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980df0cf06
...
8dd55ce016
2 changed files with 572 additions and 2 deletions
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@ -37,8 +37,6 @@ Anyways, let's get to the *how*.
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- Also make sure that the directory /assets/uploads/ exists and php has write
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permissions there - if you are going to use that file upload
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functionality, that is.
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- The directory /docs/www/blog/article should also be created with
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the above permissions.
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- Php should also have write permissions in the docs/www/blog directory,
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so it can update the atom feed.
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- If you have problems connecting to the database, you can try
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|
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572
docs/www/blog/article.php
Normal file
572
docs/www/blog/article.php
Normal file
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@ -0,0 +1,572 @@
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<?php
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$COMMONS = $_SERVER['DOCUMENT_ROOT'] . "/../common";
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include_once($COMMONS."/header.php");
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class BlogpostComment
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{
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public $comment_id;
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public $blogpost_id;
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public $blogpost_addr;
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public $poster_id;
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public $poster_name;
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public $parent_id;
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public $timestamp;
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public $content;
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public $children;
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/**
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* Display the comment, and recursively it's children
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*/
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public function display_comment() {
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if(is_null($this->blogpost_addr)) {
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printf("
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<div class=\"comment\" id=\"comment-%s\">
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<div class=\"comment-own-wrapper\">
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<span class=\"comment-author\"> By: %s </span>
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<span class=\"comment-date\"> On: %s </span>
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<label for=\"reveal-response-%s\" class=\"checkbox-button\">
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Respond
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</label>
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<input type=\"checkbox\" id=\"reveal-response-%s\"
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style=\"display: none;\">
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<hr>
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<div class=\"comment-content\">
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%s
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</div>
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<div class=\"comment-response\">
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<form method=\"post\" action=\"%s\">
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<input type=\"hidden\" name=\"blogpost_id\" value=\"%s\">
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<input type=\"hidden\" name=\"comment_id\" value=\"%s\">
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<label for=\"comment_entry\">Write response:</label>
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<div class=\"centered-container\">
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<textarea name=\"comment_entry\"
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class=\"comment-box\"></textarea>
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</div>
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<input name=\"submit\" type=\"submit\" value=\"Send\">
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</form>
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</div>
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</div>
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<div class=\"comment-child-wrapper\">
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",
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$this->comment_id,
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$this->poster_name,
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date("Y-m-d H:i", strtotime($this->timestamp)),
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$this->comment_id,
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$this->comment_id,
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$this->content,
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htmlspecialchars($_SERVER["PHP_SELF"]),
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$this->blogpost_id,
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$this->comment_id);
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}
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else {
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printf("
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<div class=\"comment\" id=\"comment-%s\">
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<div class=\"comment-own-wrapper\">
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<span class=\"comment-author\"> By: %s </span>
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<span class=\"comment-date\"> On: %s </span>
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<label for=\"reveal-response-%s\" class=\"checkbox-button\">
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Respond
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</label>
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<input type=\"checkbox\" id=\"reveal-response-%s\"
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style=\"display: none;\">
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<hr>
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<div class=\"comment-content\">
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%s
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</div>
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<div class=\"comment-response\">
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<form method=\"post\" action=\"%s\">
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<input type=\"hidden\" name=\"blogpost_id\" value=\"%s\">
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<input type=\"hidden\" name=\"address\" value=\"%s\">
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<input type=\"hidden\" name=\"comment_id\" value=\"%s\">
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<label for=\"comment_entry\">Write response:</label>
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<div class=\"centered-container\">
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<textarea name=\"comment_entry\"
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class=\"comment-box\"></textarea>
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</div>
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<input name=\"submit\" type=\"submit\" value=\"Send\">
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</form>
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</div>
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</div>
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<div class=\"comment-child-wrapper\">
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",
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$this->comment_id,
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$this->poster_name,
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date("Y-m-d H:i", strtotime($this->timestamp)),
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$this->comment_id,
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$this->comment_id,
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$this->content,
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htmlspecialchars($_SERVER["PHP_SELF"]),
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$this->blogpost_id,
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$this->blogpost_addr,
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$this->comment_id);
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}
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if($this->children != null) {
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for($i = 0; $i < count($this->children); $i++)
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{
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$child = $this->children[$i];
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$child->display_comment();
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}
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}
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printf("</div></div>");
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}
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/**
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* Load the child comments to this comment, and recursively their children.
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*/
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public function load_children($conn) {
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// Prepare new statement for selecting all the child comments.
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$stmt = $conn->prepare("SELECT comment_id, poster_id, timestamp,
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content FROM blogpost_comments WHERE blogpost_id = :blogpost_id AND
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parent_id = :comment_id ORDER BY timestamp ASC;");
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// Bind and execute the comment select
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$stmt->bindParam(":blogpost_id", $this->blogpost_id);
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$stmt->bindParam(":comment_id", $this->comment_id);
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$stmt->execute();
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// Fetch the comments
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$results_arr = $stmt->fetchall(PDO::FETCH_ASSOC);
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$comments_arr = [];
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// Prepare comment author selection statement
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$stmt = $conn->prepare("SELECT username FROM users WHERE
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user_id = :user_id;");
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// Recursively fetch all the child comments
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for($i = 0; $i < count($results_arr); $i++) {
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$com = $results_arr[$i];
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// If comment has a registered author, fetch their name
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if($com["poster_id"]) {
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$stmt->bindParam(":user_id", $com["poster_id"]);
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$stmt->execute();
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$result = $stmt->fetch(PDO::FETCH_ASSOC);
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// If user was erased from database, set name to [Deleted]
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if(!$result) {
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$username = "[Deleted]";
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}
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else {
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$username = $result["username"];
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}
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}
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else {
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$username = "[Guest]";
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}
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$commentObj = new BlogpostComment($com["comment_id"],
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$com["poster_id"], $username, $this->blogpost_id,
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$this->blogpost_addr, $com["timestamp"], $com["content"],
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$this->comment_id);
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$comments_arr[] = $commentObj;
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$commentObj->load_children($conn);
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}
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$this->children = $comments_arr;
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}
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/**
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* Constructor for the BlogpostComment object.
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* $comment_id GUID of the comment.
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* $poster_id GUID of the comment author.
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* $poster_name Name of the comment author.
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* $blogpost_id GUID of the blogpost this comment is under.
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* $blogpost_addr Human-readable address of the blogpost this
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comment is under.
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* $timestamp Timestamp at comment creation.
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* $content Content of the comment.
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* $parent_id GUID of the comment this is a reply to (or NULL).
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*/
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public function __construct($comment_id, $poster_id, $poster_name,
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$blogpost_id, $blogpost_address, $timestamp, $content, $parent_id) {
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$this->comment_id = $comment_id;
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$this->blogpost_id = $blogpost_id;
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$this->blogpost_addr = $blogpost_address;
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$this->poster_id = $poster_id;
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$this->poster_name = $poster_name;
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$this->timestamp = $timestamp;
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$this->content = $content;
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$this->parent_id = $parent_id;
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}
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}
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class Blogpost
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{
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public $blogpost_id;
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public $address;
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public $title;
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public $content;
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public $date_posted;
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public $date_edited;
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public $tags;
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public $comments;
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/**
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* Display the article, or a warning message.
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*/
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public function display_article(){
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// If a blog with given ID was not found display warning message.
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if(!$this->title){
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printf("
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<article>
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<h2> Article not found </h2>
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<hr>
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<p>
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I am sorry, but I couldn't find an article with this ID.
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</p>
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</article>
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");
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return;
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}
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if (isset($_COOKIE["PHPSESSID"]) &&
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(bool)($_SESSION["current_user"]->permissions & 128)) {
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$topRight = sprintf("<td class=\"blog-publish-date\">
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<a href=\"http://www.zdenekborovec-dev.cz/blog/writearticle/
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?guid=%s\">Edit</a></td>", $this->blogpost_id);
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}
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else {
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$topRight = sprintf("<td class=\"blog-publish-date\">
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Published on: %s</td>",
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date("Y-m-d", strtotime($this->date_posted)));
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}
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// Display the blog title and metadata
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printf("<article>");
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print_r("<table class=\"noborder-table\" style=\"width: 100%;
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margin-top: 16px;\">");
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printf("<tr><td style=\"padding: 0px;\"><h2 style=\"margin-top: 0px;\">
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%s</h2></td>%s</tr><tr><td class=\"blog-tags\">",
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$this->title, $topRight);
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// Display tags
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for($i = 0; $i < count($this->tags); $i++) {
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$tag = $this->tags[$i];
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printf("
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<span class=\"blog-tag\" style=\"background-color: %s\">
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%s
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</span>", $tag["color"], $tag["name"]);
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}
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// Display publish date and end metadata div
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printf("</td><td class=\"blog-publish-date\">Last edited on: %s</td>
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</tr></table>", date("Y-m-d", strtotime($this->date_edited)));
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// Display hrule, article content and end the article
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printf("</article><hr><article>%s</article>", $this->content);
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}
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/**
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* Display the comments for this post and their children.
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*/
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public function display_comments(){
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printf("<article>");
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for($i = 0; $i < count($this->comments); $i++){
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$this->comments[$i]->display_comment();
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}
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printf("</article>");
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}
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/**
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* Constructor for the blogpost.
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* $blogpost_id GUID of the blogpost in the database.
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* $address Readable address of the blogpost.
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* $title Title of the blogpost.
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* $content Content of the blogpost article.
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* $date_posted Timestamp at publishing of article.
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* $date_edited Timestamp at whioch the article was last edited.
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* $tags Array of the tags this article has.
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* $comments Array of Blogpostcomment objects,
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* the comments of this article.
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||||
*/
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public function __construct($blogpost_id, $address, $title,
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||||
$content, $date_posted, $date_edited, $tags, $comments){
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||||
$this->blogpost_id = $blogpost_id;
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$this->address = $address;
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||||
$this->title = $title;
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||||
$this->content = $content;
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$this->date_posted = $date_posted;
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||||
$this->date_edited = $date_edited;
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||||
$this->tags = $tags;
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||||
$this->comments = $comments;
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||||
}
|
||||
}
|
||||
|
||||
/**
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||||
* Send a comment to the database.
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||||
* If the poster is not signed in, send "NULL" (as a string) as the $posterID
|
||||
* The same goes for $parentId (that is the parent comment,
|
||||
* if this one is a response)
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||||
* Returns: GUID PK of the newly added comment.
|
||||
*/
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||||
function send_comment($conn, $blogId, $posterId, $content, $parentId) {
|
||||
// If content is empty, do not post
|
||||
if(empty($content)) {
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||||
return "";
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||||
}
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||||
|
||||
// Get a uuid for the comment
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||||
$stmt = $conn->prepare("SELECT UUID()");
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$stmt->execute();
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||||
$result = $stmt->fetch(PDO::FETCH_ASSOC);
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||||
$uuid = $result["UUID()"];
|
||||
|
||||
// Prepare the statemtnt
|
||||
$stmt = $conn->prepare("INSERT INTO blogpost_comments
|
||||
( 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);
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||||
$stmt->bindValue(":parent_id", $parentId == "NULL"
|
||||
? NULL : $parentId, PDO::PARAM_STR);
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||||
$stmt->bindValue(":blogpost_id", $blogId, PDO::PARAM_STR);
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||||
$stmt->bindValue(":poster_id", $posterId == "NULL"
|
||||
? NULL : $posterId, PDO::PARAM_STR);
|
||||
$stmt->bindValue(":content", $content, PDO::PARAM_STR);
|
||||
|
||||
// Execute the statement
|
||||
$stmt->execute();
|
||||
|
||||
return $uuid;
|
||||
}
|
||||
|
||||
/**
|
||||
* Load comments under a given blog.
|
||||
* Returns array of BlogpostComment objects.
|
||||
*/
|
||||
function load_comments($conn, $blogId, $blogAddress) {
|
||||
// Prepare new statement for selecting all the child comments.
|
||||
$stmt = $conn->prepare("SELECT comment_id, poster_id, timestamp,
|
||||
content FROM blogpost_comments WHERE blogpost_id = :blogpost_id
|
||||
AND parent_id IS NULL ORDER BY timestamp ASC;");
|
||||
|
||||
// Bind and execute the comment select
|
||||
$stmt->bindParam(":blogpost_id", $blogId);
|
||||
$stmt->execute();
|
||||
|
||||
// Fetch the comments
|
||||
$results_arr = $stmt->fetchall(PDO::FETCH_ASSOC);
|
||||
$comments_arr = [];
|
||||
|
||||
// Prepare comment author selection statement
|
||||
$stmt = $conn->prepare("SELECT username FROM users WHERE
|
||||
user_id = :user_id;");
|
||||
|
||||
// Recursively fetch all the child comments
|
||||
for($i = 0; $i < count($results_arr); $i++) {
|
||||
$com = $results_arr[$i];
|
||||
|
||||
// If comment has a registered author, fetch their name
|
||||
if($com["poster_id"]) {
|
||||
$stmt->bindParam(":user_id", $com["poster_id"]);
|
||||
|
||||
$stmt->execute();
|
||||
|
||||
$result = $stmt->fetch(PDO::FETCH_ASSOC);
|
||||
|
||||
// If user was erased from database, set name to [Deleted]
|
||||
if(!$result) {
|
||||
$username = "[Deleted]";
|
||||
}
|
||||
else {
|
||||
$username = $result["username"];
|
||||
}
|
||||
}
|
||||
else {
|
||||
$username = "[Guest]";
|
||||
}
|
||||
|
||||
$commentObj = new BlogpostComment($com["comment_id"], $com["poster_id"],
|
||||
$username, $blogId, $blogAddress, $com["timestamp"],
|
||||
$com["content"], NULL);
|
||||
$commentObj->load_children($conn);
|
||||
$comments_arr[] = $commentObj;
|
||||
}
|
||||
|
||||
return $comments_arr;
|
||||
}
|
||||
|
||||
/**
|
||||
* Load info about the blog with a given guid and return corresponding
|
||||
* Blogpost object. NULL if blog couldn't be loaded.
|
||||
*/
|
||||
function load_blog($conn, $blogId){
|
||||
// Prepare and bind statement for gathering blogpost info
|
||||
$stmt = $conn->prepare("SELECT readable_address, title, content,
|
||||
date_posted, date_edited FROM blogposts WHERE
|
||||
blogpost_id = :blogpost_id;");
|
||||
$stmt->bindParam(":blogpost_id", $blogId);
|
||||
|
||||
// Execute the statement
|
||||
$stmt->execute();
|
||||
|
||||
// Fetch the blogpost
|
||||
$result = $stmt->fetch(PDO::FETCH_ASSOC);
|
||||
|
||||
// If no post with given guid was found,
|
||||
// there is no information to gather, return.
|
||||
if(!$result){
|
||||
return null;
|
||||
}
|
||||
|
||||
// Prepare new statement for selecting the tags for a given blogpost
|
||||
$stmt = $conn->prepare("SELECT name, color FROM
|
||||
blogpost_tags INNER JOIN blogpost_has_tag ON
|
||||
blogpost_tags.tag_id = blogpost_has_tag.tag_id WHERE
|
||||
blogpost_id = :blogpost_id;");
|
||||
|
||||
// Bind and execute the tag select
|
||||
$stmt->bindParam(":blogpost_id", $blogId);
|
||||
$stmt->execute();
|
||||
|
||||
// Fetch the tags
|
||||
$tags_arr = $stmt->fetchall(PDO::FETCH_ASSOC);
|
||||
|
||||
// Set the variables
|
||||
$blogTitle = $result["title"];
|
||||
$blogAddress = $result["readable_address"];
|
||||
$blogContent = $result["content"];
|
||||
$datePosted = $result["date_posted"];
|
||||
$dateEdited = $result["date_edited"];
|
||||
$tags = $tags_arr;
|
||||
$comments = load_comments($conn, $blogId, $blogAddress);
|
||||
|
||||
return new Blogpost($blogId, $blogAddress, $blogTitle, $blogContent,
|
||||
$datePosted, $dateEdited, $tags, $comments);
|
||||
}
|
||||
|
||||
// Check DB connection
|
||||
if($conn == null){
|
||||
header($_SERVER["SERVER_PROTOCOL"]." 503 Service Unavailable", true, 503);
|
||||
include_once($_SERVER["DOCUMENT_ROOT"]."/errors/503.php");
|
||||
include_once($COMMONS."/footer.php");
|
||||
die();
|
||||
}
|
||||
|
||||
// If the method is post (user submitted a comment), try to post it,
|
||||
// Refill the appropriate comment sumbmission form and display
|
||||
// error message on error.
|
||||
if(isset($_POST["submit"])) {
|
||||
// Sanitise the user-submitted data
|
||||
$blogId = sanitize_input($_POST["blogpost_id"]);
|
||||
$commentContent = sanitize_input($_POST["comment_entry"]);
|
||||
$parentId = isset($_POST["comment_id"]) ? $_POST["comment_id"] : "NULL";
|
||||
$posterId = isset($_SESSION["current_user"]) ?
|
||||
$_SESSION["current_user"]->user_id : "NULL";
|
||||
$address = isset($_POST["address"]) ?
|
||||
sanitize_input($_POST["address"]) : NULL;
|
||||
|
||||
// Try to send the comment
|
||||
$commentId = send_comment($conn, $blogId, $posterId,
|
||||
$commentContent, $parentId);
|
||||
|
||||
// Redirect to this page with GET
|
||||
if(is_null($address)) {
|
||||
header("Location: http://www.zdenekborovec-dev.cz/blog/".
|
||||
"article?blogpost_id=".$blogId."#comment-".$commentId);
|
||||
}
|
||||
else {
|
||||
header("Location: http://www.zdenekborovec-dev.cz/blog/".
|
||||
"article?address=".$address."#comment-".$commentId);
|
||||
}
|
||||
die();
|
||||
}
|
||||
|
||||
// If a human-readable address was provided, extract appropriate id.
|
||||
if(isset($_GET["address"])) {
|
||||
$blogAddr = sanitize_input($_GET["address"]);
|
||||
|
||||
// Prepare and bind statement for gathering blogpost address
|
||||
$stmt = $conn->prepare("SELECT blogpost_id
|
||||
FROM blogposts WHERE readable_address = :readable_address;");
|
||||
$stmt->bindParam(":readable_address", $blogAddr);
|
||||
|
||||
// Execute the statement
|
||||
$stmt->execute();
|
||||
|
||||
// Fetch the blogpost
|
||||
$result = $stmt->fetch(PDO::FETCH_ASSOC);
|
||||
|
||||
// If post with given address was found, set the $blogId var.
|
||||
if($result){
|
||||
$blogId = sanitize_input($result["blogpost_id"]);
|
||||
}
|
||||
}
|
||||
// If a blogpost id was provided, get it.
|
||||
else if(isset($_GET["blogpost_id"])) {
|
||||
$blogId = sanitize_input($_GET["blogpost_id"]);
|
||||
}
|
||||
|
||||
// Attempt to load the blogpost
|
||||
$blogPost = load_blog($conn, $blogId);
|
||||
|
||||
// If blogpost could not be retieved, display warning and die.
|
||||
if(!$blogPost) {
|
||||
header($_SERVER["SERVER_PROTOCOL"]." 404 Not Foud", true, 404);
|
||||
include_once($_SERVER["DOCUMENT_ROOT"]."/errors/404.php");
|
||||
include_once($COMMONS."/footer.php");
|
||||
die();
|
||||
}
|
||||
|
||||
// Display the header with title being the blog name
|
||||
display_header($blogPost->title);
|
||||
|
||||
// Display the blog
|
||||
$blogPost->display_article();
|
||||
printf("<hr style=\"border-style: solid;\">");
|
||||
|
||||
// Display post comment form.
|
||||
if(is_null($blogPost->address))
|
||||
{
|
||||
printf("
|
||||
<article>
|
||||
<h2> Comments: </h2>
|
||||
<form method=\"post\" action=\"%s\">
|
||||
<input type=\"hidden\" name=\"blogpost_id\" value=\"%s\">
|
||||
<label for=\"comment_entry\">Write a comment (%s):</label>
|
||||
<div class=\"centered-container\">
|
||||
<textarea name=\"comment_entry\" class=\"comment-box\"
|
||||
tabindex=\"1\"></textarea>
|
||||
</div>
|
||||
<input name=\"submit\" type=\"submit\" tabindex=\"2\"
|
||||
value=\"Send\">
|
||||
</form>
|
||||
</article>
|
||||
",
|
||||
htmlspecialchars($_SERVER["PHP_SELF"]), $blogId,
|
||||
isset($_SESSION["current_user"]) ?
|
||||
$_SESSION["current_user"]->user_name : "Guest");
|
||||
}
|
||||
else
|
||||
{
|
||||
printf("
|
||||
<article>
|
||||
<h2> Comments: </h2>
|
||||
<form method=\"post\" action=\"%s\">
|
||||
<input type=\"hidden\" name=\"blogpost_id\" value=\"%s\">
|
||||
<input type=\"hidden\" name=\"address\" value=\"%s\">
|
||||
<label for=\"comment_entry\">Write a comment (%s):</label>
|
||||
<div class=\"centered-container\">
|
||||
<textarea name=\"comment_entry\" class=\"comment-box\"
|
||||
tabindex=\"1\"></textarea>
|
||||
</div>
|
||||
<input name=\"submit\" type=\"submit\" tabindex=\"2\"
|
||||
value=\"Send\">
|
||||
</form>
|
||||
</article>
|
||||
",
|
||||
htmlspecialchars($_SERVER["PHP_SELF"]), $blogId, $blogPost->address,
|
||||
isset($_SESSION["current_user"]) ?
|
||||
$_SESSION["current_user"]->user_name : "Guest");
|
||||
}
|
||||
// Display the blog comments
|
||||
$blogPost->display_comments();
|
||||
|
||||
include_once($COMMONS."/footer.php");
|
||||
?>
|
Loading…
Reference in a new issue