gocron/models/model.go

137 lines
3.5 KiB
Go

package models
import (
"fmt"
_ "github.com/go-sql-driver/mysql"
"github.com/go-xorm/core"
"github.com/go-xorm/xorm"
"gopkg.in/macaron.v1"
"strings"
"time"
"github.com/ouqiang/gocron/modules/logger"
"github.com/ouqiang/gocron/modules/app"
)
type Status int8
type CommonMap map[string]interface{}
var TablePrefix string = ""
var Db *xorm.Engine
const (
Disabled Status = 0 // 禁用
Failure Status = 0 // 失败
Enabled Status = 1 // 启用
Running Status = 1 // 运行中
Finish Status = 2 // 完成
Cancel Status = 3 // 取消
Waiting Status = 5 // 等待中
)
const (
Page = 1 // 当前页数
PageSize = 20 // 每页多少条数据
MaxPageSize = 100000 // 每次最多取多少条
)
const DefaultTimeFormat = "2006-01-02 15:04:05"
type BaseModel struct {
Page int `xorm:"-"`
PageSize int `xorm:"-"`
}
func (model *BaseModel) parsePageAndPageSize(params CommonMap) {
page, ok := params["Page"]
if ok {
model.Page = page.(int)
}
pageSize, ok := params["PageSize"]
if ok {
model.PageSize = pageSize.(int)
}
if model.Page <= 0 {
model.Page = Page
}
if model.PageSize <= 0 || model.PageSize > MaxPageSize {
model.PageSize = PageSize
}
}
func (model *BaseModel) pageLimitOffset() int {
return (model.Page - 1) * model.PageSize
}
// 创建Db
func CreateDb() *xorm.Engine {
config := getDbConfig()
dsn := getDbEngineDSN(config["engine"], config)
engine, err := xorm.NewEngine(config["engine"], dsn)
if err != nil {
logger.Fatal("创建xorm引擎失败", err)
}
if config["prefix"] != "" {
// 设置表前缀
TablePrefix = config["prefix"]
mapper := core.NewPrefixMapper(core.SnakeMapper{}, config["prefix"])
engine.SetTableMapper(mapper)
}
// 本地环境开启日志
if macaron.Env == macaron.DEV {
engine.ShowSQL(true)
engine.Logger().SetLevel(core.LOG_DEBUG)
}
go keepDbAlived(engine)
return engine
}
// 创建临时数据库连接
func CreateTmpDb(config map[string]string) (*xorm.Engine, error) {
dsn := getDbEngineDSN(config["engine"], config)
return xorm.NewEngine(config["engine"], dsn)
}
// 获取数据库引擎DSN mysql,sqlite
func getDbEngineDSN(engine string, config map[string]string) string {
engine = strings.ToLower(engine)
var dsn string = ""
switch engine {
case "mysql":
dsn = fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=%s",
config["user"],
config["password"],
config["host"],
config["port"],
config["database"],
config["charset"])
}
return dsn
}
// 定时ping, 防止因数据库超时设置连接被断开
func keepDbAlived(engine *xorm.Engine) {
t := time.Tick(180 * time.Second)
for {
<- t
engine.Ping()
}
}
// 获取数据库配置
func getDbConfig() map[string]string {
var db map[string]string = make(map[string]string)
db["user"] = app.Setting.Key("db.user").String()
db["password"] = app.Setting.Key("db.password").String()
db["host"] = app.Setting.Key("db.host").String()
db["port"] = app.Setting.Key("db.port").String()
db["database"] = app.Setting.Key("db.database").String()
db["charset"] = app.Setting.Key("db.charset").String()
db["prefix"] = app.Setting.Key("db.prefix").String()
db["engine"] = app.Setting.Key("db.engine").String()
return db
}