3 namespace Drupal\Core\Field\Plugin\Field\FieldType;
5 use Drupal\Core\Field\FieldDefinitionInterface;
6 use Drupal\Core\Field\FieldStorageDefinitionInterface;
7 use Drupal\Core\Form\FormStateInterface;
8 use Drupal\Core\TypedData\DataDefinition;
11 * Defines the 'float' field type.
15 * label = @Translation("Number (float)"),
16 * description = @Translation("This field stores a number in the database in a floating point format."),
17 * category = @Translation("Number"),
18 * default_widget = "number",
19 * default_formatter = "number_decimal"
22 class FloatItem extends NumericItemBase {
27 public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
28 $properties['value'] = DataDefinition::create('float')
29 ->setLabel(t('Float'))
38 public static function schema(FieldStorageDefinitionInterface $field_definition) {
51 public function fieldSettingsForm(array $form, FormStateInterface $form_state) {
52 $element = parent::fieldSettingsForm($form, $form_state);
54 $element['min']['#step'] = 'any';
55 $element['max']['#step'] = 'any';
63 public static function generateSampleValue(FieldDefinitionInterface $field_definition) {
64 $settings = $field_definition->getSettings();
65 $precision = rand(10, 32);
67 $max = is_numeric($settings['max']) ?: pow(10, ($precision - $scale)) - 1;
68 $min = is_numeric($settings['min']) ?: -pow(10, ($precision - $scale)) + 1;
69 // @see "Example #1 Calculate a random floating-point number" in
70 // http://php.net/manual/function.mt-getrandmax.php
71 $random_decimal = $min + mt_rand() / mt_getrandmax() * ($max - $min);
72 $values['value'] = self::truncateDecimal($random_decimal, $scale);