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   1  <?php
   2  // $Id: views_handler_field_date.inc,v 1.3 2009/06/02 18:20:18 merlinofchaos Exp $
   3  /**
   4   * A handler to provide proper displays for dates.
   5   *
   6   * @ingroup views_field_handlers
   7   */
   8  class views_handler_field_date extends views_handler_field {
   9    function option_definition() {
  10      $options = parent::option_definition();
  11  
  12      $options['date_format'] = array('default' => 'small');
  13      $options['custom_date_format'] = array('default' => '');
  14  
  15      return $options;
  16    }
  17  
  18    function options_form(&$form, &$form_state) {
  19      parent::options_form($form, $form_state);
  20      $time = time();
  21  
  22      $form['date_format'] = array(
  23        '#type' => 'select',
  24        '#title' => t('Date format'),
  25        '#options' => array(
  26          'small' => format_date($time, 'small'),
  27          'medium' => format_date($time, 'medium'),
  28          'large' => format_date($time, 'large'),
  29          'custom' => t('Custom'),
  30          'raw time ago' => t('Time ago'),
  31          'time ago' => t('Time ago (with "ago" appended)'),
  32          'raw time span' => t('Time span (future dates start with - )'),
  33          'time span' => t('Time span (with "ago/hence" appended)'),
  34        ),
  35        '#default_value' => isset($this->options['date_format']) ? $this->options['date_format'] : 'small',
  36      );
  37      $form['custom_date_format'] = array(
  38        '#type' => 'textfield',
  39        '#title' => t('Custom date format'),
  40        '#description' => t('If "Custom", see <a href="http://us.php.net/manual/en/function.date.php" target="_blank">the PHP docs</a> for date formats. If "Time ago" this is the the number of different units to display, which defaults to two.'),
  41        '#default_value' => isset($this->options['custom_date_format']) ? $this->options['custom_date_format'] : '',
  42        '#process' => array('views_process_dependency'),
  43        '#dependency' => array('edit-options-date-format' => array('custom', 'raw time ago', 'time ago', 'raw time span', 'time span')),
  44      );
  45    }
  46  
  47    function render($values) {
  48      $value = $values->{$this->field_alias};
  49      $format = $this->options['date_format'];
  50      if (in_array($format, array('custom', 'raw time ago', 'time ago', 'raw time span', 'time span'))) {
  51        $custom_format = $this->options['custom_date_format'];
  52      }
  53      
  54      if (!$value) {
  55        return theme('views_nodate');
  56      }
  57      else {
  58        $time_diff = time() - $value; // will be positive for a datetime in the past (ago), and negative for a datetime in the future (hence)
  59        switch ($format) {
  60          case 'raw time ago':
  61            return format_interval($time_diff, is_numeric($custom_format) ? $custom_format : 2);
  62          case 'time ago':
  63            return t('%time ago', array('%time' => format_interval($time_diff, is_numeric($custom_format) ? $custom_format : 2)));
  64          case 'raw time span':
  65            return ($time_diff < 0 ? '-' : '') . format_interval(abs($time_diff), is_numeric($custom_format) ? $custom_format : 2);
  66          case 'time span':
  67            return t(($time_diff < 0 ? '%time hence' : '%time ago'), array('%time' => format_interval(abs($time_diff), is_numeric($custom_format) ? $custom_format : 2)));
  68          case 'custom':
  69            return format_date($value, $format, $custom_format);
  70          default:
  71            return format_date($value, $format);
  72        }
  73      }
  74    }
  75  }