--- /dev/null
+<?php
+
+namespace Drupal\views\Plugin\views\cache;
+
+use Drupal\Core\Datetime\DateFormatterInterface;
+use Drupal\Core\Cache\Cache;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Symfony\Component\HttpFoundation\Request;
+
+/**
+ * Simple caching of query results for Views displays.
+ *
+ * @ingroup views_cache_plugins
+ *
+ * @ViewsCache(
+ * id = "time",
+ * title = @Translation("Time-based"),
+ * help = @Translation("Simple time-based caching of data.")
+ * )
+ */
+class Time extends CachePluginBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected $usesOptions = TRUE;
+
+ /**
+ * The date formatter service.
+ *
+ * @var \Drupal\Core\Datetime\DateFormatterInterface
+ */
+ protected $dateFormatter;
+
+ /**
+ * The current request.
+ *
+ * @var \Symfony\Component\HttpFoundation\Request
+ */
+ protected $request;
+
+ /**
+ * Constructs a Time cache plugin object.
+ *
+ * @param array $configuration
+ * A configuration array containing information about the plugin instance.
+ * @param string $plugin_id
+ * The plugin_id for the plugin instance.
+ * @param mixed $plugin_definition
+ * The plugin implementation definition.
+ * @param \Drupal\Core\Datetime\DateFormatterInterface $date_formatter
+ * The date formatter service.
+ * @param \Symfony\Component\HttpFoundation\Request $request
+ * The current request.
+ */
+ public function __construct(array $configuration, $plugin_id, $plugin_definition, DateFormatterInterface $date_formatter, Request $request) {
+ $this->dateFormatter = $date_formatter;
+ $this->request = $request;
+
+ parent::__construct($configuration, $plugin_id, $plugin_definition);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+ return new static(
+ $configuration,
+ $plugin_id,
+ $plugin_definition,
+ $container->get('date.formatter'),
+ $container->get('request_stack')->getCurrentRequest()
+ );
+ }
+
+ protected function defineOptions() {
+ $options = parent::defineOptions();
+ $options['results_lifespan'] = ['default' => 3600];
+ $options['results_lifespan_custom'] = ['default' => 0];
+ $options['output_lifespan'] = ['default' => 3600];
+ $options['output_lifespan_custom'] = ['default' => 0];
+
+ return $options;
+ }
+
+ public function buildOptionsForm(&$form, FormStateInterface $form_state) {
+ parent::buildOptionsForm($form, $form_state);
+ $options = [60, 300, 1800, 3600, 21600, 518400];
+ $options = array_map([$this->dateFormatter, 'formatInterval'], array_combine($options, $options));
+ $options = [0 => $this->t('Never cache')] + $options + ['custom' => $this->t('Custom')];
+
+ $form['results_lifespan'] = [
+ '#type' => 'select',
+ '#title' => $this->t('Query results'),
+ '#description' => $this->t('The length of time raw query results should be cached.'),
+ '#options' => $options,
+ '#default_value' => $this->options['results_lifespan'],
+ ];
+ $form['results_lifespan_custom'] = [
+ '#type' => 'textfield',
+ '#title' => $this->t('Seconds'),
+ '#size' => '25',
+ '#maxlength' => '30',
+ '#description' => $this->t('Length of time in seconds raw query results should be cached.'),
+ '#default_value' => $this->options['results_lifespan_custom'],
+ '#states' => [
+ 'visible' => [
+ ':input[name="cache_options[results_lifespan]"]' => ['value' => 'custom'],
+ ],
+ ],
+ ];
+ $form['output_lifespan'] = [
+ '#type' => 'select',
+ '#title' => $this->t('Rendered output'),
+ '#description' => $this->t('The length of time rendered HTML output should be cached.'),
+ '#options' => $options,
+ '#default_value' => $this->options['output_lifespan'],
+ ];
+ $form['output_lifespan_custom'] = [
+ '#type' => 'textfield',
+ '#title' => $this->t('Seconds'),
+ '#size' => '25',
+ '#maxlength' => '30',
+ '#description' => $this->t('Length of time in seconds rendered HTML output should be cached.'),
+ '#default_value' => $this->options['output_lifespan_custom'],
+ '#states' => [
+ 'visible' => [
+ ':input[name="cache_options[output_lifespan]"]' => ['value' => 'custom'],
+ ],
+ ],
+ ];
+ }
+
+ public function validateOptionsForm(&$form, FormStateInterface $form_state) {
+ $custom_fields = ['output_lifespan', 'results_lifespan'];
+ foreach ($custom_fields as $field) {
+ $cache_options = $form_state->getValue('cache_options');
+ if ($cache_options[$field] == 'custom' && !is_numeric($cache_options[$field . '_custom'])) {
+ $form_state->setError($form[$field . '_custom'], $this->t('Custom time values must be numeric.'));
+ }
+ }
+ }
+
+ public function summaryTitle() {
+ $results_lifespan = $this->getLifespan('results');
+ $output_lifespan = $this->getLifespan('output');
+ return $this->dateFormatter->formatInterval($results_lifespan, 1) . '/' . $this->dateFormatter->formatInterval($output_lifespan, 1);
+ }
+
+ protected function getLifespan($type) {
+ $lifespan = $this->options[$type . '_lifespan'] == 'custom' ? $this->options[$type . '_lifespan_custom'] : $this->options[$type . '_lifespan'];
+ return $lifespan;
+ }
+
+ protected function cacheExpire($type) {
+ $lifespan = $this->getLifespan($type);
+ if ($lifespan) {
+ $cutoff = REQUEST_TIME - $lifespan;
+ return $cutoff;
+ }
+ else {
+ return FALSE;
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function cacheSetMaxAge($type) {
+ $lifespan = $this->getLifespan($type);
+ if ($lifespan) {
+ return $lifespan;
+ }
+ else {
+ return Cache::PERMANENT;
+ }
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function getDefaultCacheMaxAge() {
+ // The max age, unless overridden by some other piece of the rendered code
+ // is determined by the output time setting.
+ return (int) $this->cacheSetMaxAge('output');
+ }
+
+}