63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
// Package database define database operation functions
|
|
package database
|
|
|
|
import (
|
|
"context"
|
|
"time"
|
|
|
|
"modelRT/orm"
|
|
|
|
"gorm.io/gorm"
|
|
"gorm.io/gorm/clause"
|
|
)
|
|
|
|
// QueryMeasurementByID return the result of query circuit diagram component measurement info by id from postgresDB
|
|
func QueryMeasurementByID(ctx context.Context, tx *gorm.DB, id int64) (orm.Measurement, error) {
|
|
var measurement orm.Measurement
|
|
// ctx超时判断
|
|
cancelCtx, cancel := context.WithTimeout(ctx, 5*time.Second)
|
|
defer cancel()
|
|
result := tx.WithContext(cancelCtx).
|
|
Where("id = ?", id).
|
|
Clauses(clause.Locking{Strength: "UPDATE"}).
|
|
First(&measurement)
|
|
|
|
if result.Error != nil {
|
|
return orm.Measurement{}, result.Error
|
|
}
|
|
return measurement, nil
|
|
}
|
|
|
|
// QueryMeasurementByToken define function query circuit diagram component measurement info by token from postgresDB
|
|
func QueryMeasurementByToken(ctx context.Context, tx *gorm.DB, token string) (orm.Measurement, error) {
|
|
// TODO parse token to avoid SQL injection
|
|
|
|
var component orm.Measurement
|
|
// ctx超时判断
|
|
cancelCtx, cancel := context.WithTimeout(ctx, 5*time.Second)
|
|
defer cancel()
|
|
result := tx.WithContext(cancelCtx).
|
|
Where(" = ?", token).
|
|
Clauses(clause.Locking{Strength: "UPDATE"}).
|
|
First(&component)
|
|
|
|
if result.Error != nil {
|
|
return orm.Measurement{}, result.Error
|
|
}
|
|
return component, nil
|
|
}
|
|
|
|
// GetAllMeasurements define func to query all measurement info from postgresDB
|
|
func GetAllMeasurements(ctx context.Context, tx *gorm.DB) ([]orm.Measurement, error) {
|
|
var measurements []orm.Measurement
|
|
|
|
// ctx超时判断
|
|
cancelCtx, cancel := context.WithTimeout(ctx, 5*time.Second)
|
|
defer cancel()
|
|
result := tx.WithContext(cancelCtx).Clauses(clause.Locking{Strength: "UPDATE"}).Find(&measurements)
|
|
if result.Error != nil {
|
|
return nil, result.Error
|
|
}
|
|
return measurements, nil
|
|
}
|