Add Trending Tags widget + template

diff --git a/src/Content/Widget/TrendingTags.php b/src/Content/Widget/TrendingTags.php
new file mode 100644 (file)
index 0000000..15a06e0
--- /dev/null
+++ b/src/Content/Widget/TrendingTags.php
@@ -0,0 +1,114 @@
+<?php
+
+namespace Friendica\Content\Widget;
+
+use Friendica\Core\Cache;
+use Friendica\Core\L10n;
+use Friendica\Core\Renderer;
+use Friendica\Database\DBA;
+use Friendica\Model\Term;
+
+class TrendingTags
+{
+       /**
+        * @param string $content 'global' (all posts) or 'local' (this node's posts only)
+        * @param int    $period  Period in hours to consider posts
+        * @return string
+        * @throws \Exception
+        */
+       public static function getHTML($content = 'global', int $period = 24)
+       {
+               if ($content == 'local') {
+                       $tags = self::getLocalTrendingTags($period);
+               } else {
+                       $tags = self::getGlobalTrendingTags($period);
+               }
+
+               $tpl = Renderer::getMarkupTemplate('widget/trending_tags.tpl');
+               $o = Renderer::replaceMacros($tpl, [
+                       '$title' => L10n::tt('Trending Tags (last %d hour)', 'Trending Tags (last %d hours)', $period),
+                       '$more' => L10n::t('More Trending Tags'),
+                       '$tags' => $tags,
+               ]);
+
+               return $o;
+       }
+
+       /**
+        * Returns a list of the most frequent global tags over the given period
+        *
+        * @param int $period Period in hours to consider posts
+        * @return array
+        * @throws \Exception
+        */
+       private static function getGlobalTrendingTags(int $period)
+       {
+               $tags = Cache::get('global_trending_tags');
+
+               if (!$tags) {
+                       $tagsStmt = DBA::p("SELECT t.`term`, COUNT(*) AS `score`
+FROM `term` t
+ JOIN `item` i ON i.`id` = t.`oid` AND i.`uid` = t.`uid`
+ JOIN `thread` ON `thread`.`iid` = i.`id`
+WHERE `thread`.`visible`
+  AND NOT `thread`.`deleted`
+  AND NOT `thread`.`moderated`
+  AND NOT `thread`.`private`
+  AND t.`uid` = 0
+  AND t.`otype` = ?
+  AND t.`type` = ?
+  AND t.`term` != ''
+  AND i.`received` > DATE_SUB(NOW(), INTERVAL ? HOUR)
+GROUP BY `term`
+ORDER BY `score` DESC
+LIMIT 20", Term::OBJECT_TYPE_POST, Term::HASHTAG, $period);
+
+                       if (DBA::isResult($tags)) {
+                               $tags = DBA::toArray($tagsStmt);
+                               Cache::set('global_trending_tags', $tags, Cache::HOUR);
+                       }
+               }
+
+               return $tags ?: [];
+       }
+
+       /**
+        * Returns a list of the most frequent local tags over the given period
+        *
+        * @param int $period Period in hours to consider posts
+        * @return array
+        * @throws \Exception
+        */
+       private static function getLocalTrendingTags(int $period)
+       {
+               $tags = Cache::get('local_trending_tags');
+
+               if (!$tags) {
+                       $tagsStmt = DBA::p("SELECT t.`term`, COUNT(*) AS `score`
+FROM `term` t
+JOIN `item` i ON i.`id` = t.`oid` AND i.`uid` = t.`uid`
+JOIN `thread` ON `thread`.`iid` = i.`id`
+JOIN `user` ON `user`.`uid` = `thread`.`uid` AND NOT `user`.`hidewall`
+WHERE `thread`.`visible`
+  AND NOT `thread`.`deleted`
+  AND NOT `thread`.`moderated`
+  AND NOT `thread`.`private`
+  AND `thread`.`wall`
+  AND `thread`.`origin`
+  AND t.`otype` = ?
+  AND t.`type` = ?
+  AND t.`term` != ''
+  AND i.`received` > DATE_SUB(NOW(), INTERVAL ? HOUR)
+GROUP BY `term`
+ORDER BY `score` DESC
+LIMIT 20", Term::OBJECT_TYPE_POST, Term::HASHTAG, $period);
+
+                       if (DBA::isResult($tags)) {
+                               $tags = DBA::toArray($tagsStmt);
+                               Cache::set('local_trending_tags', $tags, Cache::HOUR);
+                       }
+               }
+
+               return $tags ?: [];
+       }
+}

diff --git a/view/templates/widget/trending_tags.tpl b/view/templates/widget/trending_tags.tpl
new file mode 100644 (file)
index 0000000..554b498
--- /dev/null
+++ b/view/templates/widget/trending_tags.tpl
@@ -0,0 +1,18 @@
+<div id="trending-tags-sidebar" class="widget">
+       <h3>{{$title}}</h3>
+       <ul>
+{{section name=ol loop=$tags max=10}}
+               <li><a href="search?tag={{$tags[ol].term}}">{{$tags[ol].term}}</a></li>
+{{/section}}
+       </ul>
+{{if $tags|count > 10}}
+       <details>
+               <summary>{{$more}}</summary>
+               <ul>
+       {{section name=ul loop=$tags start=10}}
+                       <li><a href="search?tag={{$tags[ul].term}}">{{$tags[ul].term}}</a></li>
+       {{/section}}
+               </ul>
+       </details>
+{{/if}}
+</div>