对服务增加基础的数据统计/部分代码分Package

internal/db/models/regions/region_province_dao.go

@@ -0,0 +1,149 @@
+package regions
+
+import (
+	"encoding/json"
+	"github.com/TeaOSLab/EdgeAPI/internal/utils/numberutils"
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/iwind/TeaGo/Tea"
+	"github.com/iwind/TeaGo/dbs"
+	"github.com/iwind/TeaGo/types"
+)
+
+const (
+	RegionProvinceStateEnabled  = 1 // 已启用
+	RegionProvinceStateDisabled = 0 // 已禁用
+)
+
+var regionProvinceNameAndIdCacheMap = map[string]int64{} // province name @ country id => province id
+
+type RegionProvinceDAO dbs.DAO
+
+func NewRegionProvinceDAO() *RegionProvinceDAO {
+	return dbs.NewDAO(&RegionProvinceDAO{
+		DAOObject: dbs.DAOObject{
+			DB:     Tea.Env,
+			Table:  "edgeRegionProvinces",
+			Model:  new(RegionProvince),
+			PkName: "id",
+		},
+	}).(*RegionProvinceDAO)
+}
+
+var SharedRegionProvinceDAO *RegionProvinceDAO
+
+func init() {
+	dbs.OnReady(func() {
+		SharedRegionProvinceDAO = NewRegionProvinceDAO()
+	})
+}
+
+// 启用条目
+func (this *RegionProvinceDAO) EnableRegionProvince(tx *dbs.Tx, id int64) error {
+	_, err := this.Query(tx).
+		Pk(id).
+		Set("state", RegionProvinceStateEnabled).
+		Update()
+	return err
+}
+
+// 禁用条目
+func (this *RegionProvinceDAO) DisableRegionProvince(tx *dbs.Tx, id int64) error {
+	_, err := this.Query(tx).
+		Pk(id).
+		Set("state", RegionProvinceStateDisabled).
+		Update()
+	return err
+}
+
+// 查找启用中的条目
+func (this *RegionProvinceDAO) FindEnabledRegionProvince(tx *dbs.Tx, id int64) (*RegionProvince, error) {
+	result, err := this.Query(tx).
+		Pk(id).
+		Attr("state", RegionProvinceStateEnabled).
+		Find()
+	if result == nil {
+		return nil, err
+	}
+	return result.(*RegionProvince), err
+}
+
+// 根据主键查找名称
+func (this *RegionProvinceDAO) FindRegionProvinceName(tx *dbs.Tx, id int64) (string, error) {
+	return this.Query(tx).
+		Pk(id).
+		Result("name").
+		FindStringCol("")
+}
+
+// 根据数据ID查找省份
+func (this *RegionProvinceDAO) FindProvinceIdWithDataId(tx *dbs.Tx, dataId string) (int64, error) {
+	return this.Query(tx).
+		Attr("dataId", dataId).
+		ResultPk().
+		FindInt64Col(0)
+}
+
+// 根据省份名查找省份ID
+func (this *RegionProvinceDAO) FindProvinceIdWithName(tx *dbs.Tx, countryId int64, provinceName string) (int64, error) {
+	return this.Query(tx).
+		Attr("countryId", countryId).
+		Where("JSON_CONTAINS(codes, :provinceName)").
+		Param("provinceName", "\""+provinceName+"\""). // 查询的需要是个JSON字符串，所以这里加双引号
+		ResultPk().
+		FindInt64Col(0)
+}
+
+// 根据省份名查找省份ID，并可使用缓存
+func (this *RegionProvinceDAO) FindProvinceIdWithNameCacheable(tx *dbs.Tx, countryId int64, provinceName string) (int64, error) {
+	var key = provinceName + "@" + numberutils.FormatInt64(countryId)
+
+	SharedCacheLocker.RLock()
+	provinceId, ok := regionProvinceNameAndIdCacheMap[key]
+	if ok {
+		SharedCacheLocker.RUnlock()
+		return provinceId, nil
+	}
+	SharedCacheLocker.RUnlock()
+
+	provinceId, err := this.FindProvinceIdWithName(tx, countryId, provinceName)
+	if err != nil {
+		return 0, err
+	}
+	SharedCacheLocker.Lock()
+	regionProvinceNameAndIdCacheMap[key] = provinceId
+	SharedCacheLocker.Unlock()
+
+	return provinceId, nil
+}
+
+// 创建省份
+func (this *RegionProvinceDAO) CreateProvince(tx *dbs.Tx, countryId int64, name string, dataId string) (int64, error) {
+	op := NewRegionProvinceOperator()
+	op.CountryId = countryId
+	op.Name = name
+	op.DataId = dataId
+	op.State = RegionProvinceStateEnabled
+
+	codes := []string{name}
+	codesJSON, err := json.Marshal(codes)
+	if err != nil {
+		return 0, err
+	}
+	op.Codes = codesJSON
+	err = this.Save(tx, op)
+	if err != nil {
+		return 0, err
+	}
+	return types.Int64(op.Id), nil
+}
+
+// 查找所有省份
+func (this *RegionProvinceDAO) FindAllEnabledProvincesWithCountryId(tx *dbs.Tx, countryId int64) (result []*RegionProvince, err error) {
+	_, err = this.Query(tx).
+		State(RegionProvinceStateEnabled).
+		Attr("countryId", countryId).
+		Asc().
+		Slice(&result).
+		FindAll()
+	return
+}