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<?php
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// $Id: invite_stats.module,v 1.3 2008/08/20 13:26:12 smk Exp $
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/**
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* @file
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* Displays some statistics about sent invitations.
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*/
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/**
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* Implementation of hook_theme().
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*/
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function invite_stats_theme() {
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return array(
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'invite_stats_ranking' => array(
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'arguments' => array('inviters' => NULL, 'rank' => 1),
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),
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'invite_stats_count' => array(
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'arguments' => array('count' => NULL),
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),
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);
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}
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/**
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* Implementation of hook_perm().
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*/
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function invite_stats_perm() {
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return array('view invite statistics', 'view own invite statistics');
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}
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/**
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* Implementation of hook_user().
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*/
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function invite_stats_user($op, &$edit, &$account, $category = NULL) {
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global $user;
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switch ($op) {
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case 'view':
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$view_access = user_access('view invite statistics');
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$view_own_access = user_access('view own invite statistics') && $account->uid == $user->uid;
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if ($view_access || $view_own_access) {
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$items['accepted'] = array(
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'title' => t('Successful'),
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'value' => invite_count($account->uid, 'accepted'),
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'class' => 'successful',
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);
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$items['pending'] = array(
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'title' => t('Pending'),
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'value' => invite_count($account->uid, 'pending'),
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'class' => 'pending',
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);
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$items['expired'] = array(
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'title' => t('Unsuccessful'),
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'value' => invite_count($account->uid, 'expired'),
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'class' => 'expired',
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);
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return array(t('Invitation counts') => $items);
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}
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break;
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}
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}
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/**
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* Implementation of hook_block().
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*/
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function invite_stats_block($op = 'list', $delta = 0, $edit = array()) {
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if ($op == 'list') {
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$blocks[0] = array('info' => t('Top inviters/User rank'));
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return $blocks;
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}
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else if ($op == 'view') {
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switch ($delta) {
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case 0:
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if (user_access('view invite statistics')) {
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if (arg(0) == 'user' && is_numeric(arg(1)) && $account = user_load(array('uid' => arg(1)))) {
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$block = array(
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'subject' => t("@user's invite rank", array('@user' => $account->name)),
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'content' => invite_stats_display_user_rank($account->uid),
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);
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}
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else {
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$block = array(
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'subject' => t('Top inviters'),
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'content' => invite_stats_display_top_inviters(),
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);
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}
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}
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break;
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}
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return $block;
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}
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else if ($op == 'configure') {
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switch ($delta) {
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case 0:
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$form['invite_num_ranks'] = array(
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'#type' => 'textfield',
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'#title' => t('Number of inviters'),
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'#default_value' => variable_get('invite_num_ranks', 5),
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'#size' => 3,
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'#maxlength' => 3,
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'#description' => t('Show this number of inviters in the Top inviters and User rank blocks.'),
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'#required' => TRUE,
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);
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return $form;
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}
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}
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else if ($op == 'save') {
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switch ($delta) {
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case 0:
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variable_set('invite_num_ranks', (int)$edit['invite_num_ranks']);
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break;
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}
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}
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}
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/**
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* Render the "Top inviters" block.
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*/
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function invite_stats_display_top_inviters() {
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$inviters = array();
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$result = db_query_range("SELECT uid, COUNT(uid) AS count FROM {invite} WHERE joined <> 0 GROUP BY uid ORDER BY count DESC", 0, variable_get('invite_num_ranks', 5));
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while ($row = db_fetch_object($result)) {
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$inviters[] = $row;
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}
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return theme('invite_stats_ranking', $inviters);
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}
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/**
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* Render the displayed user's rank block.
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*/
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function invite_stats_display_user_rank($uid) {
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$inviters = array();
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$max = variable_get('invite_num_ranks', 5);
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// Get user's invite count.
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$user_invite_stats_count = db_result(db_query("SELECT COUNT(*) FROM {invite} WHERE uid = %d AND joined <> 0", $uid));
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// Calculate user's rank.
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$result = db_query("SELECT DISTINCT COUNT(uid) FROM {invite} WHERE joined <> 0 GROUP BY uid HAVING COUNT(uid) > %d", $user_invite_stats_count);
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$rank = 1;
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while ($row = db_fetch_array($result)) {
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$rank++;
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}
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// Fetch users with more invites.
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$i = 0;
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$prev_count = 0;
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$result = db_query_range("SELECT uid, COUNT(uid) AS count FROM {invite} WHERE joined <> 0 GROUP BY uid HAVING COUNT(uid) > %d ORDER BY count ASC", $user_invite_stats_count, 0, $max - 1);
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while ($row = db_fetch_object($result)) {
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if ($row->count != $prev_count) {
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$prev_count = $row->count;
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$rank--; // Decrement initial rank
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}
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array_unshift($inviters, $row);
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}
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// Add current user, now we have invite_num_ranks users at max.
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$inviters[] = (object)array('uid' => $uid, 'count' => $user_invite_stats_count);
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$user_idx = count($inviters);
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// Add users with equal or less invites.
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$i = 0;
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$prev_count = $user_invite_stats_count;
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$result = db_query_range("SELECT uid, COUNT(uid) AS count FROM {invite} WHERE joined <> 0 GROUP BY uid HAVING COUNT(uid) <= %d AND uid <> %d ORDER BY count DESC", $user_invite_stats_count, $uid, 0, $max - 1);
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while ($row = db_fetch_object($result)) {
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$inviters[] = $row;
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}
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// Slice result.
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$start = max($user_idx - 1 - floor($max / 2), 0);
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if (count($inviters) - $user_idx < floor($max / 2)) {
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$start -= max(count($inviters) - $user_idx, floor($max / 2));
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$start = max($start, 0);
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}
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$inviters = array_slice($inviters, $start, $max);
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return theme('invite_stats_ranking', $inviters, $rank);
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}
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/**
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* Theme the Top inviters/user rank block.
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*
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* @param $inviters
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* An array of arrays consisting of the user id and invite count.
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* @param $rank
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* The rank of the first inviter in the list.
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*
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* @ingroup themeable
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*/
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function theme_invite_stats_ranking($inviters, $rank = 1) {
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if ($inviters) {
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global $user;
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$header = array();
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$rows = array();
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$prev_count = 0;
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foreach ($inviters as $inviter) {
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$row = array();
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if ($inviter->count != $prev_count) {
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$row[] = array('data' => "$rank.", 'style' => 'width: 5%');
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$prev_count = $inviter->count;
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$rank++;
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}
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else {
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$row[] = '';
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}
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$row[] = theme('username', user_load(array('uid' => $inviter->uid)));
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$row[] = array('data' => theme('invite_stats_count', $inviter->count), 'align' => 'right');
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$rows[] = array('data' => $row, 'class' => ($inviter->uid == $user->uid ? 'current-user' : ''));
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}
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return theme('table', $header, $rows, array('id' => 'invite-ranks'));
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}
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}
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/**
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* Theme an invite count.
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*
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* @param $count
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* A number.
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*
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* @ingroup themeable
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*/
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function theme_invite_stats_count($count) {
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$title = format_plural($count, '1 invite', '@count invites');
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return '<span class="count" title="'. $title .'">'. $count .'</span>';
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}
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