class CurrencyExchangerFixedRates in Currency 7.2

Provides manually entered exchange rates.

Hierarchy

• class \CurrencyExchangerFixedRates implements CurrencyExchangerInterface

5 string references to 'CurrencyExchangerFixedRates'

CurrencyExchangerFixedRatesUIWebTestCase::testCurrencyExchangerFixedRatesUI in currency/tests/CurrencyConverterFixedRatesUIWebTestCase.test

Test CurrencyExchanger's UI.

CurrencyExchangerFixedRatesWebTestCase::getInfo in currency/tests/CurrencyConverterFixedRatesWebTestCase.test

Implements DrupalTestCase::getInfo().

CurrencyExchangerWebTestCase::assertCurrencyExchangeRates in currency/tests/CurrencyConverterWebTestCase.test

Asserts that exchange rates can be retrieved.

currency_currency_exchanger_info in currency/currency.currency.inc

Implements hook_currency_exchanger_info().

hook_currency_exchanger_info in currency/currency.api.php

Expose currency exchangers.

File

currency/includes/CurrencyExchangerFixedRates.inc, line 11

Contains class CurrencyExchangerFixedRates.

class CurrencyExchangerFixedRates implements CurrencyExchangerInterface {

  /**
   * Implements CurrencyExchangerInterface::load().
   */
  static function load($currency_code_from, $currency_code_to) {
    $rates = self::loadAll();
    if (isset($rates[$currency_code_from]) && isset($rates[$currency_code_from][$currency_code_to])) {
      return $rates[$currency_code_from][$currency_code_to];
    }
    elseif (isset($rates[$currency_code_to]) && isset($rates[$currency_code_to][$currency_code_from])) {
      return currency_divide(1, $rates[$currency_code_to][$currency_code_from]);
    }
    return FALSE;
  }

  /**
   * Implements CurrencyExchangerInterface::loadMultiple().
   */
  static function loadMultiple(array $currency_codes) {
    $rates = array();
    foreach ($currency_codes as $currency_code_from => $currency_codes_to) {
      foreach ($currency_codes_to as $currency_code_to) {
        $rates[$currency_code_from][$currency_code_to] = self::load($currency_code_from, $currency_code_to);
      }
    }
    return $rates;
  }

  /**
   * Loads all available exchange rates.
   *
   * @return array
   *   The array structure is identical to the return value of
   *   self::loadMultiple().
   */
  static function loadAll() {
    $rates =& drupal_static(__CLASS__);
    if (is_null($rates)) {
      $rates = array();
      $result = db_select('currency_exchanger_fixed_rates', 'ccfr')
        ->fields('ccfr')
        ->execute();
      foreach ($result as $row) {
        $rates[$row->currency_code_from][$row->currency_code_to] = $row->rate;
      }
    }
    return $rates;
  }

  /**
   * Implements CurrencyExchangerInterface::operationsLinks().
   */
  static function operationsLinks() {
    return array(
      array(
        'title' => t('configure'),
        'href' => 'admin/config/regional/currency-exchange/fixed',
      ),
    );
  }

  /**
   * Saves a exchange rate.
   *
   * @param string $currency_code_from
   * @param string $currency_code_to
   * @param string $rate
   *
   * @return int
   *   MergeQuery::STATUS_INSERT or MergeQuery::STATUS_UPDATE.
   */
  static function save($currency_code_from, $currency_code_to, $rate) {
    $rates =& drupal_static(__CLASS__);
    $key = array(
      'currency_code_from' => $currency_code_from,
      'currency_code_to' => $currency_code_to,
    );
    $merge_status = db_merge('currency_exchanger_fixed_rates')
      ->key($key)
      ->fields(array_merge($key, array(
      'rate' => $rate,
    )))
      ->execute();
    $rates[$currency_code_from][$currency_code_to] = $rate;
    return $merge_status;
  }

  /**
   * Deletes a exchange rate.
   *
   * @param string $currency_code_from
   * @param string $currency_code_to
   *
   * @return NULL
   */
  static function delete($currency_code_from, $currency_code_to) {
    $rates =& drupal_static(__CLASS__);
    db_delete('currency_exchanger_fixed_rates')
      ->condition('currency_code_from', $currency_code_from)
      ->condition('currency_code_to', $currency_code_to)
      ->execute();
    unset($rates[$currency_code_from][$currency_code_to]);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
CurrencyExchangerFixedRates::delete	static	function	Deletes a exchange rate.
CurrencyExchangerFixedRates::load	static	function	Implements CurrencyExchangerInterface::load(). Overrides CurrencyExchangerInterface::load
CurrencyExchangerFixedRates::loadAll	static	function	Loads all available exchange rates.
CurrencyExchangerFixedRates::loadMultiple	static	function	Implements CurrencyExchangerInterface::loadMultiple(). Overrides CurrencyExchangerInterface::loadMultiple
CurrencyExchangerFixedRates::operationsLinks	static	function	Implements CurrencyExchangerInterface::operationsLinks(). Overrides CurrencyExchangerInterface::operationsLinks
CurrencyExchangerFixedRates::save	static	function	Saves a exchange rate.