php - EntityMetadataWrapperException: unknown data property for field -

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i have been trying update code use entity wrappers access field values. have this:

$wrapper = entity_metadata_wrapper("node", $nid); print($wrapper->field_property_sample()->value());

instead of this:

print($node->field_property_sample[language_none][0]["value"]);

the problem encounter this:

entitymetadatawrapperexception: unknown data property field_property_sample.

is there way me workaround this?

i have 10 of these fields can throw exception , getting ugly

$wrapper = entity_metadata_wrapper("node", $nid);  try {   print($wrapper->field_property_sample()->value()); } catch (entitymetadatawrapperexception &e){   print(""); }  /** repeat 10 times **/

is there function can more or less call this?

$wrapper = entity_metadata_wrapper("node", $nid); print($wrapper->field_property_sample->exists() ? $wrapper->field_property_sample->value()  : "" );  /** repeat 10 times **/

yep, can use existing features of php language

try {   print($wrapper->field_property_sample->value()); } catch (entitymetadatawrapperexception $e) {   // recover }

or, since entitymetadatawrapper implements __isset() can use that:

print isset($wrapper->field_property_sample) ? $wrapper->field_property_sample->value() : '';

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