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user_badges.module in User Badges 7.2

@brief User Badges module file

This file contains all the hook implementations and commonly used functions

@author Jeff Robbins (jjeff), http://drupal.org/user/17190 @author Chad Phillips (hunmonk), http://drupal.org/user/22079 @author Heine Deelstra (Heine), http://drupal.org/user/17943 @author Nuno Veloso (nunoveloso18), http://drupal.org/user/80656 @author Richard Skinner (Likeless), http://drupal.org/user/310635 @author Nancy Wichmann (NancyDru), http://drupal.org/user/101412

File

user_badges.module
View source
<?php

/**
 * @file
 * @brief User Badges module file
 *
 * This file contains all the hook implementations and commonly used functions
 *
 * @author Jeff Robbins (jjeff), http://drupal.org/user/17190
 * @author Chad Phillips (hunmonk), http://drupal.org/user/22079
 * @author Heine Deelstra (Heine), http://drupal.org/user/17943
 * @author Nuno Veloso (nunoveloso18), http://drupal.org/user/80656
 * @author Richard Skinner (Likeless), http://drupal.org/user/310635
 * @author Nancy Wichmann (NancyDru), http://drupal.org/user/101412
 */

/**
 * Constants.
 */
define('USER_BADGES_ADMIN_PATH', 'admin/config/people/user_badges');
define('USER_BADGES_ARG_POSITION', 5);

/**
 * Implements hook_init().
 * Include code that is only needed if other modules are present.
 */
function user_badges_init() {

  // Add any other module that can initiate actions.
  if (module_exists('trigger') || module_exists('rules')) {
    module_load_include('inc', 'user_badges', 'user_badges.actions');
  }
  if (module_exists('autoassignrole')) {
    module_load_include('inc', 'user_badges', 'user_badges.autoassignrole');
  }
}

/**
 * Implements hook_help().
 */
function user_badges_help($path, $arg) {
  global $user;
  switch ($path) {
    case 'admin/modules#description':
    case USER_BADGES_ADMIN_PATH:
      return t('User badges are iconic images which can be assigned to users. They can represent accomplishments, status, or anything you\'d like. These badges will show up in the user\'s profile, and could also be used by a theme to appear with user postings on forums, comments, or nodes. Badges can be assigned manually by an administrator by visiting a user\'s profile. They also can be assigned automatically by role or ecommerce purchase (if ecommerce modules are installed). The excellent !link module can also be used to automatically set and unset badges on a wide variety of conditions.', array(
        '!link' => l('Rules', 'http://drupal.org/project/rules', array(
          'absolute' => TRUE,
        )),
      ));
    case 'admin/people/user_badges/roles':
      return t("Select the badge that you'd like to associate with each role.");
    case 'admin/people/user_badges/images':
      return t("This is the user badges image library. Note that this area is not functional if you have private download active. Here you can upload images to display as a user badge, but you can also enter image URLs directly in the badge form, so this area is optional. The images can be anything you like, but it is recommended that you maintain a uniform image size (or use image styling) for all of your badges. Keep in mind that a user may have many badges displayed so you'll probably want to keep them as small as possible.");
    case 'user/%/badges':
    case 'user/%/badges/list':
      $showone = variable_get('user_badges_showone', 0);
      if (variable_get('user_badges_userweight', 0) && ($user->uid == $arg[1] || user_access('change badge assignments'))) {

        // Help messages for users who can reorder.
        if ($showone) {
          return t("You can reorder badges here. Only the top !number badges will be shown publicly.", array(
            '!number' => $showone == 0 ? t('unlimited') : (int) $showone,
          ));
        }
        else {
          return t("You can reorder your badges here. Some badges may not appear on the list; these badges cannot be reordered.");
        }
      }
      else {

        // Either we don't support reordering, or this user lacks the permission to do it.
        //        return t("These are all the badges owned by this user.");
      }
  }
}

/**
 * Implements hook_permission().
 */
function user_badges_permission() {
  return array(
    'access user badges' => array(
      'title' => t('Access user badges'),
      'description' => t('Display user badges to the user.'),
    ),
    'manage badges' => array(
      'title' => t('Manage badges'),
      'description' => t('Access the User Badges administration pages.'),
    ),
    'change badge assignments' => array(
      'title' => t('Change badge assignments'),
      'description' => t('Access the "Badges" tab in user profiles.'),
    ),
    'change own badge assignments' => array(
      'title' => t('Change own badge assignments'),
      'description' => t('Access the "Badges" tab in their own user profile.'),
    ),
    'suppress badges in user profile' => array(
      'title' => t("Don't show badges in user profile"),
      'description' => t("Don't show badges when viewing a user profile."),
    ),
  );
}

/**
 * Implements hook_menu().
 */
function user_badges_menu() {
  $items = array();
  $items[USER_BADGES_ADMIN_PATH] = array(
    'title' => 'Badges',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'user_badges_badgelist_form',
    ),
    'access arguments' => array(
      'manage badges',
    ),
    'file' => 'user_badges.admin.inc',
  );
  $items[USER_BADGES_ADMIN_PATH . '/list'] = array(
    'title' => 'List',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'user_badges_badgelist_form',
    ),
    'access arguments' => array(
      'manage badges',
    ),
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'weight' => -10,
    'file' => 'user_badges.admin.inc',
  );
  $items[USER_BADGES_ADMIN_PATH . '/add'] = array(
    'title' => 'Add new badge',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'user_badges_edit_form',
    ),
    'access arguments' => array(
      'manage badges',
    ),
    'type' => MENU_LOCAL_ACTION,
    'file' => 'user_badges.admin.inc',
  );
  $items[USER_BADGES_ADMIN_PATH . '/images'] = array(
    'title' => 'Images',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'user_badges_images_form',
    ),
    'access arguments' => array(
      'manage badges',
    ),
    'type' => MENU_LOCAL_TASK,
    'file' => 'user_badges.admin.inc',
  );
  $items[USER_BADGES_ADMIN_PATH . '/roles'] = array(
    'title' => 'Roles',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'user_badges_roles_form',
    ),
    'access arguments' => array(
      'manage badges',
    ),
    'type' => MENU_LOCAL_TASK,
    'file' => 'user_badges.admin.inc',
  );
  $items[USER_BADGES_ADMIN_PATH . '/settings'] = array(
    'title' => 'Settings',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'user_badges_settings_form',
    ),
    'access arguments' => array(
      'manage badges',
    ),
    'type' => MENU_LOCAL_TASK,
    'file' => 'user_badges.admin.inc',
  );
  $items[USER_BADGES_ADMIN_PATH . '/edit/%user_badge'] = array(
    'title' => 'Edit badge',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'user_badges_edit_form',
      USER_BADGES_ARG_POSITION,
    ),
    'access arguments' => array(
      'manage badges',
    ),
    'type' => MENU_CALLBACK + MENU_VISIBLE_IN_BREADCRUMB,
    'file' => 'user_badges.admin.inc',
  );
  $items[USER_BADGES_ADMIN_PATH . '/delete/%user_badge'] = array(
    'title' => 'Delete badge',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'user_badges_delete_form',
      USER_BADGES_ARG_POSITION,
    ),
    'access arguments' => array(
      'manage badges',
    ),
    'type' => MENU_CALLBACK + MENU_VISIBLE_IN_BREADCRUMB,
    'file' => 'user_badges.admin.inc',
  );
  $items['user/%user/badges'] = array(
    'title' => 'Badges',
    'page callback' => 'user_badges_userweight_page',
    'page arguments' => array(
      1,
    ),
    'access arguments' => array(
      'change badge assignments',
    ),
    'type' => MENU_LOCAL_TASK,
    'weight' => 4,
  );
  $items['user/%user/badges/list'] = array(
    'title' => 'List',
    'page callback' => 'user_badges_userweight_page',
    'page arguments' => array(
      1,
    ),
    'access arguments' => array(
      'change badge assignments',
    ),
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'weight' => -10,
  );
  $items['user/%user/badges/whoelse'] = array(
    'title' => 'Who Else',
    'page callback' => 'user_badges_userweight_page',
    'page arguments' => array(
      1,
    ),
    'access arguments' => array(
      'change badge assignments',
    ),
    'type' => MENU_LOCAL_TASK,
    'weight' => 0,
  );
  $items['user/%user/badges/edit'] = array(
    'title' => 'Edit',
    'page callback' => 'user_badges_page',
    'page arguments' => array(
      1,
    ),
    'access arguments' => array(
      'change badge assignments',
    ),
    'type' => MENU_LOCAL_TASK,
    'weight' => 5,
  );

  // Menu item to allow a user to change their own badge assignments.
  $items['user/%user/edit/badges'] = array(
    'title' => 'Badges',
    'page callback' => 'user_badges_page',
    'page arguments' => array(
      1,
    ),
    'access arguments' => array(
      'change own badge assignments',
    ),
    'type' => MENU_LOCAL_TASK,
    'weight' => 5,
  );
  $items['user_badges/autocomplete'] = array(
    'title' => 'User Badges Badge Name Autocomplete',
    'page callback' => 'user_badges_badge_autocomplete',
    'access callback' => TRUE,
    'type' => MENU_CALLBACK,
  );
  return $items;
}

/**
 * Implements hook_user_load().
 *
 * Gets all badges for the user and the limited badges.
 */
function user_badges_user_load($users) {
  static $badges = array();
  foreach ($users as $uid => $account) {

    // Only handle authenticated users.
    if ($uid > 0) {

      // Have we loaded this user before?
      if (isset($badges[$uid])) {
        $users[$uid]->badges = $badges[$uid];
      }

      // Get all user badges for this user, regardless of
      // whether we filter the ones we show.
      // @TODO: Is this the right function to use? Certainly nolimit is wrong.
      // @TODO: This also doesn't get role badges.
      $badges_all = user_badges_get_badges($uid, array(
        'nolimit' => TRUE,
      ));
      $users[$uid]->badges_all = $badges_all;
      $users[$uid]->badges_count = count($badges_all);
      $badges[$uid] = array();

      // Display the badge if there's no limit
      // or if the badge is unhideable
      // or if we are within our limit.
      if ($limit = variable_get('user_badges_showone', 0)) {

        // Loop through all potential badges and get the ones we can show.
        foreach ($badges_all as $bid => $badge) {
          $badge->class = "badge  badge-{$bid} " . drupal_html_class($badge->name);
          if ($limit > 0 || $badge->unhideable == 1) {
            $badges[$uid][$bid] = $badge;

            // Count down our limit, unless the badge doesn't count towards it.
            if (!$badge->doesnotcounttolimit) {
              $limit--;
            }
          }
        }
        $users[$uid]->badges = $badges[$uid];
      }
      else {
        $users[$uid]->badges = $badges_all;
      }
    }
  }
}

/**
 * Implements hook_user_view().
 */
function user_badges_user_view($account, $view_mode) {

  // Check if the user's badges are to be shown.
  if ($account->uid > 1 && user_access('suppress badges in user profile', $account)) {
    return;
  }

  // @TODO: Show role badges separately?
  $account->content['user_badges'] = array(
    '#title' => t('Badges'),
    '#type' => 'user_profile_category',
    '#attributes' => array(
      'class' => array(
        'badges',
      ),
    ),
  );
  if (isset($account->badges) && count($account->badges)) {
    $badgeimgs = array();
    foreach ($account->badges as $badge) {
      $badgeimgs[] = theme('user_badge', array(
        'badge' => $badge,
        'account' => $account,
      ));
    }
    $account->content['user_badges']['badges'] = array(
      '#type' => 'user_profile_item',
      '#title' => '',
      '#markup' => theme('user_badge_group', array(
        'badgeimages' => $badgeimgs,
      )),
      '#attributes' => array(
        'class' => array(
          'badges',
        ),
      ),
    );
  }
  else {

    // They don't have any badges, so show the "no badges" message.
    $account->content['user_badges']['badges'] = array(
      '#type' => 'user_profile_item',
      '#title' => '',
      '#markup' => variable_get('user_badges_nobadges', ''),
      '#attributes' => array(
        'class' => array(
          'badges',
        ),
      ),
    );
  }
}

/**
 * Implements hook_theme().
 */
function user_badges_theme() {
  return array(
    'user_badge' => array(
      'variables' => array(
        'badge' => NULL,
        'account' => NULL,
      ),
    ),
    'user_badge_group' => array(
      'variables' => array(
        'badgeimages' => array(),
      ),
    ),
    'user_badges_userweight_form' => array(
      'render element' => 'form',
    ),
    'user_badges_badgelist_form' => array(
      'render element' => 'form',
    ),
  );
}

/**
 * Form for users to weight their own badges.
 */
function user_badges_userweight_form($form, $form_state, $account) {
  $allbadges = $account->badges_all;

  // Header row for the badge reweighting list.
  $form['header'] = array(
    '#type' => 'value',
    '#value' => array(
      array(
        'data' => t('Name'),
      ),
      array(
        'data' => t('Badge'),
      ),
      array(
        'data' => t('Weight'),
      ),
    ),
  );

  // We need to know what the weight delta will be, which depends on the number
  // of badges we will list.
  $delta = 1;
  foreach ($allbadges as $badge) {
    if (!$badge->fixedweight) {
      $delta++;
    }
  }

  // Build a table listing the appropriate badges.
  $vars = array(
    'account' => $account,
  );
  foreach ($allbadges as $badge) {

    // We cannot include fixed weight badges.
    if ($badge->fixedweight) {
      continue;
    }

    // Set the badge default weight.
    $weight = $badge->weight;
    if (isset($badge->userweight)) {
      $weight = $badge->userweight;
    }
    $form['name'][$badge->bid] = array(
      '#markup' => check_plain($badge->name),
    );
    $vars['badge'] = $badge;
    $form['badge'][$badge->bid] = array(
      '#markup' => theme('user_badge', $vars),
    );
    $form['weight'][$badge->bid] = array(
      '#type' => 'weight',
      '#default_value' => $weight,
      '#delta' => $delta,
      '#tree' => TRUE,
      '#attributes' => array(
        'class' => array(
          'user_badges_userweight_element',
        ),
      ),
    );
  }
  $form['uid'] = array(
    '#type' => 'value',
    '#value' => $account->uid,
  );
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Save configuration'),
  );
  return $form;
}

/**
 * Process user_badges_userweight_form form submissions.
 *
 * Update the badge userweights
 */
function user_badges_userweight_form_submit($form, &$form_state) {
  if (isset($form['weight']) && is_array($form['weight'])) {
    foreach (element_children($form['weight']) as $bid) {

      // TODO Please review the conversion of this statement to the D7 database API syntax.

      /* db_query("UPDATE {user_badges_user} SET userweight = %d WHERE bid = %d AND uid = %d", $form_state['values'][$bid], $bid, $form_state['values']['uid']) */
      db_update('user_badges_user')
        ->fields(array(
        'userweight' => $form_state['values'][$bid],
      ))
        ->condition('bid', $bid)
        ->condition('uid', $form_state['values']['uid'])
        ->execute();
    }
    drupal_set_message(t('Your badge order has been updated.'));
  }
}

/**
 * Form theming function
 */
function theme_user_badges_userweight_form($variables) {
  $form = $variables['form'];
  $output = '';

  // Loop through the array items in the name array to get all the bids for our listed badges.
  if (isset($form['name']) && is_array($form['name'])) {
    foreach (element_children($form['name']) as $key) {

      //We only want bids as values of $key
      if (!is_numeric($key)) {
        continue;
      }

      // Create the rows array for the table theme.
      $row = array();
      $row[] = drupal_render($form['name'][$key]);
      $row[] = drupal_render($form['badge'][$key]);
      $row[] = drupal_render($form['weight'][$key]);

      //Add the draggable class to this row
      $rows[] = array(
        'data' => $row,
        'class' => array(
          'draggable',
        ),
        '#weight' => $form['weight'][$key]['#value'],
      );
    }

    // Sort the rows by their weights.
    usort($rows, 'element_sort');

    // Add the submit button.
    $row = array();
    $row[] = '';
    $row[] = drupal_render($form['submit']);
    $row[] = '';
    $rows[] = $row;
  }
  else {
    $rows[] = array(
      array(
        'data' => t('No badges available.'),
        'colspan' => '3',
      ),
    );
  }

  // This makes the table draggable.
  drupal_add_tabledrag('user_badges_userweight', 'order', 'sibling', 'user_badges_userweight_element');

  // Theme all that we have processed so far into a table.
  $output .= theme('table', array(
    'header' => $form['header']['#value'],
    'rows' => $rows,
    'attributes' => array(
      'id' => 'user_badges_userweight',
    ),
  ));

  // Render any remaining form elements.
  $output .= drupal_render_children($form);
  return $output;
}

/**
 * Menu callback; Retrieve a JSON object containing autocomplete suggestions for badges
 */
function user_badges_badge_autocomplete($string = '') {
  $matches = array();
  if (preg_match('/^[^(]+/', $string, $searchstring)) {
    $trimstring = trim($searchstring[0]);
    $result = db_select('user_badges_badges', 'ubb')
      ->fields('ubb')
      ->condition('name', '%' . db_like($trimstring) . '%', 'LIKE')
      ->orderBy('weight')
      ->orderBy('name')
      ->extend('PagerDefault')
      ->limit(5)
      ->execute();
    foreach ($result as $badge) {
      $matches[$badge->name . ' (' . t('Badge ID') . ' ' . $badge->bid . ')'] = check_plain($badge->name) . ' ' . theme('user_badge', array(
        'badge' => $badge,
      ));
    }
  }
  drupal_json_output($matches);
}

/**
 * Validates submissions for textfields that use user_badges_badge_autocomplete strings
 *
 * @param $value
 *   The textfield value
 *
 * @return array($bid,$result)
 * $bid
 *   the bid detected in the string (integer)
 *   for an invalid string, this will be NULL
 * $result
 *   'valid' for a valid string with a real bid
 *   'string' for an incorrectly formatted string
 *   'nobid' for a correctly formatted string with an invalid badge ID
 */
function user_badges_badge_autocomplete_validation($value) {
  if (preg_match('/\\(' . t('Badge ID') . ' (\\d+)\\)/', $value, $matches)) {

    //The format was correct, but we need to check the bid exists
    $bid = $matches[1];
    $records = db_select('user_badges_badges', 'ubb')
      ->fields('ubb')
      ->condition('ubb.bid', $bid)
      ->execute();
    if ($records
      ->rowCount() > 0) {

      //Result found
      return array(
        $bid,
        'valid',
      );
    }
    else {

      //No result found, return the error code
      return array(
        $bid,
        'nobid',
      );
    }
  }
  else {

    //Pattern does not match, return the error code
    return array(
      NULL,
      'string',
    );
  }
}

/**
 * Define the page on user/uid/badges/edit
 * and user/%user/edit/badges.
 *
 * Note: menu system passes user/% as integer,
 * but user/%user as an object (with badges).
 */
function user_badges_page($account) {
  drupal_set_title(t('Edit badges for %user_name', array(
    '%user_name' => $account->name,
  )), PASS_THROUGH);
  return drupal_get_form('user_badges_change_form', $account);
}

/**
 * Define the page on user/uid/badges.
 */
function user_badges_userweight_page($account) {
  global $user;
  drupal_set_title(t('Badges for %user_name', array(
    '%user_name' => format_username($account),
  )), PASS_THROUGH);

  // Do we have the right to rearrange badges?
  if (variable_get('user_badges_userweight', 0) && ($account->uid == $user->uid || user_access('change badge assignments'))) {

    // If the setting allows it and we are the badge owner or somebody with permission, yes.
    return drupal_get_form('user_badges_userweight_form', $account);
  }
  else {
    $whoelse = arg(3) == 'whoelse';

    // Otherwise, just list the badges on the page.
    $user_badges = user_badges_get_badges($account->uid, array(
      'nolimit' => TRUE,
    ));
    $badges = array();
    foreach ($user_badges as $badge) {
      $item = array(
        theme('user_badge', array(
          'badge' => $badge,
          'account' => $account,
        )),
        array(
          'data' => check_plain($badge->name),
          'class' => 'user-badge-name',
        ),
      );
      if ($whoelse) {
        $query = db_select('user_badges_user', 'ubu')
          ->condition('ubu.bid', $badge->bid, '=')
          ->condition('ubu.uid', $account->uid, '<>');
        $u = $query
          ->join('users', 'u', 'u.uid=ubu.uid');
        $query
          ->fields($u);
        $result = $query
          ->execute();
        $accts = array();
        foreach ($result as $acct) {

          // This allows other username functions to intercede.
          $accts[] = format_username($acct);
        }
        if (!$accts) {
          $accts[] = t('None');
        }
        $item[] = array(
          'data' => theme('item_list', array(
            'items' => $accts,
          )),
          'class' => 'user-badges-whoelse',
        );
      }
      $badges[] = $item;
    }
    if ($badges) {
      $badges = array(
        theme('table', array(
          'rows' => $badges,
          'attributes' => array(
            'style' => 'width: auto;',
          ),
        )),
      );
      return theme('user_badge_group', array(
        'badgeimages' => $badges,
      ));
    }
    else {
      return t('This user is not currently assigned any badges.');
    }
  }
}

/**
 * Form to change badges of a user
 */
function user_badges_change_form($form, &$form_state, $account) {
  $form = array();
  $form['uid'] = array(
    '#type' => 'value',
    '#value' => $account->uid,
  );
  $form['add'] = array(
    '#type' => 'fieldset',
    '#title' => t('Add Badges'),
    '#weight' => 3,
    '#collapsible' => TRUE,
    '#collapsed' => FALSE,
  );
  for ($i = 1; $i <= 5; $i++) {
    $form['add']['add' . $i] = array(
      '#type' => 'textfield',
      '#title' => t('New Badge @number', array(
        '@number' => $i,
      )),
      '#size' => 40,
      '#maxlength' => 255,
      '#autocomplete_path' => 'user_badges/autocomplete',
    );
  }
  if (isset($account->badges_all) && count($account->badges_all)) {
    $form['remove'] = array(
      '#type' => 'fieldset',
      '#title' => t('Remove Badges'),
      '#weight' => 5,
      '#collapsible' => TRUE,
      '#collapsed' => FALSE,
    );
    foreach ($account->badges_all as $badge) {
      $form['remove'][$badge->bid] = array(
        '#type' => 'checkbox',
        '#title' => theme('user_badge', array(
          'badge' => $badge,
          'account' => $account,
        )),
        '#return_value' => 1,
        '#default_value' => 0,
        '#description' => check_plain($badge->name),
      );
    }
  }
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Update Badges'),
    '#weight' => 10,
  );
  return $form;
}

/**
 * Validate user_badges_remove_form form submissions.
 */
function user_badges_change_form_validate($form, &$form_state) {
  for ($i = 1; $i <= 5; $i++) {
    if (!empty($form_state['values']['add' . $i])) {
      $validation = user_badges_badge_autocomplete_validation($form_state['values']['add' . $i]);
      switch ($validation[1]) {
        case 'nobid':
          form_set_error('add' . $i, t('@value is not a valid badge ID. Try using the autocomplete function (requires javascript).', array(
            '@value' => $validation[0],
          )));
          break;
        case 'string':
          form_set_error('add' . $i, t('"@value" is not a valid badge. Try using the autocomplete function (requires javascript).', array(
            '@value' => $form_state['values']['add' . $i],
          )));
          break;
      }
    }
  }
}

/**
 * Process user_badges_change_form form submissions.
 *
 * Add the named badge. Remove the checked badges.
 */
function user_badges_change_form_submit($form, &$form_state) {
  $uid = $form_state['values']['uid'];

  //Add badges for non-empty fields
  for ($i = 1; $i <= 5; $i++) {
    if (!empty($form_state['values']['add' . $i])) {
      $validation = user_badges_badge_autocomplete_validation($form_state['values']['add' . $i]);
      user_badges_user_add_badge($uid, $validation[0], 'user');
    }
  }

  //Remove any checked badges
  $badges_to_go = array();
  foreach ($form_state['values'] as $bid => $value) {
    if (is_numeric($bid) && $value == 1) {
      $badges_to_go[] = $bid;
    }
  }
  if (count($badges_to_go)) {
    foreach ($badges_to_go as $bid) {
      user_badges_user_remove_badge($uid, $bid);
    }
    drupal_set_message(format_plural(count($badges_to_go), '1 badge removed.', '@count badges removed.'));
  }
  if (arg(2) == 'edit') {
    $form_state['redirect'] = "user/{$uid}";

    // My account.
  }
  else {
    $form_state['redirect'] = "user/{$uid}/badges";

    // Full admin UI.
  }
}

/**
 * Assign user badges to a user
 *
 * @param $edit is an array containing badges array
 * @param $uid is the user id
 * @param $quiet suppresses message display
 */
function user_badges_user_save($edit, $uid, $quiet = TRUE) {
  $badges = user_badges_get_badges($uid);
  if (is_array($edit)) {

    // An array of just the checked boxes please.
    $newbadges = array();
    foreach ($edit as $bid => $is_selected) {
      if ($is_selected) {
        $newbadges[] = $bid;
      }
    }
    $success = TRUE;

    // What are the added badges?
    $added = array_diff($newbadges, array_keys($badges));
    foreach ($added as $bid) {
      if (!key_exists($bid, $badges)) {
        $success = (bool) user_badges_user_add_badge($uid, $bid);
      }
    }

    // what are the removed badges?
    $removed = array_diff(array_keys($badges), $newbadges);
    foreach ($removed as $bid) {

      // and user has this badge
      if (key_exists($bid, $badges)) {
        $success = $success && (bool) user_badges_user_remove_badge($uid, $bid);
      }
    }
    if ($success && !$quiet) {
      drupal_set_message(t('Badges saved.'));
    }
    elseif (!$quiet) {
      drupal_set_message(t('There was a problem saving badges to the database.'), 'error');
    }
  }
}

/**
 * Add a badge to user.
 *
 * @param $uid User ID.
 * @param $bid Badge ID.
 * @param $type Whether set as part of the role, or individually assigned ('user', 'role').
 *
 * @return bool with query success
 */
function user_badges_user_add_badge($uid, $bid, $type = NULL) {
  user_badges_user_remove_badge($uid, $bid, $type);

  // TODO Please review the conversion of this statement to the D7 database API syntax.

  /* db_query('INSERT INTO {user_badges_user} (uid, bid, type) VALUES (%d, %d, \'%s\')', $uid, $bid, $type) */
  return $id = db_insert('user_badges_user')
    ->fields(array(
    'uid' => $uid,
    'bid' => $bid,
    'type' => $type,
  ))
    ->execute();
}

/**
 * remove a badge from user.
 *
 * @param $uid User ID.
 * @param $bid Badge ID.
 * @param $type Whether set as part of the role, or individually assigned ('user', 'role').
 *
 * @return bool with query success
 */
function user_badges_user_remove_badge($uid, $bid, $type = NULL) {
  if (is_null($type)) {
    return db_delete('user_badges_user')
      ->condition('uid', $uid)
      ->condition('bid', $bid)
      ->execute();
  }
  else {
    return db_delete('user_badges_user')
      ->condition('uid', $uid)
      ->condition('bid', $bid)
      ->condition('type', $type)
      ->execute();
  }
}

/**
 * Return array of user badges where keys are badge ids (bid)
 *   and values are object containing badge info.
 * @param $uid
 *   if $uid is a user id, returns badges for that user.
 *   if $uid is 'all', returns all badges.
 *   if $uid is 'select', returns badges for form_select options.
 * @param $options array of options.
 *   $options['nolimit'] : if TRUE, the limit clause will not be applied for a user
 *   returned values for 'select' are just badge names.
 */
function user_badges_get_badges($uid, $options = array()) {
  static $badges = array(), $past_uid, $past_options;
  $defaults = array(
    'nolimit' => FALSE,
  );
  $options = array_merge($defaults, $options);
  if (isset($badges[$uid])) {
    return $badges[$uid];
  }

  // Do this so we don't return NULL.
  $badges[$uid] = array();
  if (empty($past_uid) || $past_uid !== $uid || $past_options !== $options) {
    $past_uid = $uid;
    if ($uid == 'all' || $uid == 'select') {
      $sql = db_query('SELECT b.bid, b.weight, b.name, b.image, b.href,
        b.unhideable, b.fixedweight, b.doesnotcounttolimit, b.tid
        FROM {user_badges_badges} b
        ORDER BY b.weight, b.name');
    }
    else {
      $usr = db_query('SELECT COUNT(uid) FROM {users} WHERE uid = :uid AND status = :status', array(
        ':uid' => $uid,
        ':status' => 0,
      ))
        ->fetchField();
      if ($usr && variable_get('user_badges_showblocked', 0)) {
        $sql = db_query('SELECT DISTINCT b.bid, b.weight, b.name, b.image, b.href,
          b.unhideable, b.fixedweight, b.doesnotcounttolimit, u.userweight, b.tid,
          CASE WHEN b.fixedweight = 1 THEN b.weight ELSE COALESCE(u.userweight,b.weight) END coalescedweight
          FROM {user_badges_badges} b
            INNER JOIN {user_badges_user} u ON b.bid = u.bid
            INNER JOIN {user_badges_roles} r ON b.bid = r.bid
          WHERE u.uid = :uid AND r.rid = :rid
          ORDER BY coalescedweight, b.name', array(
          ':uid' => $uid,
          ':rid' => 0,
        ));
      }
      else {
        $sql = db_query('SELECT DISTINCT b.bid, b.weight, b.name, b.image, b.href,
          b.unhideable, b.fixedweight, b.doesnotcounttolimit, u.userweight, b.tid,
          CASE WHEN b.fixedweight = 1 THEN b.weight ELSE COALESCE(u.userweight,b.weight) END coalescedweight
          FROM {user_badges_badges} b
            INNER JOIN {user_badges_user} u ON b.bid = u.bid
          WHERE u.uid = :uid
          ORDER BY coalescedweight, b.name
          ', array(
          ':uid' => $uid,
        ));
      }
    }

    // Should we limit the badges returned?
    if (!$options['nolimit'] && variable_get('user_badges_showone', 0)) {
      $limit = variable_get('user_badges_showone', 1);
    }
    else {

      // Set to -1 for no limit.
      $limit = -1;
    }
    foreach ($sql as $badge) {

      // Display the badge if there's no limit or if the badge is unhideable or if we are within our limit.
      if ($limit != 0 || $badge->unhideable == 1) {
        if ($uid == 'select') {
          $badges[$uid][$badge->bid] = $badge->name;
          $badges[$badge->bid]['#attributes'] = array(
            'class' => array(
              "badge badge-{$badge->bid} " . drupal_html_class($badge->name),
            ),
          );
        }
        else {
          $badges[$uid][$badge->bid] = $badge;
          $badges[$uid][$badge->bid]->class = "badge badge-{$badge->bid} " . drupal_html_class($badge->name);
        }

        //Count down our limit, unless the badge doesn't count towards it
        if (!$badge->doesnotcounttolimit) {
          $limit--;
        }
      }
    }
  }
  return $badges[$uid];
}

/**
 * Load a badge object from database.
 */
function user_badge_load($bid) {
  return db_select('user_badges_badges', 'ubb')
    ->condition('bid', $bid)
    ->fields('ubb')
    ->execute()
    ->fetchObject();
}

/**
 * Returns an array where keys are role ids (rid) and values are the
 * badge ids (bid) associated with that role
 * These values are assigned on admin/people/user_badges/roles
 *
 * @param $rid - if set, return only values for this role
 *
 * @param $options - array of options
 * $options['returnbadges'] - if TRUE, return badge objects, not just bids
 *
 * @return a list of roles pt the whole badge object.
 */
function user_badges_get_roles($rid = NULL, $options = array()) {
  $roles = array();
  $options = array_merge(array(
    'returnbadges' => FALSE,
  ), $options);
  $query = db_select('user_badges_roles', 'ubr');
  $query
    ->join('user_badges_badges', 'ubb', 'ubb.bid = ubr.bid');
  $query
    ->fields('ubr', array(
    'rid',
  ))
    ->fields('ubb');
  if ($rid) {
    $query
      ->condition('ubr.rid', $rid);
  }
  $records = $query
    ->execute();
  foreach ($records as $row) {
    if ($options['returnbadges']) {
      $roles[$row->rid] = $row;
    }
    else {
      $roles[$row->rid] = $row->bid;
    }
  }
  return $roles;
}

/**
 * Save information about roles for user_badges (in settings)
 *
 * @param $roles
 *   An array in the format rid => bid for each role/badge relationship.
 */
function user_badges_save_roles($roles) {
  if (is_array($roles)) {

    // We have to clear out all badges first.
    $success = TRUE;
    db_query('DELETE FROM {user_badges_roles}');
    db_query("DELETE FROM {user_badges_user} WHERE type='role'");

    // Now we loop through the roles and their badges, and assign them to
    // each user accordingly.
    foreach ($roles as $rid => $bid) {
      if ($bid) {

        // First of all, insert all the role and badge relationship
        // into user_badges_roles.
        $success = $success && db_query("INSERT INTO {user_badges_roles} (rid, bid) VALUES (:rid, :bid)", array(
          ':rid' => $rid,
          ':bid' => $bid,
        ));

        // For all of these queries, we LEFT JOIN user_badges_user to check
        // whether there are existing entries for that badge for that user
        // of the "role" type. Otherwise, we get database errors when
        // multiple roles assign the same badge.
        // The blocked user "role" (represented as rid 0) has no entry in
        // the users_role table, so it needs its own special query.
        if ($rid == 0) {
          $success = $success && db_query("\n            INSERT INTO {user_badges_user} (uid, bid, type)\n            SELECT u.uid, :bid, 'role'\n            FROM {users} u\n            LEFT JOIN {user_badges_user} ubu\n            ON ubu.uid=u.uid AND ubu.bid=:bid AND ubu.type='role'\n            WHERE status = 0 AND ubu.uid IS NULL\n          ", array(
            ':bid' => $bid,
          ));
        }
        elseif ($rid == 2) {
          $success = $success && db_query("\n            INSERT INTO {user_badges_user} (uid, bid, type)\n            SELECT u.uid, :bid, 'role'\n            FROM {users} u\n            LEFT JOIN {user_badges_user} ubu\n            ON ubu.uid=u.uid AND ubu.bid=:bid AND ubu.type='role'\n            WHERE u.uid > 0 AND ubu.uid IS NULL\n          ", array(
            ':bid' => $bid,
          ));
        }
        else {
          $success = $success && db_query("\n            INSERT INTO {user_badges_user} (uid, bid, type)\n            SELECT ur.uid, :bid, 'role'\n            FROM {users_roles} ur\n            LEFT JOIN {user_badges_user} ubu\n            ON ubu.uid=ur.uid AND ubu.bid=:bid AND ubu.type='role'\n            WHERE ur.rid=:rid AND ubu.uid IS NULL\n          ", array(
            ':bid' => $bid,
            ':rid' => $rid,
          ));
        }
      }
    }
    if ($success) {
      drupal_set_message(t('Roles saved.'));
    }
    else {
      drupal_set_message(t('There was a problem saving roles to the database'));
    }
  }
}

/**
 * Returns HTML representation of user badges for given uid
 * @param $uid the user id
 * @param $refresh (FALSE) when TRUE, refreshes the cache for $uid
 *
 * @return string html representation of userbadges
 */
function user_badges_for_uid($uid, $refresh = FALSE) {
  static $cache;
  if ($uid) {
    if (isset($cache[$uid]) && !$refresh) {
      return $cache[$uid];
    }
    else {

      // TODO: User can also have role badges.
      $user_badges = user_badges_get_badges($uid);
      $account = user_load($uid);
      foreach ($account->roles as $rid => $role_name) {
        $rb = user_badges_get_roles($rid, array(
          'returnbadges' => TRUE,
        ));
        foreach ($rb as $rid => $b) {
          $user_badges[$b->bid] = $b;
        }
      }
      foreach ($user_badges as $badge) {
        $badges[] = theme('user_badge', array(
          'badge' => $badge,
          'account' => $account,
        ));
      }
      $cache[$uid] = isset($badges) ? theme('user_badge_group', array(
        'badgeimages' => $badges,
      )) : '';
      return $cache[$uid];
    }
  }
}

/**
 * Get all user badges for a user.
 * @param $uid is user id.
 * @param $list - boolean to return an item_list (unordered).
 *
 * @return string containing HTML representation of user badges for given user.
 */
function user_badges_for_user($uid, $list = FALSE) {
  static $save = array(
    0 => FALSE,
  );
  if (isset($save[$uid])) {
    return $save[$uid];
  }
  $account = user_load($uid);
  $badges = array();
  foreach ($account->badges as $badge) {
    $badges[] = theme('user_badge', array(
      'badge' => $badge,
      'account' => $account,
    ));
  }
  if ($list) {
    $badges = array(
      theme('item_list', array(
        'items' => $badges,
      )),
    );
    $save[$uid] = $badges;
    return $badges;
  }
  if ($badges) {
    $save[$uid] = theme('user_badge_group', array(
      'badgeimages' => $badges,
    ));
  }
  else {

    // Do we have a "no badges" message?
    if ($nobadges = variable_get('user_badges_nobadges', '')) {
      $nobadges = array(
        '<div class="user_badges_no_badges">' . filter_xss_admin(t($nobadges)) . '</div>',
      );
      $save[$uid] = theme('user_badge_group', array(
        'badgeimages' => $nobadges,
      ));
    }
    else {
      $save[$uid] = FALSE;
    }
  }
  return $save[$uid];
}

/**
 * Return html representation of a group of badges
 * $badgeimages is an array of badge image tags from theme_user_badge()
 */
function theme_user_badge_group($variables) {
  $badgeimages = $variables['badgeimages'];
  if (!empty($badgeimages)) {
    return '<div class="user_badges">' . implode('', $badgeimages) . '</div>';
  }
}

/**
 * Helper function to produce badge image.
 */
function _user_badges_build_image($badge) {
  $style_name = variable_get('user_badges_imagecache', '');
  $alt = check_plain($badge->name);
  if (!isset($badge->class)) {
    $badge->class = "badge badge-{$badge->bid} badge-" . drupal_html_class($badge->name);
  }
  if (file_valid_uri($badge->image)) {
    $badge->image = file_create_url($badge->image);
  }
  $variables = array(
    'style_name' => $style_name,
    'path' => $badge->image,
    'alt' => $alt,
    'title' => $alt,
    'attributes' => array(
      'class' => array(
        $badge->class,
      ),
    ),
  );
  $theme = $style_name ? 'image_style' : 'image';
  $image = theme($theme, $variables);
  return $image;
}

/**
 * Return html representation of a badge image
 * (note: theme_image does the check_plaining)
 */
function theme_user_badge($variables) {
  $badge = $variables['badge'];
  $image = _user_badges_build_image($badge);

  // We don't link the badge if there is no link and no default,
  // or if the default is overridden.
  if ($badge->href == '' && !variable_get('user_badges_defaulthref', '') || drupal_strtolower($badge->href) == '<none>') {
    return $image;
  }
  else {
    $href = $badge->href ? $badge->href : variable_get('user_badges_defaulthref', '');

    // Implement token replacement.
    if (module_exists('token')) {

      //      $href = token_replace($href, array('userbadge' => $badge, 'user' => $account));
    }
    $pieces = parse_url($href);
    $pieces['html'] = TRUE;
    $pieces['path'] = isset($pieces['path']) ? $pieces['path'] : '';
    if (isset($pieces['scheme'])) {
      $pieces['path'] = $pieces['scheme'] . '://' . $pieces['host'] . $pieces['path'];
    }
    return l($image, $pieces['path'], $pieces);
  }
}

/**
 * Implements hook_views_api().
 */
function user_badges_views_api() {
  return array(
    'api' => 3,
    'path' => drupal_get_path('module', 'user_badges') . '/includes/views',
  );
}

/**
 * Implements hook_block_info().
 */
function user_badges_block_info() {
  return array(
    'current_node' => array(
      'info' => t('User_Badges: Content Author'),
      'cache' => DRUPAL_NO_CACHE,
    ),
    'my_badges' => array(
      'info' => t('User_Badges: My Badges'),
      'cache' => DRUPAL_CACHE_PER_USER,
    ),
    'all_badges' => array(
      'info' => t('User_Badges: All Badges'),
      'cache' => DRUPAL_CACHE_GLOBAL,
    ),
  );
}

/**
 * Implements hook_block_view().
 */
function user_badges_block_view($delta = 0) {
  $block = array();
  switch ($delta) {
    case 'current_node':
      $arg2 = arg(2);
      if (arg(0) == 'node' && is_numeric(arg(1)) && empty($arg2)) {
        $node = menu_get_object();

        // Make sure we actually got a node.
        if (!$node || !is_object($node)) {
          watchdog('user_badges', 'Block failed to get proper node, got: @type.', array(
            '@type' => gettype($node),
          ), WATCHDOG_WARNING);
          break;
        }
        if (in_array($node->type, variable_get('user_badges_current_node_types', array()))) {
          $account = user_load($node->uid);
          $result = isset($account->badges) ? $account->badges : array();
          $images = array();
          foreach ($result as $badge) {
            $images[] = theme('user_badge', array(
              'badge' => $badge,
            ));
          }
          $block['subject'] = t("@name's Badges", array(
            '@name' => $node->name,
          ));
          $block['content'] = theme('user_badge_group', array(
            'badgeimages' => $images,
          ));
        }
      }
      break;
    case 'my_badges':
      global $user;
      if (!isset($user->badges_all)) {
        $user = user_load($user->uid);
      }
      if (variable_get('user_badges_my_badges_limit', 1)) {
        $result = $user->badges;
      }
      else {
        $result = $user->badges_all;
      }
      $images = array();
      foreach ($result as $badge) {
        $images[] = theme('user_badge', array(
          'badge' => $badge,
        ));
      }
      $block['subject'] = t('My Badges');
      $block['content'] = theme('user_badge_group', array(
        'badgeimages' => $images,
      ));
      break;
    case 'all_badges':
      $result = db_select('user_badges_badges', 'ubb')
        ->fields('ubb')
        ->orderBy('ubb.weight', 'asc')
        ->orderBy('ubb.name', 'asc')
        ->execute();
      $items = array();
      foreach ($result as $badge) {
        $items[] = theme('user_badge', array(
          'badge' => $badge,
        )) . ' <span class="all-badges-name">' . check_plain($badge->name) . '</span>';
      }
      $block['content'] = theme('item_list', array(
        'items' => $items,
      ));
      break;
  }
  return $block;
}

/**
 * Implements hook_block_configure().
 */
function user_badges_block_configure($delta = 0) {
  $form = array();
  switch ($delta) {
    case 'current_node':
      $form['types'] = array(
        '#type' => 'checkboxes',
        '#title' => t('Show on these content types'),
        '#default_value' => variable_get('user_badges_current_node_types', array()),
        '#options' => node_type_get_names(),
        '#attributes' => array(
          'class' => array(
            'container-inline',
          ),
        ),
      );
      break;
    case 'my_badges':
      $showone = (int) variable_get('user_badges_showone', 0);
      $form['limit'] = array(
        '#type' => 'radios',
        '#title' => t('Apply admin limit on this block?'),
        '#default_value' => variable_get('user_badges_my_badges_limit', 1),
        '#options' => array(
          t('No'),
          t('Yes'),
        ),
        '#attributes' => array(
          'class' => array(
            'container-inline',
          ),
        ),
        '#description' => t('The current badge display limit is @limit.', array(
          '@limit' => $showone == 0 ? t('unlimited') : $showone,
        )),
      );
      break;
  }
  return $form;
}

/**
 * Implements hook_block_save().
 */
function user_badges_block_save($delta = 0, $edit = array()) {
  switch ($delta) {
    case 'current_node':
      variable_set('user_badges_current_node_types', array_filter($edit['types']));
      drupal_set_message(t('Configuration saved.'));
      return;
    case 'my_badges':
      variable_set('user_badges_my_badges_limit', $edit['limit']);
      drupal_set_message(t('Configuration saved.'));
      return;
  }
}

/**
 * Implements hook_field_extra_fields().
 */
function user_badges_field_extra_fields_alter(&$info) {
  foreach (node_type_get_types() as $node_type) {
    if (!isset($info['node'][$node_type->type]['form']['badges'])) {
      $info['node'][$node_type->type]['form']['badges'] = array(
        'label' => t('User Badges'),
        'description' => t('User badges display'),
        'weight' => 30,
      );
    }
  }
}

/**
 * Implements hook_preprocess_node().
 */
function user_badges_preprocess_node(&$variables, $hook) {
  if (user_access('access user badges')) {
    $uid = $variables['uid'];
    $account = user_load($uid);
    $variables['user_badges'] = user_badges_for_user($uid);
  }
}

Functions

Namesort descending Description
theme_user_badge Return html representation of a badge image (note: theme_image does the check_plaining)
theme_user_badges_userweight_form Form theming function
theme_user_badge_group Return html representation of a group of badges $badgeimages is an array of badge image tags from theme_user_badge()
user_badges_badge_autocomplete Menu callback; Retrieve a JSON object containing autocomplete suggestions for badges
user_badges_badge_autocomplete_validation Validates submissions for textfields that use user_badges_badge_autocomplete strings
user_badges_block_configure Implements hook_block_configure().
user_badges_block_info Implements hook_block_info().
user_badges_block_save Implements hook_block_save().
user_badges_block_view Implements hook_block_view().
user_badges_change_form Form to change badges of a user
user_badges_change_form_submit Process user_badges_change_form form submissions.
user_badges_change_form_validate Validate user_badges_remove_form form submissions.
user_badges_field_extra_fields_alter Implements hook_field_extra_fields().
user_badges_for_uid Returns HTML representation of user badges for given uid
user_badges_for_user Get all user badges for a user.
user_badges_get_badges Return array of user badges where keys are badge ids (bid) and values are object containing badge info.
user_badges_get_roles Returns an array where keys are role ids (rid) and values are the badge ids (bid) associated with that role These values are assigned on admin/people/user_badges/roles
user_badges_help Implements hook_help().
user_badges_init Implements hook_init(). Include code that is only needed if other modules are present.
user_badges_menu Implements hook_menu().
user_badges_page Define the page on user/uid/badges/edit and user/%user/edit/badges.
user_badges_permission Implements hook_permission().
user_badges_preprocess_node Implements hook_preprocess_node().
user_badges_save_roles Save information about roles for user_badges (in settings)
user_badges_theme Implements hook_theme().
user_badges_userweight_form Form for users to weight their own badges.
user_badges_userweight_form_submit Process user_badges_userweight_form form submissions.
user_badges_userweight_page Define the page on user/uid/badges.
user_badges_user_add_badge Add a badge to user.
user_badges_user_load Implements hook_user_load().
user_badges_user_remove_badge remove a badge from user.
user_badges_user_save Assign user badges to a user
user_badges_user_view Implements hook_user_view().
user_badges_views_api Implements hook_views_api().
user_badge_load Load a badge object from database.
_user_badges_build_image Helper function to produce badge image.

Constants