field_set_empty

Versions

7

field_set_empty($field, $items)

Helper function to filter out empty values.

On order to keep marker rows in the database, the function ensures that the right number of 'all columns NULL' values is kept.

TODO D7: poorly named...

Parameters

array $field

array $items

Return value

array returns filtered and adjusted item array

Related topics

Field API

Attach custom data fields to Drupal objects.

Code

modules/field/field.module, line 310

<?php
function field_set_empty($field, $items) {
  $function = $field['module'] . '_field_is_empty';
  // We ensure the function is loaded, but explicitly break if it is missing.
  function_exists($function);
  foreach ((array) $items as $delta => $item) {
    if ($function($item, $field)) {
      unset($items[$delta]);
    }
  }
  return array_values($items);
}
?>

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