public static function XquantityStockItem::generateSampleValue in Commerce Extended Quantity 8

File

modules/xquantity_stock/src/Plugin/Field/FieldType/XquantityStockItem.php, line 91

Class

XquantityStockItem

Defines the 'xquantity_stock' field type.

Namespace

Drupal\xquantity_stock\Plugin\Field\FieldType

Code

public static function generateSampleValue(FieldDefinitionInterface $field_definition) {
  $settings = $field_definition
    ->getSettings();
  $precision = $settings['precision'] ?: 10;
  $scale = $settings['scale'] ?: 2;
  $max = '10';
  $min = $settings['min'] > 0 ? $settings['min'] : ($settings['unsigned'] ? pow(0.1, $scale) : '-10');

  // Get the number of decimal digits for the $max.
  $decimal_digits = Numeric::getDecimalDigits($max);

  // Do the same for the min and keep the higher number of decimal digits.
  $decimal_digits = max(Numeric::getDecimalDigits($min), $decimal_digits);

  // If $min = 1.234 and $max = 1.33 then $decimal_digits = 3.
  $scale = rand($decimal_digits, $scale);

  // @see "Example #1 Calculate a random floating-point number" in
  // http://php.net/manual/function.mt-getrandmax.php
  $random_decimal = $min + mt_rand() / mt_getrandmax() * ($max - $min);
  $values['value'] = Numeric::truncateDecimal($random_decimal, $scale);
  return $values;
}