实现产品查询和修改接口 & 修复套餐查询接口问题

web/services/product_sku.go

@@ -0,0 +1,86 @@
+package services
+
+import (
+	"platform/web/core"
+	m "platform/web/models"
+	q "platform/web/queries"
+	"time"
+
+	"github.com/shopspring/decimal"
+	"gorm.io/gen"
+	"gorm.io/gen/field"
+)
+
+var ProductSku = &productSkuService{}
+
+type productSkuService struct{}
+
+func (s *productSkuService) Page(req *core.PageReq, productId *int32) (result []*m.ProductSku, count int64, err error) {
+	do := make([]gen.Condition, 0)
+	if productId != nil {
+		do = append(do, q.ProductSku.ProductID.Eq(*productId))
+	}
+	return q.ProductSku.
+		Where(do...).
+		FindByPage(req.GetOffset(), req.GetLimit())
+}
+
+func (s *productSkuService) Create(create CreateProductSkuData) (err error) {
+	price, err := decimal.NewFromString(create.Price)
+	if err != nil {
+		return core.NewBizErr("产品价格的格式不正确", err)
+	}
+
+	return q.ProductSku.Create(&m.ProductSku{
+		ProductID: create.ProductID,
+		Code:      create.Code,
+		Name:      create.Name,
+		Price:     price,
+		Discount:  create.Discount,
+	})
+}
+
+type CreateProductSkuData struct {
+	ProductID int32   `json:"product_id"`
+	Code      string  `json:"code"`
+	Name      string  `json:"name"`
+	Price     string  `json:"price"`
+	Discount  float32 `json:"discount"`
+}
+
+func (s *productSkuService) Update(update UpdateProductSkuData) (err error) {
+	do := make([]field.AssignExpr, 0)
+
+	if update.Price != nil {
+		price, err := decimal.NewFromString(*update.Price)
+		if err != nil {
+			return core.NewBizErr("产品价格的格式不正确", err)
+		}
+		do = append(do, q.ProductSku.Price.Value(price))
+	}
+	if update.Discount != nil {
+		do = append(do, q.ProductSku.Discount.Value(*update.Discount))
+	}
+	if update.Code != nil {
+		do = append(do, q.ProductSku.Code.Value(*update.Code))
+	}
+	if update.Name != nil {
+		do = append(do, q.ProductSku.Name.Value(*update.Name))
+	}
+
+	_, err = q.ProductSku.Where(q.ProductSku.ID.Eq(update.ID)).UpdateSimple(do...)
+	return err
+}
+
+type UpdateProductSkuData struct {
+	ID       int32    `json:"id"`
+	Code     *string  `json:"code"`
+	Name     *string  `json:"name"`
+	Price    *string  `json:"price"`
+	Discount *float32 `json:"discount"`
+}
+
+func (s *productSkuService) Delete(id int32) (err error) {
+	_, err = q.ProductSku.Where(q.ProductSku.ID.Eq(id)).UpdateColumn(q.ProductSku.DeletedAt, time.Now())
+	return
+}