/**
* Validates data against the set validation rules
*
* Returns boolean true when successful validate without errors.
*
* @param array $skip
* Optional array of fieldnames to skip on validation
*
* @return boolean
*/
protected function validate(array &$data, array $fields = [], bool $filter_before_validate = true, array $skip = [])
{
static $validator;
if (empty($fields)) {
// No and no fields in scheme means no validation rules so we have nothing to du here
if (empty($this->scheme['fields'])) {
return $data;
}
// Use the fields list from existing scheme
$fields = $this->scheme['fields'];
}
// Still no fields?
if (empty($fields)) {
return $data;
}
// Lets run our rules
foreach ($data as $key => $val) {
// Is this field inside the $skip array list?
if (in_array($key, $skip)) {
continue;
}
// Run possible filters before the validation process
if ($filter_before_validate && !empty($fields[$key]['filter'])) {
if (!is_array($fields[$key]['filter'])) {
$fields[$key]['filter'] = (array) $fields[$key]['filter'];
}
foreach ($fields[$key]['filter'] as $filter) {
$options = [];
if (is_array($filter)) {
$options = $filter[1];
$filter = $filter[0];
}
$result = filter_var($val, $filter, $options);
if ($result === false) {
$this->addError($key, sprintf($this->app->language->get('validator.filter'), $filter));
} else {
$data[$key] = $result;
}
}
}
if (empty($fields[$key]['validate'])) {
continue;
}
if (empty($validator)) {
$validator = new Validator();
}
if (!is_array($fields[$key]['validate'])) {
$fields[$key]['validate'] = (array) $fields[$key]['validate'];
}
$validator->setValue($val);
foreach ($fields[$key]['validate'] as $rule) {
$validator->parseRule($rule);
$validator->validate();
if (!$validator->isValid()) {
$result = $validator->getResult();
if (is_array($result)) {
$result = vsprintf($this->app->language->get($result[0]), $result[1]);
} else {
$result = $this->app->language->get($result);
}
$this->errors[$key][] = $result;
}
}
}
return $data;
}
/**
* Creates a rule object.
*
* Ideal for rules where you need to combine or accees another rule.
*
* @param string $rule_name
*
* @return \Validator\Rules\RuleInterface
*/
protected function createRule($rule_name) : RuleInterface
{
return $this->validator->createRule($rule_name);
}