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<?php |
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namespace CWP\Search\Extensions; |
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use SilverStripe\Forms\Validator; |
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class SynonymValidator extends Validator |
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{ |
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/** |
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* @var array |
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*/ |
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protected $fieldNames; |
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/** |
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* @inheritdoc |
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* |
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* @param array $fieldNames |
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*/ |
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public function __construct(array $fieldNames) |
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{ |
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$this->fieldNames = $fieldNames; |
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parent::__construct(); |
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} |
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/** |
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* @inheritdoc |
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* |
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* @param array $data |
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* |
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* @return mixed |
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*/ |
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public function php($data) |
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{ |
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foreach ($this->fieldNames as $fieldName) { |
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if (empty($data[$fieldName])) { |
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return; |
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} |
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$this->validateField($fieldName, $data[$fieldName]); |
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} |
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} |
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/** |
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* Validate field values, raising errors if the values are invalid. |
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* |
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* @param string $fieldName |
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* @param mixed $value |
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*/ |
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protected function validateField($fieldName, $value) |
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{ |
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if (!$this->validateValue($value)) { |
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$this->validationError( |
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$fieldName, |
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_t( |
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__CLASS__ . '.InvalidValue', |
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'Synonyms cannot contain words separated by spaces' |
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) |
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); |
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} |
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} |
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/** |
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* Check field values to see that they doesn't contain spaces between words. |
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* |
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* @param mixed $value |
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* |
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* @return bool |
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*/ |
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protected function validateValue($value) |
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{ |
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// strip empty lines |
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$lines = array_filter( |
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explode("\n", $value) |
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); |
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// strip comments (lines beginning with "#") |
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$lines = array_filter($lines, function ($line) { |
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$line = trim($line); |
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return !empty($line) && $line[0] !== '#'; |
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}); |
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// validate each line |
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foreach ($lines as $line) { |
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if (!$this->validateLine($line)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* Check each line to see that it doesn't contain spaces between words. |
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* |
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* @param string $line |
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* |
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* @return bool |
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*/ |
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protected function validateLine($line) |
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{ |
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$line = trim($line); |
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$parts = explode(',', $line); |
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$parts = array_filter($parts); |
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foreach ($parts as $part) { |
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if (!$this->validatePart($part)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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/** |
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* Check each part of the line doesn't contain spaces between words. |
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* |
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* @param string $part |
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* |
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* @return bool |
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*/ |
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protected function validatePart($part) |
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{ |
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if (strpos($part, '=>') !== false) { |
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$subs = explode('=>', $part); |
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$subs = array_filter($subs); |
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foreach ($subs as $sub) { |
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if (!$this->validateNoSpaces($sub)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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return $this->validateNoSpaces($part); |
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} |
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/** |
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* @param string $value |
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* |
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* @return bool |
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*/ |
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protected function validateNoSpaces($value) |
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{ |
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// allow spaces at the beginning and end of the value |
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$value = trim($value); |
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// does the value contain 1 or more whitespace characters? |
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if (preg_match('/\s+/', $value)) { |
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return false; |
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} |
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return true; |
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158
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} |
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159
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} |
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silverstripe /
cwp-search
