'title' => ts('Financial Type ID'),
'description' => ts('FK to Financial Type(for membership price sets only).'),
'where' => 'civicrm_contribution_product.financial_type_id',
- 'default' => 'NULL',
+ 'default' => NULL,
'table_name' => 'civicrm_contribution_product',
'entity' => 'ContributionProduct',
'bao' => 'CRM_Contribute_DAO_ContributionProduct',