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<?php
$plugin = array(
'label' => t('Match against a field'),
'description' => t("Validate that user-entered data matches against a field, for example must match user's realname."),
'handler' => array(
'class' => 'field_validation_match_field_validator',
),
);
class field_validation_match_field_validator extends field_validation_validator {
public function validate() {
$settings = $this->rule->settings;
if ($this->value != '') {
$flag = TRUE;
$query = new EntityFieldQuery();
if (!empty($settings['entity_type'])) {
$query
->entityCondition('entity_type', $settings['entity_type']);
}
if (!empty($settings['bundle'])) {
$query
->entityCondition('bundle', $settings['bundle']);
}
if (!empty($settings['field_name']) && !empty($settings['column'])) {
$query
->fieldCondition($settings['field_name'], $settings['column'], $this->value);
}
$query
->addMetaData('account', user_load(1));
$flag = (bool) $query
->range(0, 1)
->count()
->execute();
if (!empty($settings['reverse'])) {
$flag = $flag ? FALSE : TRUE;
}
if (!$flag) {
$this
->set_error();
}
}
}
function settings_form(&$form, &$form_state) {
$default_settings = $this
->get_default_settings($form, $form_state);
$form['settings']['entity_type'] = array(
'#title' => t('Entity type'),
'#description' => t("Machine name. Entity type of the field that to be matched against."),
'#type' => 'textfield',
'#default_value' => isset($default_settings['entity_type']) ? $default_settings['entity_type'] : '',
);
$form['settings']['bundle'] = array(
'#title' => t('Bundle'),
'#description' => t("Machine name. Bundle of the field that to be matched against."),
'#type' => 'textfield',
'#default_value' => isset($default_settings['bundle']) ? $default_settings['bundle'] : '',
);
$form['settings']['field_name'] = array(
'#title' => t('Field name'),
'#description' => t("Machine name. Name of the field that to be matched against."),
'#type' => 'textfield',
'#default_value' => isset($default_settings['field_name']) ? $default_settings['field_name'] : '',
);
$form['settings']['column'] = array(
'#title' => t('Column'),
'#description' => t("Column of the field that to be matched against."),
'#type' => 'textfield',
'#default_value' => isset($default_settings['column']) ? $default_settings['column'] : '',
);
$form['settings']['reverse'] = array(
'#title' => t('Reverse'),
'#description' => t("If it is checked, it means must not match the field."),
'#type' => 'checkbox',
'#default_value' => isset($default_settings['reverse']) ? $default_settings['reverse'] : FALSE,
);
parent::settings_form($form, $form_state);
}
}