237 lines
7.0 KiB
PHP
237 lines
7.0 KiB
PHP
<?php
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/*
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* Name: Image Ratings
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* Author: Shish <webmaster@shishnet.org>
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* Link: http://code.shishnet.org/shimmie2/
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* License: GPLv2
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* Description: Allow users to rate images "safe", "questionable" or "explicit"
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*/
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class RatingSetEvent extends Event {
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var $image, $user, $rating;
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public function RatingSetEvent(Image $image, User $user, $rating) {
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assert(in_array($rating, array("s", "q", "e", "u")));
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$this->image = $image;
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$this->user = $user;
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$this->rating = $rating;
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}
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}
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class Ratings extends Extension {
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public function get_priority() {return 50;}
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public function onInitExt(InitExtEvent $event) {
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global $config;
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if($config->get_int("ext_ratings2_version") < 2) {
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$this->install();
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}
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$config->set_default_string("ext_rating_anon_privs", 'squ');
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$config->set_default_string("ext_rating_user_privs", 'sqeu');
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$config->set_default_string("ext_rating_admin_privs", 'sqeu');
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}
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public function onSetupBuilding(SetupBuildingEvent $event) {
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$privs = array();
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$privs['Safe Only'] = 's';
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$privs['Safe and Unknown'] = 'su';
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$privs['Safe and Questionable'] = 'sq';
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$privs['Safe, Questionable, Unknown'] = 'squ';
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$privs['All'] = 'sqeu';
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$sb = new SetupBlock("Image Ratings");
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$sb->add_choice_option("ext_rating_anon_privs", $privs, "Anonymous: ");
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$sb->add_choice_option("ext_rating_user_privs", $privs, "<br>Users: ");
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$sb->add_choice_option("ext_rating_admin_privs", $privs, "<br>Admins: ");
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$event->panel->add_block($sb);
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}
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public function onPostListBuilding(PostListBuildingEvent $event) {
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global $user;
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if($user->is_admin() && !empty($event->search_terms)) {
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$this->theme->display_bulk_rater(implode(" ", $event->search_terms));
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}
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}
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public function onDisplayingImage(DisplayingImageEvent $event) {
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global $user, $database, $page;
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/**
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* Deny images upon insufficient permissions.
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**/
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$user_view_level = Ratings::get_user_privs($user);
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$user_view_level = preg_split('//', $user_view_level, -1);
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if(!in_array($event->image->rating, $user_view_level)) {
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$page->set_mode("redirect");
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$page->set_redirect(make_link("post/list"));
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}
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}
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public function onRatingSet(RatingSetEvent $event) {
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if(empty($event->image->rating)){
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$old_rating = "";
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}else{
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$old_rating = $event->image->rating;
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}
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$this->set_rating($event->image->id, $event->rating, $old_rating);
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}
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public function onImageInfoBoxBuilding(ImageInfoBoxBuildingEvent $event) {
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if($this->can_rate()) {
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$event->add_part($this->theme->get_rater_html($event->image->id, $event->image->rating), 80);
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}
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}
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public function onImageInfoSet(ImageInfoSetEvent $event) {
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global $user;
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if($this->can_rate() && isset($_POST["rating"])) {
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send_event(new RatingSetEvent($event->image, $user, $_POST['rating']));
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}
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}
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public function onParseLinkTemplate(ParseLinkTemplateEvent $event) {
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$event->replace('$rating', $this->theme->rating_to_name($event->image->rating));
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}
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public function onSearchTermParse(SearchTermParseEvent $event) {
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global $user;
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$matches = array();
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if(is_null($event->term) && $this->no_rating_query($event->context)) {
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$set = Ratings::privs_to_sql(Ratings::get_user_privs($user));
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$event->add_querylet(new Querylet("rating IN ($set)"));
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}
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if(preg_match("/^rating=([sqeu]+)$/", $event->term, $matches)) {
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$sqes = $matches[1];
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$arr = array();
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$length = strlen($sqes);
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for($i=0; $i<$length; $i++) {
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$arr[] = "'" . $sqes[$i] . "'";
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}
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$set = join(', ', $arr);
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$event->add_querylet(new Querylet("rating IN ($set)"));
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}
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if(preg_match("/^rating=(safe|questionable|explicit|unknown)$/", strtolower($event->term), $matches)) {
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$text = $matches[1];
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$char = $text[0];
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$event->add_querylet(new Querylet("rating = :img_rating", array("img_rating"=>$char)));
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}
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}
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public function onPageRequest(PageRequestEvent $event) {
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global $database, $user, $page;
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if ($event->page_matches("admin/bulk_rate")) {
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if(!$user->is_admin()) {
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throw PermissionDeniedException();
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}
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else {
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$n = 0;
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while(true) {
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$images = Image::find_images($n, 100, Tag::explode($_POST["query"]));
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if(count($images) == 0) break;
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reset($images); // rewind to first element in array.
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foreach($images as $image) {
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send_event(new RatingSetEvent($image, $user, $_POST['rating']));
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}
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$n += 100;
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}
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#$database->execute("
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# update images set rating=? where images.id in (
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# select image_id from image_tags join tags
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# on image_tags.tag_id = tags.id where tags.tag = ?);
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# ", array($_POST["rating"], $_POST["tag"]));
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$page->set_mode("redirect");
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$page->set_redirect(make_link("post/list"));
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}
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}
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}
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public static function get_user_privs($user) {
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global $config;
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if($user->is_anonymous()) {
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$sqes = $config->get_string("ext_rating_anon_privs");
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}
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else if($user->is_admin()) {
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$sqes = $config->get_string("ext_rating_admin_privs");
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}
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else {
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$sqes = $config->get_string("ext_rating_user_privs");
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}
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return $sqes;
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}
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public static function privs_to_sql(/*string*/ $sqes) {
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$arr = array();
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$length = strlen($sqes);
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for($i=0; $i<$length; $i++) {
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$arr[] = "'" . $sqes[$i] . "'";
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}
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$set = join(', ', $arr);
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return $set;
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}
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public static function rating_to_human(/*string*/ $rating) {
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switch($rating) {
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case "s": return "Safe";
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case "q": return "Questionable";
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case "e": return "Explicit";
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default: return "Unknown";
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}
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}
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// FIXME: this is a bit ugly and guessey, should have proper options
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private function can_rate() {
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global $config, $user;
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if($user->is_anonymous() && $config->get_string("ext_rating_anon_privs") == "sqeu") return false;
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if($user->is_admin()) return true;
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if(!$user->is_anonymous() && $config->get_string("ext_rating_user_privs") == "sqeu") return true;
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return false;
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}
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private function no_rating_query($context) {
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foreach($context as $term) {
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if(preg_match("/^rating=/", $term)) {
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return false;
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}
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}
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return true;
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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_ratings2_version") < 1) {
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$database->Execute("ALTER TABLE images ADD COLUMN rating CHAR(1) NOT NULL DEFAULT 'u'");
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$database->Execute("CREATE INDEX images__rating ON images(rating)");
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$config->set_int("ext_ratings2_version", 3);
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}
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if($config->get_int("ext_ratings2_version") < 2) {
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$database->Execute("CREATE INDEX images__rating ON images(rating)");
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$config->set_int("ext_ratings2_version", 2);
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}
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if($config->get_int("ext_ratings2_version") < 3) {
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$database->Execute("ALTER TABLE images CHANGE rating rating CHAR(1) NOT NULL DEFAULT 'u'");
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$config->set_int("ext_ratings2_version", 3);
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}
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}
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private function set_rating(/*int*/ $image_id, /*string*/ $rating, /*string*/ $old_rating) {
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global $database;
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if($old_rating != $rating){
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$database->Execute("UPDATE images SET rating=? WHERE id=?", array($rating, $image_id));
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log_info("rating", "Rating for Image #{$image_id} set to: ".$this->theme->rating_to_name($rating));
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}
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}
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}
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?>
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