Forum implementiert #34
Generated
+1
-1
@@ -1,6 +1,6 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="dataSourceStorageLocal" created-in="IU-261.24374.151">
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<component name="dataSourceStorageLocal" created-in="IU-253.32098.101">
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<data-source name="articles" uuid="315cb5c9-2b0f-435b-b602-59823b160908">
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<database-info product="SQLite" version="3.51.1" jdbc-version="4.2" driver-name="SQLite JDBC" driver-version="3.51.1.0" dbms="SQLITE" exact-version="3.51.1" exact-driver-version="3.51">
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<identifier-quote-string>"</identifier-quote-string>
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+70
-13
@@ -1,18 +1,31 @@
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<?php
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include_once 'php/controller/showArticle-controller.php';
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require_once 'php/model/CommentManager.php';
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$comments = [];
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if (isset($_GET["id"])) {
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try {
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$commentManager = CommentManager::getInstance();
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$comments = $commentManager->getCommentsByArticle($_GET["id"]);
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} catch (Exception $e) {
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$_SESSION["message"] = "internal_error";
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}
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}
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?>
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<!--
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Seite: Anzeige für Beiträge
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Funktion: Stellt einen übergebenen Beitrag dar.
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-->
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<!-- Hauptcontainer für die Beitragsansicht (Ausschließlich der Content-Bereich) -->
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caroline.slt marked this conversation as resolved
Outdated
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<main class="article-view-container">
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<?php if (isset($_SESSION["message"]) && $_SESSION["message"] == "internal_error"): ?>
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<p class="alert-message is-error">
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Es ist ein interner Fehler aufgetreten. Bitte versuche es erneut.
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</p>
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<?php endif; ?>
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<?php if (isset($_SESSION["message"]) && $_SESSION["message"] == "missing_id"): ?>
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<p class="alert-message is-error">
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Es ist ein Fehler aufgetreten. Die ID konnte nicht ausgelesen werden. Bitte versuche es erneut.
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caroline.slt marked this conversation as resolved
Outdated
niklas.ortmann
commented
Warum werden die Error-Nachrichten gelöscht?! Warum werden die Error-Nachrichten gelöscht?!
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@@ -24,54 +37,59 @@ include_once 'php/controller/showArticle-controller.php';
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Jeder Beitrag muss einen Titel, Kategorie und Inhalt besitzen.
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</p>
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<?php endif; ?>
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<?php if (isset($_SESSION["message"]) && $_SESSION["message"] == "article_updated"): ?>
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<p class="alert-message is-success">
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Dein Beitrag wurde erfolgreich bearbeitet!
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</p>
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<?php endif; ?>
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<?php
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unset($_SESSION["message"]);
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?>
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<!-- Metadaten & Titel -->
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caroline.slt marked this conversation as resolved
Outdated
niklas.ortmann
commented
Warum? Warum?
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<?php unset($_SESSION["message"]); ?>
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<div class="article-view-top-section">
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<?php if (isset($category) && !empty($category)): ?>
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<span class="article-view-category"><?php echo htmlspecialchars($category); ?></span>
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<?php endif; ?>
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<h1 class="article-view-title">
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<?php if (isset($title)) { echo htmlspecialchars($title); } ?>
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</h1>
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<div class="article-view-meta">
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<?php if (isset($author) && !empty($author)): ?>
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<span class="article-view-author">Von: <strong><?php echo htmlspecialchars($author); ?></strong></span>
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<span class="article-view-author">
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Von: <strong><?php echo htmlspecialchars($author); ?></strong>
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</span>
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<?php endif; ?>
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</div>
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</div>
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<!-- Beitrags-Inhalt -->
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<div class="article-view-content">
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<?php if (isset($content)): ?>
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<!-- nl2br für Zeilenumbrüche -->
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caroline.slt marked this conversation as resolved
Outdated
niklas.ortmann
commented
? ?
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<div class="article-view-body"><?php echo nl2br(htmlspecialchars($content)); ?></div>
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<div class="article-view-body">
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<?php echo nl2br(htmlspecialchars($content)); ?>
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</div>
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<?php endif; ?>
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</div>
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<!-- Beitrags-Endbereich (Tags) -->
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caroline.slt marked this conversation as resolved
Outdated
niklas.ortmann
commented
? ?
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<?php if (isset($tags) && !empty($tags)): ?>
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<div class="article-view-bottom-section">
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<div class="article-view-tags-label">Tags:</div>
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<div class="article-view-tags-list">
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<?php
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// Falls $tags ein String ist (z.B. "Web, CSS"), in ein Array umwandeln
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caroline.slt marked this conversation as resolved
Outdated
niklas.ortmann
commented
? ?
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$tagArray = is_array($tags) ? $tags : explode(',', $tags);
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foreach ($tagArray as $tag):
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$trimmedTag = trim($tag);
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if (!empty($trimmedTag)):
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?>
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<span class="article-view-tag-item"><?php echo htmlspecialchars($trimmedTag); ?></span>
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<span class="article-view-tag-item">
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<?php echo htmlspecialchars($trimmedTag); ?>
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</span>
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<?php
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endif;
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endforeach;
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@@ -80,5 +98,44 @@ include_once 'php/controller/showArticle-controller.php';
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</div>
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<?php endif; ?>
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</main>
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<section class="article-comments-section">
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<h2>Kommentare</h2>
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<div id="comments-list">
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<?php if (!empty($comments)): ?>
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<?php foreach ($comments as $comment): ?>
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<div class="comment-item">
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<p>
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<strong><?php echo htmlspecialchars($comment->getAuthor()); ?></strong>
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<span><?php echo htmlspecialchars($comment->getCreated()); ?></span>
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</p>
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<p><?php echo nl2br(htmlspecialchars($comment->getContent())); ?></p>
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</div>
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<?php endforeach; ?>
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<?php else: ?>
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<p>Noch keine Kommentare vorhanden.</p>
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<?php endif; ?>
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</div>
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<?php if (isset($_SESSION["user_email"])): ?>
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<form id="comment-form">
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<input type="hidden"
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name="article_id"
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value="<?php echo htmlspecialchars($_GET["id"] ?? ""); ?>">
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<textarea name="content"
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id="comment-content"
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placeholder="Schreibe einen Kommentar..."
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required></textarea>
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<button type="submit" class="button">
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Kommentar senden
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</button>
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</form>
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<?php else: ?>
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<p>Du musst angemeldet sein, um einen Kommentar zu schreiben.</p>
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<?php endif; ?>
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</section>
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</main>
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@@ -0,0 +1,92 @@
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<?php
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/**
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* Repräsentiert einen Kommentar unter einem Beitrag.
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*
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* Ein Kommentar besteht aus einer eindeutigen ID,
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* der ID des zugehörigen Beitrags, dem Autor,
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* dem Inhalt sowie dem Erstellungsdatum.
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*
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* @author Caroline Schulte
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*/
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class Comment
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{
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private int $id;
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private int $articleId;
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private string $author;
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private string $content;
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private string $created;
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/**
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* Erstellt einen neuen Kommentar.
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*
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* @param int $id Eindeutige ID des Kommentars
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* @param int $articleId ID des zugehörigen Beitrags
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* @param string $author Autor des Kommentars
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* @param string $content Inhalt des Kommentars
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* @param string $created Erstellungsdatum des Kommentars
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*/
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public function __construct(
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int $id,
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int $articleId,
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string $author,
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string $content,
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string $created
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) {
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$this->id = $id;
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$this->articleId = $articleId;
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$this->author = $author;
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$this->content = $content;
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$this->created = $created;
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}
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/**
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* Gibt die ID des Kommentars zurück.
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*
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* @return int Kommentar-ID
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*/
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public function getId(): int
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{
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return $this->id;
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}
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/**
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* Gibt die ID des zugehörigen Beitrags zurück.
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*
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* @return int Beitrags-ID
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*/
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public function getArticleId(): int
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{
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return $this->articleId;
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}
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/**
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* Gibt den Autor des Kommentars zurück.
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*
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* @return string Autor
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*/
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public function getAuthor(): string
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{
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return $this->author;
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}
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/**
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* Gibt den Inhalt des Kommentars zurück.
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*
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* @return string Kommentarinhalt
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*/
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public function getContent(): string
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{
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return $this->content;
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}
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/**
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* Gibt das Erstellungsdatum des Kommentars zurück.
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*
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* @return string Erstellungsdatum
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*/
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public function getCreated(): string
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{
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return $this->created;
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}
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}
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@@ -0,0 +1,25 @@
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<?php
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require_once "DatabaseCommentManager.php";
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/**
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* Zentrale Zugriffsschicht für Kommentare.
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*
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* Die Anwendung arbeitet ausschließlich
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* mit dem CommentManager und kennt die
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* konkrete Speicherimplementierung nicht.
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*
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* @author Caroline Schulte
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*/
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class CommentManager
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{
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/**
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* Gibt die aktive Kommentarverwaltung zurück.
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*
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* @return CommentManagerDAO
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*/
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public static function getInstance()
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{
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return DatabaseCommentManager::getInstance();
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}
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}
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@@ -0,0 +1,40 @@
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<?php
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require_once "Comment.php";
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/**
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* Schnittstelle für die Verwaltung von Kommentaren.
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*
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* Definiert die grundlegenden Methoden zum
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* Speichern und Laden von Kommentaren.
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*
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* @author Caroline Schulte
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*/
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interface CommentManagerDAO
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{
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/**
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* Speichert einen neuen Kommentar zu einem Beitrag.
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*
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* @param int $articleId ID des Beitrags
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* @param string $author Autor des Kommentars
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* @param string $content Inhalt des Kommentars
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*
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* @return void
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*/
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public function addComment(
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$articleId,
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$author,
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$content
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);
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/**
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* Gibt alle Kommentare eines Beitrags zurück.
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*
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* @param int $articleId ID des Beitrags
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*
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* @return Comment[] Liste der Kommentare
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*/
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public function getCommentsByArticle(
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$articleId
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);
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}
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@@ -0,0 +1,173 @@
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<?php
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require_once "CommentManagerDAO.php";
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require_once "Comment.php";
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/**
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* Verwaltet die Speicherung und das Laden von Kommentaren
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* über eine SQLite-Datenbank.
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*
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* @author Caroline Schulte
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*/
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class DatabaseCommentManager implements CommentManagerDAO
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{
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private static $instance = null;
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/**
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* Erstellt die Kommentartabelle,
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* falls diese noch nicht existiert.
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*/
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public function __construct()
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{
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try {
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$db = $this->getConnection();
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$db->exec("
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CREATE TABLE IF NOT EXISTS comments (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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article_id INTEGER NOT NULL,
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author TEXT NOT NULL,
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content TEXT NOT NULL,
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created TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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");
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unset($db);
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} catch (PDOException $e) {
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throw new RuntimeException(
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"Kommentardatenbank konnte nicht erstellt werden."
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);
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}
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}
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/**
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* Baut die Verbindung zur SQLite-Datenbank auf.
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*
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* @return PDO Datenbankverbindung
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*/
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private function getConnection()
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{
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|
caroline.slt marked this conversation as resolved
Outdated
niklas.ortmann
commented
Die genaue Formulierung der Fehlernachrichten wird ja in den views übernommen. Hier könnte man Fehlerkürzel wie Die genaue Formulierung der Fehlernachrichten wird ja in den views übernommen. Hier könnte man Fehlerkürzel wie
RuntimeException("internal_error") verwenden. In der view wird aus der Exception dann gelesen, was in dieser Stand. Wenn dort dann internal_error stand, dann wird eine bestimmte Fehlernachricht angezeigt.
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try {
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$dsn = 'sqlite:' . __DIR__ . '/../../db/comments.db';
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$db = new PDO($dsn, null, null);
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$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
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return $db;
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} catch (PDOException $e) {
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throw new RuntimeException(
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"Verbindung zur Kommentardatenbank fehlgeschlagen."
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);
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}
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}
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/**
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* Gibt die Singleton-Instanz zurück.
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*
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* @return DatabaseCommentManager
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*/
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|
caroline.slt marked this conversation as resolved
Outdated
niklas.ortmann
commented
s. oben s. oben
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public static function getInstance()
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{
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if (self::$instance === null) {
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self::$instance = new DatabaseCommentManager();
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}
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return self::$instance;
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}
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/**
|
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* Speichert einen neuen Kommentar
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* zu einem Beitrag.
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*
|
||||
* @param int $articleId ID des Beitrags
|
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* @param string $author Autor des Kommentars
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* @param string $content Inhalt des Kommentars
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*
|
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* @return void
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||||
*/
|
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public function addComment(
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$articleId,
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$author,
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$content
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) {
|
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try {
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$db = $this->getConnection();
|
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|
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$sql = "
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INSERT INTO comments (
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article_id,
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author,
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content
|
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)
|
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VALUES (
|
||||
:articleId,
|
||||
:author,
|
||||
:content
|
||||
)
|
||||
";
|
||||
|
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$command = $db->prepare($sql);
|
||||
|
||||
$command->execute([
|
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":articleId" => $articleId,
|
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":author" => $author,
|
||||
":content" => $content
|
||||
]);
|
||||
|
||||
} catch (PDOException $e) {
|
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throw new RuntimeException(
|
||||
"Kommentar konnte nicht gespeichert werden."
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Lädt alle Kommentare eines Beitrags.
|
||||
*
|
||||
* @param int $articleId ID des Beitrags
|
||||
*
|
||||
* @return Comment[]
|
||||
*/
|
||||
public function getCommentsByArticle(
|
||||
$articleId
|
||||
) {
|
||||
try {
|
||||
$db = $this->getConnection();
|
||||
|
||||
|
caroline.slt marked this conversation as resolved
Outdated
niklas.ortmann
commented
s. oben s. oben
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||||
$sql = "
|
||||
SELECT *
|
||||
FROM comments
|
||||
WHERE article_id = :articleId
|
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ORDER BY created DESC
|
||||
";
|
||||
|
||||
$command = $db->prepare($sql);
|
||||
|
||||
$command->execute([
|
||||
":articleId" => $articleId
|
||||
]);
|
||||
|
||||
$comments = [];
|
||||
|
||||
while ($row = $command->fetch(PDO::FETCH_ASSOC)) {
|
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|
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$comments[] = new Comment(
|
||||
$row["id"],
|
||||
$row["article_id"],
|
||||
$row["author"],
|
||||
$row["content"],
|
||||
$row["created"]
|
||||
);
|
||||
}
|
||||
|
||||
return $comments;
|
||||
|
||||
} catch (PDOException $e) {
|
||||
throw new RuntimeException(
|
||||
"Kommentare konnten nicht geladen werden."
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user
Warum wurde der Kommentar entfernt?