diff core/modules/layout_builder/src/InlineBlockUsage.php @ 4:a9cd425dd02b

Update, including to Drupal core 8.6.10

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/layout_builder/src/InlineBlockUsage.php	Thu Feb 28 13:11:55 2019 +0000
@@ -0,0 +1,113 @@
+<?php
+
+namespace Drupal\layout_builder;
+
+use Drupal\Core\Database\Connection;
+use Drupal\Core\Entity\EntityInterface;
+
+/**
+ * Service class to track inline block usage.
+ *
+ * @internal
+ */
+class InlineBlockUsage {
+
+  /**
+   * The database connection.
+   *
+   * @var \Drupal\Core\Database\Connection
+   */
+  protected $database;
+
+  /**
+   * Creates an InlineBlockUsage object.
+   *
+   * @param \Drupal\Core\Database\Connection $database
+   *   The database connection.
+   */
+  public function __construct(Connection $database) {
+    $this->database = $database;
+  }
+
+  /**
+   * Adds a usage record.
+   *
+   * @param int $block_content_id
+   *   The block content id.
+   * @param \Drupal\Core\Entity\EntityInterface $entity
+   *   The layout entity.
+   */
+  public function addUsage($block_content_id, EntityInterface $entity) {
+    $this->database->merge('inline_block_usage')
+      ->keys([
+        'block_content_id' => $block_content_id,
+        'layout_entity_id' => $entity->id(),
+        'layout_entity_type' => $entity->getEntityTypeId(),
+      ])->execute();
+  }
+
+  /**
+   * Gets unused inline block IDs.
+   *
+   * @param int $limit
+   *   The maximum number of block content entity IDs to return.
+   *
+   * @return int[]
+   *   The entity IDs.
+   */
+  public function getUnused($limit = 100) {
+    $query = $this->database->select('inline_block_usage', 't');
+    $query->fields('t', ['block_content_id']);
+    $query->isNull('layout_entity_id');
+    $query->isNull('layout_entity_type');
+    return $query->range(0, $limit)->execute()->fetchCol();
+  }
+
+  /**
+   * Remove usage record by layout entity.
+   *
+   * @param \Drupal\Core\Entity\EntityInterface $entity
+   *   The layout entity.
+   */
+  public function removeByLayoutEntity(EntityInterface $entity) {
+    $query = $this->database->update('inline_block_usage')
+      ->fields([
+        'layout_entity_type' => NULL,
+        'layout_entity_id' => NULL,
+      ]);
+    $query->condition('layout_entity_type', $entity->getEntityTypeId());
+    $query->condition('layout_entity_id', $entity->id());
+    $query->execute();
+  }
+
+  /**
+   * Delete the inline blocks' the usage records.
+   *
+   * @param int[] $block_content_ids
+   *   The block content entity IDs.
+   */
+  public function deleteUsage(array $block_content_ids) {
+    if (!empty($block_content_ids)) {
+      $query = $this->database->delete('inline_block_usage')->condition('block_content_id', $block_content_ids, 'IN');
+      $query->execute();
+    }
+  }
+
+  /**
+   * Gets usage record for inline block by ID.
+   *
+   * @param int $block_content_id
+   *   The block content entity ID.
+   *
+   * @return object
+   *   The usage record with properties layout_entity_id and layout_entity_type.
+   */
+  public function getUsage($block_content_id) {
+    $query = $this->database->select('inline_block_usage');
+    $query->condition('block_content_id', $block_content_id);
+    $query->fields('inline_block_usage', ['layout_entity_id', 'layout_entity_type']);
+    $query->range(0, 1);
+    return $query->execute()->fetchObject();
+  }
+
+}