init: 我的博客项目

admin/category.php

@@ -0,0 +1,55 @@
+<?php
+require_once __DIR__ . "/../includes/functions.php";
+require_once __DIR__ . "/../includes/auth.php";
+$adminPage = "categories";
+$pageTitle = "分类管理";
+require __DIR__ . "/_layout.php";
+
+$msg = "";
+if ($_SERVER["REQUEST_METHOD"] === "POST" && isset($_POST["name"])) {
+  $name = trim($_POST["name"]);
+  $slug = slugify($_POST["slug"] ?? "");
+  if ($name === "") { $msg = '<div class="msg">分类名不能为空</div>'; }
+  else {
+    $s = db()->prepare("INSERT INTO categories (name, slug) VALUES (?,?)");
+    $s->execute([$name, $slug]);
+    header("Location: category.php?ok=1"); exit;
+  }
+}
+if (isset($_GET["del"])) {
+  $cid = (int)$_GET["del"];
+  db()->prepare("UPDATE articles SET category_id=NULL WHERE category_id=?")->execute([$cid]);
+  db()->prepare("DELETE FROM categories WHERE id=?")->execute([$cid]);
+  header("Location: category.php?deleted=1"); exit;
+}
+$list = db()->query("SELECT c.*, (SELECT COUNT(*) FROM articles a WHERE a.category_id=c.id) AS cnt FROM categories c ORDER BY c.id DESC")->fetchAll();
+?>
+<div class="admin-head"><h1>分类管理</h1></div>
+<?php echo $msg; ?><?php if (isset($_GET["deleted"])) { ?><div class="msg ok">删除成功</div><?php } ?>
+<div class="card glass form-card" style="margin-bottom:20px">
+  <h3>新增分类</h3>
+  <form method="post">
+    <div class="form-row">
+      <div class="field"><label>名称</label><input class="input" type="text" name="name" required></div>
+      <div class="field"><label>别名（slug，可选）</label><input class="input" type="text" name="slug" placeholder="english-slug"></div>
+    </div>
+    <button class="glass-btn primary" type="submit">添加</button>
+  </form>
+</div>
+<div class="card glass">
+  <table class="admin-table">
+    <thead><tr><th>ID</th><th>名称</th><th>别名</th><th>文章数</th><th>操作</th></tr></thead>
+    <tbody>
+    <?php foreach($list as $c): ?>
+      <tr>
+        <td><?php echo $c["id"]; ?></td>
+        <td><?php echo e($c["name"]); ?></td>
+        <td class="text-muted"><?php echo e($c["slug"]); ?></td>
+        <td><?php echo $c["cnt"]; ?></td>
+        <td><div class="actions"><a href="?del=<?php echo $c["id"]; ?>" data-confirm="删除分类不会删除其下文章，仅取消关联，继续？">删除</a></div></td>
+      </tr>
+    <?php endforeach; ?>
+    </tbody>
+  </table>
+</div>
+<?php require __DIR__ . "/_tail.php"; ?>