chinh sua theo tieu chuan phan mem BDS_1

app/Models/SalesPhase.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Concerns\HasUuids;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class SalesPhase extends Model
+{
+    use HasUuids, HasFactory;
+
+    protected $guarded = [];
+
+    protected $casts = [
+        'discount_policy' => 'array',
+        'start_date' => 'date',
+        'end_date' => 'date',
+    ];
+
+    public function project()
+    {
+        return $this->belongsTo(Project::class);
+    }
+
+    public function paymentTemplate()
+    {
+        return $this->belongsTo(PaymentTemplate::class);
+    }
+
+    public function phaseProducts()
+    {
+        return $this->hasMany(SalesPhaseProduct::class);
+    }
+
+    public function products()
+    {
+        return $this->belongsToMany(Product::class, 'sales_phase_products')
+                    ->using(SalesPhaseProduct::class)
+                    ->withPivot('id', 'sale_price', 'land_value', 'foundation_value', 'discount_details', 'status')
+                    ->withTimestamps();
+    }
+}