function currency_views_preload in Currency 7

Same name and namespace in other branches

1. 6 views/currency.views.inc \currency_views_preload()

Calls currency_api_convert for every exchange rate that should be displayed according to filter and argument settings to ensure that rates are in the database when views performs it's query.

2 calls to currency_views_preload()

currency_handler_argument_currency::query in includes/views/handlers/currency_handler_argument_currency.inc

Set up the query for this argument.

currency_handler_filter_currency::query in includes/views/handlers/currency_handler_filter_currency.inc

Add this filter to the query.

File

includes/views/currency.views.inc, line 72

Register all of the basic handlers that views uses.

Code

function currency_views_preload($view) {
  static $processed = FALSE;
  if (!$processed) {

    // $this->value for keyed array of selected currencies
    if ($view->filter['currency_from']) {
      $selected_from = _currency_views_get_selected_options($view->filter['currency_from']->value);
    }
    elseif ($view->argument['currency_from'] && ($currency_from = $view->argument['currency_from']
      ->get_value())) {

      // process argument
      $selected_from = array(
        $currency_from,
      );
    }
    if ($view->filter['currency_to']) {
      $selected_to = _currency_views_get_selected_options($view->filter['currency_to']->value);
    }
    elseif ($view->argument['currency_to'] && ($currency_to = $view->argument['currency_to']
      ->get_value())) {
      $selected_to = array(
        $currency_to,
      );
    }
    if ($selected_from && $selected_to) {

      // selected currencies - make sure exchange rates are in database by calling currency_api for each from/to currency combination
      foreach ($selected_from as $currency_from) {
        foreach ($selected_to as $currency_to) {
          currency_api_convert($currency_from, $currency_to);
        }
      }
    }
    $processed = TRUE;
  }
}