function NumericFormatterBase::viewElements

Overrides FormatterInterface::viewElements

File

core/lib/Drupal/Core/Field/Plugin/Field/FieldFormatter/NumericFormatterBase.php, line 64

Class

NumericFormatterBase

Parent plugin for decimal and integer formatters.

Namespace

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
    $elements = [];
    $settings = $this->getFieldSettings();
    foreach ($items as $delta => $item) {
        $output = $this->numberFormat($item->value);
        // Account for prefix and suffix.
        if ($this->getSetting('prefix_suffix')) {
            $prefixes = isset($settings['prefix']) ? array_map([
                'Drupal\\Core\\Field\\FieldFilteredMarkup',
                'create',
            ], explode('|', $settings['prefix'])) : [
                '',
            ];
            $suffixes = isset($settings['suffix']) ? array_map([
                'Drupal\\Core\\Field\\FieldFilteredMarkup',
                'create',
            ], explode('|', $settings['suffix'])) : [
                '',
            ];
            $prefix = count($prefixes) > 1 ? $this->formatPlural($item->value, $prefixes[0], $prefixes[1]) : $prefixes[0];
            $suffix = count($suffixes) > 1 ? $this->formatPlural($item->value, $suffixes[0], $suffixes[1]) : $suffixes[0];
            $output = $prefix . $output . $suffix;
        }
        // Output the raw value in a content attribute if the text of the HTML
        // element differs from the raw value (for example when a prefix is used).
        if (isset($item->_attributes) && $item->value != $output) {
            $item->_attributes += [
                'content' => $item->value,
            ];
        }
        $elements[$delta] = [
            '#markup' => $output,
        ];
    }
    return $elements;
}