views_handler_field_date.inc

<?php


/**
 * A handler to provide proper displays for dates.
 *
 * @ingroup views_field_handlers
 */
class views_handler_field_date extends views_handler_field {
    function option_definition() {
        $options = parent::option_definition();
        $options['date_format'] = array(
            'default' => 'small',
        );
        $options['custom_date_format'] = array(
            'default' => '',
        );
        return $options;
    }
    function options_form(&$form, &$form_state) {
        parent::options_form($form, $form_state);
        $time = time();
        $form['date_format'] = array(
            '#type' => 'select',
            '#title' => t('Date format'),
            '#options' => array(
                'small' => t('Short date format') . ' ' . format_date($time, 'small'),
                'medium' => t('Medium date format') . ' ' . format_date($time, 'medium'),
                'large' => t('Long date format') . ' ' . format_date($time, 'large'),
                'custom' => t('Custom'),
                'raw time ago' => t('Time ago'),
                'time ago' => t('Time ago (with "ago" appended)'),
                'raw time hence' => t('Time hence'),
                'time hence' => t('Time hence (with "hence" appended)'),
                'raw time span' => t('Time span (future dates start with - )'),
                'inverse time span' => t('Time span (past dates start with - )'),
                'time span' => t('Time span (with "ago/hence" appended)'),
            ),
            '#default_value' => isset($this->options['date_format']) ? $this->options['date_format'] : 'small',
        );
        $form['custom_date_format'] = array(
            '#type' => 'textfield',
            '#title' => t('Custom date format'),
            '#description' => t('If "Custom", see <a href="http://us.php.net/manual/en/function.date.php" target="_blank">the PHP docs</a> for date formats. If "Time ago", enter the number of different time units to display, which defaults to 2.'),
            '#default_value' => isset($this->options['custom_date_format']) ? $this->options['custom_date_format'] : '',
            '#process' => array(
                'views_process_dependency',
            ),
            '#dependency' => array(
                'edit-options-date-format' => array(
                    'custom',
                    'raw time ago',
                    'time ago',
                    'raw time hence',
                    'time hence',
                    'raw time span',
                    'inverse time span',
                    'time span',
                ),
            ),
        );
    }
    function render($values) {
        $value = $this->get_value($values);
        $format = $this->options['date_format'];
        if (in_array($format, array(
            'custom',
            'raw time ago',
            'time ago',
            'raw time hence',
            'time hence',
            'raw time span',
            'inverse time span',
            'time span',
        ))) {
            $custom_format = $this->options['custom_date_format'];
        }
        if ($value) {
            $time_diff = time() - $value;
            // will be positive for a datetime in the past (ago), and negative for a datetime in the future (hence)
            switch ($format) {
                case 'raw time ago':
                    return format_interval($time_diff, is_numeric($custom_format) ? $custom_format : 2);
                case 'time ago':
                    return t('%time ago', array(
                        '%time' => format_interval($time_diff, is_numeric($custom_format) ? $custom_format : 2),
                    ));
                case 'raw time hence':
                    return format_interval(-$time_diff, is_numeric($custom_format) ? $custom_format : 2);
                case 'time hence':
                    return t('%time hence', array(
                        '%time' => format_interval(-$time_diff, is_numeric($custom_format) ? $custom_format : 2),
                    ));
                case 'raw time span':
                    return ($time_diff < 0 ? '-' : '') . format_interval(abs($time_diff), is_numeric($custom_format) ? $custom_format : 2);
                case 'inverse time span':
                    return ($time_diff > 0 ? '-' : '') . format_interval(abs($time_diff), is_numeric($custom_format) ? $custom_format : 2);
                case 'time span':
                    return t($time_diff < 0 ? '%time hence' : '%time ago', array(
                        '%time' => format_interval(abs($time_diff), is_numeric($custom_format) ? $custom_format : 2),
                    ));
                case 'custom':
                    if ($custom_format == 'r') {
                        return format_date($value, $format, $custom_format, null, 'en');
                    }
                    return format_date($value, $format, $custom_format);
                default:
                    return format_date($value, $format);
            }
        }
    }

}