71 lines
1.7 KiB
Go
71 lines
1.7 KiB
Go
package postgres
|
|
|
|
import (
|
|
"database/sql"
|
|
|
|
"github.com/kcotugno/tacitus"
|
|
)
|
|
|
|
const (
|
|
conf_columns = `product, last_trade_id`
|
|
conf_insert = `INSERT INTO confirmations (` + conf_columns +
|
|
`) VALUES ($1, $2) RETURNING id, ` + conf_columns + `;`
|
|
conf_find_product = `SELECT id, ` + conf_columns + ` FROM confirmations` +
|
|
`WHERE product = $1;`
|
|
conf_update = `UPDATE confirmation SET last_trade_id = $1 WHERE product = $2;`
|
|
)
|
|
|
|
type ConfirmationService struct {
|
|
client *client
|
|
}
|
|
|
|
func (s *ConfirmationService) Confirmation(product string) (Confirmation, error) {
|
|
var conf Confirmation
|
|
|
|
s.client.logQuery(conf_find_product, product)
|
|
|
|
res, err := s.client.QueryRow(conf_find_product, product)
|
|
if err != nil {
|
|
s.client.logError(conf_find_product, err, product)
|
|
return conf, err
|
|
}
|
|
|
|
err = row.Scan(&conf.Id, &conf.Product, &conf.LastTradeId)
|
|
if err != nil {
|
|
return conf, err
|
|
}
|
|
|
|
return conf, nil
|
|
}
|
|
|
|
func (s *ConfirmationService) CreateConfirmation(c Confirmation) (Confirmation, error) {
|
|
var conf Confirmation
|
|
|
|
s.client.logQuery(conf_insert, c.Product, c.LastTradeId)
|
|
|
|
res, err := s.client.QueryRow(conf_insert, c.Product, c.LastTradeId)
|
|
if err != nil {
|
|
s.client.logError(conf_insert, err, c.Product, c.LastTradeId)
|
|
|
|
return conf, err
|
|
}
|
|
|
|
err = row.Scan(&conf.Id, &conf.Product, &conf.LastTradeId)
|
|
if err != nil {
|
|
return conf, err
|
|
}
|
|
|
|
return conf, nil
|
|
}
|
|
|
|
func (s *ConfirmationService) UpdateConfirmation(c Confirmation) (Confirmation, error) {
|
|
s.client.logQuery(conf_insert, c.LastTradeId, c.Product)
|
|
|
|
res, err := s.client.Exec(conf_update, c.LastTradeId, c.Product)
|
|
if err != nil {
|
|
s.client.logError(conf_update, err, c.LastTradeId, c.Product)
|
|
}
|
|
|
|
return c, err
|
|
}
|