[Import] [ref] Move function to parent for use by siblings

CRM/Contact/Import/Form/Preview.php

@@ -241,26 +241,6 @@ class CRM_Contact_Import_Form_Preview extends CRM_Import_Form_Preview {
     $importJob->isComplete();
   }
 
-  /**
-   * Get the mapped fields as an array of labels.
-   *
-   * e.g
-   * ['First Name', 'Employee Of - First Name', 'Home - Street Address']
-   *
-   * @return array
-   * @throws \API_Exception
-   * @throws \CRM_Core_Exception
-   */
-  protected function getMappedFieldLabels(): array {
-    $mapper = [];
-    $parser = new CRM_Contact_Import_Parser_Contact();
-    $parser->setUserJobID($this->getUserJobID());
-    foreach ($this->getSubmittedValue('mapper') as $columnNumber => $mappedField) {
-      $mapper[$columnNumber] = $parser->getMappedFieldLabel($parser->getMappingFieldFromMapperInput($mappedField, 0, $columnNumber));
-    }
-    return $mapper;
-  }
-
   /**
    * @return \CRM_Contact_Import_Parser_Contact
    */

CRM/Import/Forms.php

@@ -567,4 +567,24 @@ class CRM_Import_Forms extends CRM_Core_Form {
     return NULL;
   }
 
+  /**
+   * Get the mapped fields as an array of labels.
+   *
+   * e.g
+   * ['First Name', 'Employee Of - First Name', 'Home - Street Address']
+   *
+   * @return array
+   * @throws \API_Exception
+   * @throws \CRM_Core_Exception
+   */
+  protected function getMappedFieldLabels(): array {
+    $mapper = [];
+    $parser = new CRM_Contact_Import_Parser_Contact();
+    $parser->setUserJobID($this->getUserJobID());
+    foreach ($this->getSubmittedValue('mapper') as $columnNumber => $mappedField) {
+      $mapper[$columnNumber] = $parser->getMappedFieldLabel($parser->getMappingFieldFromMapperInput($mappedField, 0, $columnNumber));
+    }
+    return $mapper;
+  }
+
 }