处理 GORM 0 的bug

api/dao/doctorPharmacy.go

@@ -24,6 +24,28 @@ func (r *DoctorPharmacyDao) GetDoctorPharmacyListByDoctorId(doctorId int64) (m [
 	if err != nil {
 		return nil, err
 	}
+
+	// GORM 在外键为 0 时会自动跳过 Preload，因此针对未能预加载的记录进行兜底补全
+	var zeroPharmacy *model.Pharmacy
+	for _, dp := range m {
+		if dp.Pharmacy == nil {
+			if dp.PharmacyId == 0 {
+				if zeroPharmacy == nil {
+					var ph model.Pharmacy
+					if err := global.Db.Where("pharmacy_id = 0").First(&ph).Error; err == nil {
+						zeroPharmacy = &ph
+					}
+				}
+				dp.Pharmacy = zeroPharmacy
+			} else {
+				var ph model.Pharmacy
+				if err := global.Db.Where("pharmacy_id = ?", dp.PharmacyId).First(&ph).Error; err == nil {
+					dp.Pharmacy = &ph
+				}
+			}
+		}
+	}
+
 	return m, nil
 }