[wip] bulk create

CRM/Core/BAO/CustomField.php

@@ -193,6 +193,25 @@ protected static function doCreate($params) {
     return $customField;
   }
 
+  /**
+   * Create several fields at once in a mysql efficient way.
+   *
+   * The intention is that apiv4 would expose any BAO with bulkCreate as a new action.
+   *
+   * Note that in the first instance this supports 'create' only. It's possible edit
+   * is fine in the same function - just treading slowly.
+   *
+   * @param array $params
+   *   Array of arrays as would be passed into create
+   * @param array $defaults
+   *  Default parameters to be be merged into each of the params.
+   */
+  public function bulkCreate($params, $defaults) {
+    foreach ($params as $fieldParams) {
+      $fieldParams = array_merge($defaults, $fieldParams);
+    }
+  }
+
   /**
    * Fetch object based on array of properties.
    *

tests/phpunit/CRM/Core/BAO/CustomFieldTest.php

@@ -636,4 +636,15 @@ public function testGetFieldsForImport() {
     $this->assertEquals($expected, CRM_Core_BAO_CustomField::getFieldsForImport());
   }
 
+  /**
+   * Test the bulk create function works.
+   */
+  public function testBulkCreate() {
+    $customGroup = $this->customGroupCreate([
+      'extends' => 'Individual',
+      'title' => 'my bulk group',
+    ]);
+    CRM_Core_BAO_CustomField::bulkCreate([]);
+  }
+
 }