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<?php |
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namespace App\Models; |
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use Core\Model; |
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use Core\Container; |
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use Core\Constant; |
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use HTMLPurifier; |
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use HTMLPurifier_Config; |
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class CommentModel extends Model{ |
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private $commentTbl; |
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private $userTbl; |
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private $postTbl; |
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public function __construct(Container $container) |
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{ |
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parent::__construct($container); |
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$this->commentTbl = $this->getTablePrefix("comments"); |
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$this->userTbl = $this->getTablePrefix("users"); |
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$this->postTbl = $this->getTablePrefix("posts"); |
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} |
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/** |
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* the base Select SQl |
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* @return string |
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*/ |
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private function baseSql():string |
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{ |
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$sql = " |
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SELECT idcomments, users_idusers, posts_idposts, comment, approved, comment_date, idposts, title, posts_slug, idusers, username, avatar |
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FROM $this->commentTbl |
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LEFT JOIN $this->postTbl ON $this->commentTbl.posts_idposts = $this->postTbl.idposts |
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LEFT JOIN $this->userTbl ON $this->commentTbl.users_idusers = $this->userTbl.idusers |
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"; |
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return $sql; |
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} |
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/** |
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* secure the HTML thanks to HTML Purifier |
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* @param $dirtyHtml |
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* @return string |
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*/ |
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private function purifyHtml($dirtyHtml):string |
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{ |
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$config = HTMLPurifier_Config::createDefault(); |
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$purifier = new HTMLPurifier($config); |
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return $purifier->purify($dirtyHtml); |
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} |
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/** |
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* Count the number of comments on a post |
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* @param int $postId |
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* @return int |
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* @throws \Exception |
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*/ |
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public function countCommentsOnPost(int $postId): int |
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{ |
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$sql = "SELECT COUNT(*) FROM $this->commentTbl WHERE posts_idposts = :postId"; |
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$this->query($sql); |
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$this->bind(":postId", $postId); |
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$this->execute(); |
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return $this->stmt->fetchColumn(); |
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} |
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/** |
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* the list of comments on a post with limit and offset |
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* @param int $postId |
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* @param int $offset |
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* @param int $limit |
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* @return array |
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* @throws \Exception |
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*/ |
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public function getCommentsListOnPost(int $postId, int $offset = 0, int $limit = Constant::COMMENTS_PER_PAGE):array |
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{ |
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$sql = $this->baseSql(); |
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$sql .= " |
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WHERE approved = 1 |
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AND posts_idposts = :postId |
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LIMIT :limit OFFSET :offset |
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"; |
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$this->query($sql); |
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$this->bind(":limit", $limit); |
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$this->bind(":offset", $offset); |
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$this->bind(":postId", $postId); |
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$this->execute(); |
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return $this->fetchAll(); |
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} |
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/** |
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* count the number of pending comments |
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* @return mixed |
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* @throws \Exception |
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*/ |
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public function countPendingComments():int |
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{ |
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$sql = "SELECT COUNT(*) FROM $this->commentTbl WHERE approved = 0"; |
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$this->query($sql); |
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$this->execute(); |
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return $this->stmt->fetchColumn(); |
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} |
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/** |
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* get the list of pending comments with limit and offset |
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* @param int $offset |
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* @param int $limit |
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* @return array |
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* @throws \Exception |
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*/ |
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public function getPendingCommentsList(int $offset = 0, int $limit = Constant::COMMENTS_PER_PAGE):array |
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{ |
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$sql = $this->baseSql(); |
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$sql .= " |
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WHERE approved = 0 |
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LIMIT :limit OFFSET :offset |
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"; |
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$this->query($sql); |
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$this->bind(":limit", $limit); |
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$this->bind(":offset", $offset); |
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$this->execute(); |
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return $this->fetchAll(); |
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} |
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/** |
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* counts all the comments |
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* @return int |
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* @throws \Exception |
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*/ |
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public function countComments(): int |
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{ |
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return $this->count($this->commentTbl); |
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} |
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/** |
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* get the list of all the comments |
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* @param int $offset |
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* @param int $limit |
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* @return array |
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* @throws \Exception |
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*/ |
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public function getCommentsList(int $offset = 0, int $limit = Constant::POSTS_PER_PAGE):array |
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{ |
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$sql = $this->baseSql(); |
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$sql .= " |
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LIMIT :limit OFFSET :offset |
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"; |
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$this->query($sql); |
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$this->bind(":limit", $limit); |
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$this->bind(":offset", $offset); |
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$this->execute(); |
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return $this->fetchAll(); |
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} |
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/** |
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* Add a comment to a post |
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* @param int $postId |
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* @param int $userId |
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* @param string $comment |
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* @param bool $admin |
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* @return int |
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* @throws \Exception |
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*/ |
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public function addComment(int $postId, int $userId, string $comment, bool $admin=false):int |
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{ |
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$comment = $this->purifyHtml($comment); |
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$sql=" |
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INSERT INTO $this->commentTbl (users_idusers, posts_idposts, comment, approved, comment_date) |
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VALUES (:userId, :postId, :comment, :approved, NOW()) |
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"; |
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$this->query($sql); |
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$this->bind(':userId', $userId); |
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$this->bind(':postId', $postId); |
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$this->bind(':comment', $comment); |
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$this->bind(':approved', $admin); |
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$this->execute(); |
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return (int)$this->dbh->lastInsertId(); |
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} |
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/** |
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* delete a comment by it's ID |
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* @param int $commentId |
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* @return bool |
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* @throws \Exception |
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*/ |
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public function delete(int $commentId):bool |
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{ |
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$sql = " |
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DELETE FROM $this->commentTbl |
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WHERE idcomments = :commentId |
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"; |
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$this->query($sql); |
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$this->bind(":commentId", $commentId); |
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return $this->finalExecute(); |
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} |
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/** |
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* Update an existing comment |
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* @param int $commentId |
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* @param string $comment |
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* @param bool $approved |
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* @return bool |
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* @throws \Exception |
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*/ |
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public function update(int $commentId, string $comment, bool $approved):bool |
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{ |
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$comment = $this->purifyHtml($comment); |
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$sql=" |
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UPDATE $this->commentTbl |
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SET |
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comment = :comment, |
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approved = :state |
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WHERE |
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idcomments = :commentId |
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"; |
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$this->query($sql); |
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$this->bind(":commentId", $commentId); |
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$this->bind(":comment", $comment); |
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$this->bind(":state", $approved); |
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return $this->finalExecute(); |
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} |
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/** |
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* get a comment from it's ID |
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* @param int $commentId |
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* @return mixed |
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* @throws \Exception |
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*/ |
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public function getCommentById(int $commentId) |
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{ |
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$sql = $this->baseSql(); |
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$sql .= " |
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WHERE idcomments = :commentId |
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"; |
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$this->query($sql); |
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$this->bind(':commentId', $commentId); |
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$this->execute(); |
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return $this->fetch(); |
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} |
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/** |
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* Set the approved state |
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* @param bool $state |
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* @param int $commentId |
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* @return bool |
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* @throws \Exception |
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*/ |
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public function setApproved(bool $state, int $commentId):bool |
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{ |
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$sql = " |
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UPDATE $this->commentTbl |
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SET |
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approved = :state |
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WHERE |
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idcomments = :commentId |
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"; |
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$this->query($sql); |
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$this->bind(":commentId", $commentId); |
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$this->bind(":state", $state); |
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return $this->finalExecute(); |
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} |
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} |