[#14] XDedupe Resolver - prevent other resolvers to trigger re-render…

…ing of greetings

CRM/Moregreetings/Renderer.php

@@ -21,10 +21,18 @@
  */
 class CRM_Moregreetings_Renderer {
 
+  /** @var array list of contact ids that should be excluded from updating */
+  protected static $excluded_contact_ids = [];
+
   /**
    * Re-calculate the more-greetings for one contact
    */
   public static function updateMoreGreetings($contact_id, $contact = NULL) {
+    // check exclusion list
+    if (in_array($contact_id, self::$excluded_contact_ids)) {
+      return;
+    }
+
     // load the templates
     $templates = CRM_Core_BAO_Setting::getItem('moregreetings', 'moregreetings_templates');
     if (!is_array($templates)) {
@@ -168,4 +176,24 @@ public static function getUsedContactFields($templates) {
 
     return implode(',', array_keys($fields_used));
   }
+
+  /**
+   * Add a list of contact IDs to the exclusion list
+   *
+   * @param array $excluded_contact_ids
+   *   list of contact IDs to be excluded from rendering
+   */
+  public static function addExcludedContactIDs($excluded_contact_ids) {
+    self::$excluded_contact_ids = array_merge(self::$excluded_contact_ids, $excluded_contact_ids);
+  }
+
+  /**
+   * Clear the list of contact_ids to be excluded from rendering
+   *
+   * @return array
+   *   previously set list of contact IDs
+   */
+  public static function clearExcludedContactIDs() {
+    self::$excluded_contact_ids = [];
+  }
 }

CRM/Xdedupe/Resolver/MoreGreetings.php

@@ -52,6 +52,9 @@ public function resolve($main_contact_id, $other_contact_ids) {
     if (!empty($all_contact_ids)) {
       $all_contact_ids_list = implode(',', $all_contact_ids);
       CRM_Core_DAO::executeQuery("DELETE FROM civicrm_value_moregreetings WHERE entity_id IN ({$all_contact_ids_list})");
+
+      // suppress new generation
+      CRM_Moregreetings_Renderer::addExcludedContactIDs($all_contact_ids);
     }
 
     return TRUE;
@@ -65,6 +68,7 @@ public function resolve($main_contact_id, $other_contact_ids) {
    * @throws Exception if the conflict couldn't be resolved
    */
   public function postProcess($main_contact_id, $other_contact_ids) {
+    CRM_Moregreetings_Renderer::clearExcludedContactIDs();
     CRM_Moregreetings_Renderer::updateMoreGreetings($main_contact_id);
     // todo: other contacts, too? no, right!?
   }