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<?php
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/* $Id: simplevote.module,v 1.10 2006/05/05 04:57:09 eaton Exp $ */
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/**
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* @file
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* A demonstration of VotingAPI.
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*/
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function simplevote_menu($may_cache) {
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theme('add_style', theme('simplevote_css_path'));
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$items = array();
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if ($may_cache) {
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$items[] = array('path' => 'vote', 'title' => t('vote on content'),
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'callback' => 'simplevote_vote', 'access' => true, 'type' => MENU_CALLBACK);
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}
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return $items;
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}
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function simplevote_help($section) {
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switch ($section) {
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case 'admin/modules#description':
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return t('Adds a five-star vote widget to every node and comment.');
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break;
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}
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}
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function simplevote_vote($type, $cid, $value) {
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// sanity-check the incoming values.
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if (is_numeric($cid) && is_numeric($value)) {
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if ($value > 100) {
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$value = 100;
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}
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$vote->value = $value;
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$vote->value_type = 'percent';
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$vote->tag = VOTINGAPI_VALUE_DEFAULT_TAG;
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votingapi_set_vote($type, $cid, $vote);
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}
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drupal_goto(drupal_get_destination());
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}
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function theme_simplevote_widget($cid, $type) {
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// Get the current vote. It should come in as a percentage,
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$vote = votingapi_get_voting_result($type, $cid, 'percent', VOTINGAPI_VALUE_DEFAULT_TAG, 'average');
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if ($vote) {
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$stars = round($vote->value);
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}
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else {
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$stars = 0;
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}
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$output = '<div class="simplevote_widget">' . t("Rating");
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for ($i = 20; $i <= 100; $i += 20) {
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$output .= theme('simplevote_icon', $type, $cid, $i, $stars >= $i);
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}
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$output .= '</div>';
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return $output;
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}
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function theme_simplevote_icon($type, $cid, $value, $filled) {
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global $user;
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$url = 'vote/' . $type . '/' . $cid . '/' . $value;
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if ($filled) {
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$class = 'vote-on';
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}
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else {
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$class = 'vote-off';
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}
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// If the user isn't logged in, show the vote but don't let them change it.
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// We do this by writing out a span with the same classes, rather than an <A> tag.
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if ($user->uid == 0) {
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return '<span class="'.$class.'"></span>';
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}
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else {
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return l('', $url, array('class' => $class), drupal_get_destination(), NULL, FALSE, TRUE);
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}
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}
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function theme_simplevote_css_path() {
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return drupal_get_path('module', 'simplevote') . '/theme/simplevote.css';
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}
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function simplevote_nodeapi(&$node, $op, $teaser, $page) {
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switch ($op) {
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case 'view':
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if ($teaser == false) {
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$node->body = theme('simplevote_widget', $node->nid, 'node') . $node->body;
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}
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break;
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}
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}
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function simplevote_votingapi_format($vobj, $field) {
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if ($vobj->value_type == 'percent') {
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switch ($field) {
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case 'value':
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$score = round($vobj->value / 20, 1);
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return $score . ' stars';
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break;
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case 'result':
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switch ($vobj->function) {
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case 'average':
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$score = round($vobj->value / 20, 1);
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return $score . ' stars';
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break;
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case 'count':
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return $vobj->value . ' votes';
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break;
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}
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break;
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}
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}
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}
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function simplevote_votingapi_action_sets() {
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$sets = array(
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'simple_promotion' => array(
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'description' => 'Promotes a node to the front page if enough users rate it highly.',
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'content_type' => 'node',
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'condition_mask' => 'AND',
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'enabled' => 1,
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'source' => 'SimpleVote',
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'conditions' => array(
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'is_promoted' => array(
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'description' => 'Node is not promoted',
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'handler' => 'votingapi_node_properties_handler',
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'data' => array(
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'property' => 'promote',
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'comparison' => '!=',
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'value' => 1,
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),
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),
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'min_voters' => array(
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'description' => 'More than 5 voters',
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'handler' => 'votingapi_vote_result_handler',
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'data' => array(
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'function' => 'count',
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'tag' => 'vote',
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'comparison' => '>',
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'value' => 5,
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),
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),
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'min_vote' => array(
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'description' => 'Average higher than 75',
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'handler' => 'votingapi_vote_result_handler',
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'data' => array(
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'function' => 'average',
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'tag' => 'vote',
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'comparison' => '>',
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'value' => 75,
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),
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),
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),
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'actions' => array(
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'action_node_promote',
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),
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),
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);
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return $sets;
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}
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function simplevote_elements() {
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// A simple element that maps n points to a list of radio butons.
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// Useful for 'five star' rating widgets and so on.
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$type['rating'] = array(
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'#input' => TRUE,
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'#first' => 1,
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'#points' => 5,
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'#process' => array('expand_rating' => array())
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);
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return $type;
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}
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function theme_rating($element) {
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if ($element['#title'] || $element['#description']) {
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return theme('form_element', $element['#title'], '<div class="container-inline">' . $element['#children'] . '</div>', $element['#description'], $element['#id'], $element['#required'], form_get_error($element));
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}
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else {
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return '<div class="container-inline">' . $element['#children'] . '</div>';
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}
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}
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/**
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* Roll out a single radios element to a list of radios,
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* using the options array as index.
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*/
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function expand_rating($element) {
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if ($element['#points'] > 1) {
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for ($i = $element['#first']; $i <= $element['#points']; $i++) {
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$element[$i] = array(
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'#type' => 'radio',
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'#return_value' => $i,
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'#default_value' => $element['#default_value'],
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'#parents' => $element['#parents'],
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'#spawned' => TRUE,
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);
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}
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}
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return $element;
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}
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