From 8c262904a7f2ec2e2d3fb13d12cd346d0842e791 Mon Sep 17 00:00:00 2001
From: Stephan Krusche <krusche@tum.de>
Date: Wed, 22 Jan 2025 08:29:57 +0100
Subject: [PATCH] Development: Fix serialization error for learner profiles
 with JsonIgnoreProperties

---
 .../atlas/domain/profile/CourseLearnerProfile.java    |  7 +++++++
 .../artemis/atlas/domain/profile/LearnerProfile.java  | 11 +++++++++++
 2 files changed, 18 insertions(+)

diff --git a/src/main/java/de/tum/cit/aet/artemis/atlas/domain/profile/CourseLearnerProfile.java b/src/main/java/de/tum/cit/aet/artemis/atlas/domain/profile/CourseLearnerProfile.java
index 91e77a7c44e1..a920ee081321 100644
--- a/src/main/java/de/tum/cit/aet/artemis/atlas/domain/profile/CourseLearnerProfile.java
+++ b/src/main/java/de/tum/cit/aet/artemis/atlas/domain/profile/CourseLearnerProfile.java
@@ -10,11 +10,18 @@
 import jakarta.validation.constraints.Max;
 import jakarta.validation.constraints.Min;
 
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+
 import de.tum.cit.aet.artemis.core.domain.Course;
 import de.tum.cit.aet.artemis.core.domain.DomainObject;
 
 @Entity
 @Table(name = "course_learner_profile")
+@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
+@JsonInclude(JsonInclude.Include.NON_EMPTY)
 public class CourseLearnerProfile extends DomainObject {
 
     @ManyToOne
diff --git a/src/main/java/de/tum/cit/aet/artemis/atlas/domain/profile/LearnerProfile.java b/src/main/java/de/tum/cit/aet/artemis/atlas/domain/profile/LearnerProfile.java
index 84bed662672d..06ce79072dda 100644
--- a/src/main/java/de/tum/cit/aet/artemis/atlas/domain/profile/LearnerProfile.java
+++ b/src/main/java/de/tum/cit/aet/artemis/atlas/domain/profile/LearnerProfile.java
@@ -11,17 +11,28 @@
 import jakarta.persistence.OneToOne;
 import jakarta.persistence.Table;
 
+import org.hibernate.annotations.Cache;
+import org.hibernate.annotations.CacheConcurrencyStrategy;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonInclude;
+
 import de.tum.cit.aet.artemis.core.domain.DomainObject;
 import de.tum.cit.aet.artemis.core.domain.User;
 
 @Entity
 @Table(name = "learner_profile")
+@Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
+@JsonInclude(JsonInclude.Include.NON_EMPTY)
 public class LearnerProfile extends DomainObject {
 
+    @JsonIgnoreProperties("learnerProfile")
     @OneToOne(mappedBy = "learnerProfile", cascade = CascadeType.PERSIST)
     private User user;
 
     @OneToMany(mappedBy = "learnerProfile", cascade = CascadeType.ALL, orphanRemoval = true, fetch = FetchType.LAZY)
+    @Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
+    @JsonIgnoreProperties("learnerProfile")
     private Set<CourseLearnerProfile> courseLearnerProfiles = new HashSet<>();
 
     public void setUser(User user) {