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<?php |
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namespace Bricks; |
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use Bricks\Data\Transducer; |
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use Bricks\Data\Validator; |
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use Bricks\Exception\ConfigurationException; |
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use Bricks\Exception\InvalidRequestException; |
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use Psr\Http\Message\RequestInterface; |
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/** |
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* Class AbstractForm |
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* @package Bricks |
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*/ |
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abstract class AbstractForm implements FormInterface |
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{ |
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/** |
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* @var array |
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*/ |
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protected $data = []; |
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/** |
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* @var array |
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*/ |
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private $types = []; |
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/** |
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* @var array |
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*/ |
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private $validators = []; |
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/** |
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* @var array |
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*/ |
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private $cleanup = []; |
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public function __construct() |
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{ |
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$fields = $this->fields(); |
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if (!is_array($fields) || empty($fields)) { |
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throw new ConfigurationException('form is not configured yet'); |
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} |
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$this->parseConfiguration($fields); |
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} |
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/** |
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* @return static |
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*/ |
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public static function create() |
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{ |
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return new static(); |
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} |
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/** |
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* @return array |
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*/ |
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abstract protected function fields(): array; |
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/** |
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* {@inheritDoc} |
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*/ |
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public function setData(array $data) |
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{ |
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array_walk($data, function ($value, string $key) { |
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if (isset($this->validators[$key])) { |
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$this->data[$key] = $value; |
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} |
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}); |
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return $this; |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function getData(): array |
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{ |
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return array_filter($this->data, function (string $field) { |
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return !isset($this->cleanup[$field]); |
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}, ARRAY_FILTER_USE_KEY); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function handleRequest(RequestInterface $request) |
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{ |
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$method = strtoupper($request->getMethod()); |
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if ($method === 'GET' || $method === 'DELETE') { |
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parse_str($request->getUri()->getQuery(), $data); |
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} else { |
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$data = json_decode($request->getBody()->getContents(), true); |
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if (!isset($data) && json_last_error() !== JSON_ERROR_NONE) { |
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throw new InvalidRequestException('unable to parse json body: ' . json_last_error_msg()); |
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} |
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} |
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return $this->fetchRequestData($data); |
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} |
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/** |
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* {@inheritDoc} |
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*/ |
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public function validate() |
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{ |
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$rules = $this->buildValidationRules(); |
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$validator = Validator::create($this->data); |
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$validator->rules($rules); |
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$validator->validate(); |
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return $this; |
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} |
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/** |
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* @param array $data |
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* @return AbstractForm |
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*/ |
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protected function fetchRequestData(array $data) |
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{ |
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$processed = Transducer::create($this->types)->execute($data); |
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$fields = array_keys($this->validators); |
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foreach ($fields as $field) { |
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if (isset($processed[$field])) { |
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if (isset($this->data[$field]) && is_array($this->data[$field])) { |
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$this->data[$field] = array_merge($this->data[$field], $processed[$field]); |
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} else { |
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$this->data[$field] = $processed[$field]; |
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} |
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} |
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} |
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$unexpectedFields = array_diff(array_keys($data), $fields); |
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if (!empty($unexpectedFields)) { |
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throw new InvalidRequestException('unexpected fields: ' . implode(', ', $unexpectedFields)); |
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} |
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return $this; |
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} |
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/** |
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* @param array $fields |
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*/ |
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private function parseConfiguration(array $fields) |
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{ |
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array_walk($fields, function (array $config, string $field) { |
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$this->assertFieldConfigHasValidators($field, $config); |
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$this->validators[$field] = $config['validators']; |
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if (isset($config['type'])) { |
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$this->types[$field] = $config['type']; |
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} |
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if (isset($config['cleanup']) && $config['cleanup'] === true) { |
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$this->cleanup[$field] = true; |
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} |
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}); |
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} |
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/** |
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* @param string $field |
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* @param array $config |
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*/ |
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private function assertFieldConfigHasValidators(string $field, array $config) |
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{ |
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if (!isset($config['validators']) || !is_array($config['validators'])) { |
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throw new ConfigurationException('fields validation rules are not set: ' . $field); |
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} |
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} |
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/** |
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* @return array |
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*/ |
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2 |
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private function buildValidationRules(): array |
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{ |
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$rules = []; |
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foreach ($this->validators as $field => $config) { |
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foreach ($config as $type => $data) { |
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$rule = [$field]; |
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if (is_callable($data)) { |
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$rule[] = call_user_func($data); |
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} elseif (!is_bool($data)) { |
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$rule[] = $data; |
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} |
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$rules[$type][] = $rule; |
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} |
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} |
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return $rules; |
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} |
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} |
misantron /
bricks
