parser/data/data.go

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package data
import (
"database/sql"
"time"
"git.fuyu.moe/5GPowerQuality/parser/internal/model"
"git.ultraware.nl/NiseVoid/qb"
"git.ultraware.nl/NiseVoid/qb/qc"
"git.ultraware.nl/NiseVoid/qb/qf"
)
// GetMeterID gets the meter ID, if there is none yet a new record is add to meter
func GetMeterID(source Source, meterID string) (id int) {
me := model.Meter()
q := me.Select(me.ID).
Where(
qc.Eq(me.UID, meterID),
qc.Eq(me.Source, source),
)
err := db.QueryRow(q).Scan(&id)
switch err {
case nil:
case sql.ErrNoRows:
iq := me.Insert(me.Name, me.UID, me.Source).
Values(``, meterID, source)
err = db.QueryRow(qb.Returning(iq, me.ID)).Scan(&id)
if err != nil {
panic(err)
}
default:
panic(err)
}
return
}
// GetStartDate gets the last measurement date
func GetStartDate(source Source) time.Time {
m, me := model.Measurement(), model.Meter()
q := m.Select(qf.Max(m.Time)).
InnerJoin(me.ID, m.MeterID).
Where(qc.Eq(me.Source, source))
var t *time.Time
err := db.QueryRow(q).Scan(&t)
if (err == nil && t == nil) || err == sql.ErrNoRows {
return time.Date(2018, 4, 1, 0, 0, 0, 0, time.Local)
}
if err != nil {
panic(err)
}
*t = t.Add(time.Second)
return *t
}
func InsertSets(sets Sets) {
if len(sets) == 0 {
return
}
m := model.Measurement()
q := m.Insert(m.Time, m.MeterID,
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m.CGem1, m.CGem2, m.CGem3, m.CGemN,
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m.Ep1, m.Ep2, m.Ep3,
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m.IGem1, m.IGem2, m.IGem3, m.IGemN,
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m.IMax1, m.IMax2, m.IMax3,
m.PMax1, m.PMax2, m.PMax3,
m.SMax1, m.SMax2, m.SMax3,
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m.UGem1, m.UGem2, m.UGem3, m.UGemN,
m.BGem1, m.BGem2, m.BGem3, m.BGemN,
m.SGem1, m.SGem2, m.SGem3, m.SGemN,
m.PGem1, m.PGem2, m.PGem3, m.PGemN,
m.Ithd1, m.Ithd2, m.Ithd3, m.IthdN,
m.Uthd1, m.Uthd2, m.Uthd3, m.UthdN,
m.Freq,
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)
for k, v := range sets {
q.Values(k.Time, k.Meter,
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v[`CGem1`], v[`CGem2`], v[`CGem3`], ifExists(v, `CGemN`),
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v[`EP1`], v[`EP2`], v[`EP3`],
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v[`IGem1`], v[`IGem2`], v[`IGem3`], ifExists(v, `IGemN`),
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v[`IMax1`], v[`IMax2`], v[`IMax3`],
v[`PMax1`], v[`PMax2`], v[`PMax3`],
v[`SMax1`], v[`SMax2`], v[`SMax3`],
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v[`UGem1`], v[`UGem2`], v[`UGem3`], ifExists(v, `UGemN`),
v[`BGem1`], v[`BGem2`], v[`BGem3`], ifExists(v, `BGemN`),
v[`SGem1`], v[`SGem2`], v[`SGem3`], ifExists(v, `SGemN`),
v[`PGem1`], v[`PGem2`], v[`PGem3`], ifExists(v, `PGemN`),
v[`ITHD1`], v[`ITHD2`], v[`ITHD3`], ifExists(v, `ITHDN`),
v[`UTHD1`], v[`UTHD2`], v[`UTHD3`], ifExists(v, `UTHDN`),
v[`FREQ`],
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)
}
err := db.Exec(q)
if err != nil {
panic(err)
}
}
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func ifExists(set Set, k string) interface{} {
v, ok := set[k]
if !ok {
return nil
}
return v
}