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<?php

/**

 * @file

 * Definition of views_plugin_argument_default_php.

 */

/**

 * Default argument plugin to provide a PHP code block.

 *

 * @ingroup views_argument_default_plugins

 */

class views_plugin_argument_default_php extends views_plugin_argument_default {

  /**

   * {@inheritdoc}

   */

  public function option_definition() {

    $options = parent::option_definition();

    $options['code'] = array('default' => '');

    return $options;

  }

  /**

   * {@inheritdoc}

   */

  public function options_form(&$form, &$form_state) {

    parent::options_form($form, $form_state);

    $form['code'] = array(

      '#type' => 'textarea',

      '#title' => t('PHP contextual filter code'),

      '#default_value' => $this->options['code'],

      '#description' => t('Enter PHP code that returns a value to use for this filter. Do not use <?php ?>. You must return only a single value for just this filter. Some variables are available: the view object will be "$view". The argument handler will be "$argument", for example you may change the title used for substitutions for this argument by setting "argument->validated_title"".'),

    );

    // Only do this if using one simple standard form gadget.

    $this->check_access($form, 'code');

  }

  /**

   * {@inheritdoc}

   */

  public function convert_options(&$options) {

    if (!isset($options['code']) && isset($this->argument->options['default_argument_php'])) {

      $options['code'] = $this->argument->options['default_argument_php'];

    }

  }

  /**

   * Only let users with PHP block visibility permissions set/modify this

   * default plugin.

   */

  public function access() {

    return user_access('use PHP for settings');

  }

  /**

   * {@inheritdoc}

   */

  public function get_argument() {

    // set up variables to make it easier to reference during the argument.

    $view = &$this->view;

    $argument = &$this->argument;

    ob_start();

    $result = eval($this->options['code']);

    ob_end_clean();

    return $result;

  }

}