function _commerce_file_element_value_is_empty in Commerce File 7

Returns TRUE if value is considered empty

See also

_form_validate()

2 calls to _commerce_file_element_value_is_empty()

commerce_file_limit_duration_element_validate in includes/commerce_file.elements.inc

FAPI element validate callback for limit integer element type.

commerce_file_limit_integer_element_validate in includes/commerce_file.elements.inc

FAPI element validate callback for limit textfield element type.

File

./commerce_file.module, line 1519

Provides integration of file licenses with Commerce

Code

function _commerce_file_element_value_is_empty($value) {
  $is_empty_string = is_string($value) && drupal_strlen(trim($value)) == 0;
  $is_empty_value = $value === 0;
  return $is_empty_string || $is_empty_value;
}