go-common/app/interface/main/kvo/dao/dao.go

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2019-04-22 10:49:16 +00:00
package dao
import (
"context"
"time"
"go-common/app/interface/main/kvo/conf"
"go-common/library/cache/memcache"
"go-common/library/database/sql"
)
// Dao kvo data access obj with bfs
type Dao struct {
cache *memcache.Pool
mcExpire int32
// http client for bfs req
db *sql.DB
// sql stmt
getUserConf *sql.Stmt
getDocument *sql.Stmt
}
// New new data access
func New(c *conf.Config) (d *Dao) {
d = &Dao{
cache: memcache.NewPool(c.Memcache.Kvo),
mcExpire: int32(time.Duration(c.Memcache.Expire) / time.Second),
db: sql.NewMySQL(c.Mysql),
}
d.getUserConf = d.db.Prepared(_getUserConf)
d.getDocument = d.db.Prepared(_getDocument)
return
}
// Ping check if health
func (d *Dao) Ping(ctx context.Context) (err error) {
if err = d.pingMemcache(ctx); err != nil {
return
}
if err = d.db.Ping(ctx); err != nil {
return
}
return
}
// BeginTx begin trans
func (d *Dao) BeginTx(c context.Context) (*sql.Tx, error) {
return d.db.Begin(c)
}