acceptExposedInput example

// If we're checking for EMPTY or NOT, we don't need any input, and we can     // say that our input conditions are met by just having the right operator.     if ($this->operator == 'empty' || $this->operator == 'not empty') {
      return TRUE;
    }

    // If it's non-required and there's no value don't bother filtering.     if (!$this->options['expose']['required'] && empty($this->validated_exposed_input)) {
      return FALSE;
    }

    $rc = parent::acceptExposedInput($input);
    if ($rc) {
      // If we have previously validated input, override.       if (isset($this->validated_exposed_input)) {
        $this->value = $this->validated_exposed_input;
      }
    }

    return $rc;
  }

  public function validateExposed(&$form, FormStateInterface $form_state) {
    

// The "All" state for this type of filter could have a default value. If     // this is a non-multiple and non-required option, then this filter will     // participate by using the default settings *if* 'limit' is true.     if (empty($this->options['expose']['multiple']) && empty($this->options['expose']['required']) && !empty($this->options['expose']['limit'])) {
      $identifier = $this->options['expose']['identifier'];
      if ($input[$identifier] == 'All') {
        return TRUE;
      }
    }

    return parent::acceptExposedInput($input);
  }

  protected function valueSubmit($form, FormStateInterface $form_state) {
    // Drupal's FAPI system automatically puts '0' in for any checkbox that     // was not set, and the key to the checkbox if it is set.     // Unfortunately, this means that if the key to that checkbox is 0,     // we are unable to tell if that checkbox was set or not.
    // Luckily, the '#value' on the checkboxes form actually contains     // *only* a list of checkboxes that were set, and we can use that     // instead.

/** * {@inheritdoc} */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    // Form input keys that will not be included in $view->exposed_raw_data.     $exclude = ['submit', 'form_build_id', 'form_id', 'form_token', 'exposed_form_plugin', 'reset'];
    $values = $form_state->getValues();
    foreach (['field', 'filter'] as $type) {
      /** @var \Drupal\views\Plugin\views\ViewsHandlerInterface[] $handlers */
      $handlers = &$form_state->get('view')->$type;
      foreach ($handlers as $key => $info) {
        if ($handlers[$key]->acceptExposedInput($values)) {
          $handlers[$key]->submitExposed($form, $form_state);
        }
        else {
          // The input from the form did not validate, exclude it from the           // stored raw data.           $exclude[] = $key;
        }
      }
    }

    $view = $form_state->get('view');
    

// rewrite the input value so that it's in the correct format so that     // the parent gets the right data.     if (!empty($this->options['expose']['identifier'])) {
      $value = &$input[$this->options['expose']['identifier']];
      if (!is_array($value)) {
        $value = [
          'value' => $value,
        ];
      }
    }

    $rc = parent::acceptExposedInput($input);

    if (empty($this->options['expose']['required'])) {
      // We have to do some of our own checking for non-required filters.       $info = $this->operators();
      if (!empty($info[$this->operator]['values'])) {
        switch ($info[$this->operator]['values']) {
          case 1:
            if ($value['value'] === '') {
              return FALSE;
            }
            break;

          

  public function testAcceptExposedInput(bool $expected_result, array $options, array $input) {
    $definition = [
      'title' => 'Accept exposed input Test',
      'group' => 'Test',
    ];
    $filter = new FilterPluginBaseStub([], 'stub', $definition);
    $filter->options = $options;
    $this->assertSame($expected_result, $filter->acceptExposedInput($input));
  }

  /** * The data provider for testAcceptExposedInput. * * @return array * The data set. */
  public function acceptExposedInputProvider() {
    return [
      'not-exposed' => [TRUE, ['exposed' => FALSE], []],
      

// Store this because it will get overwritten.     $type = NULL;
    if ($this->isAGroup()) {
      if (is_array($this->group_info)) {
        $type = $this->group_info['type'];
      }
    }
    else {
      $type = $this->value['type'];
    }
    $rc = parent::acceptExposedInput($input);

    // Restore what got overwritten by the parent.     if (!is_null($type)) {
      $this->value['type'] = $type;
    }

    // Don't filter if value(s) are empty.     $operators = $this->operators();
    if (!empty($this->options['expose']['use_operator']) && !empty($this->options['expose']['operator_id'])) {
      $operator = $input[$this->options['expose']['operator_id']];
    }
    

$uids = [];
    if ($values = $form_state->getValue(['options', 'value'])) {
      foreach ($values as $value) {
        $uids[] = $value['target_id'];
      }
      sort($uids);
    }
    $form_state->setValue(['options', 'value'], $uids);
  }

  public function acceptExposedInput($input) {
    $rc = parent::acceptExposedInput($input);

    if ($rc) {
      // If we have previously validated input, override.       if (isset($this->validated_exposed_input)) {
        $this->value = $this->validated_exposed_input;
      }
    }

    return $rc;
  }

  

        foreach ($multiple_exposed_input as $group_id) {
          // Give this handler access to the exposed filter input.           if (!empty($this->exposed_data)) {
            if ($handlers[$id]->isAGroup()) {
              $converted = $handlers[$id]->convertExposedInput($this->exposed_data, $group_id);
              $handlers[$id]->storeGroupInput($this->exposed_data, $converted);
              if (!$converted) {
                continue;
              }
            }
            $rc = $handlers[$id]->acceptExposedInput($this->exposed_data);
            $handlers[$id]->storeExposedInput($this->exposed_data, $rc);
            if (!$rc) {
              continue;
            }
          }
          $handlers[$id]->setRelationship();
          $handlers[$id]->query($this->display_handler->useGroupBy());
        }
      }
    }
  }