--- /dev/null
+<?php
+
+/**
+ * @file
+ * Install and update functions for the Statistics module.
+ */
+
+/**
+ * Implements hook_uninstall().
+ */
+function statistics_uninstall() {
+ // Remove states.
+ \Drupal::state()->delete('statistics.node_counter_scale');
+ \Drupal::state()->delete('statistics.day_timestamp');
+}
+
+/**
+ * Implements hook_schema().
+ */
+function statistics_schema() {
+ $schema['node_counter'] = [
+ 'description' => 'Access statistics for {node}s.',
+ 'fields' => [
+ 'nid' => [
+ 'description' => 'The {node}.nid for these statistics.',
+ 'type' => 'int',
+ 'unsigned' => TRUE,
+ 'not null' => TRUE,
+ 'default' => 0,
+ ],
+ 'totalcount' => [
+ 'description' => 'The total number of times the {node} has been viewed.',
+ 'type' => 'int',
+ 'unsigned' => TRUE,
+ 'not null' => TRUE,
+ 'default' => 0,
+ 'size' => 'big',
+ ],
+ 'daycount' => [
+ 'description' => 'The total number of times the {node} has been viewed today.',
+ 'type' => 'int',
+ 'unsigned' => TRUE,
+ 'not null' => TRUE,
+ 'default' => 0,
+ 'size' => 'medium',
+ ],
+ 'timestamp' => [
+ 'description' => 'The most recent time the {node} has been viewed.',
+ 'type' => 'int',
+ 'unsigned' => TRUE,
+ 'not null' => TRUE,
+ 'default' => 0,
+ ],
+ ],
+ 'primary key' => ['nid'],
+ ];
+
+ return $schema;
+}
+
+/**
+ * Disable the Statistics module if the node module is not enabled.
+ */
+function statistics_update_8001() {
+ if (!\Drupal::moduleHandler()->moduleExists('node')) {
+ if (\Drupal::service('module_installer')->uninstall(['statistics'], TRUE)) {
+ return 'The statistics module depends on the node module and has therefore been uninstalled.';
+ }
+ else {
+ return 'There was an error uninstalling the statistcs module.';
+ }
+ }
+}
+
+/**
+ * Disable the Statistics module if the node module is not enabled.
+ */
+function statistics_update_8002() {
+ // Set the new configuration setting for max age to the initial value.
+ \Drupal::configFactory()->getEditable('statistics.settings')->set('display_max_age', 3600)->save();
+}
+
+/**
+ * Remove access_log settings.
+ */
+function statistics_update_8300() {
+ \Drupal::configFactory()->getEditable('statistics.settings')->clear('access_log')->save();
+}