<?php
// $Id: members.module,v 1.38 2006/02/23 05:19:32 walkah Exp $

function members_help($section) {
  switch ($section) {
    case 'admin/modules#description':
      return t('Enables users to list all members.');
      break;
  }
}

function members_settings() {
  $form["members_roles"] = array(
    '#type' => 'select',
    '#title' => t("Roles to show"),
    '#default_value' => variable_get("members_roles", array()),
    '#options' => user_roles(1),
    '#description' => t("Select roles to show in the members listing."),
    '#extra' => 0,
    '#multiple' => 1,
  );
  $form["members_fields"] = array(
    '#type' => 'select',
    '#title' => t("Columns to show"),
    '#default_value' => variable_get("members_fields", _member_fields()),
    '#options' => _member_fields(),
    '#description' => t("Select the fields which should be displayed on your members overview page. Note that some fields require certain modules to be active."),
    '#extra' => 0,
    '#multiple' => 1,
  );
  return $form;
}

function members_menu($may_cache) {
  $items = array();

  if ($may_cache) {
    $items[] = array('path' => 'members',
                     'title' => t("members"),
                     'callback' => "members_page",
                     'access' => user_access("access members list"),
                     'type' => MENU_MODIFIABLE_BY_ADMIN );
  }

  return $items;
}


function members_perm() {
  return array("access members list");
}

function members_page($rids = null) {

  if (user_access("access members list")) {
    
    // you may specify roles using second url argument. otherwise, use admin pref
    if ($rids) {
      $roles = explode(',', $rids);
    }
    else {
      $roles = variable_get("members_roles", array());
    }

    if ($roles) {

      $fields = array();
      $enabled_fields = variable_get("members_fields", _member_fields());
      foreach (_member_fields() as $field => $data) {
        if (in_array($field, $enabled_fields)) {
          $fields[$field] = $data;
        }
      }
      foreach ($fields as $field => $data) {
        if (drupal_substr($field, 0, 8) == 'profile.') {
          $field = 'p.value';
        } else if ($field == 'rid') {
          $field = '';
        }
        $header[] = array("data" => $data, "field" => $field);
      }
      
      foreach ($roles as $rid) {
        $list[] = "'" . db_escape_string($rid) ."'";
      }
      $list = implode(',', $list);

      $query = "SELECT DISTINCT(u.uid) FROM {users} u INNER JOIN {users_roles} r ON u.uid=r.uid";
      $sort = tablesort_get_order($header);
      if ($sort['sql'] == 'p.value') {
        $fieldid = db_result(db_query("SELECT fid FROM {profile_fields} WHERE name='%s'",drupal_substr(array_search($sort['name'], $fields), 8)));
        $query.= " LEFT JOIN {profile_values} p ON u.uid=p.uid WHERE (p.fid = '". db_escape_string($fieldid). "' OR p.fid IS NULL) AND";
      }
      else {
        $query.= " WHERE";
      }
      $query.= " r.rid IN ($list) AND u.status=1" . tablesort_sql($header);
      $result = pager_query($query, 200);

      $rows = array();
      $profile_fields = array();
      while ($userid = db_fetch_object($result)) {
        $account = user_load(array('uid' => $userid->uid));
        $row = array();
        foreach ($fields as $field => $title) {
          $data = NULL;
          if (drupal_substr($field, 0, 8) == 'profile.') {
            $field = drupal_substr($field, 8);
            if (!$profile_fields[$field]) {
              $profile_fields[$field] = db_fetch_object(db_query("SELECT * FROM {profile_fields} WHERE name='%s'", $field));
            }
            $data = profile_view_field($account, $profile_fields[$field]);
          }
          else if ($field == 'rid') {
            $data = array();
            foreach ($account->roles as $rid => $role) {
              if (in_array($rid, $roles)) {
                $data[] = l($role, 'members/'.$rid);
              }
            }
            $data = implode (', ', $data);
          }
          else if ($field == 'picture') {
            $data = theme_user_picture($account);
          }
          else if ($field == 'changed') {
            $data = format_interval(time() - $account->changed);
          }
          else {
            $data = $account->$field;
          }

          if (stristr($field, 'name')) {
            $data = l($data, 'user/'.$account->uid);
          }
          $row[] = array('data' => $data);
        }
        $rows[] = $row;
      }
      
      if ($pager = theme("pager", NULL, 200, 0)) {
        $rows[] = array(array("data" => $pager, "colspan" => count($header)));
      }

      $output.= '<div id="members-main">'. theme("table", $header, $rows) .'</div>';
      return  $output;
    }
    else {
      return t("Warning: there aren't any users with roles configured to be shown here.");
    }
  }
}

function _member_fields() {
  $output = array();

  $output['rid'] = t('Roles');
  $output['name'] = t('Username');

  // profile fields
  if (module_exist('profile')) {
    $result = db_query("SELECT name,title FROM {profile_fields} WHERE visibility = %d ORDER BY weight ASC", PROFILE_PUBLIC_LISTINGS);
    while ($row = db_fetch_object($result)) {
      $output["profile.$row->name"] = $row->title;
    }
  }

  $output['mail'] = t('Email');
  $output['changed'] = t('Last Seen');
  $output['picture'] = t('Picture');

  return $output;
}
?>