How to get datas from this table 'directory_currency_rate'

Question

Table contains these columns.

I need to get data from this table 'directory_currency_rate'

which is come under this directory

/vendor/magento/module-directory/Model/Currency.php
/vendor/magento/module-directory/Model//ResourceModel/Currency.php

This model file does not have any collection.php file so can't able to get datas from this table.

Anyone know how to get data from this table ?

Thanks in advance

Answer 1

If you can not get using any class or methods, then you can use SQL select statement as below example.

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$resource = $objectManager->get('Magento\Framework\App\ResourceConnection');
$connection = $resource->getConnection();
$tableName = $resource->getTableName('directory_currency_rate');

// SELECT DATA 
$fields = array('rate');
$sql = $connection->select()                      
                  ->from($tableName, $fields) // to select some particular fields                  
                  ->where('currency_from = ?', 'USD')
                  ->where('currency_to = ?', 'EUR'); // adding WHERE condition with AND
$result = $connection->fetchAll($sql); 
echo '<pre>'; print_r($result); echo '</pre>'; 

Answer 2

You can use the Magento\Directory\Api\CurrencyInformationAcquirerInterface and its method getCurrencyInfo which return all available currencies and its conversion rates.

On the my test host it returns next result:

If you want to take plain response from the database I'll recommend you to write own query.

Here the code example which can be run from external script (outside Magento):

<?php
use Magento\Framework\App\Bootstrap;

require __DIR__ . '/app/bootstrap.php';
$params = $_SERVER;

$bootstrap = Bootstrap::create(BP, $params);

$obj = $bootstrap->getObjectManager();

$state = $obj->get('Magento\Framework\App\State');
$state->setAreaCode('frontend');

$currencyInformation = $obj->get('Magento\Directory\Api\CurrencyInformationAcquirerInterface');
$currenciesAndRates = $currencyInformation->getCurrencyInfo();

In your class you should use di: add the Magento\Directory\Api\CurrencyInformationAcquirerInterface in its construct method and use it.