allowvotes != -1) {
return $node;
}
$node->allowvotes = 0;
if (user_access("vote on polls")) {
if ($user->uid) {
// Pad the UID with underscores to allow a simple strstr() search
$id = "_". $user->uid ."_";
}
else {
$id = $_SERVER["REMOTE_ADDR"];
}
if (!strstr($node->voters, $id)) {
$node->allowvotes = $node->active;
}
// Save this for later
$node->polluserid = $id;
}
return $node;
}
function poll_access($op, $node) {
if ($op == "view") {
return $node->status;
}
if ($op == "create") {
return user_access("create polls");
}
}
function poll_block($op = "list", $delta = 0) {
if (user_access("access content")) {
if ($op == "list") {
$blocks[0]["info"] = t("Most recent poll");
return $blocks;
}
else {
$timestamp = db_result(db_query("SELECT MAX(created) FROM node WHERE type = 'poll' AND status = '1' AND moderate = '0'"));
if ($timestamp) {
$poll = node_load(array("type" => "poll", "created" => $timestamp, "moderate" => "0", "status" => "1"));
if ($poll->nid) {
// Poll_view dumps the output into $poll->body
poll_view($poll, 1, 1);
}
}
$block["subject"] = t("Poll: %t", array("%t" => $poll->title));
$block["content"] = $poll->body;
return $block;
}
}
}
function poll_cron() {
// Close polls that have exceeded their allowed runtime
$result = db_query("SELECT p.nid FROM poll p LEFT JOIN node n ON p.nid=n.nid WHERE (n.created + p.runtime) < '". time() ."' AND p.active = '1' AND p.runtime != '0'");
while ($poll = db_fetch_object($result)) {
db_query("UPDATE poll SET active='0' WHERE nid = %d", $poll->nid);
}
}
function poll_delete($node) {
db_query("DELETE FROM poll WHERE nid=%d", $node->nid);
db_query("DELETE FROM poll_choices WHERE nid = %d", $node->nid);
}
function poll_form(&$node, &$help, &$error) {
$admin = user_access("administer nodes");
$_duration = array(0 => t("Unlimited"), 86400 => format_interval(86400), 172800 => format_interval(172800), 345600 => format_interval(345600), 604800 => format_interval(604800), 1209600 => format_interval(1209600), 2419200 => format_interval(2419200), 4838400 => format_interval(4838400), 9676800 => format_interval(9676800), 31536000 => format_interval(31536000));
$_active = array(0 => t("Closed"), 1 => t("Active"));
$node->choices = $node->choices ? $node->choices : max(2, count($node->choice) ? count($node->choice) : 5);
if (isset($node->title)) {
// Check for at least two options and validate amount of votes:
for ($i = 0; $i < $node->choices; $i++) {
if ($node->choice[$i] != "") {
$actualchoices++;
}
if ($node->chvotes[$i] < 0) {
$error["chvotes][$i"] = theme("theme_error", t("Negative values are not allowed."));
}
}
if ($actualchoices < 2) {
$error["choice][0"] = theme("theme_error", t("You must fill in at least two choices."));
}
}
else {
$help = variable_get("poll_help", "");
}
if (function_exists("taxonomy_node_form")) {
$output = implode("", taxonomy_node_form("poll", $node));
}
for ($c = 2; $c <= 30; $c++) {
$opts[$c] = $c;
}
$output .= form_select(t("Number of choices"), "choices", $node->choices, $opts, t("This item sets the number of multiple choice options in the poll, but it doesn't have to equal the actual amount of options; you can leave the extra boxes empty."));
$output .= form_submit(t("Preview")) ."
";
for ($a = 0; $a < $node->choices; $a++) {
$output .= form_textfield(t("Choice") ." ". ($a + 1), "choice][$a", $node->choice[$a], 50, 127, $error["choice][$a"]);
if ($admin) {
$output .= form_textfield(t("Votes for choice %n", array("%n" => ($a + 1))), "chvotes][$a", $node->chvotes[$a] ? $node->chvotes[$a] : 0, 7, 7, $error["chvotes][$a"]);
}
}
if ($admin) {
$output .= form_select(t("Poll status"), "active", isset($node->active) ? $node->active : 1, $_active);
}
$output .= form_select(t("Poll duration"), "runtime", $node->runtime ? $node->runtime : 0, $_duration, t("After this period, the poll will be closed automatically."));
return $output;
}
function poll_help() {
$output .= "Users with the correct ". l("permissions","admin/user/permission") ." can create and/or vote on polls.
- To create a poll a user needs the \"create polls\" permission.
- To vote on a poll question a user must have the \"vote on polls\" permission.
- To view the results one needs the \"access content\" permission.
- To administer polls you need the \"administer nodes\" permission.
Creating a poll is much like creating any other node. Click \"create poll\" in your user box. The title of the poll should be the question, then enter the answers and the \"base\" vote counts. You can also choose the time period over which the vote will run.
The ". l("Poll", "poll") ." item in the navigation links will take you to a page where you can see all the current polls, vote on them (if you haven't already) and view the results.
";
return t($output);
}
function poll_insert($node) {
if (!user_access("administer nodes")) {
// Make sure all votes are 0 initially
for ($i = 0; $i < count($node->chvotes); $i++) $node->chvotes[$i] = 0;
$node->active = 1;
}
db_query("INSERT INTO poll (nid, runtime, voters, active) VALUES (%d, %d, '', %d)", $node->nid, $node->runtime, $node->active);
for ($i = 0; $i < $node->choices; $i++) {
if ($node->choice[$i] != "") {
db_query("INSERT INTO poll_choices (nid, chtext, chvotes, chorder) VALUES (%d, '%s', %d, %d)", $node->nid, $node->choice[$i], $node->chvotes[$i], $i);
}
}
}
function poll_link($type, $node = 0, $main) {
$links = array();
if ($type == "menu.create" && user_access("create polls")) {
$links[] = l(t("create poll"), "node/add/poll", array("title" => t("Add a new poll.")));
}
else if ($type == "page" && user_access("access content")) {
$links[] = l(t("polls"), "poll", array("title" => t("View the list of polls on this site.")));
}
else if ($type == "node" && $node->type == "poll") {
/*
** Add links to allow the user to switch between the results and the voting
** form, if he/she hasn't voted yet.
*/
// Make sure we have determined the 'allowvotes' flag
poll_allowvotes($node);
if ($node->allowvotes == 1) {
$pollresults = $_GET["pollresults"];
// Change the current URL: add/edit the value of pollresults[nid]
if ($pollresults[$node->nid]) {
// Disable
$url = eregi_replace("pollresults\[$node->nid\]=1", "pollresults[$node->nid]=0", request_uri());
$links[] = "". t("voting form") . "";
}
else {
// Enable
if (strstr(request_uri(), "pollresults[$node->nid]=")) {
$url = eregi_replace("pollresults\[$node->nid\]=0", "pollresults[$node->nid]=1", request_uri());
}
else {
$url = request_uri() . (strstr(request_uri(), "?") ? "&" : "?") ."pollresults[$node->nid]=1";
}
$links[] = "". t("view results") . "";
}
}
}
return $links;
}
function poll_load($node) {
// Load the appropriate choices into the $node object
$poll = db_fetch_object(db_query("SELECT runtime, voters, active FROM poll WHERE nid = %d", $node->nid));
$result = db_query("SELECT chtext, chvotes, chorder FROM poll_choices WHERE nid=%d ORDER BY chorder", $node->nid);
while ($choice = db_fetch_object($result)) {
$poll->choice[$choice->chorder] = $choice->chtext;
$poll->chvotes[$choice->chorder] = $choice->chvotes;
}
// Reset allowvotes flag, will be filled in later on when needed.
$poll->allowvotes = -1;
return $poll;
}
function poll_node($field) {
$info["name"] = t("poll");
$info["description"] = t("A poll is a multiple-choice question which visitors can vote on.");
return $info[$field];
}
function poll_page() {
theme("header");
$result = db_query("SELECT n.nid, n.title, p.active, SUM(c.chvotes) AS votes FROM node n LEFT JOIN poll p ON n.nid=p.nid LEFT JOIN poll_choices c ON n.nid=c.nid WHERE type = 'poll' AND status = '1' AND moderate = '0' GROUP BY n.nid, n.title, p.active, n.created ORDER BY n.created DESC");
$output = "";
while ($node = db_fetch_object($result)) {
$output .= "- ".l($node->title, "node/view/$node->nid") ." - ". format_plural($node->votes, "1 vote", "%count votes") ." - ". ($node->active ? t("open") : t("closed")) ."
";
}
$output .= "
";
theme("box", t("Polls"), $output);
theme("footer");
}
function poll_perm() {
return array("create polls", "vote on polls");
}
function poll_system($field){
$system["description"] = t("Enables your site to capture votes on different topics in the form of multiple choice questions.");
return $system[$field];
}
function poll_teaser($node) {
// Create a simple teaser that lists all the choices
if (is_array($node->choice)) {
foreach ($node->choice as $k => $v) {
if ($v != "") {
$teaser .= "* $v\n";
}
}
}
return $teaser;
}
function poll_view_voting(&$node, $main, $block, $links) {
// Display the vote form
$url = request_uri();
$output .= "";
return $output;
}
function poll_view_results(&$node, $main, $block, $links) {
// Display the results
// Count the votes and find the maximum
if ($node->choice) {
foreach ($node->choice as $key => $value) {
$votestotal += $node->chvotes[$key];
$votesmax = max($votesmax, $node->chvotes[$key]);
}
$votesmax = max($votesmax, 1);
}
// Output the divs for the text, bars and percentages
$output .= "";
if ($node->choice) {
foreach ($node->choice as $key => $value) {
if ($value != "") {
$width = round($node->chvotes[$key] * 100 / $votesmax);
$percentage = round($node->chvotes[$key] * 100 / max($votestotal, 1));
$output .= "
". filter($value) ."
";
$output .= "
";
$output .= "
";
$output .= "
";
$output .= "
";
$output .= "
$percentage%". (!$block ? " (". format_plural($node->chvotes[$key], "1 vote", "%count votes") .")" : "") ."
";
}
}
}
$output .= "
". t("Total votes") .": $votestotal
";
$output .= ($block ? "
". theme("links", $links) ."