function weather_cron in Weather 7.3

Same name and namespace in other branches

1. 5.6 weather.module \weather_cron()
2. 6.5 weather.module \weather_cron()
3. 7.2 weather.module \weather_cron()

Implements hook_cron().

Deletes expired forecasts and forecast information.

File

./weather.module, line 36

Display current weather data from many places in the world.

Code

function weather_cron() {

  // Calculate UTC time for yesterday.
  // This way, forecasts for western timezones which lag
  // behind UTC are not removed prematurely from the database.
  $yesterday_utc_time = gmdate('Y-m-d H:i:s', REQUEST_TIME - 86400);

  // Delete expired forecasts.
  db_delete('weather_forecasts')
    ->condition('time_to', $yesterday_utc_time, '<=')
    ->execute();

  // Delete expired information.
  db_delete('weather_forecast_information')
    ->condition('next_download_attempt', $yesterday_utc_time, '<=')
    ->execute();
}