Render Refactoring

src/Plugin/Field/FieldFormatter/ViewfieldFormatter.php

@@ -0,0 +1,104 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\viewfield\Plugin\Field\FieldFormatter\ViewfieldFormatter.
+ */
+
+
+namespace Drupal\viewfield\Plugin\Field\FieldFormatter;
+
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Field\FormatterBase;
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\views\Views;
+
+/**
+ * Plugin implementation of the 'viewfield_formatter' formatter.
+ *
+ * @FieldFormatter(
+ *   id = "viewfield_formatter",
+ *   label = @Translation("Viewfield formatter"),
+ *   field_types = {
+ *     "viewfield"
+ *   }
+ * )
+ */
+class ViewfieldFormatter extends FormatterBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function viewElements(FieldItemListInterface $items, $langcode) {
+    $elements = array();
+
+    foreach ($items as $delta => $item) {
+      /* @var $item \Drupal\Core\Field\FieldItemBase */
+      /* @var $entity \Drupal\Core\Entity\Entity */
+      $entity = $item->getEntity();
+      list($view_name, $view_display) = explode('|', $item->vname, 2);
+      $view = Views::getView($view_name);
+      $view_args = $this->getViewArgs($item->vargs, $entity);
+      // Build the view display's renderable array per item.
+      $elements[$delta] = $view->buildRenderable($view_display, $view_args);
+      $elements[$delta]['#access'] = $view && $view->access($view_display);
+    }
+    return $elements;
+  }
+
+  /**
+   * Parse argument string into an array and perform token replacements.
+   *
+   * @param string $view_args
+   *   The argument string from the entity edit/add form.
+   *
+   * @param \Drupal\Core\Entity\EntityInterface $entity
+   *   The entity to which the field is attached.
+   *
+   * @return array
+   *   List of arguments ready to be passed to a rendering method for a view.
+   */
+  protected function getViewArgs($view_args, EntityInterface $entity) {
+    $args = array();
+    $token_data = array($entity->getEntityTypeId() => $entity);
+
+    if (!empty($view_args)) {
+      $pos = 0;
+      while ($pos < strlen($view_args)) {
+        $found = FALSE;
+        // If string starts with a quote, start after quote and get everything
+        // before next quote.
+        if (strpos($view_args, '"', $pos) === $pos) {
+          if (($quote = strpos($view_args, '"', ++$pos)) !== FALSE) {
+            // Skip pairs of quotes.
+            while (!(($ql = strspn($view_args, '"', $quote)) & 1)) {
+              $quote = strpos($view_args, '"', $quote + $ql);
+            }
+            $args[] = str_replace('""', '"', substr($view_args, $pos, $quote + $ql - $pos - 1));
+            $pos = $quote + $ql + 1;
+            $found = TRUE;
+          }
+        }
+        elseif (($comma = strpos($view_args, ',', $pos)) !== FALSE) {
+          // Otherwise, get everything before next comma.
+          $args[] = substr($view_args, $pos, $comma - $pos);
+          // Skip to after comma and repeat
+          $pos = $comma + 1;
+          $found = TRUE;
+        }
+        if (!$found) {
+          $args[] = substr($view_args, $pos);
+          $pos = strlen($view_args);
+        }
+      }
+
+      $token = \Drupal::token();
+      foreach ($args as $key => $value) {
+        $args[$key] = $token->replace($value, $token_data);
+      }
+    }
+
+    return $args;
+  }
+
+}

src/Plugin/Field/FieldType/ViewfieldItem.php

@@ -22,7 +22,7 @@
  *   label = @Translation("Viewfield"),
  *   description = @Translation("Viewfield field type. Stores view name and arguments."),
  *   default_widget = "viewfield_select",
- *   default_formatter = "viewfield_default"
+ *   default_formatter = "viewfield_formatter"
  * )
  */
 class ViewfieldItem extends FieldItemBase {

src/Tests/ViewFieldTest.php

@@ -77,7 +77,7 @@ function testFieldCreation() {
       ->save();
     entity_get_display('node', 'article', 'full')
       ->setComponent($field_name, array(
-        'type' => 'viewfield_default',
+        'type' => 'viewfield_formatter',
       ))
       ->save();