function FieldTranslationSynchronizer::itemHash

Computes a hash code for the specified item.

Parameters

array $items: An array of field items.

int $delta: The delta identifying the item to be processed.

array $properties: An array of column names to be synchronized.

Return value

string A hash code that can be used to identify the item.

1 call to FieldTranslationSynchronizer::itemHash()

FieldTranslationSynchronizer::synchronizeItems in core/modules/content_translation/src/FieldTranslationSynchronizer.php

File

core/modules/content_translation/src/FieldTranslationSynchronizer.php, line 334

Class

FieldTranslationSynchronizer

Provides field translation synchronization capabilities.

Namespace

Drupal\content_translation

Code

protected function itemHash(array $items, $delta, array $properties) {
    $values = [];
    if (isset($items[$delta])) {
        foreach ($properties as $property) {
            if (!empty($items[$delta][$property])) {
                $value = $items[$delta][$property];
                // String and integer values are by far the most common item values,
                // thus we special-case them to improve performance.
                $values[] = is_string($value) || is_int($value) ? $value : hash('sha256', serialize($value));
            }
            else {
                // Explicitly track also empty values.
                $values[] = '';
            }
        }
    }
    return implode('.', $values);
}