Exemplo n.º 1
0
func (gkDbCon *GkDbConDef) GetPodsList() ([]DbPodDef, *gkerr.GkErrDef) {
	var stmt *sql.Stmt
	var err error
	var dbPodsList []DbPodDef = make([]DbPodDef, 0, 0)

	stmt, err = gkDbCon.sqlDb.Prepare("select id, pod_title from pods")
	if err != nil {
		return nil, gkerr.GenGkErr("sql.Prepare"+getDatabaseErrorMessage(err), err, ERROR_ID_PREPARE)
	}

	defer stmt.Close()

	var rows *sql.Rows

	rows, err = stmt.Query()
	if err != nil {
		return nil, gkerr.GenGkErr("stmt.Query"+getDatabaseErrorMessage(err), err, ERROR_ID_QUERY)
	}

	defer rows.Close()

	for rows.Next() {
		var dbPod DbPodDef
		err = rows.Scan(&dbPod.Id, &dbPod.Title)
		if err != nil {
			return nil, gkerr.GenGkErr("rows.Scan"+getDatabaseErrorMessage(err), err, ERROR_ID_ROWS_SCAN)
		}
		dbPodsList = append(dbPodsList, dbPod)
	}

	return dbPodsList, nil
}
Exemplo n.º 2
0
// LookupBrand takes a prepared statment (using the BRAND_LOOKUP string),
// a bsin (brand id) string, and looks it up in POD, returning a list of
// matching BRAND structs
func LookupBrand(stmt *sql.Stmt, bsin string) ([]*BRAND, error) {
	results := make([]*BRAND, 0)

	rows, err := stmt.Query(bsin)
	if err != nil {
		return results, err
	}
	defer rows.Close()

	for rows.Next() {
		var n, u sql.NullString
		err := rows.Scan(&n, &u)
		if err != nil {
			return results, err
		} else {
			if n.Valid || u.Valid {
				result := new(BRAND)
				result.Id = bsin
				if n.Valid {
					result.Name = n.String
				}
				if u.Valid {
					result.URL = u.String
				}
				results = append(results, result)
			}
		}
	}

	return results, nil
}
Exemplo n.º 3
0
func sexDomain(dom string) (sexAnswer bool, err error) {
	var stmt *sql.Stmt

	stmt, err = db.Prepare(`SELECT dom FROM domains WHERE dom = $1 AND sex = true LIMIT 1`)

	if err != nil {
		fmt.Printf("db.Prepare error: %v\n", err)
		return false, err
	}

	var rows *sql.Rows

	rows, err = stmt.Query(dom)
	if err != nil {
		fmt.Printf("stmt.Query error: %v\n", err)
		return false, err
	}

	defer stmt.Close()
	if rows.Next() {
		var domain string

		err = rows.Scan(&domain)
		if err != nil {
			fmt.Printf("rows.Scan error: %v\n", err)
			return false, err
		}
		if configuration.Debug == "Yes" {
			fmt.Println("domain => \"" + domain + "\"")
		}
		return true, err
	}

	return false, nil
}
Exemplo n.º 4
0
func LookupBrandByName(stmt *sql.Stmt, brandName string) ([]*BRAND, error) {
	results := make([]*BRAND, 0)

	rows, err := stmt.Query(fmt.Sprintf("%s%%", brandName)) // like 'brandName%'
	if err != nil {
		return results, err
	}
	defer rows.Close()

	for rows.Next() {
		var i, n, u sql.NullString
		err := rows.Scan(&i, &n, &u)
		if err != nil {
			return results, err
		} else {
			if n.Valid || u.Valid {
				result := new(BRAND)
				result.Id = i.String
				if n.Valid {
					result.Name = n.String
				}
				if u.Valid {
					result.URL = u.String
				}
				results = append(results, result)
			}
		}
	}

	return results, nil
}
Exemplo n.º 5
0
func LoadEnvVarsOf(appName string) (envVars map[string]string, err error) {
	envVars = make(map[string]string)

	sq := "select k, v from env where app_name = ?"

	var stmt *sql.Stmt
	stmt, err = DB.Prepare(sq)
	if err != nil {
		log.Printf("[ERROR] prepare sql: %s fail: %v, params: [%s]", sq, err, appName)
		return
	}

	defer stmt.Close()

	var rows *sql.Rows
	rows, err = stmt.Query(appName)
	if err != nil {
		log.Printf("[ERROR] exec sql: %s fail: %v, params: [%s]", sq, err, appName)
		return
	}

	for rows.Next() {
		var k, v string
		err = rows.Scan(&k, &v)
		if err != nil {
			log.Printf("[ERROR] %s scan fail: %s", sq, err)
			return
		}

		envVars[k] = v
	}

	return
}
Exemplo n.º 6
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func LookupContributedBrand(stmt *sql.Stmt, brandName string) ([]*CONTRIBUTED_BRAND, error) {
	results := make([]*CONTRIBUTED_BRAND, 0)

	rows, err := stmt.Query(fmt.Sprintf("%s%%", brandName)) // like 'brandName%'
	if err != nil {
		return results, err
	}
	defer rows.Close()

	for rows.Next() {
		var i, n, u, a sql.NullString
		err := rows.Scan(&i, &n, &u, &a)
		if err != nil {
			return results, err
		} else {
			if n.Valid {
				result := new(CONTRIBUTED_BRAND)
				result.Uuid = i.String
				result.Name = n.String
				result.URL = u.String
				result.AccountID = a.String
				results = append(results, result)
			}
		}
	}

	return results, nil
}
Exemplo n.º 7
0
// LookupGtin takes a prepared statment (using the GTIN_LOOKUP string),
// a barcode string, and looks it up in POD, returning a list of matching
// GTIN structs
func LookupGtin(stmt *sql.Stmt, barcode string) ([]*GTIN, error) {
	results := make([]*GTIN, 0)

	rows, err := stmt.Query(barcode)
	if err != nil {
		return results, err
	}
	defer rows.Close()

	for rows.Next() {
		var p, b sql.NullString
		err := rows.Scan(&p, &b)
		if err != nil {
			return results, err
		} else {
			if p.Valid || b.Valid {
				result := new(GTIN)
				result.Id = barcode
				if p.Valid {
					result.ProductName = p.String
				}
				if b.Valid {
					result.BrandId = b.String
				}
				results = append(results, result)
			}
		}
	}

	return results, nil
}
Exemplo n.º 8
0
//获取所有任务的任务列表
func FetchTaskList() (int, *list.List) {
	var stmtIns *sql.Stmt
	var err error
	stmtIns, err = db.Prepare("select task_id, create_time from rdb_parse_task")

	if err != nil {
		logs.Log("fetch task list error in dbutil db.Prepare : " + err.Error())
		return -1, list.New()
	}

	defer stmtIns.Close()

	rows, errs := stmtIns.Query()

	if errs != nil {
		logs.Log("fetch task list error in dbutil stmtIns.Query : " + errs.Error())
		return -2, list.New()
	}

	taskList := list.New()

	var taskId string
	var createTime string
	for rows.Next() {
		var task Task
		rows.Scan(&taskId, &createTime)
		task.TaskId = taskId
		task.CreateTime = createTime
		taskList.PushBack(task)
	}
	return 1, taskList
}
Exemplo n.º 9
0
// return error if row not found
func (gkDbCon *GkDbConDef) GetUser(userName string) (*DbUserDef, *gkerr.GkErrDef) {
	var stmt *sql.Stmt
	var err error
	var dbUser *DbUserDef = new(DbUserDef)

	stmt, err = gkDbCon.sqlDb.Prepare("select id, user_name, password_hash, password_salt, email, account_creation_date, last_login_date from users where user_name = $1")
	if err != nil {
		return nil, gkerr.GenGkErr("sql.Prepare"+getDatabaseErrorMessage(err), err, ERROR_ID_PREPARE)
	}

	defer stmt.Close()

	var rows *sql.Rows

	rows, err = stmt.Query(userName)
	if err != nil {
		return nil, gkerr.GenGkErr("stmt.Query"+getDatabaseErrorMessage(err), err, ERROR_ID_QUERY)
	}

	defer rows.Close()

	if rows.Next() {
		err = rows.Scan(&dbUser.id, &dbUser.UserName, &dbUser.PasswordHash, &dbUser.PasswordSalt, &dbUser.Email, &dbUser.accountCreationDate, &dbUser.lastLoginDate)
		if err != nil {
			return nil, gkerr.GenGkErr("rows.Scan"+getDatabaseErrorMessage(err), err, ERROR_ID_ROWS_SCAN)
		}
	} else {
		return nil, gkerr.GenGkErr("select users", nil, ERROR_ID_NO_ROWS_FOUND)
	}

	return dbUser, nil
}
Exemplo n.º 10
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func getCustomerPrice(personId int, productId int, number int) ([]*model.CustomerPrice, error) {
	var conn *sql.DB
	var stmt *sql.Stmt
	var err error
	if conn, err = db.Connect(); err != nil {
		return nil, err
	}
	defer conn.Close()

	_sql := "select * from customer_special_price where person_id = ? and product_id = ? order by create_time DESC limit ?"
	if stmt, err = conn.Prepare(_sql); err != nil {
		return nil, err
	}
	defer stmt.Close()

	rows, err := stmt.Query(personId, productId, number)
	if err != nil {
		return nil, err
	}
	defer rows.Close()

	models := []*model.CustomerPrice{}
	for rows.Next() {
		m := new(model.CustomerPrice)
		var blackhole sql.NullInt64
		err := rows.Scan(&m.Id, &m.PersonId, &m.ProductId, &m.Price, &m.CreateTime, &blackhole /*&m.LastUsedTime */)
		if err != nil {
			panic(err)
		}
		models = append(models, m)
	}
	return models, nil
}
Exemplo n.º 11
0
func doSelect(res http.ResponseWriter, db *sql.DB) error {
	var stmt *sql.Stmt
	var err error

	stmt, err = db.Prepare(selectStatement)
	if err != nil {
		fmt.Printf("db.Prepare error: %v\n", err)
		return err
	}

	var rows *sql.Rows

	rows, err = stmt.Query()
	if err != nil {
		fmt.Printf("stmt.Query error: %v\n", err)
		return err
	}

	defer stmt.Close()

	for rows.Next() {
		var firstname string
		var lastname string

		err = rows.Scan(&firstname, &lastname)
		if err != nil {
			fmt.Printf("rows.Scan error: %v\n", err)
			return err
		}

		fmt.Fprintln(res, "firstname: "+firstname+"    lastname: "+lastname+"\n")
	}

	return nil
}
Exemplo n.º 12
0
func (gkDbCon *GkDbConDef) getNextChatArchivesId() (int32, *gkerr.GkErrDef) {
	var stmt *sql.Stmt
	var err error

	stmt, err = gkDbCon.sqlDb.Prepare("select nextval('chat_archives_seq')")
	if err != nil {
		return 0, gkerr.GenGkErr("sql.Prepare"+getDatabaseErrorMessage(err), err, ERROR_ID_PREPARE)
	}

	defer stmt.Close()

	var rows *sql.Rows

	rows, err = stmt.Query()
	if err != nil {
		return 0, gkerr.GenGkErr("stmt.Query"+getDatabaseErrorMessage(err), err, ERROR_ID_QUERY)
	}

	defer rows.Close()

	var id int32

	if rows.Next() {
		err = rows.Scan(&id)
		if err != nil {
			return 0, gkerr.GenGkErr("rows.Scan"+getDatabaseErrorMessage(err), err, ERROR_ID_ROWS_SCAN)
		}
	} else {
		return 0, gkerr.GenGkErr("select users", nil, ERROR_ID_NO_ROWS_FOUND)
	}

	return id, nil
}
Exemplo n.º 13
0
func executePopularNamesCheck(stmt *sql.Stmt, fk int64, table_name string, args [20]string) (bool, error) {
	rows, err := stmt.Query(
		fk,
		table_name,
		args[0], args[1], args[2], args[3], args[4],
		args[5], args[6], args[7], args[8], args[9],
		args[10], args[11], args[12], args[13], args[14],
		args[15], args[16], args[17], args[18], args[19])

	if err != nil {
		return false, errors.New("Query failed.")
	}

	defer rows.Close()

	for rows.Next() {
		var popular_name string

		err = rows.Scan(&popular_name)

		if err != nil {
			log.Printf("Checking failed: %v\n", err)
			return false, err
		}

		log.Printf("Name found: %s\n", popular_name)

		return false, nil
	}

	return true, nil
}
Exemplo n.º 14
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func (gkDbCon *GkDbConDef) getMaxChatId() (int32, *gkerr.GkErrDef) {
	var stmt *sql.Stmt
	var maxId int32 = 0
	var err error

	stmt, err = gkDbCon.sqlDb.Prepare("select max(id) from chat_archives")
	if err != nil {
		return 0, gkerr.GenGkErr("sql.Prepare"+getDatabaseErrorMessage(err), err, ERROR_ID_PREPARE)
	}

	defer stmt.Close()

	var rows *sql.Rows

	rows, err = stmt.Query()
	if err != nil {
		return 0, gkerr.GenGkErr("stmt.Query"+getDatabaseErrorMessage(err), err, ERROR_ID_QUERY)
	}

	defer rows.Close()

	if rows.Next() {
		err = rows.Scan(&maxId)
		if err != nil {
			return 0, gkerr.GenGkErr("rows.Scan"+getDatabaseErrorMessage(err), err, ERROR_ID_ROWS_SCAN)
		}
	}

	return maxId, nil
}
Exemplo n.º 15
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// no error return if row is not found
func (gkDbCon *GkDbConDef) GetContextUser(userName string) (*DbContextUserDef, bool, *gkerr.GkErrDef) {
	var stmt *sql.Stmt
	var err error
	var dbContextUser *DbContextUserDef = new(DbContextUserDef)
	var rowFound bool

	stmt, err = gkDbCon.sqlDb.Prepare("select context_users.id, context_users.last_position_x, context_users.last_position_y, context_users.last_position_z, context_users.last_pod from users, context_users where users.id = context_users.id and users.user_name = $1")
	if err != nil {
		return nil, false, gkerr.GenGkErr("sql.Prepare"+getDatabaseErrorMessage(err), err, ERROR_ID_PREPARE)
	}

	defer stmt.Close()

	var rows *sql.Rows

	rows, err = stmt.Query(userName)
	if err != nil {
		return nil, false, gkerr.GenGkErr("stmt.Query"+getDatabaseErrorMessage(err), err, ERROR_ID_QUERY)
	}

	defer rows.Close()

	if rows.Next() {
		err = rows.Scan(&dbContextUser.id, &dbContextUser.LastPositionX, &dbContextUser.LastPositionY, &dbContextUser.LastPositionZ, &dbContextUser.LastPod)
		if err != nil {
			return nil, false, gkerr.GenGkErr("rows.Scan"+getDatabaseErrorMessage(err), err, ERROR_ID_ROWS_SCAN)
		}
		rowFound = true
	} else {
		rowFound = false
	}

	return dbContextUser, rowFound, nil
}
Exemplo n.º 16
0
func LookupContributedBarcode(stmt *sql.Stmt, code string) ([]*BARCODE, error) {
	results := make([]*BARCODE, 0)

	rows, err := stmt.Query(code)
	if err != nil {
		return results, err
	}
	defer rows.Close()

	for rows.Next() {
		var (
			i, n, d, a sql.NullString
			e          sql.NullBool
		)
		err := rows.Scan(&i, &n, &d, &e, &a)
		if err != nil {
			return results, err
		} else {
			result := new(BARCODE)
			result.Barcode = code
			result.Uuid = i.String
			result.ProductName = n.String
			result.GtinEdit = e.Bool
			result.AccountID = a.String
			if d.Valid {
				result.ProductDesc = d.String
			}
			results = append(results, result)
		}
	}

	return results, nil
}
Exemplo n.º 17
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func getEntriesFromSth(stmt *sql.Stmt) (el []Entry, err error) {
	rows, err := stmt.Query()
	if err != nil {
		glog.Errorf("stmt.Query() %s", err)
		return el, err
	}
	return getEntriesFromRows(rows)
}
Exemplo n.º 18
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func getEntriesFromSthP(stmt *sql.Stmt, p string) (el []Entry, err error) {
	rows, err := stmt.Query(p)
	if err != nil {
		glog.Errorf("getEntriesFromSthP.Query(%s): %s", p, err)
		return el, err
	}
	return getEntriesFromRows(rows)
}
Exemplo n.º 19
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// getMealTagsPrepared fetches the list of tags associated with the meal
// identified by 'mealID'. 'stmt' is assumed to be a prepared statement compiled
// from "SELECT tag.tag FROM tag WHERE tag.mealid = ?".
func getMealTagsPrepared(stmt *sql.Stmt, mealID uint64) (tags []string, err error) {
	rows, err := stmt.Query(mealID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()

	return readTags(rows)
}
Exemplo n.º 20
0
Arquivo: mysql.go Projeto: api4me/next
func (mysql *Mysql) Query(args ...interface{}) ([]interface{}, error) {
	// Parse sql
	q, param, err := mysql.parseQuery(args...)
	if err != nil {
		return nil, err
	}

	var stmt *sql.Stmt
	// Prepare
	if mysql.Tx != nil {
		stmt, err = mysql.Tx.Prepare(q)
	} else {
		stmt, err = mysql.Db.Prepare(q)
	}
	if err != nil {
		return nil, err
	}
	defer stmt.Close()

	// -------------
	// Scan
	// -------------
	rows, err := stmt.Query(param...)
	if err != nil {
		return nil, err
	}
	defer rows.Close()

	// Get all col name
	cols, err := rows.Columns()
	if err != nil {
		return nil, err
	}

	// Scan value
	out := make([]interface{}, 0)
	for rows.Next() {
		rbs := make([]sql.RawBytes, len(cols))
		vals := make([]interface{}, len(cols))
		for i := range vals {
			vals[i] = &rbs[i]
		}

		if err = rows.Scan(vals...); err != nil {
			return nil, err
		}

		// Make map
		r := make(map[string]interface{}, len(cols))
		for i, val := range rbs {
			r[cols[i]] = string(val)
		}
		out = append(out, r)
	}

	return out, nil
}
Exemplo n.º 21
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func RawReadSlice(b *B) {
	var m *Model
	var stmt *sql.Stmt
	wrapExecute(b, func() {
		var err error
		initDB()
		m = NewModel()
		for i := 0; i < 100; i++ {
			err = rawInsert(m)
			if err != nil {
				fmt.Println(err)
				b.FailNow()
			}
		}
		stmt, err = raw.Prepare(rawSelectMultiSQL)
		if err != nil {
			fmt.Println(err)
			b.FailNow()
		}
	})
	defer stmt.Close()

	for i := 0; i < b.N; i++ {
		var j int
		models := make([]Model, 100)
		rows, err := stmt.Query()
		if err != nil {
			fmt.Println(err)
			b.FailNow()
		}
		for j = 0; rows.Next() && j < len(models); j++ {
			err = rows.Scan(
				&models[j].Id,
				&models[j].Name,
				&models[j].Title,
				&models[j].Fax,
				&models[j].Web,
				&models[j].Age,
				&models[j].Right,
				&models[j].Counter,
			)
			if err != nil {
				fmt.Println(err)
				b.FailNow()
			}
		}
		models = models[:j]
		if err = rows.Err(); err != nil {
			fmt.Println(err)
			b.FailNow()
		}
		if err = rows.Close(); err != nil {
			fmt.Println(err)
			b.FailNow()
		}
	}
}
Exemplo n.º 22
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func DailySalesData_alldata(startTime string, excludeYangYi bool) (model.ProductSales, error) {

	var conn *sql.DB
	var stmt *sql.Stmt
	var err error
	if conn, err = db.Connect(); err != nil {
		return nil, err
	}
	defer conn.Close()

	_sql := `
select
  DATE_FORMAT(o.create_time, '%Y-%m-%d'), sum(od.quantity)
from
  order_detail od 
  left join ` + "`" + `order` + "`" + ` o on od.order_track_number = o.track_number
where 
  o.type in (?,?)
  and o.status in (?,?,?,?)
  and o.create_time >= ?
  and od.product_id <> ?
group by
  DATE_FORMAT(o.create_time, '%Y-%m-%d')
order by
  DATE_FORMAT(o.create_time, '%Y-%m-%d') asc
`
	if stmt, err = conn.Prepare(_sql); err != nil {
		return nil, err
	}
	defer stmt.Close()

	var excluded_product_id = 0
	if excludeYangYi {
		excluded_product_id = base.STAT_EXCLUDED_PRODUCT
	}

	rows, err := stmt.Query(
		model.Wholesale, model.SubOrder, // model.ShippingInstead, // 查子订单
		"toprint", "todeliver", "delivering", "done",
		startTime, excluded_product_id,
	)

	if db.Err(err) {
		return nil, err
	}
	defer rows.Close() // db.CloseRows(rows) // use db.CloseRows or rows.Close()? Is rows always nun-nil?

	ps := model.ProductSales{}

	for rows.Next() {
		p := new(model.SalesNode)
		rows.Scan(&p.Key, &p.Value)
		ps = append(ps, p)
	}
	return ps, nil
}
Exemplo n.º 23
0
func SettleAccount(startTime, endTime time.Time, factoryId int64) (*model.ProductSalesTable, error) {
	var conn *sql.DB
	var stmt *sql.Stmt
	var err error
	if conn, err = db.Connect(); err != nil {
		return nil, err
	}
	defer conn.Close()

	startTime = startTime.UTC().Truncate(time.Hour * 24)
	endTime = endTime.UTC().Truncate(time.Hour*24).AddDate(0, 0, 1)

	_sql := `
select product_id, sum(stock), send_time
from inventory i
where 
  send_time >= ?
  and send_time <= ?
  and provider_id = ?
group by DATE_FORMAT(send_time, '%Y-%m-%d'), product_id
`
	if stmt, err = conn.Prepare(_sql); err != nil {
		return nil, err
	}
	defer stmt.Close()

	// now := time.Now()
	rows, err := stmt.Query(
		startTime,
		endTime,
		factoryId,
		// model.Wholesale, model.SubOrder, // model.ShippingInstead, // 查子订单
		// "toprint", "todeliver", "delivering", "done",
		// base.STAT_EXCLUDED_PRODUCT,
		// startTime,
		// startTime,
	)
	if db.Err(err) {
		return nil, err
	}
	defer rows.Close() // db.CloseRows(rows) // use db.CloseRows or rows.Close()? Is rows always nun-nil?

	// the final result
	ps := model.NewProductSalesTable()
	var (
		productId int64
		stock     int
		send_time time.Time
	)

	for rows.Next() {
		rows.Scan(&productId, &stock, &send_time)
		ps.Set(send_time.Format("2006-01-02"), productId, stock)
	}
	return ps, nil
}
Exemplo n.º 24
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func prepareSelect(db *sql.DB, query string, parameters ...interface{}) *sql.Rows {
	var err error
	var stmt *sql.Stmt
	var rows *sql.Rows
	stmt, err = db.Prepare(query)
	rows, err = stmt.Query(parameters...)
	if err != nil {
		log.Fatalf("Select error %q\n", err)
	}
	return rows
}
Exemplo n.º 25
0
func quotesExistForPastYear(stmt *sql.Stmt, symbol string, year int) bool {

	start_dt := strings.Join([]string{strconv.Itoa(year), "01", "01"}, "-")
	end_dt := strings.Join([]string{strconv.Itoa(year), "12", "31"}, "-")
	rows, err := stmt.Query(symbol, start_dt, end_dt)
	defer rows.Close()
	if err != nil {
		fmt.Printf("error running select query for symbol and year %s\n", err.Error())
		return false
	}
	return rows.Next()
}
Exemplo n.º 26
0
// --------------------------------------------------------------------------------
// Product's top buyer list. In product/detail page.
func ProductBestBuyerList(productId int) (model.BestBuyerList, error) {
	var conn *sql.DB
	var stmt *sql.Stmt
	var err error
	if conn, err = db.Connect(); err != nil {
		return nil, err
	}
	defer conn.Close()

	_sql := `
select -- d.product_id, p.Name, 
	o.customer_id, pp.Name, sum(d.quantity), d.selling_price ` +
		"from `order` o " +
		` right join order_detail d on d.order_track_number = o.track_number 
	left join product p on d.product_id = p.Id
	left join person pp on o.customer_id=pp.Id
where 
	-- and o.customer_id = 305
	d.product_id = ?
  and o.type in (?,?)
  and o.status in (?,?,?,?)
	-- and o.create_time >= "2015-08-14" -- and o.create_time < "2015-03-23 23:55:55"
	-- and o.track_number=1501161519337773 -- debug
group BY d.product_id, o.customer_id
order by sum(d.quantity) desc
`

	if stmt, err = conn.Prepare(_sql); err != nil {
		return nil, err
	}
	defer stmt.Close()

	rows, err := stmt.Query(
		productId,
		model.Wholesale, model.SubOrder, // model.ShippingInstead, // 查子订单
		"toprint", "todeliver", "delivering", "done",
	)

	if db.Err(err) {
		return nil, err
	}
	defer rows.Close() // db.CloseRows(rows) // use db.CloseRows or rows.Close()? Is rows always nun-nil?

	ps := model.BestBuyerList{}
	for rows.Next() {
		p := new(model.BestBuyerListItem)
		rows.Scan(&p.CustomerId, &p.CustomerName, &p.Quantity, &p.SalePrice)
		ps = append(ps, p)
	}
	return ps, nil
}
Exemplo n.º 27
0
func GetFamilyNames(db *sql.DB, table_name string, like string) ([]string, error) {
	defer recoverDbPanic()

	var stmt *sql.Stmt

	like = like + "%"

	family_names := []string{}

	switch table_name {
	case "coral":
		stmt = getStatement("coral_family_list", CORAL_FAMILY_NAMES_LIST_QUERY, db)
	case "invertebrate":
		stmt = getStatement("invertebrate_family_list", INVERTEBRATE_FAMILY_NAMES_LIST_QUERY, db)
	case "inhabitant":
		stmt = getStatement("inhabitant_family_list", INHABITANT_FAMILY_NAMES_LIST_QUERY, db)
	case "plant":
		stmt = getStatement("plant_family_list", PLANT_FAMILY_NAMES_LIST_QUERY, db)
		break
	}

	if stmt == nil {
		return family_names, errors.New("Query could not be created.")
	}

	rows, err := stmt.Query(like)

	defer rows.Close()

	if err != nil {
		log.Printf("Query err: %v\n", err)
		return family_names, err
	}

	for rows.Next() {
		family_name := ""

		err = rows.Scan(
			&family_name,
		)

		if err != nil {
			log.Printf("Scan err: %v\n", err)
			return family_names, err
		}

		family_names = append(family_names, family_name)
	}

	return family_names, err
}
Exemplo n.º 28
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func (this *mysql) Query(query string, args ...interface{}) (rows *sql.Rows,
	err error) {
	if this.db == nil {
		return nil, ErrNotOpen
	}
	if this.breaker.Open() {
		return nil, ErrCircuitOpen
	}

	var stmt *sql.Stmt = nil
	if this.stmtsStore != nil {
		if stmtc, present := this.stmtsStore.Get(query); present {
			stmt = stmtc.(*sql.Stmt)
		} else {
			// FIXME thundering hurd
			stmt, err = this.db.Prepare(query)
			if err != nil {
				if this.isSystemError(err) {
					log.Warn("mysql prepare breaks: %s", err.Error())
					this.breaker.Fail()
				}

				return nil, err
			}

			this.mutex.Lock()
			this.stmtsStore.Set(query, stmt)
			this.mutex.Unlock()
			log.Debug("[%s] stmt[%s] open", this.dsn, query)
		}
	}

	// Under the hood, db.Query() actually prepares, executes, and closes
	// a prepared statement. That's three round-trips to the database.
	if stmt != nil {
		rows, err = stmt.Query(args...)
	} else {
		rows, err = this.db.Query(query, args...)
	}
	if err != nil {
		if this.isSystemError(err) {
			log.Warn("mysql query breaks: %s", err.Error())
			this.breaker.Fail()
		}
	} else {
		this.breaker.Succeed()
	}

	return
}
Exemplo n.º 29
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func getNumThings(getCount *sql.Stmt) (int64, error) {
	r, err := getCount.Query()
	if err != nil {
		return -1, err
	}
	if !r.Next() {
		return -1, fmt.Errorf("Empty scan returned while querying %v", getCount)
	}
	var count int64
	if err := r.Scan(&count); err != nil {
		return -1, err
	}
	return count, nil
}
Exemplo n.º 30
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func selectThingID(getID *sql.Stmt, thing interface{}) (int64, error) {
	rows, err := getID.Query(thing)
	if err != nil {
		return -1, err
	}
	if !rows.Next() {
		return -1, fmt.Errorf("couldn't look up ID for %v", thing)
	}
	var id int64
	if err = rows.Scan(&id); err != nil {
		return -1, err
	}
	return id, nil
}