nl_tokens: Get unique error field name
pl_tokens: function ( err ) { var <mask> ; try { var fieldName = err . err . substring ( err . err . lastIndexOf ( '.$' ) + 2 , err . err . lastIndexOf ( '_1' ) ) ; output = fieldName . charAt ( 0 ) . toUpperCase ( ) + fieldName . slice ( 1 ) + ' already exists' ; } catch ( ex ) { output = 'Unique field already exists' ; } return output ; }