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package dao |
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import ( |
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"context" |
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"time" |
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"math/rand" |
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"go-common/app/service/live/xlottery/conf" |
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"go-common/library/cache/redis" |
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xsql "go-common/library/database/sql" |
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"go-common/library/log" |
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) |
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// Dao dao |
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type Dao struct { |
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c *conf.Config |
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//mc *memcache.Pool |
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redis *redis.Pool |
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db *xsql.DB |
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} |
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// New init mysql db |
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func New(c *conf.Config) (dao *Dao) { |
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dao = &Dao{ |
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c: c, |
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redis: redis.NewPool(c.Redis.Lottery), |
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db: xsql.NewMySQL(c.Database.Lottery), |
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} |
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return |
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} |
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// Close close the resource. |
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func (d *Dao) Close() { |
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d.redis.Close() |
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d.db.Close() |
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} |
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// Ping dao ping |
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func (d *Dao) Ping(c context.Context) error { |
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return d.db.Ping(c) |
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} |
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// 通过提供的sql和bind来更新，没有实际业务意义，只是为了少写重复代码 |
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func (d *Dao) execSqlWithBindParams(c context.Context, sql *string, bindParams ...interface{}) (affect int64, err error) { |
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res, err := d.db.Exec(c, *sql, bindParams...) |
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if err != nil { |
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log.Error("db.Exec(%s) error(%v)", *sql, err) |
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return |
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} |
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return res.RowsAffected() |
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} |
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func randomString(l int) string { |
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str := "0123456789abcdefghijklmnopqrstuvwxyz" |
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bytes := []byte(str) |
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result := []byte{} |
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r := rand.New(rand.NewSource(time.Now().UnixNano())) |
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for i := 0; i < l; i++ { |
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result = append(result, bytes[r.Intn(len(bytes))]) |
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} |
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return string(result) |
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}
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