOverride(name = "frequency", column = @Column(name = "modified_frequency")),
-            @AttributeOverride(name = "intervalValue", column = @Column(name = "modified_repeat_interval")),
+            @AttributeOverride(name = "repeatInterval", column = @Column(name = "modified_interval_value")),
             @AttributeOverride(name = "byDay", column = @Column(name = "modified_by_day")),
             @AttributeOverride(name = "untilDate", column = @Column(name = "modified_until_date"))
     })

src/main/java/com/back/domain/study/plan/service/StudyPlanService.java

@@ -197,7 +197,9 @@ private boolean shouldRepeatOnDate(StudyPlan originalPlan, LocalDate targetDate)
 
             case WEEKLY:
                 if (repeatRule.getByDay() != null && !repeatRule.getByDay().isEmpty()) {
-                    String targetDayOfWeek = targetDate.getDayOfWeek().name().substring(0, 3);
+                    // string으로 요일을 뽑아낸 뒤 enum으로 변환.
+                    // 비교해서 포함되지 않으면 false
+                    DayOfWeek targetDayOfWeek = DayOfWeek.valueOf(targetDate.getDayOfWeek().name().substring(0, 3));
                     if (!repeatRule.getByDay().contains(targetDayOfWeek)) {
                         return false;
                     }
@@ -259,7 +261,7 @@ private StudyPlanResponse createModifiedVirtualPlan(StudyPlan originalPlan, Stud
             RepeatRuleEmbeddable modifiedRule = exception.getModifiedRepeatRule();
             StudyPlanResponse.RepeatRuleResponse newRepeatRule = new StudyPlanResponse.RepeatRuleResponse();
             newRepeatRule.setFrequency(modifiedRule.getFrequency());
-            newRepeatRule.setRepeatInterval(modifiedRule.getIntervalValue());
+            newRepeatRule.setIntervalValue(modifiedRule.getRepeatInterval());
             newRepeatRule.setByDay(modifiedRule.getByDay());
             newRepeatRule.setUntilDate(modifiedRule.getUntilDate());
 
@@ -468,7 +470,7 @@ private void updateRepeatRule(RepeatRule repeatRule, StudyPlanRequest.RepeatRule
     private RepeatRuleEmbeddable createRepeatRuleEmbeddable(StudyPlanRequest.RepeatRuleRequest request, LocalDateTime startDate) {
         RepeatRuleEmbeddable embeddable = new RepeatRuleEmbeddable();
         embeddable.setFrequency(request.getFrequency());
-        embeddable.setIntervalValue(request.getIntervalValue());
+        embeddable.setRepeatInterval(request.getIntervalValue());
 
         // byDay 자동 설정 (오버로딩된 메서드 사용)
         getByDayInWeekly(request, startDate, embeddable);

src/test/java/com/back/domain/study/plan/controller/StudyPlanControllerTest.java

@@ -201,7 +201,7 @@ void t2() throws Exception {
                 .andExpect(jsonPath("$.data.startDate").value("2025-09-26T10:46:00"))
                 .andExpect(jsonPath("$.data.endDate").value("2025-09-26T11:46:00"))
                 .andExpect(jsonPath("$.data.repeatRule.frequency").value("DAILY"))
-                .andExpect(jsonPath("$.data.repeatRule.repeatInterval").value(1))
+                .andExpect(jsonPath("$.data.repeatRule.intervalValue").value(1))
                 .andExpect(jsonPath("$.data.repeatRule.byDay", hasSize(0)))
                 .andExpect(jsonPath("$.data.repeatRule.untilDate").value("2025-12-31"));