created new category page

load random picture of category to tags list

api/Tags.php

@@ -0,0 +1,36 @@
+<?php
+require 'Database.php';
+
+$conn = Database::getInstance()->getConnection();
+
+if (isset($_POST['action'])) {
+    $action = $_POST['action'];
+    switch ($action) {
+        case "getAllTags":
+            $query = "SELECT tag_name,tag_id from tags";
+
+            $result = $conn->query($query);
+            $rows = array();
+            while ($r = mysqli_fetch_assoc($result)) {
+                array_push($rows, $r);
+            }
+            echo json_encode($rows);
+
+            break;
+        case "getRandomTagPreview":
+            $id = $_POST['id'];
+
+            $query = "SELECT thumbnail from videos
+                        INNER JOIN video_tags vt on videos.movie_id = vt.video_id
+                        WHERE tag_id='$id' 
+                        ORDER BY RAND()
+                        LIMIT 1";
+
+            $result = $conn->query($query);
+            $r = mysqli_fetch_assoc($result);
+
+            echo $r['thumbnail'];
+
+            break;
+    }
+}