207 lines
8.5 KiB
Plaintext
207 lines
8.5 KiB
Plaintext
<?php
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/**
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* @file
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* Logs and displays content statistics for a site.
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*/
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use Drupal\Core\Entity\EntityInterface;
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use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
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use Drupal\Core\Routing\RouteMatchInterface;
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use Drupal\Core\Url;
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use Drupal\node\NodeInterface;
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/**
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* Implements hook_help().
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*/
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function statistics_help($route_name, RouteMatchInterface $route_match) {
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switch ($route_name) {
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case 'help.page.statistics':
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$output = '';
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$output .= '<h3>' . t('About') . '</h3>';
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$output .= '<p>' . t('The Statistics module shows you how often content is viewed. This is useful in determining which pages of your site are most popular. For more information, see the <a href=":statistics_do">online documentation for the Statistics module</a>.', array(':statistics_do' => 'https://www.drupal.org/documentation/modules/statistics/')) . '</p>';
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$output .= '<h3>' . t('Uses') . '</h3>';
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$output .= '<dl>';
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$output .= '<dt>' . t('Displaying popular content') . '</dt>';
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$output .= '<dd>' . t('The module includes a <em>Popular content</em> block that displays the most viewed pages today and for all time, and the last content viewed. To use the block, enable <em>Count content views</em> on the <a href=":statistics-settings">Statistics page</a>, and then you can enable and configure the block on the <a href=":blocks">Block layout page</a>.', array(':statistics-settings' => \Drupal::url('statistics.settings'), ':blocks' => (\Drupal::moduleHandler()->moduleExists('block')) ? \Drupal::url('block.admin_display') : '#')) . '</dd>';
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$output .= '<dt>' . t('Page view counter') . '</dt>';
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$output .= '<dd>' . t('The Statistics module includes a counter for each page that increases whenever the page is viewed. To use the counter, enable <em>Count content views</em> on the <a href=":statistics-settings">Statistics page</a>, and set the necessary <a href=":permissions">permissions</a> (<em>View content hits</em>) so that the counter is visible to the users.', array(':statistics-settings' => \Drupal::url('statistics.settings'), ':permissions' => \Drupal::url('user.admin_permissions', array(), array('fragment' => 'module-statistics')))) . '</dd>';
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$output .= '</dl>';
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return $output;
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case 'statistics.settings':
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return '<p>' . t('Settings for the statistical information that Drupal will keep about the site.') . '</p>';
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}
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}
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/**
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* Implements hook_ENTITY_TYPE_view() for node entities.
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*/
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function statistics_node_view(array &$build, EntityInterface $node, EntityViewDisplayInterface $display, $view_mode) {
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if (!$node->isNew() && $view_mode == 'full' && node_is_page($node) && empty($node->in_preview)) {
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$build['#attached']['library'][] = 'statistics/drupal.statistics';
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$settings = array('data' => array('nid' => $node->id()), 'url' => Url::fromUri('base:' . drupal_get_path('module', 'statistics') . '/statistics.php')->toString());
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$build['#attached']['drupalSettings']['statistics'] = $settings;
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}
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}
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/**
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* Implements hook_node_links_alter().
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*/
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function statistics_node_links_alter(array &$node_links, NodeInterface $entity, array &$context) {
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if ($context['view_mode'] != 'rss') {
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$node_links['#cache']['contexts'][] = 'user.permissions';
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if (\Drupal::currentUser()->hasPermission('view post access counter')) {
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$statistics = statistics_get($entity->id());
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if ($statistics) {
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$links['statistics_counter']['title'] = \Drupal::translation()->formatPlural($statistics['totalcount'], '1 view', '@count views');
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$node_links['statistics'] = array(
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'#theme' => 'links__node__statistics',
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'#links' => $links,
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'#attributes' => array('class' => array('links', 'inline')),
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);
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}
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$node_links['#cache']['max-age'] = \Drupal::config('statistics.settings')->get('display_max_age');
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}
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}
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}
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/**
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* Implements hook_cron().
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*/
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function statistics_cron() {
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$statistics_timestamp = \Drupal::state()->get('statistics.day_timestamp') ?: 0;
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if ((REQUEST_TIME - $statistics_timestamp) >= 86400) {
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// Reset day counts.
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db_update('node_counter')
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->fields(array('daycount' => 0))
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->execute();
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\Drupal::state()->set('statistics.day_timestamp', REQUEST_TIME);
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}
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// Calculate the maximum of node views, for node search ranking.
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\Drupal::state()->set('statistics.node_counter_scale', 1.0 / max(1.0, db_query('SELECT MAX(totalcount) FROM {node_counter}')->fetchField()));
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}
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/**
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* Returns the most viewed content of all time, today, or the last-viewed node.
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*
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* @param string $dbfield
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* The database field to use, one of:
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* - 'totalcount': Integer that shows the top viewed content of all time.
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* - 'daycount': Integer that shows the top viewed content for today.
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* - 'timestamp': Integer that shows only the last viewed node.
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* @param int $dbrows
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* The number of rows to be returned.
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*
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* @return SelectQuery|FALSE
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* A query result containing the node ID, title, user ID that owns the node,
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* and the username for the selected node(s), or FALSE if the query could not
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* be executed correctly.
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*/
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function statistics_title_list($dbfield, $dbrows) {
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if (in_array($dbfield, array('totalcount', 'daycount', 'timestamp'))) {
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$query = db_select('node_field_data', 'n');
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$query->addTag('node_access');
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$query->join('node_counter', 's', 'n.nid = s.nid');
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$query->join('users_field_data', 'u', 'n.uid = u.uid');
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return $query
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->fields('n', array('nid', 'title'))
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->fields('u', array('uid', 'name'))
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->condition($dbfield, 0, '<>')
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->condition('n.status', 1)
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// @todo This should be actually filtering on the desired node status
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// field language and just fall back to the default language.
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->condition('n.default_langcode', 1)
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->condition('u.default_langcode', 1)
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->orderBy($dbfield, 'DESC')
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->range(0, $dbrows)
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->execute();
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}
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return FALSE;
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}
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/**
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* Retrieves a node's "view statistics".
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*
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* @param int $nid
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* The node ID.
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*
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* @return array
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* An associative array containing:
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* - totalcount: Integer for the total number of times the node has been
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* viewed.
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* - daycount: Integer for the total number of times the node has been viewed
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* "today". For the daycount to be reset, cron must be enabled.
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* - timestamp: Integer for the timestamp of when the node was last viewed.
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*/
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function statistics_get($nid) {
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if ($nid > 0) {
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// Retrieve an array with both totalcount and daycount.
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return db_query('SELECT totalcount, daycount, timestamp FROM {node_counter} WHERE nid = :nid', array(':nid' => $nid), array('target' => 'replica'))->fetchAssoc();
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}
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}
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/**
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* Implements hook_ENTITY_TYPE_predelete() for node entities.
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*/
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function statistics_node_predelete(EntityInterface $node) {
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// Clean up statistics table when node is deleted.
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db_delete('node_counter')
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->condition('nid', $node->id())
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->execute();
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}
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/**
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* Implements hook_ranking().
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*/
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function statistics_ranking() {
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if (\Drupal::config('statistics.settings')->get('count_content_views')) {
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return array(
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'views' => array(
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'title' => t('Number of views'),
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'join' => array(
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'type' => 'LEFT',
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'table' => 'node_counter',
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'alias' => 'node_counter',
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'on' => 'node_counter.nid = i.sid',
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),
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// Inverse law that maps the highest view count on the site to 1 and 0
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// to 0. Note that the ROUND here is necessary for PostgreSQL and SQLite
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// in order to ensure that the :statistics_scale argument is treated as
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// a numeric type, because the PostgreSQL PDO driver sometimes puts
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// values in as strings instead of numbers in complex expressions like
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// this.
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'score' => '2.0 - 2.0 / (1.0 + node_counter.totalcount * (ROUND(:statistics_scale, 4)))',
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'arguments' => array(':statistics_scale' => \Drupal::state()->get('statistics.node_counter_scale') ?: 0),
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),
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);
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}
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}
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/**
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* Implements hook_preprocess_HOOK() for block templates.
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*/
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function statistics_preprocess_block(&$variables) {
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if ($variables['configuration']['provider'] == 'statistics') {
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$variables['attributes']['role'] = 'navigation';
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}
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}
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/**
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* Implements hook_block_alter().
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*
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* Removes the "popular" block from display if the module is not configured
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* to count content views.
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*/
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function statistics_block_alter(&$definitions) {
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$statistics_count_content_views = \Drupal::config('statistics.settings')->get('count_content_views');
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if (empty($statistics_count_content_views)) {
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unset($definitions['statistics_popular_block']);
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}
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}
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