dcat-8.x-1.x-dev/dcat_import/dcat_import.module

<?php

/**
 * @file
 * Contains dcat_import.module..
 */

use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function dcat_import_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    // Main module help for the dcat_import module.
    case 'help.page.dcat_import':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Import DCAT feeds.') . '</p>';
      return $output;

    default:
  }
}

/**
 * Implements hook_cron().
 *
 * Controls the size of the log table.
 */
function dcat_import_cron() {
  $row_limit = 10000;
  if (\Drupal::service('module_handler')->moduleExists('dblog')) {
    $row_limit = \Drupal::config('dblog.settings')->get('row_limit');
  }

  // For row limit n, get the wid of the nth row in descending id order.
  // Counting the most recent n rows avoids issues with wid number sequences,
  // e.g. auto_increment value > 1 or rows deleted directly from the table.
  if ($row_limit > 0) {
    $db = \Drupal::database();
    $min_row = $db->select('dcat_import_log', 'l')
      ->fields('l', ['id'])
      ->orderBy('id', 'DESC')
      ->range($row_limit - 1, 1)
      ->execute()->fetchField();

    // Delete all table entries older than the nth row, if nth row was found.
    if ($min_row) {
      $db->delete('dcat_import_log')
        ->condition('id', $min_row, '<')
        ->execute();
    }
  }
}