even further stuff

Co-Authored-By: Talha Caliskan <killerber4t@users.noreply.github.com>
Co-Authored-By: tomvahl <tomvahl@users.noreply.github.com>
Co-Authored-By: xxnitram <xxnitram@users.noreply.github.com>
Co-Authored-By: kasch309 <kasch309@users.noreply.github.com>

src/main/java/mops/gruppen2/domain/event/DeleteGroupEvent.java

@@ -2,6 +2,7 @@ package mops.gruppen2.domain.event;
 
 import lombok.EqualsAndHashCode;
 import lombok.Value;
+import mops.gruppen2.domain.Group;
 
 @EqualsAndHashCode(callSuper = true)
 @Value
@@ -11,4 +12,14 @@ public class DeleteGroupEvent extends Event {
         super(group_id, user_id);
     }
 
+    @Override
+    public void apply(Group group) {
+        group.getRoles().clear();
+        group.getMembers().clear();
+        group.setTitle(null);
+        group.setDescription(null);
+        group.setVisibility(null);
+        group.setType(null);
+        group.setParent(null);
+    }
 }

src/main/java/mops/gruppen2/domain/event/DeleteUserEvent.java

@@ -14,14 +14,11 @@ public class DeleteUserEvent extends Event {
         super(group_id, user_id);
     }
 
-    public DeleteUserEvent() {
-    }
-
     public void apply(Group group) {
         for (User user : group.getMembers()) {
             if (user.getUser_id().equals(this.user_id)) {
-                group.members.remove(user);
+                group.getMembers().remove(user);
-                group.getRoles().remove(user_id);
+                group.getRoles().remove(user.getUser_id());
                 return;
             }
         }

src/test/java/mops/gruppen2/domain/event/DeleteUserEventTest.java

@@ -28,6 +28,8 @@ class DeleteUserEventTest {
 
         event.apply(group);
 
+        assertThat(group.getMembers().size()).isEqualTo(1);
         assertThat(group.getRoles().size()).isEqualTo(1);
+
     }
 }