PHP OOP - Validator 7

Kolejna prosta reguła – MinRule. Do dzieła!

Na czym stanęliśmy:

<?php 

/*
$form_rules =  [
    'email' => ['required', 'email'],
    'password' => ['required'],
    'confirmPassword' => ['required', 'match:password'],
    'name' => ['unique:people.name'],
    'country' => ['in:USA,Poland'],
    'age' => ['min:18']
];
*/

$form_data = [ 
    'email' => 'john.doe@gmail.com',
    'password' => md5('helloworld'),
    'confirmPassword' => md5('helloworld'),
    'name' => 'Janet',
    'country' => 'USA',
    'age' => 19
];



interface RuleInterface
{
  public function validate(array $data, string $field, array $params): bool;

  public function getMessage(array $data, string $field, array $params): string;
}

class RequiredRule implements RuleInterface
{
 //(...)
}

class EmailRule implements RuleInterface
{
 //(...)
}
class UrlRule implements RuleInterface
{
 //(...)
}

class MatchRule implements RuleInterface
{
 //(...)
}

class ConfigINI {
//(...)
}

class PDOConnection {
//(...)
}

class UniqueRule implements RuleInterface
{
 //(...)
}


class InRule implements RuleInterface
{
 //(...)
}

Jak zbierzemy projekt do kupy to będziemy korzystać z autoloadingu composera. Na razie jednak dopisujemy kolejną regułę:

class MinRule implements RuleInterface
{
  public function validate(array $data, string $field, array $params): bool
  {
    if (empty($params[0])) {
      throw new InvalidArgumentException("Minimum length not specified");
    }

    $length = (int) $params[0];
    return $data[$field] >= $length;
  }
  public function getMessage(array $data, string $field, array $params): string
  {
    return "Must be at least {$params[0]}";
  }
}

Teraz postaram się odtworzyć proces parsowania naszego schema z regułami:

$field = 'age';
$rule = new MinRule;
$params = array_slice(explode(":", "min:18"), 1);

$in = $rule->validate($form_data, $field, $params);
if(!$in){
    echo $rule->getMessage($form_data, $field, $params);
}

Sprawdźmy, czy działa podając jakąś większą liczbę:

$field = 'age';
$rule = new MinRule;
$params = array_slice(explode(":", "min:28"), 1);

$in = $rule->validate($form_data, $field, $params);
if(!$in){
    echo $rule->getMessage($form_data, $field, $params);
}
//Must be at least 28

PHP OOP – Validator 7