From 6a27fbe1d7f1226dc841e07ac1508cdb6af267d7 Mon Sep 17 00:00:00 2001
From: Tim <135014430+nagisa77@users.noreply.github.com>
Date: Sun, 31 Aug 2025 14:22:44 +0800
Subject: [PATCH] Fix null multiple field for poll posts

---
 backend/src/main/java/com/openisle/mapper/PostMapper.java | 2 +-
 backend/src/main/java/com/openisle/model/PollPost.java    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/backend/src/main/java/com/openisle/mapper/PostMapper.java b/backend/src/main/java/com/openisle/mapper/PostMapper.java
index 57277357d..bd4a04826 100644
--- a/backend/src/main/java/com/openisle/mapper/PostMapper.java
+++ b/backend/src/main/java/com/openisle/mapper/PostMapper.java
@@ -111,7 +111,7 @@ public class PostMapper {
                     .collect(Collectors.groupingBy(PollVote::getOptionIndex,
                             Collectors.mapping(v -> userMapper.toAuthorDto(v.getUser()), Collectors.toList())));
             p.setOptionParticipants(optionParticipants);
-            p.setMultiple(pp.isMultiple());
+            p.setMultiple(Boolean.TRUE.equals(pp.getMultiple()));
             dto.setPoll(p);
         }
     }
diff --git a/backend/src/main/java/com/openisle/model/PollPost.java b/backend/src/main/java/com/openisle/model/PollPost.java
index 503b6bfbf..494796f5d 100644
--- a/backend/src/main/java/com/openisle/model/PollPost.java
+++ b/backend/src/main/java/com/openisle/model/PollPost.java
@@ -33,7 +33,7 @@ public class PollPost extends Post {
     private Set<User> participants = new HashSet<>();
 
     @Column
-    private boolean multiple = false;
+    private Boolean multiple = false;
 
     @Column
     private LocalDateTime endTime;