public function getCurrentAvgEurRate($targetcurrency, Gpf_DateTime_Range $range)
{
$sql = new Gpf_SqlBuilder_SelectBuilder();
$sql->select->add('avg(' . Gpf_Db_Table_CurrencyRates::RATE . ')', Gpf_Db_Table_CurrencyRates::RATE);
$sql->from->add(Gpf_Db_Table_CurrencyRates::getName());
$sql->where->add(Gpf_Db_Table_CurrencyRates::SOURCE_CURRENCY, '=', 'EUR');
$sql->where->add(Gpf_Db_Table_CurrencyRates::TARGET_CURRENCY, '=', $targetcurrency);
$sql->where->add(Gpf_Db_Table_CurrencyRates::TYPE, '=', Gpf_Db_CurrencyRate::TYPE_DAILY);
$dateCondition = new Gpf_SqlBuilder_CompoundWhereCondition();
$coumpoundCondWithin = new Gpf_SqlBuilder_CompoundWhereCondition();
$coumpoundCondWithin->add(Gpf_Db_Table_CurrencyRates::VALID_FROM, '>=', $range->getFrom()->toDateTime());
$coumpoundCondWithin->add(Gpf_Db_Table_CurrencyRates::VALID_TO, '<=', $range->getTo()->toDateTime());
$dateCondition->addCondition($coumpoundCondWithin, 'OR');
$coumpoundCondBefore = new Gpf_SqlBuilder_CompoundWhereCondition();
$coumpoundCondBefore->add(Gpf_Db_Table_CurrencyRates::VALID_FROM, '<=', $range->getFrom()->toDateTime());
$coumpoundCondBefore->add(Gpf_Db_Table_CurrencyRates::VALID_TO, '>=', $range->getFrom()->toDateTime());
$dateCondition->addCondition($coumpoundCondBefore, 'OR');
$coumpoundCondAfter = new Gpf_SqlBuilder_CompoundWhereCondition();
$coumpoundCondAfter->add(Gpf_Db_Table_CurrencyRates::VALID_FROM, '<=', $range->getTo()->toDateTime());
$coumpoundCondAfter->add(Gpf_Db_Table_CurrencyRates::VALID_TO, '>=', $range->getTo()->toDateTime());
$dateCondition->addCondition($coumpoundCondAfter, 'OR');
$sql->where->addCondition($dateCondition);
Gpf_Log::debug($sql->toString());
Gpf_Log::debug('Avg rate: ' . $sql->getOneRow()->get(Gpf_Db_Table_CurrencyRates::RATE));
return $sql->getOneRow()->get(Gpf_Db_Table_CurrencyRates::RATE);
}
/**
*
* @param $from timestamp or datetime string
* @param $to timestamp or datetime string
*/
public function setRange(Gpf_DateTime_Range $range) {
$this->setDateFrom($range->getFrom());
$this->setDateTo($range->getTo());
}