kopia lustrzana https://github.com/friendica/friendica
Use a hopefully better "for you" algorithm
rodzic
15fc205d04
commit
9ec7925ec5
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@ -30,6 +30,7 @@ use Friendica\Content\Nav;
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use Friendica\Content\Text\HTML;
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use Friendica\Content\Widget;
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use Friendica\Content\Widget\TrendingTags;
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use Friendica\Core\Cache\Enum\Duration;
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use Friendica\Core\Renderer;
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use Friendica\Database\DBA;
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use Friendica\DI;
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@ -236,32 +237,28 @@ class Channel extends BaseModule
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protected static function getItems()
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{
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if (self::$content == self::WHATSHOT) {
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$post = DBA::selectToArray('post-engagement', ['comments'], ["`contact-type` != ?", Contact::TYPE_COMMUNITY], ['order' => ['comments' => true], 'limit' => [DI::config()->get('channel', 'hot_posts_item_limit'), 1]]);
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$comments = $post[0]['comments'] ?? 0;
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if (!is_null(self::$accountType)) {
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$condition = ["`comments` >= ? AND `contact-type` = ?", $comments, self::$accountType];
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$condition = ["`comments` >= ? AND `contact-type` = ?", self::getMedianComments(4), self::$accountType];
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} else {
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$condition = ["`comments` >= ? AND `contact-type` != ?", $comments, Contact::TYPE_COMMUNITY];
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$condition = ["`comments` >= ? AND `contact-type` != ?", self::getMedianComments(4), Contact::TYPE_COMMUNITY];
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}
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} elseif (self::$content == self::FORYOU) {
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$cid = Contact::getPublicIdByUserId(DI::userSession()->getLocalUserId());
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if (!is_null(self::$accountType)) {
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$condition = ["`author-id` IN (SELECT `relation-cid` FROM `contact-relation` WHERE `cid` = ? AND `thread-score` > ? AND `relation-thread-score` > ?) AND `contact-type` = ?", $cid, 0, 0, self::$accountType];
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} else {
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$condition = ["`author-id` IN (SELECT `relation-cid` FROM `contact-relation` WHERE `cid` = ? AND `thread-score` > ? AND `relation-thread-score` > ?)", $cid, 0, 0];
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}
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$condition = ["(`author-id` IN (SELECT `relation-cid` FROM `contact-relation` WHERE `cid` = ? AND `thread-score` > ?) OR (`comments` >= ? AND `author-id` IN (SELECT `pid` FROM `account-user-view` WHERE `uid` = ? AND `rel` IN (?, ?))))",
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$cid, self::getMedianThreadScore($cid, 4), self::getMedianComments(3), DI::userSession()->getLocalUserId(), Contact::FRIEND, Contact::SHARING];
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} elseif (self::$content == self::FOLLOWERS) {
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if (!is_null(self::$accountType)) {
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$condition = ["`author-id` IN (SELECT `pid` FROM `account-user-view` WHERE uid` = ? AND `rel` = ?) AND `contact-type` = ?", DI::userSession()->getLocalUserId(), Contact::FOLLOWER, self::$accountType];
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} else {
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$condition = ["`author-id` IN (SELECT `pid` FROM `account-user-view` WHERE `uid` = ? AND `rel` = ?)", DI::userSession()->getLocalUserId(), Contact::FOLLOWER];
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}
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$condition = ["`author-id` IN (SELECT `pid` FROM `account-user-view` WHERE `uid` = ? AND `rel` = ?)", DI::userSession()->getLocalUserId(), Contact::FOLLOWER];
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}
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if ((self::$content != self::WHATSHOT) && !is_null(self::$accountType)) {
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$condition[0] .= " AND `contact-type` = ?";
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$condition[] = self::$accountType;
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}
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$params = ['order' => ['created' => true], 'limit' => self::$itemsPerPage];
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if (!empty(self::$item_id)) {
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// @todo
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$condition[0] .= " AND `uri-id` = ?";
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$condition[] = self::$item_id;
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} else {
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@ -299,4 +296,42 @@ class Channel extends BaseModule
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return $items;
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}
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private static function getMedianComments(int $divider): int
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{
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$cache_key = 'Channel:getHotPostsItemLimit:' . $divider;
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$comments = DI::cache()->get($cache_key);
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if (!empty($comments)) {
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return $comments;
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}
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$limit = DBA::count('post-engagement', ["`contact-type` != ? AND `comments` > ?", Contact::TYPE_COMMUNITY, 0]) / $divider;
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$post = DBA::selectToArray('post-engagement', ['comments'], ["`contact-type` != ?", Contact::TYPE_COMMUNITY, 0], ['order' => ['comments' => true], 'limit' => [$limit, 1]]);
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$comments = $post[0]['comments'] ?? 0;
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if (empty($comments)) {
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return 0;
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}
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DI::cache()->set($cache_key, $comments, Duration::HOUR);
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return $comments;
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}
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private static function getMedianThreadScore(int $cid, int $divider): int
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{
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$cache_key = 'Channel:getThreadScore:' . $cid . ':' . $divider;
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$score = DI::cache()->get($cache_key);
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if (!empty($score)) {
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return $score;
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}
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$limit = DBA::count('contact-relation', ["`cid` = ? AND `thread-score` > ?", $cid, 0]) / $divider;
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$relation = DBA::selectToArray('contact-relation', ['thread-score'], ['cid' => $cid], ['order' => ['thread-score' => true], 'limit' => [$limit, 1]]);
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$score = $relation[0]['thread-score'] ?? 0;
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if (empty($score)) {
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return 0;
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}
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DI::cache()->set($cache_key, $score, Duration::HOUR);
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return $score;
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}
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}
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