55 lines
1.2 KiB
PHP
55 lines
1.2 KiB
PHP
<?php
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namespace App\Models;
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use Illuminate\Database\Eloquent\Factories\HasFactory;
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use Illuminate\Database\Eloquent\Model;
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use Illuminate\Database\Eloquent\Relations\BelongsTo;
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/**
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* 商品价格模型（同一商品按客户等级定价，联合键 product_id + level_id）
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*/
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class ProductPriceModel extends Model
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{
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use HasFactory;
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protected $table = 'product_price';
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protected $primaryKey = 'id';
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protected $fillable = [
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'product_id',
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'level_id',
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'price',
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];
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protected $casts = [
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'product_id' => 'integer',
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'level_id' => 'integer',
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'price' => 'decimal:2',
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];
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/**
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* 所属商品
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*/
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public function product(): BelongsTo
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{
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return $this->belongsTo(ProductModel::class, 'product_id', 'id');
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}
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/**
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* 所属客户等级
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*/
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public function level(): BelongsTo
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{
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return $this->belongsTo(CustomerLevelModel::class, 'level_id', 'id');
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}
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/**
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* 按商品 + 等级筛选价格
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*/
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public function scopeForProductLevel($query, int $productId, int $levelId)
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{
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return $query->where('product_id', $productId)->where('level_id', $levelId);
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}
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}
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