Move into nested docroot

web/core/modules/datetime/datetime.views.inc

@@ -0,0 +1,52 @@
+<?php
+
+/**
+ * @file
+ * Provides views data for the datetime module.
+ */
+
+use Drupal\field\FieldStorageConfigInterface;
+
+/**
+ * Implements hook_field_views_data().
+ */
+function datetime_field_views_data(FieldStorageConfigInterface $field_storage) {
+  // @todo This code only covers configurable fields, handle base table fields
+  //   in https://www.drupal.org/node/2489476.
+  $data = views_field_default_views_data($field_storage);
+  foreach ($data as $table_name => $table_data) {
+    // Set the 'datetime' filter type.
+    $data[$table_name][$field_storage->getName() . '_value']['filter']['id'] = 'datetime';
+
+    // Set the 'datetime' argument type.
+    $data[$table_name][$field_storage->getName() . '_value']['argument']['id'] = 'datetime';
+
+    // Create year, month, and day arguments.
+    $group = $data[$table_name][$field_storage->getName() . '_value']['group'];
+    $arguments = [
+      // Argument type => help text.
+      'year' => t('Date in the form of YYYY.'),
+      'month' => t('Date in the form of MM (01 - 12).'),
+      'day' => t('Date in the form of DD (01 - 31).'),
+      'week' => t('Date in the form of WW (01 - 53).'),
+      'year_month' => t('Date in the form of YYYYMM.'),
+      'full_date' => t('Date in the form of CCYYMMDD.'),
+    ];
+    foreach ($arguments as $argument_type => $help_text) {
+      $data[$table_name][$field_storage->getName() . '_value_' . $argument_type] = [
+        'title' => $field_storage->getLabel() . ' (' . $argument_type . ')',
+        'help' => $help_text,
+        'argument' => [
+          'field' => $field_storage->getName() . '_value',
+          'id' => 'datetime_' . $argument_type,
+        ],
+        'group' => $group,
+      ];
+    }
+
+    // Set the 'datetime' sort handler.
+    $data[$table_name][$field_storage->getName() . '_value']['sort']['id'] = 'datetime';
+  }
+
+  return $data;
+}