Fixed problem with merge into when project members already exist in destination member

app/Service/MemberService.php

@@ -14,9 +14,11 @@ use App\Exceptions\Api\OnlyOwnerCanChangeOwnership;
 use App\Exceptions\Api\OrganizationNeedsAtLeastOneOwner;
 use App\Models\Member;
 use App\Models\Organization;
+use App\Models\Project;
 use App\Models\ProjectMember;
 use App\Models\TimeEntry;
 use App\Models\User;
+use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Support\Facades\DB;
 use InvalidArgumentException;
 use Laravel\Jetstream\Events\AddingTeamMember;
@@ -101,6 +103,39 @@ class MemberService
         }
     }
 
+    public function assignOrganizationEntitiesToDifferentMember(Organization $organization, Member $fromMember, Member $toMember): void
+    {
+        // Time entries
+        TimeEntry::query()
+            ->whereBelongsTo($organization, 'organization')
+            ->whereBelongsTo($fromMember, 'member')
+            ->update([
+                'user_id' => $toMember->user_id,
+                'member_id' => $toMember->getKey(),
+            ]);
+
+        // Project members
+        ProjectMember::query()
+            ->whereBelongsToOrganization($organization)
+            ->whereBelongsTo($fromMember, 'member')
+            ->whereDoesntHave('project', function (Builder $builder) use ($toMember): void {
+                /** @var Builder<Project> $builder */
+                $builder->whereHas('members', function (Builder $builder) use ($toMember): void {
+                    /** @var Builder<ProjectMember> $builder */
+                    $builder->where('member_id', $toMember->getKey());
+                });
+            })
+            ->update([
+                'user_id' => $toMember->user_id,
+                'member_id' => $toMember->getKey(),
+            ]);
+
+        ProjectMember::query()
+            ->whereBelongsToOrganization($organization)
+            ->whereBelongsTo($fromMember, 'member')
+            ->delete();
+    }
+
     /**
      * Change the ownership of an organization to a new user.
      * The previous owner will be demoted to an admin.
@@ -137,7 +172,7 @@ class MemberService
         $member->role = Role::Placeholder->value;
         $member->save();
 
-        $this->userService->assignOrganizationEntitiesToDifferentMember($member->organization, $user, $placeholderUser, $member);
+        $this->userService->assignOrganizationEntitiesToDifferentUser($member->organization, $user, $placeholderUser);
         if ($makeSureUserHasAtLeastOneOrganization) {
             $this->userService->makeSureUserHasAtLeastOneOrganization($user);
         }

app/Service/UserService.php

@@ -49,24 +49,10 @@ class UserService
     }
 
     /**
-     * Assign all organization entities (time entries, project members) from one user to another.
-     * This is useful when a placeholder user is replaced with a real user.
+     * This does NOT change the member id.
+     * This should only be used in if you want to change a member to a placeholder!
      */
     public function assignOrganizationEntitiesToDifferentUser(Organization $organization, User $fromUser, User $toUser): void
-    {
-        /** @var Member|null $toMember */
-        $toMember = Member::query()
-            ->whereBelongsTo($organization, 'organization')
-            ->whereBelongsTo($toUser, 'user')
-            ->first();
-        if ($toMember === null) {
-            throw new \InvalidArgumentException('User is not a member of the organization');
-        }
-
-        $this->assignOrganizationEntitiesToDifferentMember($organization, $fromUser, $toUser, $toMember);
-    }
-
-    public function assignOrganizationEntitiesToDifferentMember(Organization $organization, User $fromUser, User $toUser, Member $toMember): void
     {
         // Time entries
         TimeEntry::query()
@@ -74,7 +60,6 @@ class UserService
             ->whereBelongsTo($fromUser, 'user')
             ->update([
                 'user_id' => $toUser->getKey(),
-                'member_id' => $toMember->getKey(),
             ]);
 
         // Project members
@@ -83,7 +68,6 @@ class UserService
             ->whereBelongsTo($fromUser, 'user')
             ->update([
                 'user_id' => $toUser->getKey(),
-                'member_id' => $toMember->getKey(),
             ]);
     }