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Merge pull request #1512 from c9s/c9s/fix-boll-history-kline-push
FIX: [bollmaker] fix bollinger indicator history kline push
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commit
cb1133b0e0
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@ -188,8 +188,9 @@ func (environ *Environment) ConfigureDatabase(ctx context.Context, config *Confi
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dbDriver = "mysql"
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}
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if dbDriver == "" {
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return fmt.Errorf("either env DB_DRIVER or config.Driver is not set")
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// database is optional
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if dbDriver == "" || dbDSN == "" {
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return nil
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}
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return environ.ConfigureDatabaseDriver(ctx, dbDriver, dbDSN, extraPkgNames...)
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@ -38,7 +38,6 @@ func BOLL(source types.Float64Source, window int, k float64) *BOLLStream {
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SMA: sma,
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StdDev: stdDev,
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}
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s.Bind(source, s)
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// on band update
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s.Float64Series.OnUpdate(func(band float64) {
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@ -46,6 +45,8 @@ func BOLL(source types.Float64Source, window int, k float64) *BOLLStream {
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s.UpBand.PushAndEmit(mid + band)
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s.DownBand.PushAndEmit(mid - band)
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})
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s.Bind(source, s)
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return s
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}
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