MDL-78129 core_communication: Add update membership api

communication/classes/processor.php

@@ -171,6 +171,21 @@ class processor {
         );
     }
 
+    /**
+     * Get all the user ids flagged as deleted.
+     *
+     * @return array
+     */
+    public function get_all_delete_flagged_userids(): array {
+        global $DB;
+        return $DB->get_fieldset_select(
+            'communication_user',
+            'userid',
+            'commid = ? AND deleted = ?',
+            [$this->instancedata->id, 1]
+        );
+    }
+
     /**
      * Create communication user record for mapping and sync.
      *
@@ -400,6 +415,15 @@ class processor {
     /**
      * Get communication instance id.
      *
+     * @return int
+     */
+    public function get_instance_id(): int {
+        return $this->instancedata->instanceid;
+    }
+
+    /**
+     * Get communication instance component.
+     *
      * @return string
      */
     public function get_component(): string {