feat: avoid duplicated referral

NIAEFEUP · Feb 12, 2025 · b2e57ab · b2e57ab
1 parent dd9fe8f
commit b2e57ab
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diff --git a/website/app/models/user.ts b/website/app/models/user.ts
@@ -72,6 +72,10 @@ export default class User extends compose(BaseModel, HasReferralLink) {
     return this.emailVerifiedAt !== null
   }
 
+  hasBeenReferred() {
+    return this.referredByUserId !== null;
+  }
+
   public getPromoterCode: () => number = () => {
     return this.id;
   }

diff --git a/website/app/services/referral_service.ts b/website/app/services/referral_service.ts
@@ -21,6 +21,10 @@ export default class ReferralService {
     if (referredUser.isPromoter())
       return
 
+    // cannot use a referral more than once
+    if (referredUser.hasBeenReferred())
+      return
+
     const referralUserId = ReferralService.decode(referralCode)
     if (!referralUserId) return