初始化

app/Models/ForumThread.php

@@ -0,0 +1,75 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class ForumThread extends Model
+{
+    use SoftDeletes;
+
+    protected $fillable = [
+        'board_id',
+        'user_id',
+        'title',
+        'body',
+        'status',
+        'is_pinned',
+        'is_locked',
+        'views',
+        'last_reply_at',
+    ];
+
+    protected $casts = [
+        'board_id' => 'integer',
+        'user_id' => 'integer',
+        'is_pinned' => 'boolean',
+        'is_locked' => 'boolean',
+        'views' => 'integer',
+        'last_reply_at' => 'datetime',
+    ];
+
+    public const STATUS_PENDING = 'pending';
+    public const STATUS_APPROVED = 'approved';
+    public const STATUS_REJECTED = 'rejected';
+
+    /**
+     * 可见性作用域：
+     * - 审核员(forum.moderate)：看全部（含待审/驳回）
+     * - 登录用户：看已审 + 自己发的（无论状态）
+     * - 游客：仅看已审
+     */
+    public function scopeVisible($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 board(): BelongsTo
+    {
+        return $this->belongsTo(ForumBoard::class, 'board_id');
+    }
+
+    public function user(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'user_id');
+    }
+
+    public function replies(): HasMany
+    {
+        return $this->hasMany(ForumReply::class, 'thread_id');
+    }
+}