304 lines
9.9 KiB
PHP
304 lines
9.9 KiB
PHP
<?php
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/*
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* Name: Image Scores (Numeric)
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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 score images
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* Documentation:
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* Each registered user may vote an image +1 or -1, the
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* image's score is the sum of all votes.
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*/
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class NumericScoreSetEvent extends Event {
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var $image_id, $user, $score;
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public function NumericScoreSetEvent(/*int*/ $image_id, User $user, /*int*/ $score) {
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$this->image_id = $image_id;
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$this->user = $user;
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$this->score = $score;
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}
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}
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class NumericScore extends Extension {
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public function onInitExt(InitExtEvent $event) {
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global $config;
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if($config->get_int("ext_numeric_score_version", 0) < 1) {
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$this->install();
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}
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}
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public function onDisplayingImage(DisplayingImageEvent $event) {
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global $user, $page;
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if(!$user->is_anonymous()) {
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$html = $this->theme->get_voter_html($event->image);
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$page->add_block(new Block("Image Score", $html, "left", 20));
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}
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}
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public function onUserPageBuilding(UserPageBuildingEvent $event) {
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global $page, $user;
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if($user->can("edit_other_vote")) {
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$html = $this->theme->get_nuller_html($event->display_user);
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$page->add_block(new Block("Votes", $html, "main", 60));
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}
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}
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public function onPageRequest(PageRequestEvent $event) {
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global $config, $database, $user, $page;
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if($event->page_matches("numeric_score_votes")) {
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$image_id = int_escape($event->get_arg(0));
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$x = $database->get_all(
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"SELECT users.name as username, user_id, score
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FROM numeric_score_votes
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JOIN users ON numeric_score_votes.user_id=users.id
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WHERE image_id=?",
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array($image_id));
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$html = "<table>";
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foreach($x as $vote) {
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$html .= "<tr><td>";
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$html .= "<a href='/user/{$vote['username']}'>{$vote['username']}</a>";
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$html .= "</td><td>";
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$html .= $vote['score'];
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$html .= "</td></tr>";
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}
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die($html);
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}
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if($event->page_matches("numeric_score_vote") && $user->check_auth_token()) {
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if(!$user->is_anonymous()) {
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$image_id = int_escape($_POST['image_id']);
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$char = $_POST['vote'];
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$score = null;
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if($char == "up") $score = 1;
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else if($char == "null") $score = 0;
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else if($char == "down") $score = -1;
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if(!is_null($score) && $image_id>0) send_event(new NumericScoreSetEvent($image_id, $user, $score));
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$page->set_mode("redirect");
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$page->set_redirect(make_link("post/view/$image_id"));
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}
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}
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if($event->page_matches("numeric_score/remove_votes_on") && $user->check_auth_token()) {
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if($user->can("edit_other_vote")) {
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$image_id = int_escape($_POST['image_id']);
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$database->execute(
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"DELETE FROM numeric_score_votes WHERE image_id=?",
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array($image_id));
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$database->execute(
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"UPDATE images SET numeric_score=0 WHERE id=?",
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array($image_id));
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$page->set_mode("redirect");
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$page->set_redirect(make_link("post/view/$image_id"));
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}
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}
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if($event->page_matches("numeric_score/remove_votes_by") && $user->check_auth_token()) {
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if($user->can("edit_other_vote")) {
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$this->delete_votes_by(int_escape($_POST['user_id']));
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$page->set_mode("redirect");
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$page->set_redirect(make_link());
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}
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}
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if($event->page_matches("popular_by_day") || $event->page_matches("popular_by_month") || $event->page_matches("popular_by_year")) {
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$t_images = $config->get_int("index_height") * $config->get_int("index_width");
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//TODO: Add Popular_by_week.
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//year
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if(empty($_GET['year'])){
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$year = date("Y");
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}else{
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$year = $_GET['year'];
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}
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//month
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if(empty($_GET['month']) || int_escape($_GET['month']) > 12){
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$month = date("m");
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}else{
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$month = $_GET['month'];
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}
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//day
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if(empty($_GET['day']) || int_escape($_GET['day']) > 31){
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$day = date("d");
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}else{
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$day = $_GET['day'];
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}
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$totaldate = $year."/".$month."/".$day;
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$sql =
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"SELECT * FROM images
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WHERE EXTRACT(YEAR FROM posted) = :year
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";
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$agrs = array("limit" => $t_images, "year" => $year);
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if($event->page_matches("popular_by_day")){
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$sql .=
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"AND EXTRACT(MONTH FROM posted) = :month
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AND EXTRACT(DAY FROM posted) = :day
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AND NOT numeric_score=0
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";
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//array_push doesn't seem to like using double arrows
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//this requires us to instead create two arrays and merge
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$sgra = array("month" => $month, "day" => $day);
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$args = array_merge($agrs, $sgra);
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$dte = array($totaldate, date("F jS, Y", (strtotime($totaldate))), "\\y\\e\\a\\r\\=Y\\&\\m\\o\\n\\t\\h\\=m\\&\\d\\a\\y\\=d", "day");
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}
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if($event->page_matches("popular_by_month")){
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$sql .=
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"AND EXTRACT(MONTH FROM posted) = :month
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AND NOT numeric_score=0
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";
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$sgra = array("month" => $month);
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$args = array_merge($agrs, $sgra);
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$title = date("F Y", (strtotime($totaldate)));
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$dte = array($totaldate, $title, "\\y\\e\\a\\r\\=Y\\&\\m\\o\\n\\t\\h\\=m", "month");
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}
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if($event->page_matches("popular_by_year")){
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$sql .= "AND NOT numeric_score=0";
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$dte = array($totaldate, $year, "\y\e\a\\r\=Y", "year");
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$args = $agrs;
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}
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$sql .= " ORDER BY numeric_score DESC LIMIT :limit OFFSET 0";
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//filter images by year/score != 0 > limit to max images on one page > order from highest to lowest score
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$result = $database->get_all($sql, $args);
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$images = array();
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foreach($result as $singleResult) {
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$images[] = Image::by_id($singleResult["id"]);
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}
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$this->theme->view_popular($images, $dte);
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}
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}
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public function onNumericScoreSet(NumericScoreSetEvent $event) {
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global $user;
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log_debug("numeric_score", "Rated Image #{$event->image_id} as {$event->score}");
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$this->add_vote($event->image_id, $user->id, $event->score);
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}
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public function onImageDeletion(ImageDeletionEvent $event) {
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global $database;
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$database->execute("DELETE FROM numeric_score_votes WHERE image_id=:id", array("id" => $event->image->id));
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}
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public function onUserDeletion(UserDeletionEvent $event) {
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$this->delete_votes_by($event->id);
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}
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public function delete_votes_by(/*int*/ $user_id) {
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global $database;
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$image_ids = $database->get_col("SELECT image_id FROM numeric_score_votes WHERE user_id=?", array($user_id));
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$database->execute(
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"DELETE FROM numeric_score_votes WHERE user_id=? AND image_id IN (".implode(",", $image_ids).")",
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array($user_id));
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$database->execute("
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UPDATE images
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SET numeric_score=COALESCE(
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(
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SELECT SUM(score)
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FROM numeric_score_votes
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WHERE image_id=images.id
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),
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0
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)
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WHERE images.id IN (".implode(",", $image_ids).")");
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}
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// FIXME: on user deletion
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// FIXME: on user vote nuke
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public function onParseLinkTemplate(ParseLinkTemplateEvent $event) {
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$event->replace('$score', $event->image->numeric_score);
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}
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public function onSearchTermParse(SearchTermParseEvent $event) {
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$matches = array();
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if(preg_match("/^score(<|<=|=|>=|>)(-?\d+)$/", $event->term, $matches)) {
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$cmp = $matches[1];
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$score = $matches[2];
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$event->add_querylet(new Querylet("numeric_score $cmp $score"));
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}
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if(preg_match("/^upvoted_by=(.*)$/", $event->term, $matches)) {
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$duser = User::by_name($matches[1]);
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if(is_null($duser)) {
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throw new SearchTermParseException(
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"Can't find the user named ".html_escape($matches[1]));
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}
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$event->add_querylet(new Querylet(
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"images.id in (SELECT image_id FROM numeric_score_votes WHERE user_id=:ns_user_id AND score=1)",
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array("ns_user_id"=>$duser->id)));
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}
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if(preg_match("/^downvoted_by=(.*)$/", $event->term, $matches)) {
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$duser = User::by_name($matches[1]);
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if(is_null($duser)) {
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throw new SearchTermParseException(
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"Can't find the user named ".html_escape($matches[1]));
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}
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$event->add_querylet(new Querylet(
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"images.id in (SELECT image_id FROM numeric_score_votes WHERE user_id=:ns_user_id AND score=-1)",
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array("ns_user_id"=>$duser->id)));
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}
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if(preg_match("/^upvoted_by_id=(\d+)$/", $event->term, $matches)) {
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$iid = int_escape($matches[1]);
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$event->add_querylet(new Querylet(
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"images.id in (SELECT image_id FROM numeric_score_votes WHERE user_id=:ns_user_id AND score=1)",
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array("ns_user_id"=>$iid)));
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}
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if(preg_match("/^downvoted_by_id=(\d+)$/", $event->term, $matches)) {
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$iid = int_escape($matches[1]);
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$event->add_querylet(new Querylet(
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"images.id in (SELECT image_id FROM numeric_score_votes WHERE user_id=:ns_user_id AND score=-1)",
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array("ns_user_id"=>$iid)));
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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_numeric_score_version") < 1) {
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$database->execute("ALTER TABLE images ADD COLUMN numeric_score INTEGER NOT NULL DEFAULT 0");
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$database->execute("CREATE INDEX images__numeric_score ON images(numeric_score)");
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$database->create_table("numeric_score_votes", "
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image_id INTEGER NOT NULL,
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user_id INTEGER NOT NULL,
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score INTEGER NOT NULL,
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UNIQUE(image_id, user_id),
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INDEX(image_id),
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FOREIGN KEY (image_id) REFERENCES images(id) ON DELETE CASCADE,
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FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
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");
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$config->set_int("ext_numeric_score_version", 1);
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}
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if($config->get_int("ext_numeric_score_version") < 2) {
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$database->execute("CREATE INDEX numeric_score_votes__user_votes ON numeric_score_votes(user_id, score)");
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$config->set_int("ext_numeric_score_version", 2);
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}
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}
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private function add_vote(/*int*/ $image_id, /*int*/ $user_id, /*int*/ $score) {
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global $database;
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$database->execute(
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"DELETE FROM numeric_score_votes WHERE image_id=:imageid AND user_id=:userid",
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array("imageid" => $image_id, "userid" => $user_id));
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if($score != 0) {
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$database->execute(
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"INSERT INTO numeric_score_votes(image_id, user_id, score) VALUES(:imageid, :userid, :score)",
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array("imageid" => $image_id, "userid" => $user_id, "score" => $score));
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}
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$database->Execute(
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"UPDATE images SET numeric_score=(
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COALESCE(
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(SELECT SUM(score) FROM numeric_score_votes WHERE image_id=:imageid),
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0
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)
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) WHERE id=:id",
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array("imageid" => $image_id, "id" => $image_id));
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}
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}
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?>
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