From 524dc2a399abd3ec2feb196df728c792b6e00fcc Mon Sep 17 00:00:00 2001 From: NOrtmann1 Date: Fri, 5 Jun 2026 09:57:34 +0200 Subject: [PATCH] DataBaseArticleManager + Methoden search-Methode muss noch implementiert werden... --- .../315cb5c9-2b0f-435b-b602-59823b160908.xml | 1833 +++++++++++++++++ .../storage_v2/_src_/schema/main.uQUzAA.meta | 2 + .../a0abcd0a-1d6f-40e4-88be-f442bcb431ba.xml | 1833 +++++++++++++++++ .../storage_v2/_src_/schema/main.uQUzAA.meta | 2 + .idea/dataSources/data_sources_history.xml | 42 + db/articles | 0 php/model/ArticleManagerDAO.php | 19 +- php/model/DatabaseArticleManager.php | 306 +++ php/model/LocalArticleManager.php | 1 + 9 files changed, 4028 insertions(+), 10 deletions(-) create mode 100644 .idea/dataSources/315cb5c9-2b0f-435b-b602-59823b160908.xml create mode 100644 .idea/dataSources/315cb5c9-2b0f-435b-b602-59823b160908/storage_v2/_src_/schema/main.uQUzAA.meta create mode 100644 .idea/dataSources/a0abcd0a-1d6f-40e4-88be-f442bcb431ba.xml create mode 100644 .idea/dataSources/a0abcd0a-1d6f-40e4-88be-f442bcb431ba/storage_v2/_src_/schema/main.uQUzAA.meta create mode 100644 .idea/dataSources/data_sources_history.xml create mode 100644 db/articles create mode 100644 php/model/DatabaseArticleManager.php diff --git a/.idea/dataSources/315cb5c9-2b0f-435b-b602-59823b160908.xml b/.idea/dataSources/315cb5c9-2b0f-435b-b602-59823b160908.xml new file mode 100644 index 0000000..4fccad1 --- /dev/null +++ b/.idea/dataSources/315cb5c9-2b0f-435b-b602-59823b160908.xml @@ -0,0 +1,1833 @@ + + + + + 3.51.1 + + + + + + + + + + + + + + + 1 + + + 1 + + + 1 + + + 1 + + + 1 + + + 1 + + + 1 + + + 1 + + + 1 + + + 1 + + + + window + + + 1 + + + 1 + + + 1 + + + + 1 + 1 + + + + + 1 + 1 + + + 1 + 1 + + + 1 + 1 + + + 1 + + + 1 + + + + + window + + + window + + + window + + + + + + 1 + 1 + + + 1 + 1 + + + 1 + + + window + + + + 1 + + + window + + + 1 + + + 1 + 1 + + + + + + 1 + + + + + 1 + + + 1 + + + window + + + window + + + 1 + + + 1 + + + 1 + 1 + + + 1 + + + 1 + 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+ + 1 + TEXT|0s + + + 2 + TEXT|0s + + + 3 + TEXT|0s + + + 4 + INT|0s + + + 5 + TEXT|0s + + + \ No newline at end of file diff --git a/.idea/dataSources/315cb5c9-2b0f-435b-b602-59823b160908/storage_v2/_src_/schema/main.uQUzAA.meta b/.idea/dataSources/315cb5c9-2b0f-435b-b602-59823b160908/storage_v2/_src_/schema/main.uQUzAA.meta new file mode 100644 index 0000000..8dab49c --- /dev/null +++ b/.idea/dataSources/315cb5c9-2b0f-435b-b602-59823b160908/storage_v2/_src_/schema/main.uQUzAA.meta @@ -0,0 +1,2 @@ +#n:main +! 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+ + 1 + TEXT|0s + + + 2 + TEXT|0s + + + 3 + TEXT|0s + + + 4 + INT|0s + + + 5 + TEXT|0s + + + \ No newline at end of file diff --git a/.idea/dataSources/a0abcd0a-1d6f-40e4-88be-f442bcb431ba/storage_v2/_src_/schema/main.uQUzAA.meta b/.idea/dataSources/a0abcd0a-1d6f-40e4-88be-f442bcb431ba/storage_v2/_src_/schema/main.uQUzAA.meta new file mode 100644 index 0000000..8dab49c --- /dev/null +++ b/.idea/dataSources/a0abcd0a-1d6f-40e4-88be-f442bcb431ba/storage_v2/_src_/schema/main.uQUzAA.meta @@ -0,0 +1,2 @@ +#n:main +! [0, 0, null, null, -2147483648, -2147483648] diff --git a/.idea/dataSources/data_sources_history.xml b/.idea/dataSources/data_sources_history.xml new file mode 100644 index 0000000..3f0c640 --- /dev/null +++ b/.idea/dataSources/data_sources_history.xml @@ -0,0 +1,42 @@ + + + + + " + + + sqlite.xerial + true + org.sqlite.JDBC + jdbc:sqlite:$PROJECT_DIR$/db/articles + master_key + no-auth + + + + + + $ProjectFileDir$ + + + + + + " + + + sqlite.xerial + true + org.sqlite.JDBC + jdbc:sqlite:$PROJECT_DIR$/db/articles + master_key + no-auth + + + + + + $ProjectFileDir$ + + + \ No newline at end of file diff --git a/db/articles b/db/articles new file mode 100644 index 0000000..e69de29 diff --git a/php/model/ArticleManagerDAO.php b/php/model/ArticleManagerDAO.php index d33df23..01826e1 100644 --- a/php/model/ArticleManagerDAO.php +++ b/php/model/ArticleManagerDAO.php @@ -20,8 +20,7 @@ interface ArticleManagerDAO * @param $category string Kategorie des Beitrages * @param $tags string optionale Schlagworte für eine bessere Suche * - * Mögliche Exceptions: - * TODO: Exceptions implementieren. + * @throws InternalServerErrorException */ public function addArticle($title, $content, $author, $category, $tags); @@ -37,16 +36,17 @@ interface ArticleManagerDAO * @throws InternalServerErrorException * @throws NotFoundException * @throws UnauthorizedAccessException - * / */ public function updateArticle($id, $article, $author); /** * Löscht einen Beitrag aus übergebener ID. + * TODO: sollte auch die Autorisierung prüfen... * @param $id * @return void - * - * TODO: Exceptions implementieren. + * @throws InternalServerErrorException + * @throws NotFoundException + * @throws UnauthorizedAccessException */ public function deleteArticle($id); @@ -55,16 +55,14 @@ interface ArticleManagerDAO * $id ID des Beitrags * * @return Article - * Mögliche Exceptions: - * TODO: Exceptions implementieren. + * @throws InternalServerErrorException */ public function getArticle($id); /** * Alle Beiträge aufrufen. * - * Mögliche Exceptions: - * TODO: Exceptions implementieren. + * @throws InternalServerErrorException */ public function getAllArticles(); @@ -72,7 +70,7 @@ interface ArticleManagerDAO * Gibt alle Beiträge eines Nutzer mit einer gegebenen ID aus. * @param $author * @return Article[] - * TODO: Exceptions implementieren. + * @throws InternalServerErrorException */ public function getArticlesByAuthor($author); @@ -89,6 +87,7 @@ interface ArticleManagerDAO * Gibt alle Beiträge einer gegebenen Kategorie aus. * @param $category * @return mixed + * @throws InternalServerErrorException */ public function getArticlesByCategory($category); diff --git a/php/model/DatabaseArticleManager.php b/php/model/DatabaseArticleManager.php new file mode 100644 index 0000000..8eb1fed --- /dev/null +++ b/php/model/DatabaseArticleManager.php @@ -0,0 +1,306 @@ +exec(" + CREATE TABLE articles ( + id INTEGER PRIMARY KEY AUTOINCREMENT, + title TEXT, + content TEXT, + author TEXT, + category TEXT, + tags TEXT, + created TIMESTAMP DEFAULT CURRENT_TIMESTAMP + );"); + unset($db); + } catch (PDOException $e) { + throw new InternalServerErrorException($e->getMessage()); + } + } + } + + /** + * Baut die Verbindung zur Datenbank auf. + * @throws InternalServerErrorException + */ + private function getConnection() + { + try { + $user = 'root'; + $pw = null; + $dsn = 'sqlite: ../../db/gaestebuch.db'; + return new PDO($dsn, $user, $pw); + } catch (PDOException $e) { + throw new InternalServerErrorException($e->getMessage()); + } + } + + /** + * Gibt die DatabaseArticleManager-Instanz zurück. + * @return DatabaseArticleManager + */ + public static function getInstance() + { + if (self::$instance == null) { + self::$instance = new DatabaseArticleManager(); + } + return self::$instance; + } + + public function addArticle($title, $content, $author, $category, $tags) + { + try { + $db = $this->getConnection(); + + $sql = "INSERT INTO articles (title, content, author, category, tags) + VALUES (:title, :content, :author, :category, :tags);"; + + $command = $db->prepare($sql); + if (!$command) { + throw new InternalServerErrorException("internal_error"); + } + + // Verknüpft die übergebenen Parameter exakt mit den SQL-Platzhaltern + $success = $command->execute([ + ":title" => $title, + ":content" => $content, + ":author" => $author, + ":category" => $category, + ":tags" => $tags + ]); + + if (!$success) { + throw new InternalServerErrorException("internal_error"); + } + + return intval($db->lastInsertId()); + + } catch (PDOException $e) { + throw new InternalServerErrorException($e->getMessage()); + } + } + + public function updateArticle($id, $article, $author) + { + if (empty($article)) { + throw new InternalServerErrorException("internal_error"); + } + + // Berechtigungsprüfung analog zur lokalen Implementierung: + if ($article->getAuthor() !== $author) { + throw new UnauthorizedAccessException("unauthorized_access"); + } + + try { + $db = $this->getConnection(); + + $sql = "UPDATE articles + SET title = :title, content = :content, author = :author, category = :category, tags = :tags + WHERE id = :id;"; + + $command = $db->prepare($sql); + if (!$command) { + throw new InternalServerErrorException("internal_error"); + } + + $success = $command->execute([ + ":id" => $id, + ":title" => $article->getTitle(), + ":content" => $article->getContent(), + ":author" => $author, + ":category" => $article->getCategory(), + ":tags" => $article->getTags() + ]); + + // rowCount() prüft, ob eine Zeile mit dieser ID existierte und geändert werden konnte + if (!$success || $command->rowCount() === 0) { + // Falls die ID nicht existiert, prüfen wir, ob sie überhaupt da ist + if (!$this->getArticle($id)) { + throw new NotFoundException("missing_id"); + } + } + } catch (PDOException $e) { + throw new InternalServerErrorException("internal_error"); + } + } + + public function deleteArticle($id) + { + // TODO: Sollte auch die Autorisierung prüfen... + try { + $db = $this->getConnection(); + $sql = "DELETE FROM articles WHERE id = :id;"; + + $command = $db->prepare($sql); + if (!$command) { + throw new InternalServerErrorException("internal_error"); + } + + if (!$command->execute([":id" => $id])) { + throw new InternalServerErrorException("internal_error"); + } + } catch (PDOException $exc) { + throw new InternalServerErrorException("internal_error"); + } + } + + public function getArticle($id) + { + try { + $db = $this->getConnection(); + $sql = "SELECT * FROM articles WHERE id = :id;"; + + $command = $db->prepare($sql); + if (!$command) { + throw new InternalServerErrorException("internal_error"); + } + + $command->execute([":id" => $id]); + $row = $command->fetch(PDO::FETCH_ASSOC); + + if ($row) { + return new Article( + intval($row['id']), + $row['title'], + $row['content'], + $row['author'], + $row['category'], + $row['tags'], + $row['created'] + ); + } + + return null; + } catch (PDOException $e) { + throw new InternalServerErrorException("internal_error"); + } + } + + public function getAllArticles() + { + try { + $db = $this->getConnection(); + $sql = "SELECT * FROM articles;"; + + $command = $db->query($sql); + if (!$command) { + throw new InternalServerErrorException("internal_error"); + } + + $rows = $command->fetchAll(PDO::FETCH_ASSOC); + $articles = []; + + foreach ($rows as $row) { + $articles[] = new Article( + intval($row['id']), + $row['title'], + $row['content'], + $row['author'], + $row['category'], + $row['tags'], + $row['created'] + ); + } + + return $articles; + } catch (PDOException $e) { + throw new InternalServerErrorException("internal_error"); + } + } + + public function getArticlesByAuthor($author) + { + try { + $db = $this->getConnection(); + $sql = "SELECT * FROM articles WHERE author = :author;"; + + $command = $db->prepare($sql); + if (!$command) { + throw new InternalServerErrorException("internal_error"); + } + + $command->execute([":author" => $author]); + $rows = $command->fetchAll(PDO::FETCH_ASSOC); + $filteredArticles = []; + + foreach ($rows as $row) { + $filteredArticles[] = new Article( + intval($row['id']), + $row['title'], + $row['content'], + $row['author'], + $row['category'], + $row['tags'], + $row['created'] + ); + } + + return $filteredArticles; + } catch (PDOException $e) { + throw new InternalServerErrorException("internal_error"); + } + } + + public function getArticlesByCategory($category) + { + try { + $db = $this->getConnection(); + $sql = "SELECT * FROM articles WHERE category = :category;"; + + $command = $db->prepare($sql); + if (!$command) { + throw new InternalServerErrorException("internal_error"); + } + + $command->execute([":category" => $category]); + $rows = $command->fetchAll(PDO::FETCH_ASSOC); + $filteredArticles = []; + + foreach ($rows as $row) { + $filteredArticles[] = new Article( + intval($row['id']), + $row['title'], + $row['content'], + $row['author'], + $row['category'], + $row['tags'], + $row['created'] + ); + } + + return $filteredArticles; + } catch (PDOException $exc) { + throw new InternalServerErrorException("internal_error"); + } + } + + public function search(string $keyword): array + { + // TODO: implement search() + return []; + } + +} \ No newline at end of file diff --git a/php/model/LocalArticleManager.php b/php/model/LocalArticleManager.php index 2ee8ce9..62879e9 100644 --- a/php/model/LocalArticleManager.php +++ b/php/model/LocalArticleManager.php @@ -104,6 +104,7 @@ class LocalArticleManager implements ArticleManagerDAO { public function deleteArticle($id) { + // TODO: Sollte auch die Autorisierung prüfen... $articles = $this->getAllArticles(); $articleFound = false;