Merge pull request #798 from nagisa77/feature/vote

feature for vote

backend/src/main/java/com/openisle/model/NotificationType.java

@@ -40,6 +40,12 @@ public enum NotificationType {
     LOTTERY_WIN,
     /** Your lottery post was drawn */
     LOTTERY_DRAW,
+    /** Someone participated in your poll */
+    POLL_VOTE,
+    /** Your poll post has concluded */
+    POLL_RESULT_OWNER,
+    /** A poll you participated in has concluded */
+    POLL_RESULT_PARTICIPANT,
     /** Your post was featured */
     POST_FEATURED,
     /** You were mentioned in a post or comment */

backend/src/main/java/com/openisle/model/PollPost.java

@@ -0,0 +1,43 @@
+package com.openisle.model;
+
+import jakarta.persistence.*;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+import java.time.LocalDateTime;
+import java.util.*;
+
+@Entity
+@Table(name = "poll_posts")
+@Getter
+@Setter
+@NoArgsConstructor
+@PrimaryKeyJoinColumn(name = "post_id")
+public class PollPost extends Post {
+    @ElementCollection
+    @CollectionTable(name = "poll_post_options", joinColumns = @JoinColumn(name = "post_id"))
+    @Column(name = "option_text")
+    private List<String> options = new ArrayList<>();
+
+    @ElementCollection
+    @CollectionTable(name = "poll_post_votes", joinColumns = @JoinColumn(name = "post_id"))
+    @MapKeyColumn(name = "option_index")
+    @Column(name = "vote_count")
+    private Map<Integer, Integer> votes = new HashMap<>();
+
+    @ManyToMany
+    @JoinTable(name = "poll_participants",
+            joinColumns = @JoinColumn(name = "post_id"),
+            inverseJoinColumns = @JoinColumn(name = "user_id"))
+    private Set<User> participants = new HashSet<>();
+
+    @Column
+    private Boolean multiple = false;
+
+    @Column
+    private LocalDateTime endTime;
+
+    @Column
+    private boolean resultAnnounced = false;
+}

backend/src/main/java/com/openisle/model/PollVote.java

@@ -0,0 +1,28 @@
+package com.openisle.model;
+
+import jakarta.persistence.*;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Entity
+@Table(name = "poll_votes", uniqueConstraints = @UniqueConstraint(columnNames = {"post_id", "user_id", "option_index"}))
+@Getter
+@Setter
+@NoArgsConstructor
+public class PollVote {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY, optional = false)
+    @JoinColumn(name = "post_id")
+    private PollPost post;
+
+    @ManyToOne(fetch = FetchType.LAZY, optional = false)
+    @JoinColumn(name = "user_id")
+    private User user;
+
+    @Column(name = "option_index", nullable = false)
+    private int optionIndex;
+}

backend/src/main/java/com/openisle/model/PostType.java

@@ -2,5 +2,6 @@ package com.openisle.model;
 
 public enum PostType {
     NORMAL,
-    LOTTERY
+    LOTTERY,
+    POLL
 }