refactor: studentCode unique 제약조건 수정

woowacourse-teams · Sep 27, 2023 · 2087790 · 2087790
1 parent e7460e8
commit 2087790
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Showing 2 changed files with 11 additions and 12 deletions.
diff --git a/backend/src/main/java/com/festago/student/domain/StudentCode.java b/backend/src/main/java/com/festago/student/domain/StudentCode.java
@@ -13,23 +13,14 @@
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
 import jakarta.persistence.ManyToOne;
 import jakarta.persistence.OneToOne;
-import jakarta.persistence.Table;
-import jakarta.persistence.UniqueConstraint;
 import java.time.LocalDateTime;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.util.StringUtils;
 
 @Entity
-@Table(
-    uniqueConstraints = {
-        @UniqueConstraint(
-            name = "unique_username__school",
-            columnNames = {"username", "school_id"}
-        )
-    }
-)
 public class StudentCode extends BaseTimeEntity {
 
     private static final int MIN_REQUEST_TERM_SECONDS = 30;
@@ -45,6 +36,7 @@ public class StudentCode extends BaseTimeEntity {
     private School school;
 
     @OneToOne(fetch = FetchType.LAZY)
+    @JoinColumn(unique = true)
     private Member member;
 
     private String username;

diff --git a/backend/src/main/resources/db/migration/V6__studnet_code__unique.sql b/backend/src/main/resources/db/migration/V6__studnet_code__unique.sql
@@ -1,5 +1,12 @@
-alter table student_code
-    add constraint unique_username__school unique (username, school_id);
+create index temp_member_index
+    on student_code (member_id);
+
+drop index fk_student_code__member on student_code;
+
+create unique index fk_student_code__member
+    on student_code (member_id);
+
+drop index temp_member_index on student_code;
 
 alter table student_code
     add column issued_at datetime(6);