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Drupal 7 - Why does $acc->value()->name print out the username?

<?php
$involved_users = array();
//grab usernames from user reference field of a node
$project = entity_metadata_wrapper('node', $node);
// field_users is user reference field
foreach ($project->field_users as $acc) {
  $involved_users[] = $acc->value()->name;
}

var_dump($involved_users);
?>

Hi Guys,

I got this bit of code from http://pixeljets.com/blog/writing-robust-code-uses-fields-drupal-7

I have been going through it but I can't seem to figure out how "$acc->value()->name;" work?

What is value()? Is it PHP method or a Drupal one. I can't find any documentation on this.

Thanks!

Solution

  • If you read the blog post you provided carefully, you'll see that the value() method is provided by entity_metadata_wrapper() from the Entity module.