WordsFieldValidationRule.php in Field Validation 8
File
src/Plugin/FieldValidationRule/WordsFieldValidationRule.php
View source
<?php
namespace Drupal\field_validation\Plugin\FieldValidationRule;
use Drupal\Core\Form\FormStateInterface;
use Drupal\field_validation\ConfigurableFieldValidationRuleBase;
use Drupal\field_validation\FieldValidationRuleSetInterface;
class WordsFieldValidationRule extends ConfigurableFieldValidationRuleBase {
public function addFieldValidationRule(FieldValidationRuleSetInterface $field_validation_rule_set) {
return TRUE;
}
public function getSummary() {
$summary = parent::getSummary();
return $summary;
}
public function defaultConfiguration() {
return [
'min' => NULL,
'max' => NULL,
];
}
public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
$form['min'] = [
'#type' => 'textfield',
'#title' => 'Minimum number of words',
'#default_value' => $this->configuration['min'],
'#required' => TRUE,
];
$form['max'] = [
'#type' => 'textfield',
'#title' => 'Maximum number of words',
'#default_value' => $this->configuration['max'],
'#required' => TRUE,
];
return $form;
}
public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
parent::submitConfigurationForm($form, $form_state);
$this->configuration['min'] = $form_state
->getValue('min');
$this->configuration['max'] = $form_state
->getValue('max');
}
public function validate($params) {
$value = isset($params['value']) ? $params['value'] : '';
$rule = isset($params['rule']) ? $params['rule'] : null;
$context = isset($params['context']) ? $params['context'] : null;
$settings = array();
if (!empty($rule) && !empty($rule->configuration)) {
$settings = $rule->configuration;
}
if ($value != '') {
$flag = TRUE;
$length = count(explode(' ', trim(preg_replace('/\\s+/', ' ', str_replace(' ', ' ', strip_tags(str_replace('<', ' <', $value)))))));
if (isset($settings['min']) && $settings['min'] != '') {
$min = $settings['min'];
if ($length < $min) {
$flag = FALSE;
}
}
if (isset($settings['max']) && $settings['max'] != '') {
$max = $settings['max'];
if ($length > $max) {
$flag = FALSE;
}
}
if (!$flag) {
$context
->addViolation($rule
->getErrorMessage());
}
}
}
}