291 lines
9.1 KiB
PHP
291 lines
9.1 KiB
PHP
<?php
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require_once 'db_functions.php';
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function article_ids_by_newest()
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{
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$conn = get_connection();
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$results = $conn->query('SELECT article_id FROM article ORDER BY published_at DESC');
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$ids = [];
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while ($row = $results->fetch_assoc())
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$ids[] = $row['article_id'];
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return $ids;
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}
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function article_ids_by_oldest()
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{
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$conn = get_connection();
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$results = $conn->query('SELECT article_id FROM article ORDER BY published_at ASC');
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$ids = [];
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while ($row = $results->fetch_assoc())
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$ids[] = $row['article_id'];
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return $ids;
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}
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function articles_ids_by_author($author_id)
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{
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$conn = get_connection();
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$stmt = $conn->prepare('SELECT article_id FROM article WHERE author_id = ? ORDER BY published_at DESC');
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$stmt->bind_param('i', $author_id);
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$stmt->execute();
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$results = $stmt->get_result();
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$ids = [];
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while ($row = $results->fetch_assoc())
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$ids[] = $row['article_id'];
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return $ids;
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}
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function article_tags()
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{
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$conn = get_connection();
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$results = $conn->query('SELECT * FROM tags');
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$tags = [];
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while ($row = $results->fetch_assoc())
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$tags[] = $row;
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return $tags;
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}
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function article_ids_by_tag($tag)
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{
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$conn = get_connection();
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$stmt = $conn->prepare('SELECT article_id FROM article WHERE article.article_id IN ( SELECT article_tags.article_id FROM article_tags INNER JOIN tags ON article_tags.tag_id = tags.tag_id WHERE tag = ?) ORDER BY published_at DESC');
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$stmt->bind_param('s', $tag);
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$stmt->execute();
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$results = $stmt->get_result();
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$ids = [];
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while ($row = $results->fetch_assoc())
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$ids[] = $row['article_id'];
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return $ids;
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}
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/*
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* Reads the markdown file for a given article and generates the HTML for it.
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*/
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function article_page_from_markdown($article_id)
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{
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$conn = get_connection();
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$stmt = $conn->prepare('SELECT * FROM article WHERE article_id = ?');
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$stmt->bind_param('i', $article_id);
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$stmt->execute();
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$article = $stmt->get_result()->fetch_assoc();
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$stmt = $conn->prepare('SELECT user_id, username, profile_picture FROM user WHERE user_id = ?');
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$stmt->bind_param('i', $article['author_id']);
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$stmt->execute();
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$author = $stmt->get_result()->fetch_assoc();
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$markdown = read_file_one_string($_ENV['ARTICLES_FQ_PATH'] . $article_id . '/article.md');
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$parsedown = new Parsedown();
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$parsedown->setSafeMode(true);
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$article_content = $parsedown->text($markdown);
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$html = '
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<div class="article">
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<div class="row">
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<h1>' . $article['title'] . '</h1>
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' . (isset($_COOKIE['user_id']) && $_COOKIE['user_id'] == $article['author_id'] ? '<a href="compose.php?article_id=' . $article_id . '"><i class="nf nf-fa-edit"></i></a>' : '') . '
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</div>
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<div class="row">
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<div class="col_right">
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<h5>Written by <a href="user.php?action=view&user_id=' . $author['user_id'] . '">' . $author['username'] . '</a></h5>
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<p>Published on ' . $article['published_at'] . '</p>
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</div>
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<div class="card_pic_box">
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<img src="' . $_ENV['PROFILE_IMAGES_PQ_PATH'] . $author['profile_picture'] . '" class="card_profile_picture" />
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</div>
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</div>
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<div class="line" style="margin-bottom: 15px;"></div>
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<div class="article_content">
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' . $article_content . '
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</div>
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</div>
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';
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return $html;
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}
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function article_filters()
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{
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$filters = '
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<form method="get">
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<label for="recency_desc"><i class="nf nf-md-sort_clock_ascending_outline"></i>
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<input id="recency_desc" type="radio" name="sort" value="oldest" onclick="this.form.submit()">
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</label>
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<label for="recency_asc"><i class="nf nf-md-sort_clock_descending_outline"></i>
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<input id="recency_asc" type="radio" name="sort" value="newest" onclick="this.form.submit()">
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</label>
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</form>
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';
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return $filters;
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}
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/*
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* Generates cards for a given article.
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*/
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function article_card($article_id)
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{
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$conn = get_connection();
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$stmt = $conn->prepare('SELECT * FROM article WHERE article_id = ?');
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$stmt->bind_param('i', $article_id);
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$stmt->execute();
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$article = $stmt->get_result()->fetch_assoc();
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$stmt = $conn->prepare('SELECT tag FROM article_tags INNER JOIN tags ON article_tags.tag_id = tags.tag_id WHERE article_id = ?');
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$stmt->bind_param('i', $article_id);
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$stmt->execute();
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$tags_results = $stmt->get_result();
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$tags_html = '';
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if ($tags_results != null) {
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$tags_html .= '<div class="tag_row">';
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while ($row = $tags_results->fetch_assoc())
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$tags_html .= '<a href="/articles.php?tag=' . $row['tag'] . '" class="tag">#' . $row['tag'] . '</a>';
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$tags_html .= '</div>';
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}
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$stmt = $conn->prepare('SELECT user_id, username, profile_picture FROM user WHERE user_id = ?');
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$stmt->bind_param('i', $article['author_id']);
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$stmt->execute();
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$author = $stmt->get_result()->fetch_assoc();
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$card = '
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<div class="article_card">
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<div class="row">
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<h4>' . $article['title'] . '</h4>
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<div class="card_info_box">
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<div class="col-right">
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<a href="user.php?action=view&user_id=' . $author['user_id'] . '">Written by: ' . $author['username'] . '</a>
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<small>Published: ' . $article['published_at'] . '</small>
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</div>
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<div class="card_pic_box">
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<img src="' . $_ENV['PROFILE_IMAGES_PQ_PATH'] . $author['profile_picture'] . '" class="card_profile_picture">
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</div>
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</div>
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</div>
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<div class="line"></div>
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<p>' . $article['excerpt'] . '</p>
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<div class="row">
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<a href="/articles.php?article_id=' . $article['article_id'] . '" class="button">Read More</a>
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<div class="tag_box">' . $tags_html . '</div>
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</div>
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</div>
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';
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return $card;
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}
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function create_article($author_id, $title, $excerpt, $tags, $markdown_file_contents)
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{
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$conn = get_connection();
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$stmt = $conn->prepare('INSERT INTO article (author_id, title, excerpt, published_at) VALUES (?, ?, ?, CURRENT_TIMESTAMP)');
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$stmt->bind_param('iss', $author_id, $title, $excerpt);
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$stmt->execute();
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$id = mysqli_insert_id($conn);
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$path = $_ENV['ARTICLES_FQ_PATH'] . $id . '/';
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mkdir($path);
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$fs = fopen($path . 'article.md', 'a');
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fwrite($fs, $markdown_file_contents);
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fclose($fs);
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if (count($tags) > 0) {
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$tag_insert_stmt = 'INSERT INTO article_tags (article_id, tag_id) VALUES ';
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for ($i = 0; $i < count($tags); $i++) {
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$tag_insert_stmt .= '(' . $id . ', ?)';
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if ($i < count($tags) - 1)
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$tag_insert_stmt .= ', ';
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}
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$stmt = $conn->prepare($tag_insert_stmt);
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$stmt->bind_param('i', ...$tags);
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$stmt->execute();
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}
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return $id;
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}
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function update_article($article_id, $title, $excerpt, $tags, $markdown_file_contents)
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{
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$conn = get_connection();
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$stmt = $conn->prepare('UPDATE article SET title = ?, excerpt = ?, updated_at = CURRENT_TIMESTAMP WHERE article_id = ?');
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$stmt->bind_param('ssi', $title, $excerpt, $article_id);
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$stmt->execute();
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$path = $_ENV['ARTICLES_FQ_PATH'] . $article_id . '/';
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$fs = fopen($path . 'article.md', 'w');
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fwrite($fs, $markdown_file_contents);
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fclose($fs);
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$stmt = $conn->prepare('DELETE from article_tags WHERE article_id = ?');
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$stmt->bind_param('i', $article_id);
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$stmt->execute();
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if (count($tags) > 0) {
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$tag_insert_stmt = 'INSERT INTO article_tags (article_id, tag_id) VALUES ';
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$input = '';
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for ($i = 0; $i < count($tags); $i++) {
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$tag_insert_stmt .= '(' . $article_id . ', ?)';
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if ($i < count($tags) - 1)
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$tag_insert_stmt .= ', ';
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$input .= 'i';
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}
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$stmt = $conn->prepare($tag_insert_stmt);
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$stmt->bind_param($input, ...$tags);
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$stmt->execute();
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}
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}
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function delete_article($article_id)
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{
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$conn = get_connection();
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$stmt = $conn->prepare('DELETE FROM article_tags WHERE article_id = ?');
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$stmt->bind_param('i', $article_id);
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$stmt->execute();
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$stmt = $conn->prepare('DELETE FROM article WHERE article_id = ?');
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$stmt->bind_param('i', $article_id);
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$stmt->execute();
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delete_dir($_ENV['ARTICLES_FQ_PATH'] . $article_id . '/');
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}
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function delete_articles_by_author($author_id)
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{
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$conn = get_connection();
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$stmt = $conn->prepare('DELETE FROM article WHERE author_id = ?');
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$stmt->bind_param('i', $author_id);
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$stmt->execute();
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}
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function increment_read_counter($article_id)
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{
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$conn = get_connection();
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$stmt = $conn->prepare('UPDATE article SET read_count = read_count + 1 WHERE article_id = ?');
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$stmt->bind_param('i', $article_id);
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$stmt->execute();
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}
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