add fix unique index on donation entity

migration/1701916750562-modifyDonationUniquenessIndex.ts

@@ -0,0 +1,27 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+import { logger } from '../src/utils/logger';
+
+export class modifyDonationUniquenessIndex1701916750562
+  implements MigrationInterface
+{
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      `DROP INDEX IF EXISTS "UQ_c9db9fd133378af80c3521bb146";`,
+    );
+    await queryRunner.query(`
+            CREATE UNIQUE INDEX IF NOT EXISTS "UQ_c9db9fd133378af80c3521bb146" 
+            ON public.donation (transactionId, toWalletAddress, currency) 
+            WHERE transactionId IS NOT NULL;
+        `);
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      `DROP INDEX IF EXISTS "UQ_c9db9fd133378af80c3521bb146";`,
+    );
+    await queryRunner.query(`
+        CREATE UNIQUE INDEX IF NOT EXISTS "UQ_c9db9fd133378af80c3521bb146" 
+        ON public.donation (transactionId, toWalletAddress, currency) 
+    `);
+  }
+}

src/entities/donation.ts

@@ -42,13 +42,12 @@ export enum SortField {
 @Entity()
 @ObjectType()
 // https://typeorm.io/#/decorator-reference/unique
-@Unique(['transactionId', 'toWalletAddress', 'currency'])
 export class Donation extends BaseEntity {
   @Field(type => ID)
   @PrimaryGeneratedColumn()
   id: number;
 
-  @Field({ nullable: true })
+  @Field()
   @Column({ nullable: true })
   // It's transactionHash for crypto donation, and trackingCode for fiat donation
   transactionId: string;