27 lines
703 B
Go
27 lines
703 B
Go
// Package database define database operation functions
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package database
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import (
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"context"
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"time"
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"modelRT/orm"
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"gorm.io/gorm"
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"gorm.io/gorm/clause"
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)
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// QueryStationByName return the result of query circuit diagram Station info by tagName from postgresDB
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func QueryStationByName(ctx context.Context, tx *gorm.DB, tagName string) (orm.Station, error) {
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var station orm.Station
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// ctx超时判断
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cancelCtx, cancel := context.WithTimeout(ctx, 5*time.Second)
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defer cancel()
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result := tx.WithContext(cancelCtx).Where("TAGNAME = ? ", tagName).Clauses(clause.Locking{Strength: "UPDATE"}).Find(&station)
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if result.Error != nil {
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return orm.Station{}, result.Error
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}
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return station, nil
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}
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