first commit

modules/SystemTool/Models/SysFileGroupModel.php

@@ -0,0 +1,62 @@
+<?php
+namespace Modules\SystemTool\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+
+/**
+ * Class FileGroup
+ */
+class SysFileGroupModel extends Model
+{
+    protected $table = 'sys_file_group';
+
+    protected $primaryKey = 'id';
+
+    protected $casts = [
+        'sort' => 'int',
+        'parent_id' => 'int'
+    ];
+
+    protected $fillable = [
+        'name',
+        'parent_id',
+        'sort',
+        'describe',
+    ];
+
+    protected $appends = ['countFiles'];
+
+    /**
+     * 获取父级分组
+     */
+    public function parent(): BelongsTo
+    {
+        return $this->belongsTo(self::class, 'parent_id', 'id');
+    }
+
+    /**
+     * 获取子级分组
+     */
+    public function children(): HasMany
+    {
+        return $this->hasMany(self::class, 'parent_id', 'id');
+    }
+
+    /**
+     * 获取分组下的文件
+     */
+    public function files(): HasMany
+    {
+        return $this->hasMany(SysFileModel::class, 'group_id', 'id');
+    }
+
+    /**
+     * 获取分组下的文件数量
+     */
+    public function getCountFilesAttribute(): int
+    {
+        return $this->files()->count();
+    }
+}