Refactored the views csv query plugin to introduced custom query and connection class.

src/Event/PreCacheEvent.php

@@ -2,7 +2,6 @@
 
 namespace Drupal\views_csv_source\Event;
 
-use Drupal\views\ViewExecutable;
 use Symfony\Contracts\EventDispatcher\Event;
 
 /**
@@ -15,50 +14,34 @@ class PreCacheEvent extends Event {
    */
   const VIEWS_CSV_SOURCE_PRE_CACHE = 'views_csv_source.pre_cache';
 
-  /**
-   * The view executable.
-   *
-   * @var \Drupal\views\ViewExecutable
-   */
-  protected $viewExecutable;
-
-  /**
-   * The Views CSV query result body.
-   *
-   * @var string
-   */
-  protected $data;
-
   /**
    * Constructs the object.
    *
-   * @param \Drupal\views\ViewExecutable $viewExecutable
-   *   The view executable.
+   * @param string $cacheId
+   *   The cache id.
    * @param string $data
    *   The views CSV query result body.
    */
-  public function __construct(ViewExecutable $viewExecutable, string $data) {
-    $this->viewExecutable = $viewExecutable;
-    $this->data = $data;
+  public function __construct(protected string $cacheId, protected string $data) {
   }
 
   /**
    * Get view executable.
    *
-   * @return \Drupal\views\ViewExecutable
-   *   Return view executable.
+   * @return string
+   *   Return cache id.
    */
-  public function getViewExecutable(): ViewExecutable {
-    return $this->viewExecutable;
+  public function getCacheId(): string {
+    return $this->cacheId;
   }
 
   /**
-   * Get view result data.
+   * Get the data.
    *
    * @return string
-   *   Return view data.
+   *   Return data.
    */
-  public function getViewData(): string {
+  public function getData(): string {
     return $this->data;
   }
 
@@ -66,9 +49,9 @@ class PreCacheEvent extends Event {
    * Set the data for this event.
    *
    * @param string $data
-   *   The data to override view result data.
+   *   The data to override result data.
    */
-  public function setViewData(string $data) {
+  public function setData(string $data) {
     $this->data = $data;
   }