/
order.go
101 lines (75 loc) · 2.23 KB
/
order.go
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package db
import (
"fmt"
"log"
"time"
)
//Order -
type Order struct {
Orderid string `json:"order_id"`
Description string `json:"description"`
Created time.Time `json:"created"`
}
type RowsAffected struct {
RowsAffected int64
}
func (s *Server) GetOrder(order_id string) ([]Order, error) {
tsql := fmt.Sprintf("SELECT * FROM Orders WHERE order_id=@p1;")
return s.query(tsql, order_id)
}
func (s *Server) GetOrders() ([]Order, error) {
tsql := fmt.Sprintf("SELECT * FROM Orders;")
return s.query(tsql, nil)
}
func (s *Server) AddOrder(order_id string, description string) ([]Order, error) {
tsql := fmt.Sprintf("INSERT INTO Orders(order_id, description) VALUES(@p1,@p2);")
_, err := s.exec(tsql, order_id, description)
if err != nil {
return nil, err
}
tsql = fmt.Sprintf("SELECT * FROM Orders WHERE order_id=@p1;")
return s.query(tsql, order_id, description)
}
func (s *Server) EditOrder(order_id string, description string) (RowsAffected, error) {
tsql := fmt.Sprintf("UPDATE Orders SET description=@p2 WHERE order_id=@p1")
return s.exec(tsql, order_id, description)
}
func (s *Server) DeleteOrder(order_id string) (RowsAffected, error) {
tsql := fmt.Sprintf("DELETE FROM Orders WHERE order_id=@p1")
return s.exec(tsql, order_id)
}
func (s *Server) exec(tsql string, args ...interface{}) (RowsAffected, error) {
s.getConnection()
rowsAffectedResult := RowsAffected{}
rowsAffectedResult.RowsAffected = 0
log.Printf("Executing SQL: %s \n", tsql)
log.Printf("With args: %s \n", args...)
result, err := s.db.Exec(tsql, args...)
if err != nil {
return rowsAffectedResult, err
}
num, _ := result.RowsAffected()
rowsAffectedResult.RowsAffected = num
return rowsAffectedResult, nil
}
func (s *Server) query(tsql string, args ...interface{}) ([]Order, error) {
s.getConnection()
order := Order{}
orders := []Order{}
log.Printf("Executing SQL: %s \n", tsql)
log.Printf("With args: %s \n", args...)
rows, err := s.db.Query(tsql, args...)
if err != nil {
log.Println("failed...")
return nil, err
}
defer rows.Close()
for rows.Next() {
err := rows.Scan(&order.Orderid, &order.Description, &order.Created)
if err != nil {
return nil, err
}
orders = append(orders, order)
}
return orders, nil
}