feat 添加价格状态

model/product/model.go

@@ -13,6 +13,14 @@ const (
 	defaultFreight      float64 = 100
 )
 
+type PriceStatus int
+
+const (
+	PriceStatus_NoChange PriceStatus = iota
+	PriceStatus_UP
+	PriceStatus_DOWN //降价
+)
+
 type Product struct {
 	ID        uint           `gorm:"primary_key" json:"id"`
 	CreatedAt time.Time      `json:"createdAt"`
@@ -33,6 +41,7 @@ type Product struct {
 	Freight       float64        `json:"freight"`               //运费
 	ExchangeRate  float64        `json:"exchangeRate" gorm:"-"` //汇率
 	Rate          float64        `json:"rate"`                  //利润率
+	PriceStatus   PriceStatus    `json:"priceStatus"`           //价格状态
 	Remark        string         `json:"remark"`                //备注
 	HistoryPrices []HistoryPrice `gorm:"foreignKey:Pid;references:Pid" json:"historyPrices"`
 }
@@ -42,7 +51,6 @@ func (p *Product) TableName() string {
 }
 
 func (p *Product) BeforeSave(tx *gorm.DB) (err error) {
-	tx.Model(&Product{}).Where("pid = ?", p.Pid).Pluck("freight", &p.Freight)
 	p.CalRate()
 	var lastPrice float64
 	tx.Model(&HistoryPrice{}).Where("pid = ?", p.Pid).Order("created_at desc").Limit(1).Pluck("us_price", &lastPrice)
@@ -50,6 +58,12 @@ func (p *Product) BeforeSave(tx *gorm.DB) (err error) {
 		p.HistoryPrices = append(p.HistoryPrices, HistoryPrice{
 			USPrice: p.USPrice,
 		})
+		if p.USPrice > lastPrice {
+			p.PriceStatus = PriceStatus_UP
+		} else {
+			p.PriceStatus = PriceStatus_DOWN
+
+		}
 	}
 	return
 }

model/product/model_test.go

@@ -12,7 +12,7 @@ func TestUpsert(t *testing.T) {
 		User:     "timerzz",
 		Password: "zhhg1997",
 		Port:     "5432",
-		DBName:   "kedaya",
+		DBName:   "kedaya_dev",
 	})
 	if err != nil {
 		t.Fatal(err)
@@ -23,28 +23,36 @@ func TestUpsert(t *testing.T) {
 	}
 	db.Clauses(clause.OnConflict{
 		Columns:   []clause.Column{{Name: "pid"}},
-		DoUpdates: clause.AssignmentColumns([]string{"name", "color", "link", "orderable", "us_price", "cny_price", "cal_mark", "freight", "rate"}),
+		DoUpdates: clause.AssignmentColumns([]string{"name", "color", "link", "orderable", "us_price", "cny_price", "cal_mark", "rate"}),
 	}).Create([]Product{
 		{
 			Name:      "test",
-			Pid:       "test-1",
+			Pid:       "test-3",
 			Color:     "green",
 			Link:      "www.baidu.com",
 			Image:     "image",
 			Orderable: false,
 			USPrice:   123,
 			DWPrice:   3000,
-			Freight:   120,
-		},
-		{
-			Name:      "test2",
-			Pid:       "test-2",
-			Color:     "green",
-			Link:      "www.baidu.com",
-			Image:     "image",
-			Orderable: false,
-			USPrice:   421,
-			DWPrice:   3000,
+			Freight:   130,
 		},
 	})
 }
+
+func TestUpdate(t *testing.T) {
+	db, err := database.InitDatabase(&database.DBOption{
+		Host:     "192.168.31.55",
+		User:     "timerzz",
+		Password: "zhhg1997",
+		Port:     "5432",
+		DBName:   "kedaya_dev",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	var p = Product{Pid: "CJ575-QBO4G", DWPrice: 3000, Freight: 150, Remark: "test", USPrice: 209.3, ExchangeRate: 7.3}
+	err = db.Model(&p).Where("pid = ?", p.Pid).Select("dw_price", "freight", "remark", "rate", "cal_mark", "cny_price").Updates(&p).Error
+	if err != nil {
+		t.Fatal(err)
+	}
+}