wangjia
42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
package gateway
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import (
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"errors"
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"gorm.io/gorm"
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"github.com/wangjia/pay/internal/model"
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"github.com/wangjia/pay/internal/money"
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)
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// DBProductResolver resolves a SKU (product biz_code) against the products table.
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// v1 Product.Price is a "元" string; we parse it into int64 minor units for the
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// given settlement currency. 加币种维度到 product 是 P3+ 的事;P2 用单一默认币种。
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type DBProductResolver struct {
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db *gorm.DB
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currency string
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}
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func NewDBProductResolver(db *gorm.DB, currency string) *DBProductResolver {
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if currency == "" {
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currency = "CNY"
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}
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return &DBProductResolver{db: db, currency: currency}
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}
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func (r *DBProductResolver) Resolve(sku string) (int64, string, string, string, error) {
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var p model.Product
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err := r.db.Where("biz_code = ? AND active = ?", sku, true).First(&p).Error
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if errors.Is(err, gorm.ErrRecordNotFound) {
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return 0, "", "", "", ErrProductNotFound
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}
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if err != nil {
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return 0, "", "", "", err
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}
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minor, err := money.Parse(p.Price, r.currency)
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if err != nil {
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return 0, "", "", "", err
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}
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return minor, r.currency, p.Name, p.BizCode, nil
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}
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