Club Drupal

<?php

/**

 * @file

 * Context condition plugin for date values.

 */

/**

 * Context condition plugin for date values.

 */

class date_context_date_condition extends context_condition_node {

  /**

   * {@inheritdoc}

   */

  public function condition_values() {

    $values = array();

    $fields = field_info_fields();

    foreach ($fields as $field_name => $field) {

      if (in_array($field['type'], array('date', 'datetime', 'datestamp'))) {

        $values[$field_name] = $field_name;

      }

    }

    return $values;

  }

  /**

   * {@inheritdoc}

   */

  public function options_form($context) {

    $defaults = $this->fetch_from_context($context, 'options');

    $options = array(

      '<' => t('Is less than'),

      '<=' => t('Is less than or equal to'),

      '>=' => t('Is greater than or equal to'),

      '>' => t('Is greater than'),

      '=' => t('Is equal to'),

      '!=' => t('Is not equal to'),

      'empty' => t('Is empty'),

      'not empty' => t('Is not Empty'),

    );

    $dependency_options = array('<', '<=', '>', '>=', '=', '!=');

    $form['operation'] = array(

      '#title' => t('Operation'),

      '#type' => 'select',

      '#options' => $options,

      '#description' => t('The comparison to perform to determine if the date field meets the condition. For multiple value date fields, all values will be checked to see if any meet the condition.'),

      '#default_value' => isset($defaults['operation']) ? $defaults['operation'] : '',

      '#required' => TRUE,

    );

    $form['value'] = array(

      '#title' => t('Value'),

      '#type' => 'textfield',

      '#description' => t("The value the field should contain to meet the condition. This can either be an absolute date in ISO format (YYYY-MM-DDTHH:MM:SS) or a relative string like '12AM today'. Examples: 2011-12-31T00:00:00, now, now +1 day, 12AM today, Monday next week. <a href=\"@relative_format\">More examples of relative date formats in the PHP documentation</a>.", array('@relative_format' => 'http://www.php.net/manual/en/datetime.formats.relative.php')),

      '#default_value' => isset($defaults['value']) ? $defaults['value'] : '',

      '#process' => array('ctools_dependent_process'),

      '#dependency' => array('edit-conditions-plugins-date-context-date-condition-options-operation' => $dependency_options),

    );

    return $form;

  }

  /**

   * {@inheritdoc}

   */

  public function execute($entity, $op) {

    if (in_array($op, array('view', 'form'))) {

      foreach ($this->get_contexts() as $context) {

        $options = $this->fetch_from_context($context, 'options');

        $fields = $this->fetch_from_context($context, 'values');

        foreach ($fields as $field_name => $label) {

          // If this field does not exist on this entity, just move along.

          if (empty($entity->{$field_name})) {

            continue;

          }

          $items = field_get_items('node', $entity, $field_name);

          // If there are no values, nothing to do unless we were looking for

          // 'empty' or '!='.

          if (empty($items)) {

            if ($options['operation'] == '!=' || $options['operation'] == 'empty') {

              $this->condition_met($context, $field_name);

            }

          }

          // We don't have to construct the date values if we're just testing

          // for 'not empty'.

          elseif ($options['operation'] == 'not empty') {

            $this->condition_met($context, $field_name);

          }

          // All other operations need to retrieve the date values for

          // comparision.

          else {

            $field = field_info_field($field_name);

            $timezone_db = date_get_timezone_db($field['settings']['tz_handling']);

            foreach ($items as $delta => $item) {

              $timezone = date_get_timezone($field['settings']['tz_handling'], $item['timezone']);

              $date = new DateObject($item['value'], $timezone_db);

              date_timezone_set($date, timezone_open($timezone));

              $date1 = $date->format(DATE_FORMAT_DATETIME);

              if (empty($item['value2'])) {

                $item['value2'] = $item['value'];

              }

              $date = new DateObject($item['value2'], $timezone_db);

              date_timezone_set($date, timezone_open($timezone));

              $date2 = $date->format(DATE_FORMAT_DATETIME);

              str_replace('now', 'today', $options['value']);

              $date = date_create($options['value'], date_default_timezone_object());

              $compdate = $date->format(DATE_FORMAT_DATETIME);

              switch ($options['operation']) {

                case '=':

                  if ($date2 >= $compdate && $date1 <= $compdate) {

                    $this->condition_met($context, $field_name);

                  }

                  break;

                case '>':

                  if ($date1 > $compdate) {

                    $this->condition_met($context, $field_name);

                  }

                  break;

                case '>=':

                  if ($date1 >= $compdate) {

                    $this->condition_met($context, $field_name);

                  }

                  break;

                case '<':

                  if ($date2 < $compdate) {

                    $this->condition_met($context, $field_name);

                  }

                  break;

                case '<=':

                  if ($date2 <= $compdate) {

                    $this->condition_met($context, $field_name);

                  }

                  break;

                case '!=':

                  if ($date1 < $compdate || $date2 > $compdate) {

                    $this->condition_met($context, $field_name);

                  }

                  break;

              }

            }

          }

        }

      }

    }

  }

}