Pagination on the list, optional auth

2024-07-22 16:19:01 +02:00
parent 7ee04b0a4b
commit 5251c43a6b
11 changed files with 499 additions and 119 deletions
@@ -0,0 +1,107 @@
+<?php
+
+namespace Khofmann\Models\Post;
+
+use DateTime;
+use Khofmann\Models\User\User;
+use JsonSerializable;
+use Khofmann\Database\Database;
+use PDO;
+
+class Post implements JsonSerializable
+{
+  private int $id;
+  // User is set if the post was fetched by an authenticated user
+  private ?User $user;
+  private ?string $name;
+  private string $content;
+  private DateTime $postedAt;
+
+  public function __construct(int $id, ?User $user, ?string $name, string $content, string $postedAt)
+  {
+    $this->id = $id;
+    $this->user = $user;
+    $this->name = $name;
+    $this->content = $content;
+    $this->postedAt = new DateTime($postedAt);
+  }
+
+  /*
+  * Statics
+  */
+
+  public static function list(int $page, int $limit, bool $authed = false)
+  {
+    $db = Database::getInstance();
+    $stmt = $db->prepare(
+      "SELECT
+        COUNT(*)
+      FROM
+        egb_gaestebuch"
+    );
+    $stmt->execute();
+    $count = $stmt->fetch(PDO::FETCH_COLUMN, 0);
+    $stmt = $db->prepare(
+      "SELECT
+        *
+      FROM
+        egb_gaestebuch
+      LIMIT $limit
+      OFFSET " . ($page * $limit)
+    );
+    $stmt->execute();
+    $data = $stmt->fetchAll();
+
+    $list = array_map(
+      function ($item) use ($authed) {
+        $user = User::getByID($item["benutzer_id"]);
+        return new Post($item["id"], $authed ? $user : null, !$authed ? $user->getUsername() : null, $item["beitrag"], $item["zeitstempel"]);
+      },
+      $data
+    );
+
+    return ["pages" => intdiv($count, $limit) + 1, "data" => $list];
+  }
+
+  /*
+  * Getters
+  */
+
+  public function getId(): int
+  {
+    return $this->id;
+  }
+
+  public function getUser(): User
+  {
+    return $this->user;
+  }
+
+  public function getContent(): string
+  {
+    return $this->content;
+  }
+
+  public function getPostedAt(): DateTime
+  {
+    return $this->postedAt;
+  }
+
+  /*
+  * JSON
+  */
+
+  public function jsonSerialize(): array
+  {
+    $user = $this->user ? $this->user : [
+      "username" => $this->name,
+    ];
+
+    return [
+      'id' => $this->id,
+      'user' => $user,
+      'content' => $this->content,
+      'postedAt' => $this->postedAt,
+    ];
+  }
+}