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137 lines
3.5 KiB
137 lines
3.5 KiB
package models
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import (
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"fmt"
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_ "github.com/go-sql-driver/mysql"
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"github.com/go-xorm/core"
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"github.com/go-xorm/xorm"
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"gopkg.in/macaron.v1"
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"strings"
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"time"
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"github.com/ouqiang/gocron/modules/logger"
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"github.com/ouqiang/gocron/modules/app"
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)
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type Status int8
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type CommonMap map[string]interface{}
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var TablePrefix string = ""
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var Db *xorm.Engine
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const (
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Disabled Status = 0 // 禁用
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Failure Status = 0 // 失败
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Enabled Status = 1 // 启用
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Running Status = 1 // 运行中
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Finish Status = 2 // 完成
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Cancel Status = 3 // 取消
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Background Status = 4 // 后台运行
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)
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const (
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Page = 1 // 当前页数
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PageSize = 20 // 每页多少条数据
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MaxPageSize = 100000 // 每次最多取多少条
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)
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const DefaultTimeFormat = "2006-01-02 15:04:05"
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type BaseModel struct {
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Page int `xorm:"-"`
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PageSize int `xorm:"-"`
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}
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func (model *BaseModel) parsePageAndPageSize(params CommonMap) {
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page, ok := params["Page"]
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if ok {
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model.Page = page.(int)
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}
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pageSize, ok := params["PageSize"]
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if ok {
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model.PageSize = pageSize.(int)
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}
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if model.Page <= 0 {
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model.Page = Page
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}
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if model.PageSize <= 0 || model.PageSize > MaxPageSize {
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model.PageSize = PageSize
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}
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}
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func (model *BaseModel) pageLimitOffset() int {
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return (model.Page - 1) * model.PageSize
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}
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// 创建Db
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func CreateDb() *xorm.Engine {
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config := getDbConfig()
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dsn := getDbEngineDSN(config["engine"], config)
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engine, err := xorm.NewEngine(config["engine"], dsn)
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if err != nil {
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logger.Fatal("创建xorm引擎失败", err)
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}
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if config["prefix"] != "" {
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// 设置表前缀
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TablePrefix = config["prefix"]
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mapper := core.NewPrefixMapper(core.SnakeMapper{}, config["prefix"])
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engine.SetTableMapper(mapper)
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}
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// 本地环境开启日志
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if macaron.Env == macaron.DEV {
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engine.ShowSQL(true)
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engine.Logger().SetLevel(core.LOG_DEBUG)
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}
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go keepDbAlived(engine)
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return engine
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}
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// 创建临时数据库连接
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func CreateTmpDb(config map[string]string) (*xorm.Engine, error) {
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dsn := getDbEngineDSN(config["engine"], config)
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return xorm.NewEngine(config["engine"], dsn)
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}
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// 获取数据库引擎DSN mysql,sqlite
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func getDbEngineDSN(engine string, config map[string]string) string {
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engine = strings.ToLower(engine)
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var dsn string = ""
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switch engine {
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case "mysql":
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dsn = fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=%s",
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config["user"],
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config["password"],
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config["host"],
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config["port"],
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config["database"],
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config["charset"])
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}
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return dsn
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}
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// 定时ping, 防止因数据库超时设置连接被断开
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func keepDbAlived(engine *xorm.Engine) {
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t := time.Tick(180 * time.Second)
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for {
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<- t
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engine.Ping()
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}
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}
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// 获取数据库配置
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func getDbConfig() map[string]string {
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var db map[string]string = make(map[string]string)
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db["user"] = app.Setting.Key("db.user").String()
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db["password"] = app.Setting.Key("db.password").String()
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db["host"] = app.Setting.Key("db.host").String()
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db["port"] = app.Setting.Key("db.port").String()
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db["database"] = app.Setting.Key("db.database").String()
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db["charset"] = app.Setting.Key("db.charset").String()
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db["prefix"] = app.Setting.Key("db.prefix").String()
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db["engine"] = app.Setting.Key("db.engine").String()
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return db
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} |