初始化

app/Models/ForumReply.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class ForumReply extends Model
+{
+    use SoftDeletes;
+
+    protected $fillable = [
+        'thread_id',
+        'user_id',
+        'body',
+        'status',
+    ];
+
+    protected $casts = [
+        'thread_id' => 'integer',
+        'user_id' => 'integer',
+    ];
+
+    public const STATUS_PENDING = 'pending';
+    public const STATUS_APPROVED = 'approved';
+    public const STATUS_REJECTED = 'rejected';
+
+    /**
+     * 可见性作用域（同 ForumThread）：
+     * - 审核员：全部
+     * - 登录用户：已审 + 自己发的
+     * - 游客：仅已审
+     */
+    public function scopeVisible($query, ?User $user = null)
+    {
+        if ($user && $user->canPerm('forum.moderate')) {
+            return $query;
+        }
+
+        if ($user) {
+            return $query->where(function ($q) use ($user) {
+                $q->where('status', self::STATUS_APPROVED)
+                  ->orWhere('user_id', $user->id);
+            });
+        }
+
+        return $query->where('status', self::STATUS_APPROVED);
+    }
+
+    public function thread(): BelongsTo
+    {
+        return $this->belongsTo(ForumThread::class, 'thread_id');
+    }
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'user_id');
+    }
+}