From 4f81514851497527b09e17fdf61b6601319c397f Mon Sep 17 00:00:00 2001
From: swa07016 <swa07016@naver.com>
Date: Thu, 15 Aug 2024 18:14:36 +0900
Subject: [PATCH] =?UTF-8?q?feat:=20=EA=B2=BD=ED=92=88=EC=9D=B4=EB=B2=A4?=
 =?UTF-8?q?=ED=8A=B8=20=EC=A0=84=EC=B2=B4=20=EC=9D=91=EB=AA=A8=EC=9E=90?=
 =?UTF-8?q?=EC=88=98=20=EB=A1=9C=EC=A7=81=20=EB=B3=80=EA=B2=BD?=
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---
 .../repository/PrizeCustomRepositoryImpl.java    | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/nexters/dailyphrase/prize/domain/repository/PrizeCustomRepositoryImpl.java b/src/main/java/com/nexters/dailyphrase/prize/domain/repository/PrizeCustomRepositoryImpl.java
index 599c8cf..0259dd7 100644
--- a/src/main/java/com/nexters/dailyphrase/prize/domain/repository/PrizeCustomRepositoryImpl.java
+++ b/src/main/java/com/nexters/dailyphrase/prize/domain/repository/PrizeCustomRepositoryImpl.java
@@ -34,8 +34,22 @@ public PrizeEventResponseDTO.PrizeList findPrizeListDTO(Long eventId) {
 
         Long memberId = memberUtils.getCurrentMemberId();
 
+        JPQLQuery<Long> actualParticipantCountQuery =
+                JPAExpressions.select(qPrizeEntry.memberId.countDistinct())
+                        .from(qPrizeEntry)
+                        .where(qPrizeEntry.prize.id.eq(qPrize.id));
+
         JPQLQuery<Long> totalParticipantCountQuery =
-                new JPAQuery<Long>().select(Expressions.constant(414L));
+                new JPAQuery<Long>()
+                        .select(
+                                Expressions.cases()
+                                        .when(actualParticipantCountQuery.eq(0L))
+                                        .then(Expressions.constant(414L))
+                                        .otherwise(
+                                                Expressions.numberTemplate(
+                                                        Long.class,
+                                                        "414 + {0}",
+                                                        actualParticipantCountQuery)));
 
         JPQLQuery<Long> myEntryCountQuery =
                 JPAExpressions.select(qPrizeEntry.id.count())