From 60d2a676203040f4a668802f67c040ed661713ec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zden=C4=9Bk=20Borovec?= <zdenda.borovec@gmail.com>
Date: Mon, 6 May 2024 20:20:57 +0200
Subject: [PATCH] focus comment after posting

---
 docs/www/blog/article.php | 32 ++++++++++++++++++++++++--------
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/docs/www/blog/article.php b/docs/www/blog/article.php
index c5a2ad0..5f16bad 100644
--- a/docs/www/blog/article.php
+++ b/docs/www/blog/article.php
@@ -19,7 +19,7 @@ class BlogpostComment
 	 */
 	public function display_comment() {
 		printf("
-			<div class=\"comment\">
+			<div class=\"comment\" id=\"comment-%s\">
 				<div class=\"comment-own-wrapper\">
 					<span class=\"comment-author\"> By: %s </span>
 					<span class=\"comment-date\"> On: %s </span>
@@ -45,7 +45,9 @@ class BlogpostComment
 				</div>
 				<div class=\"comment-child-wrapper\">
 ",
-			$this->poster_name, date("Y-m-d H:i", strtotime($this->timestamp)),
+			$this->comment_id,
+			$this->poster_name,
+			date("Y-m-d H:i", strtotime($this->timestamp)),
 			$this->comment_id,
 			$this->comment_id,
 			$this->content,
@@ -232,15 +234,27 @@ class Blogpost
  * If the poster is not signed in, send "NULL" (as a string) as the $posterID
  * The same goes for $parentId (that is the parent comment,
  * if this one is a response)
- * Returns: error message string or null on success.
+ * Returns: GUID PK of the newly added comment.
  */
 function send_comment($conn, $blogId, $posterId, $content, $parentId) {
+	// If content is empty, do not post
+	if(empty($content)) {
+		return "";
+	}
+
+	// Get a uuid for the comment
+	$stmt = $conn->prepare("SELECT UUID()");
+	$stmt->execute();
+	$result = $stmt->fetch(PDO::FETCH_ASSOC);
+	$uuid = $result["UUID()"];
+
 	// Prepare the statemtnt
 	$stmt = $conn->prepare("INSERT INTO blogpost_comments
-		( parent_id,  blogpost_id,  poster_id,  content) VALUES
-		(:parent_id, :blogpost_id, :poster_id, :content);");
+		( comment_id,  parent_id,  blogpost_id,  poster_id,  content) VALUES
+		(:comment_id, :parent_id, :blogpost_id, :poster_id, :content);");
 
 	// Bind all the parameters
+	$stmt->bindValue(":comment_id", $uuid, PDO::PARAM_STR);
 	$stmt->bindValue(":parent_id", $parentId == "NULL"
 		? NULL : $parentId, PDO::PARAM_STR);
 	$stmt->bindValue(":blogpost_id", $blogId, PDO::PARAM_STR);
@@ -251,7 +265,7 @@ function send_comment($conn, $blogId, $posterId, $content, $parentId) {
 	// Execute the statement
 	$stmt->execute();
 
-	return null;
+	return $uuid;
 }
 
 /**
@@ -378,10 +392,12 @@ if(isset($_POST["submit"])) {
 	$posterId = isset($_SESSION["current_user"]) ? $_SESSION["current_user"]->user_id : "NULL";
 
 	// Try to send the comment
-	send_comment($conn, $blogId, $posterId, $commentContent, $parentId);
+	$commentId = send_comment($conn, $blogId, $posterId,
+							$commentContent, $parentId);
 
 	// Redirect to this page with GET
-	header("Location: http://www.zdenekborovec-dev.cz/blog/article?guid=".$blogId);
+	header("Location: http://www.zdenekborovec-dev.cz/blog/article?guid=".
+		$blogId."#comment-".$commentId);
 }
 
 // Get the blog id.