优化代码

internal/db/models/clients/client_browser_dao.go

@@ -0,0 +1,155 @@
+package clients
+
+import (
+	"github.com/TeaOSLab/EdgeAPI/internal/db/models"
+	"github.com/TeaOSLab/EdgeAPI/internal/goman"
+	"github.com/TeaOSLab/EdgeAPI/internal/remotelogs"
+	"github.com/TeaOSLab/EdgeAPI/internal/utils/ttlcache"
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/iwind/TeaGo/Tea"
+	"github.com/iwind/TeaGo/dbs"
+	"github.com/iwind/TeaGo/rands"
+	timeutil "github.com/iwind/TeaGo/utils/time"
+	"time"
+)
+
+const (
+	ClientBrowserStateEnabled  = 1 // 已启用
+	ClientBrowserStateDisabled = 0 // 已禁用
+)
+
+func init() {
+	dbs.OnReadyDone(func() {
+		// 清理数据任务
+		var ticker = time.NewTicker(time.Duration(rands.Int(24, 48)) * time.Hour)
+		goman.New(func() {
+			for range ticker.C {
+				err := SharedClientBrowserDAO.Clean(nil, 7) // 只保留N天
+				if err != nil {
+					remotelogs.Error("SharedClientBrowserDAO", "clean expired data failed: "+err.Error())
+				}
+			}
+		})
+	})
+}
+
+type ClientBrowserDAO dbs.DAO
+
+func NewClientBrowserDAO() *ClientBrowserDAO {
+	return dbs.NewDAO(&ClientBrowserDAO{
+		DAOObject: dbs.DAOObject{
+			DB:     Tea.Env,
+			Table:  "edgeClientBrowsers",
+			Model:  new(ClientBrowser),
+			PkName: "id",
+		},
+	}).(*ClientBrowserDAO)
+}
+
+var SharedClientBrowserDAO *ClientBrowserDAO
+
+func init() {
+	dbs.OnReady(func() {
+		SharedClientBrowserDAO = NewClientBrowserDAO()
+	})
+}
+
+// EnableClientBrowser 启用条目
+func (this *ClientBrowserDAO) EnableClientBrowser(tx *dbs.Tx, id uint32) error {
+	_, err := this.Query(tx).
+		Pk(id).
+		Set("state", ClientBrowserStateEnabled).
+		Update()
+	return err
+}
+
+// DisableClientBrowser 禁用条目
+func (this *ClientBrowserDAO) DisableClientBrowser(tx *dbs.Tx, id uint32) error {
+	_, err := this.Query(tx).
+		Pk(id).
+		Set("state", ClientBrowserStateDisabled).
+		Update()
+	return err
+}
+
+// FindEnabledClientBrowser 查找启用中的条目
+func (this *ClientBrowserDAO) FindEnabledClientBrowser(tx *dbs.Tx, id int64) (*ClientBrowser, error) {
+	result, err := this.Query(tx).
+		Pk(id).
+		Attr("state", ClientBrowserStateEnabled).
+		Find()
+	if result == nil {
+		return nil, err
+	}
+	return result.(*ClientBrowser), err
+}
+
+// FindClientBrowserName 根据主键查找名称
+func (this *ClientBrowserDAO) FindClientBrowserName(tx *dbs.Tx, id uint32) (string, error) {
+	return this.Query(tx).
+		Pk(id).
+		Result("name").
+		FindStringCol("")
+}
+
+// CreateBrowserIfNotExists 创建浏览器信息
+func (this *ClientBrowserDAO) CreateBrowserIfNotExists(tx *dbs.Tx, browserName string) error {
+	const maxlength = 50
+	if len(browserName) > maxlength {
+		browserName = browserName[:50]
+	}
+
+	// 检查缓存
+	var cacheKey = "clientBrowser:" + browserName
+	var cacheItem = ttlcache.SharedCache.Read(cacheKey)
+	if cacheItem != nil {
+		return nil
+	}
+
+	// 检查是否已经存在
+	// 不需要加状态条件
+	browserId, err := this.Query(tx).
+		Attr("name", browserName).
+		ResultPk().
+		FindInt64Col(0)
+	if err != nil {
+		return err
+	}
+	if browserId > 0 {
+		// 加入缓存，但缓存时间不要过长，因为有别的操作在更新数据
+		ttlcache.SharedCache.Write(cacheKey, browserId, time.Now().Unix()+3600)
+
+		return this.Query(tx).
+			Pk(browserId).
+			Set("createdDay", timeutil.Format("Ymd")).
+			UpdateQuickly()
+	}
+
+	// 如果不存在，则创建之
+	var op = NewClientBrowserOperator()
+	op.Name = browserName
+	op.CreatedDay = timeutil.Format("Ymd")
+	op.State = ClientBrowserStateEnabled
+	browserId, err = this.SaveInt64(tx, op)
+	if err != nil && models.CheckSQLErrCode(err, 1062 /** duplicate entry **/) {
+		return nil
+	}
+
+	// 加入缓存，但缓存时间不要过长，因为有别的操作在更新数据
+	if browserId > 0 {
+		ttlcache.SharedCache.Write(cacheKey, browserId, time.Now().Unix()+3600)
+	}
+
+	return err
+}
+
+// Clean 清理
+func (this *ClientBrowserDAO) Clean(tx *dbs.Tx, days int) error {
+	if days <= 0 {
+		days = 30
+	}
+
+	return this.Query(tx).
+		Lt("createdDay", timeutil.Format("Ymd", time.Now().AddDate(0, 0, -days))).
+		DeleteQuickly()
+}