/**
* Generate SQL query like "EXISTS(SELECT 1 FROM farm_teams .... WHERE ...) to check FARM_TEAMS permission.
* Table `farms` should have alias `f`.
* If farmId is set, when JOIN table farms to get envId from it.
*
* @param int $userId Identifier of User
* @param int $farmId optional Identifier of Farm
* @return string
*/
public static function getUserTeamOwnershipSql($userId, $farmId = null)
{
$farm = new Farm();
$farmTeam = new FarmTeam();
$accountTeamUser = new Account\TeamUser();
$accountTeamEnv = new Account\TeamEnvs();
$sql = "EXISTS(" . "SELECT 1 FROM {$farmTeam->table()}" . "JOIN {$accountTeamUser->table()} ON {$accountTeamUser->columnTeamId} = {$farmTeam->columnTeamId} " . "JOIN {$accountTeamEnv->table()} ON {$accountTeamEnv->columnTeamId} = {$farmTeam->columnTeamId} " . ($farmId ? "JOIN {$farm->table('f')} ON {$farmTeam->columnFarmId} = {$farm->columnId('f')}" : "") . "WHERE {$accountTeamEnv->columnEnvId()} = {$farm->columnEnvId('f')} " . "AND " . ($farmId ? "{$farm->columnId('f')} = " . $farm->db()->qstr($farmId) : "{$farm->columnId('f')} = {$farmTeam->columnFarmId}") . " " . "AND {$accountTeamUser->columnUserId} = " . $farm->db()->qstr($userId) . ")";
return $sql;
}