第二阶段完善代理商激活码

app/manager/model/Agent.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace app\manager\model;
+
+use think\Model;
+
+class Agent extends Model
+{
+    protected $name = 'cursor_agents';
+    
+    // 自动写入时间戳
+    protected $autoWriteTimestamp = true;
+    protected $createTime = 'created_at';
+    protected $updateTime = 'updated_at';
+
+    // 设置字段类型
+    protected $type = [
+        'balance' => 'float',
+        'total_income' => 'float',
+        'commission_rate' => 'float',
+        'last_login_time' => 'datetime',
+        'created_at' => 'datetime',
+        'updated_at' => 'datetime',
+    ];
+
+    // 获取父级代理
+    public function parent()
+    {
+        return $this->belongsTo(Agent::class, 'parent_id');
+    }
+
+    // 获取子级代理
+    public function children()
+    {
+        return $this->hasMany(Agent::class, 'parent_id');
+    }
+
+    // 获取代理的激活码
+    public function codes()
+    {
+        return $this->hasMany('app\manager\model\AgentCode', 'agent_id');
+    }
+
+    // 更新余额
+    public function updateBalance($amount)
+    {
+        $this->balance += $amount;
+        $this->total_income += max(0, $amount);
+        return $this->save();
+    }
+}