Version 1

[yaffs-website] / web / core / modules / views / src / Plugin / views / field / UncacheableFieldHandlerTrait.php

diff --git a/web/core/modules/views/src/Plugin/views/field/UncacheableFieldHandlerTrait.php b/web/core/modules/views/src/Plugin/views/field/UncacheableFieldHandlerTrait.php
new file mode 100644 (file)
index 0000000..51bb1cc
--- /dev/null
+++ b/web/core/modules/views/src/Plugin/views/field/UncacheableFieldHandlerTrait.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace Drupal\views\Plugin\views\field;
+
+use Drupal\views\ResultRow;
+
+/**
+ * Trait encapsulating the logic for uncacheable field handlers.
+ */
+trait UncacheableFieldHandlerTrait {
+
+  /**
+   * {@inheritdoc}
+   *
+   * @see \Drupal\views\Plugin\views\Field\FieldHandlerInterface::render()
+   */
+  public function render(ResultRow $row) {
+    return $this->getFieldTokenPlaceholder();
+  }
+
+  /**
+   * {@inheritdoc}
+   *
+   * @see \Drupal\views\Plugin\views\Field\FieldHandlerInterface::postRender()
+   */
+  public function postRender(ResultRow $row, $output) {
+    $placeholder = $this->getFieldTokenPlaceholder();
+    $value = $this->doRender($row);
+    $this->last_render = str_replace($placeholder, $value, $output);
+    return [$placeholder => $value];
+  }
+
+  /**
+   * {@inheritdoc}
+   *
+   * @see \Drupal\views\Plugin\views\Field\FieldPluginBase::getFieldTokenPlaceholder()
+   */
+  abstract protected function getFieldTokenPlaceholder();
+
+  /**
+   * Actually renders the field markup.
+   *
+   * @param \Drupal\views\ResultRow $row
+   *   A result row.
+   *
+   * @return string
+   *   The field markup.
+   */
+  protected function doRender(ResultRow $row) {
+    return $this->getValue($row);
+  }
+
+  /**
+   * {@inheritdoc}
+   *
+   * @see \Drupal\views\Plugin\views\Field\FieldHandlerInterface::getValue()
+   */
+  abstract protected function getValue(ResultRow $row, $field = NULL);
+
+}