46ba77fa67
git-svn-id: file:///home/shish/svn/shimmie2/trunk@527 7f39781d-f577-437e-ae19-be835c7a54ca
85 lines
2.3 KiB
PHP
85 lines
2.3 KiB
PHP
<?php
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/**
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* Name: Image Scores
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* Author: Shish <webmaster@shishnet.org>
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* Link: http://trac.shishnet.org/shimmie2/
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* License: GPLv2
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* Description: Allow users to score images
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*/
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class Score extends Extension {
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var $theme;
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public function receive_event($event) {
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if(is_null($this->theme)) $this->theme = get_theme_object("score", "ScoreTheme");
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if(is_a($event, 'InitExtEvent')) {
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global $config;
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if($config->get_int("ext_score_version", 0) < 1) {
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$this->install();
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}
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global $config;
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$config->set_default_string("ext_rating_anon_privs", 'sq');
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$config->set_default_string("ext_rating_user_privs", 'sq');
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}
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if(is_a($event, 'PageRequestEvent') && $event->page_name == "score" &&
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$event->get_arg(0) == "set" && $event->user->is_admin() &&
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isset($_POST['score']) && isset($_POST['image_id'])) {
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$i_score = int_escape($_POST['score']);
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$i_image_id = int_escape($_POST['image_id']);
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if($i_score >= -2 || $i_score <= 2) {
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$this->add_vote($i_image_id, $event->user->id, $i_score);
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}
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$event->page->set_mode("redirect");
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$event->page->set_redirect(make_link("post/view/$i_image_id"));
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}
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if(is_a($event, 'DisplayingImageEvent')) {
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$this->theme->display_rater($event->page, $event->image->id, $event->image->score);
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}
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if(is_a($event, 'SetupBuildingEvent')) {
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/*
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TODO: disable anon voting
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*/
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}
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}
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private function install() {
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global $database;
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global $config;
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if($config->get_int("ext_score_version") < 1) {
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$database->Execute("ALTER TABLE images ADD COLUMN score INTEGER NOT NULL DEFAULT 0");
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$database->Execute("CREATE INDEX images__score ON images(score)");
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$database->Execute("
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CREATE TABLE images_score_votes (
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image_id INTEGER NOT NULL,
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user_id INTEGER NOT NULL,
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score INTEGER NOT NULL,
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UNIQUE(image_id, user_id),
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INDEX(image_id)
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)
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");
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$config->set_int("ext_score_version", 1);
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}
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}
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private function add_vote($image_id, $user_id, $score) {
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global $database;
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// TODO: update if already voted
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$database->Execute(
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"INSERT INTO images_score_votes(image_id, user_id, score) VALUES(?, ?, ?)",
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array($image_id, $user_id, $score));
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$database->Execute(
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"UPDATE images SET score=(SELECT AVG(score) FROM images_score_votes WHERE image_id=?) WHERE id=?",
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array($image_id, $image_id));
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}
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}
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add_event_listener(new Score());
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?>
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