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Drupal example source code file (time.inc)

This example Drupal source code file (time.inc) is included in the DevDaily.com "Drupal Source Code Warehouse" project. The intent of this project is to help you "Learn Drupal by Example".

PHP - Drupal tags/keywords

12-hour, array, component, default_value, element, format, function, header, if, isset, php, return, time, value

The time.inc Drupal example source code

<?php

/**
 * @file
 * Webform module time component.
 */

// Time depends on functions provided by date.
webform_component_include('date');

/**
 * Implementation of _webform_defaults_component().
 */
function _webform_defaults_time() {
  return array(
    'name' => '',
    'form_key' => NULL,
    'pid' => 0,
    'weight' => 0,
    'value' => '',
    'mandatory' => 0,
    'extra' => array(
      'timezone' => 'user',
      'hourformat' => '12-hour',
      'title_display' => 0,
      'description' => '',
    ),
  );
}

/**
 * Implementation of _webform_theme_component().
 */
function _webform_theme_time() {
  return array(
    'webform_time' => array(
      'arguments' => array('element' => NULL),
    ),
    'webform_display_time' => array(
      'arguments' => array('element' => NULL),
    ),
  );
}

/**
 * Implementation of _webform_edit_component().
 */
function _webform_edit_time($component) {
  $form = array();
  $form['value'] = array(
    '#type' => 'textfield',
    '#title' => t('Default value'),
    '#default_value' => $component['value'],
    '#description' => t('The default value of the field.') . '<br />' . t('Accepts a time in any <a href="http://www.gnu.org/software/tar/manual/html_chapter/Date-input-formats.html">GNU Date Input Format</a>. Strings such as now, +2 hours, and 10:30pm are all valid.'),
    '#size' => 60,
    '#maxlength' => 127,
    '#weight' => 0,
  );
  $form['extra']['timezone'] = array(
    '#type' => 'radios',
    '#title' => t('Timezone'),
    '#default_value' => empty($component['extra']['timezone']) ? 'user' : $component['extra']['timezone'],
    '#description' => t('Adjust the default time value according to a specific timezone.'),
    '#options' => array('user' => t('User timezone'), 'site' => t('Website timezone')),
    '#weight' => 0,
    '#access' => variable_get('configurable_timezones', 1) && module_exists('date_timezone'),
  );
  $form['display']['hourformat'] = array(
    '#type' => 'radios',
    '#title' => t('Time Format'),
    '#default_value' => isset($component['extra']['hourformat']) ? $component['extra']['hourformat'] : '12-hour',
    '#description' => t('Format the display of the time in 12 or 24 hours.'),
    '#options' => array('12-hour' => t('12-hour (am/pm)'), '24-hour' => t('24-hour')),
    '#weight' => 2,
    '#parents' => array('extra', 'hourformat'),
  );
  return $form;
}

/**
 * Implementation of _webform_render_component().
 */
function _webform_render_time($component, $value = NULL, $filter = TRUE) {
  $element = array(
    '#title' => $filter ? _webform_filter_xss($component['name']) : $component['name'],
    '#title_display' => $component['extra']['title_display'] ? $component['extra']['title_display'] : 'before',
    '#required' => $component['mandatory'],
    '#weight' => $component['weight'],
    '#description' => $filter ? _webform_filter_descriptions($component['extra']['description']) : $component['extra']['description'],
    '#element_validate' => array('webform_validate_time'),
    '#hourformat' => $component['extra']['hourformat'],
    '#after_build' => array('webform_expand_time'),
    '#theme' => 'webform_time',
    '#theme_wrappers' => array('webform_element_wrapper'),
    '#pre_render' => array('webform_element_title_display'),
    '#post_render' => array('webform_element_wrapper'),
    '#webform_component' => $component,
  );

  if (drupal_strlen($component['value']) > 0) {
    // Adjust the time based on the user or site timezone.
    // The "timezone_name" variable is provided by DateAPI in Drupal 6.
    if (variable_get('configurable_timezones', 1) && $component['extra']['timezone'] == 'user') {
      $timezone_name = isset($GLOBALS['user']->timezone_name) ? $GLOBALS['user']->timezone_name : NULL;
    }
    else {
      $timezone_name = variable_get('date_default_timezone_name', NULL);
    }

    if (isset($timezone_name) && class_exists('DateTimeZone')) {
      $timezone = new DateTimeZone($timezone_name);
      $datetime = new DateTime($component['value'], $timezone);
      $default_values = webform_date_array($datetime->format('c'), 'time');
    }
    else {
      $default_values = webform_date_array(date('c', strtotime($component['value'])), 'time');
    }
  }
  else {
    $default_values = array(
      'hour' => '',
      'minute' => '',
      'second' => '',
    );
  }

  if (!empty($value[0])) {
    $default_values = webform_date_array($value[0], 'time');
  }

  $first_hour = 0;
  $last_hour = 23;
  if ($component['extra']['hourformat'] == '12-hour') {
    $first_hour = 1;
    $last_hour = 12;
    $default_values = webform_time_convert($default_values, '12-hour');
    $default_values['ampm'] = $default_values['ampm'] ? $default_values['ampm'] : 'am';
  }

  // Generate the choices for drop-down selects.
  $hours[''] = t('hour');
  $minutes[''] = t('minute');
  for ($i = $first_hour; $i <= $last_hour; $i++) $hours[$i] = $i;
  for ($i = 0; $i <= 59; $i++) $minutes[$i] = $i < 10 ? "0$i" : $i;
  $ampms = array('am' => t('am'), 'pm' => t('pm'));

  $element['hour'] = array(
    '#prefix' => '',
    '#type' => 'select',
    '#default_value' => $default_values['hour'],
    '#options' => $hours,
  );
  $element['minute'] = array(
    '#prefix' => ':',
    '#type' => 'select',
    '#default_value' => $default_values['minute'],
    '#options' => $minutes,
  );
  if ($component['extra']['hourformat'] == '12-hour') {
    $element['ampm'] = array(
      '#type' => 'radios',
      '#default_value' => $default_values['ampm'],
      '#options' => $ampms,
    );
  }

  // Set the overall default value.
  if ($default_values['hour'] !== '') {
    $element['#default_value'] = webform_date_string($default_values);
  }

  return $element;
}

/**
 * Form API #after_build function for Webform time fields.
 *
 * Note that a #process function will not work on time fields, since they are
 * not actual FAPI elements. We use this function to set the proper default
 * values for the time fields.
 */
function webform_expand_time($element) {
  if (array_key_exists('#default_value', $element)) {
    $time_value = webform_date_array($element['#default_value'], 'time');

    foreach ($time_value as $key => $value) {
      $element[$key]['#value'] = $value;
    }
  }

  return $element;
}

/**
 * Theme a webform time element.
 */
function theme_webform_time($element) {
  // Add error classes to all items within the element.
  if (form_get_error($element)) {
    $element['hour']['#attributes']['class'] = 'error';
    $element['minute']['#attributes']['class'] = 'error';
  }

  $output = '<div class="webform-container-inline">' . drupal_render($element['hour']) . drupal_render($element['minute']) . drupal_render($element['ampm']) . '</div>';

  $element['#type'] = 'element';
  return theme('form_element', $element, $output);
}

function webform_validate_time($element, $form_state) {
  $form_key = $element['#webform_component']['form_key'];
  $name = $element['#webform_component']['name'];

  // Check if the user filled the required fields.
  foreach ($element['#hourformat'] == '12-hour' ? array('hour', 'minute', 'ampm') : array('hour', 'minute') as $field_type) {
    if ($element[$field_type]['#value'] == '' && $element['#required']) {
      form_error($element, t('%field field is required.', array('%field' => $name)));
      return;
    }
  }

  // Check for a valid time.
  if ($element['hour']['#value'] !== '' || $element['minute']['#value'] !== '') {
    if (!is_numeric($element['hour']['#value']) || !is_numeric($element['minute']['#value']) || (isset($element['ampm']) && $element['ampm']['#value'] === '')) {
      form_error($element, t('Entered %name is not a valid time.', array('%name' => $name)));
      return;
    }
  }
}

/**
 * Implementation of _webform_submit_component().
 */
function _webform_submit_time($component, $value) {
  // Convert to 24-hour time before string conversion.
  if ($component['extra']['hourformat'] == '12-hour') {
    $value = webform_time_convert($value, '24-hour');
  }

  // Convert the value into a ISO 8601 string.
  return $value['hour'] !== '' ? webform_date_string($value, 'time') : '';
}

/**
 * Implementation of _webform_display_component().
 */
function _webform_display_time($component, $value, $format = 'html') {
  $value = webform_date_array(isset($value[0]) ? $value[0] : '', 'time');
  if ($component['extra']['hourformat'] == '12-hour') {
    $value = webform_time_convert($value, '12-hour');
  }

  return array(
    '#title' => $component['name'],
    '#weight' => $component['weight'],
    '#theme' => 'webform_display_time',
    '#theme_wrappers' => $format == 'html' ? array('webform_element', 'webform_element_wrapper') : array('webform_element_text'),
    '#post_render' => array('webform_element_wrapper'),
    '#format' => $format,
    '#hourformat' => $component['extra']['hourformat'],
    '#value' => $value,
    '#pre_render' => array('webform_element_title_display'),
    '#webform_component' => $component,
  );
}

/**
 * Format the output of data for this component.
 */
function theme_webform_display_time($element) {
  $output = ' ';
  if (isset($element['#value']['hour']) && $element['#value']['hour'] !== '' && isset($element['#value']['minute']) && $element['#value']['minute'] !== '') {
    if ($element['#hourformat'] == '24-hour') {
      $output = sprintf('%02d', $element['#value']['hour']) . ':' . sprintf('%02d', $element['#value']['minute']);
    }
    else {
      $output = $element['#value']['hour'] . ':' . sprintf('%02d', $element['#value']['minute']) . ' ' . $element['#value']['ampm'];
    }
  }
  return $output;
}

/**
 * Implementation of _webform_analysis_component().
 */
function _webform_analysis_time($component, $sids = array()) {
  $placeholders = count($sids) ? array_fill(0, count($sids), "'%s'") : array();
  $sidfilter = count($sids) ? " AND sid in (" . implode(",", $placeholders) . ")" : "";
  $query = 'SELECT no,data ' .
    ' FROM {webform_submitted_data} ' .
    ' WHERE nid = %d ' .
    ' AND  cid = %d ' . $sidfilter .
    ' ORDER BY sid ASC ';

  $result = db_query($query, array_merge(array($component['nid'], $component['cid']), $sids));

  $times = array();
  $submissions = 0;
  while ($row = db_fetch_array($result)) {
    $submissions++;
    if ($row['data']) {
      $times[] = webform_date_array($row['data']);
    }
  }

  // Display stats.
  $nonblanks = count($times);
  $rows[0] = array(t('Left Blank'), ($submissions - $nonblanks));
  $rows[1] = array(t('User entered value'), $nonblanks);
  return $rows;
}

/**
 * Implementation of _webform_table_component().
 */
function _webform_table_time($component, $value) {
  if ($value[0]) {
    $time = webform_date_array($value[0], 'time');
    if ($component['extra']['hourformat'] == '24-hour') {
      return sprintf('%02d', $time['hour']) . ':' . sprintf('%02d', $time['minute']);
    }
    else {
      $time = webform_time_convert($time, '12-hour');
      return $time['hour'] . ':' . sprintf('%02d', $time['minute']) . ' ' . $time['ampm'];
    }
  }
  else {
    return '';
  }
}

/**
 * Implementation of _webform_csv_headers_component().
 */
function _webform_csv_headers_time($component, $export_options) {
  $header = array();
  $header[0] = '';
  $header[1] = '';
  $header[2] = $component['name'];
  return $header;
}

/**
 * Implementation of _webform_csv_data_component().
 */
function _webform_csv_data_time($component, $export_options, $value) {
  if ($value[0]) {
    $time = webform_date_array($value[0], 'time');
    if ($component['extra']['hourformat'] == '24-hour') {
      return sprintf('%02d', $time['hour']) . ':' . sprintf('%02d', $time['minute']);
    }
    else {
      $time = webform_time_convert($time, '12-hour');
      return $time['hour'] . ':' . sprintf('%02d', $time['minute']) . ' ' . $time['ampm'];
    }
  }
  else {
    return '';
  }
}

/**
 * Convert a time between a 24-hour and a 12-hour value.
 *
 * @param $array
 *   An array of hour, minute, second, and optionally ampm.
 * @param $format
 *   Either 12-hour or 24-hour.
 * @return
 *   An array with hour, minute, second, and ampm (if using "12-hour").
 */
function webform_time_convert($array, $format) {
  if ($array['hour'] !== '') {
    if ($format == '12-hour') {
      $array['ampm'] = ($array['hour'] >= 12 && $array['hour'] < 24) ? 'pm' : 'am';
      $array['hour'] = ($array['hour'] > 12 || $array['hour'] == 0) ? abs($array['hour'] - 12) : (int) $array['hour'];
    }
    elseif ($format == '24-hour' && isset($array['ampm'])) {
      $array['hour'] = ($array['hour'] < 12 && $array['ampm'] == 'pm') ? $array['hour'] + 12 : (int) $array['hour'];
    }
  }

  if ($format == '12-hour' && !isset($array['ampm'])) {
    $array['ampm'] = '';
  }
  elseif ($format == '24-hour' && isset($array['ampm'])) {
    unset($array['ampm']);
  }

  return $array;
}

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