function hook_field_is_empty
hook_field_is_empty($item, $field)
Define what constitutes an empty item for a field type.
Parameters
$item: An item that may or may not be empty.
$field: The field to which $item belongs.
Return value
TRUE if $field's type considers $item not to contain any data; FALSE otherwise.
Related topics
File
- modules/field/field.api.php, line 693
- Hooks provided by the Field module.
Code
function hook_field_is_empty($item, $field) { if (empty($item['value']) && (string) $item['value'] !== '0') { return TRUE; } return FALSE; }
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https://api.drupal.org/api/drupal/modules!field!field.api.php/function/hook_field_is_empty/7.x