Mitgliederverwaltung/.plans/open/issue-201-count-archived-loads-all-members.md

Issue #201: countArchived() Loads All Members into Memory

Problem

The MemberService::countArchived() method loads ALL members into memory just to count archived ones:

public function countArchived(): int {
    $allMembers = $this->memberMapper->findAll(null, null, true);
    return count(array_filter($allMembers, fn(Member $m) => $m->getDeletedAt() !== null));
}

This is extremely inefficient for large member databases.

Impact

• Memory exhaustion with large member counts
• Slow archive page loads
• N+1 query problem (sub-entities loaded unnecessarily)

Solution

Add a COUNT query to the mapper:

public function countArchived(): int {
    $qb = $this->db->getQueryBuilder();
    $qb->select($qb->createFunction('COUNT(*)'))
        ->from($this->getTableName())
        ->where($qb->expr()->isNull('deleted_at'));
    
    // Add: where status = 'geloescht' or deleted_at IS NOT NULL
    ...
}

Alternatively, add a deleted_at IS NOT NULL check to the existing findAll() method and return only the count.

Tasks

• Add MemberMapper::countArchived(): int using SELECT COUNT(*) WHERE deleted_at IS NOT NULL
• Update MemberService::countArchived() to use the new mapper method
• Verify the count matches the archive list page size

Labels

• bug
• backend
• priority:high
• performance