private function _buildQuery()
{
$treeId = intval($this->getTreeId());
$levels = JoaktreeHelper::getUserAccessLevels();
$displayAccess = JoaktreeHelper::getDisplayAccess();
$query = $this->_db->getQuery(true);
// select from persons
$query->select(' jpn.id ');
$query->select(' jpn.app_id ');
$query->select(' MIN( ' . JoaktreeHelper::getSelectFirstName() . ' ) AS firstName ');
$query->select(' MIN( ' . JoaktreeHelper::getSelectPatronym() . ' ) AS patronym ');
$query->select(' MIN( ' . JoaktreeHelper::getConcatenatedFamilyName() . ' ) AS familyName ');
$query->select(' MIN( ' . JoaktreeHelper::getSelectBirthYear() . ' ) AS birthDate ');
$query->select(' MIN( ' . JoaktreeHelper::getSelectDeathYear() . ' ) AS deathDate ');
$query->from(' #__joaktree_persons jpn ');
// select from admin persons
$query->innerJoin(JoaktreeHelper::getJoinAdminPersons(false));
// select from tree x persons
$query->innerJoin(' #__joaktree_tree_persons jtp ' . ' ON ( jtp.app_id = jpn.app_id ' . ' AND jtp.person_id = jpn.id ' . ' ) ');
$query->innerJoin(' #__joaktree_trees jte ' . ' ON ( jte.app_id = jtp.app_id ' . ' AND jte.id = jtp.tree_id ' . ' AND jte.published = true ' . ' AND jte.access IN ' . $levels . ' ' . ' ) ');
// select from birth and death
$query->leftJoin(JoaktreeHelper::getJoinBirth());
$query->leftJoin(JoaktreeHelper::getJoinDeath());
// Get the WHERE, GROUP BY and ORDER BY clauses for the query
$wheres = $this->_buildContentWhere();
foreach ($wheres as $where) {
$query->where(' ' . $where . ' ');
}
$query->group(' jpn.id ');
$query->group(' jpn.app_id ');
$query->order(' ' . $this->_buildContentOrderBy() . ' ');
return $query;
}