Example #1
0
func (rows Rows) Next(dest []driver.Value) error {
	r := C.sqlite3_step(rows.stmt)
	if r == C.SQLITE_DONE {
		return io.EOF
	}
	if r != C.SQLITE_ROW {
		return stmtError(rows.stmt)
	}

	count := len(dest)
	for i := 0; i < count; i++ {
		t := C.sqlite3_column_type(rows.stmt, C.int(i))
		switch t {
		case C.SQLITE_INTEGER:
			dest[i] = int64(C.sqlite3_column_int64(rows.stmt, C.int(i)))
		case C.SQLITE_FLOAT:
			dest[i] = float64(C.sqlite3_column_double(rows.stmt, C.int(i)))
		case C.SQLITE_NULL:
			dest[i] = nil
		case C.SQLITE_TEXT:
			n := C.sqlite3_column_bytes(rows.stmt, C.int(i))
			blob := C.sqlite3_column_blob(rows.stmt, C.int(i))
			dest[i] = C.GoBytes(blob, n)
		default:
			panic("unsupported type")
		}
	}
	return nil
}
Example #2
0
File: driver.go Project: rsc/sqlite
func (r *rows) Next(dst []driver.Value) error {
	if r.s == nil {
		panic("database/sql/driver: misuse of sqlite driver: Next of closed Rows")
	}

	rv := C.sqlite3_step(r.s.stmt)
	if errno(rv) != stepRow {
		if errno(rv) == stepDone {
			return io.EOF
		}
		if rv == 0 {
			rv = 21
		}
		return r.s.c.error(rv)
	}

	for i := range dst {
		switch typ := C.sqlite3_column_type(r.s.stmt, C.int(i)); typ {
		default:
			return fmt.Errorf("unexpected sqlite3 column type %d", typ)
		case C.SQLITE_INTEGER:
			val := int64(C.sqlite3_column_int64(r.s.stmt, C.int(i)))
			switch r.s.coltypes[i] {
			case "timestamp", "datetime":
				dst[i] = time.Unix(val, 0).UTC()
			case "boolean":
				dst[i] = val > 0
			default:
				dst[i] = val
			}

		case C.SQLITE_FLOAT:
			dst[i] = float64(C.sqlite3_column_double(r.s.stmt, C.int(i)))

		case C.SQLITE_BLOB, C.SQLITE_TEXT:
			n := int(C.sqlite3_column_bytes(r.s.stmt, C.int(i)))
			var b []byte
			if n > 0 {
				p := C.sqlite3_column_blob(r.s.stmt, C.int(i))
				b = (*[maxslice]byte)(unsafe.Pointer(p))[:n]
			}
			dst[i] = b
			switch r.s.coltypes[i] {
			case "timestamp", "datetime":
				dst[i] = time.Time{}
				s := string(b)
				for _, f := range timefmt {
					if t, err := time.Parse(f, s); err == nil {
						dst[i] = t
						break
					}
				}
			}

		case C.SQLITE_NULL:
			dst[i] = nil
		}
	}
	return nil
}
Example #3
0
func (rc *SQLiteRows) Next(dest []driver.Value) error {
	rv := C.sqlite3_step(rc.s.s)
	if rv == C.SQLITE_DONE {
		return io.EOF
	}
	if rv != C.SQLITE_ROW {
		return errors.New(C.GoString(C.sqlite3_errmsg(rc.s.c.db)))
	}
	for i := range dest {
		switch C.sqlite3_column_type(rc.s.s, C.int(i)) {
		case C.SQLITE_INTEGER:
			dest[i] = int64(C.sqlite3_column_int64(rc.s.s, C.int(i)))
		case C.SQLITE_FLOAT:
			dest[i] = float64(C.sqlite3_column_double(rc.s.s, C.int(i)))
		case C.SQLITE_BLOB:
			n := int(C.sqlite3_column_bytes(rc.s.s, C.int(i)))
			p := C.sqlite3_column_blob(rc.s.s, C.int(i))
			dest[i] = (*[1 << 30]byte)(unsafe.Pointer(p))[0:n]
		case C.SQLITE_NULL:
			dest[i] = nil
		case C.SQLITE_TEXT:
			dest[i] = C.GoString((*C.char)(unsafe.Pointer(C.sqlite3_column_text(rc.s.s, C.int(i)))))
		}
	}
	return nil
}
Example #4
0
func (rc *SQLiteRows) Next(dest []driver.Value) error {
	rv := C.sqlite3_step(rc.s.s)
	if rv == C.SQLITE_DONE {
		return io.EOF
	}
	if rv != C.SQLITE_ROW {
		return errors.New(C.GoString(C.sqlite3_errmsg(rc.s.c.db)))
	}

	if rc.decltype == nil {
		rc.decltype = make([]string, rc.nc)
		for i := 0; i < rc.nc; i++ {
			rc.decltype[i] = strings.ToLower(C.GoString(C.sqlite3_column_decltype(rc.s.s, C.int(i))))
		}
	}

	for i := range dest {
		switch C.sqlite3_column_type(rc.s.s, C.int(i)) {
		case C.SQLITE_INTEGER:
			val := int64(C.sqlite3_column_int64(rc.s.s, C.int(i)))
			switch rc.decltype[i] {
			case "timestamp":
				dest[i] = time.Unix(val, 0)
			case "boolean":
				dest[i] = val > 0
			default:
				dest[i] = val
			}
		case C.SQLITE_FLOAT:
			dest[i] = float64(C.sqlite3_column_double(rc.s.s, C.int(i)))
		case C.SQLITE_BLOB:
			n := int(C.sqlite3_column_bytes(rc.s.s, C.int(i)))
			p := C.sqlite3_column_blob(rc.s.s, C.int(i))
			switch dest[i].(type) {
			case sql.RawBytes:
				dest[i] = (*[1 << 30]byte)(unsafe.Pointer(p))[0:n]
			default:
				slice := make([]byte, n)
				copy(slice[:], (*[1 << 30]byte)(unsafe.Pointer(p))[0:n])
				dest[i] = slice
			}
		case C.SQLITE_NULL:
			dest[i] = nil
		case C.SQLITE_TEXT:
			var err error
			s := C.GoString((*C.char)(unsafe.Pointer(C.sqlite3_column_text(rc.s.s, C.int(i)))))
			if rc.decltype[i] == "timestamp" {
				dest[i], err = time.Parse(SQLiteTimestampFormat, s)
				if err != nil {
					return err
				}
			} else {
				dest[i] = s
			}
		}
	}
	return nil
}
Example #5
0
func (s *Stmt) ColumnType(n int) ColType {
	switch C.sqlite3_column_type(s.stmt, C.int(n)) {
	case C.SQLITE_INTEGER:
		return Integer
	case C.SQLITE_FLOAT:
		return Float
	case C.SQLITE_BLOB:
		return Blob
	case C.SQLITE_NULL:
		return Null
	case C.SQLITE_TEXT:
		return Text
	}
	return Unknown
}
Example #6
0
// ColumnTypeScanType implement RowsColumnTypeScanType.
func (rc *SQLiteRows) ColumnTypeScanType(i int) reflect.Type {
	switch C.sqlite3_column_type(rc.s.s, C.int(i)) {
	case C.SQLITE_INTEGER:
		switch C.GoString(C.sqlite3_column_decltype(rc.s.s, C.int(i))) {
		case "timestamp", "datetime", "date":
			return reflect.TypeOf(time.Time{})
		case "boolean":
			return reflect.TypeOf(false)
		}
		return reflect.TypeOf(int64(0))
	case C.SQLITE_FLOAT:
		return reflect.TypeOf(float64(0))
	case C.SQLITE_BLOB:
		return reflect.SliceOf(reflect.TypeOf(byte(0)))
	case C.SQLITE_NULL:
		return reflect.TypeOf(nil)
	case C.SQLITE_TEXT:
		return reflect.TypeOf("")
	}
	return reflect.SliceOf(reflect.TypeOf(byte(0)))
}
Example #7
0
// Move cursor to next.
func (rc *SQLiteRows) Next(dest []driver.Value) error {
	rv := C.sqlite3_step(rc.s.s)
	if rv == C.SQLITE_DONE {
		return io.EOF
	}
	if rv != C.SQLITE_ROW {
		rv = C.sqlite3_reset(rc.s.s)
		if rv != C.SQLITE_OK {
			return rc.s.c.lastError()
		}
		return nil
	}

	if rc.decltype == nil {
		rc.decltype = make([]string, rc.nc)
		for i := 0; i < rc.nc; i++ {
			rc.decltype[i] = strings.ToLower(C.GoString(C.sqlite3_column_decltype(rc.s.s, C.int(i))))
		}
	}

	for i := range dest {
		switch C.sqlite3_column_type(rc.s.s, C.int(i)) {
		case C.SQLITE_INTEGER:
			val := int64(C.sqlite3_column_int64(rc.s.s, C.int(i)))
			switch rc.decltype[i] {
			case "timestamp", "datetime", "date":
				unixTimestamp := strconv.FormatInt(val, 10)
				var t time.Time
				if len(unixTimestamp) == 13 {
					duration, err := time.ParseDuration(unixTimestamp + "ms")
					if err != nil {
						return fmt.Errorf("error parsing %s value %d, %s", rc.decltype[i], val, err)
					}
					epoch := time.Date(1970, 1, 1, 0, 0, 0, 0, time.UTC)
					t = epoch.Add(duration)
				} else {
					t = time.Unix(val, 0)
				}
				if rc.s.c.loc != nil {
					t = t.In(rc.s.c.loc)
				}
				dest[i] = t
			case "boolean":
				dest[i] = val > 0
			default:
				dest[i] = val
			}
		case C.SQLITE_FLOAT:
			dest[i] = float64(C.sqlite3_column_double(rc.s.s, C.int(i)))
		case C.SQLITE_BLOB:
			p := C.sqlite3_column_blob(rc.s.s, C.int(i))
			if p == nil {
				dest[i] = nil
				continue
			}
			n := int(C.sqlite3_column_bytes(rc.s.s, C.int(i)))
			switch dest[i].(type) {
			case sql.RawBytes:
				dest[i] = (*[1 << 30]byte)(unsafe.Pointer(p))[0:n]
			default:
				slice := make([]byte, n)
				copy(slice[:], (*[1 << 30]byte)(unsafe.Pointer(p))[0:n])
				dest[i] = slice
			}
		case C.SQLITE_NULL:
			dest[i] = nil
		case C.SQLITE_TEXT:
			var err error
			var timeVal time.Time

			n := int(C.sqlite3_column_bytes(rc.s.s, C.int(i)))
			s := C.GoStringN((*C.char)(unsafe.Pointer(C.sqlite3_column_text(rc.s.s, C.int(i)))), C.int(n))

			switch rc.decltype[i] {
			case "timestamp", "datetime", "date":
				var t time.Time
				s = strings.TrimSuffix(s, "Z")
				for _, format := range SQLiteTimestampFormats {
					if timeVal, err = time.ParseInLocation(format, s, time.UTC); err == nil {
						t = timeVal
						break
					}
				}
				if err != nil {
					// The column is a time value, so return the zero time on parse failure.
					t = time.Time{}
				}
				if rc.s.c.loc != nil {
					t = t.In(rc.s.c.loc)
				}
				dest[i] = t
			default:
				dest[i] = []byte(s)
			}

		}
	}
	return nil
}
Example #8
0
func (self *sqlStatement) sqlColumnType(col int) int {
	return int(C.sqlite3_column_type(self.handle, C.int(col)))
}
Example #9
0
// ColumnType returns the datatype code for the initial data type of the result column.
// The leftmost column is number 0.
// Should not be cached (valid only for one row) (see dynamic type http://www.sqlite.org/datatype3.html)
//
// After a type conversion, the value returned by sqlite3_column_type() is undefined.
// (See sqlite3_column_type: http://sqlite.org/c3ref/column_blob.html)
func (s *Stmt) ColumnType(index int) Type {
	if index < 0 || index >= s.ColumnCount() {
		panic(fmt.Sprintf("column index %d out of range [0,%d[.", index, s.ColumnCount()))
	}
	return Type(C.sqlite3_column_type(s.stmt, C.int(index))) // TODO request all columns type at once
}
Example #10
0
// Move cursor to next.
func (rc *SQLiteRows) Next(dest []driver.Value) error {
	rv := C.sqlite3_step(rc.s.s)
	if rv == C.SQLITE_DONE {
		return io.EOF
	}
	if rv != C.SQLITE_ROW {
		rv = C.sqlite3_reset(rc.s.s)
		if rv != C.SQLITE_OK {
			return rc.s.c.lastError()
		}
		return nil
	}

	if rc.decltype == nil {
		rc.decltype = make([]string, rc.nc)
		for i := 0; i < rc.nc; i++ {
			rc.decltype[i] = strings.ToLower(C.GoString(C.sqlite3_column_decltype(rc.s.s, C.int(i))))
		}
	}

	for i := range dest {
		switch C.sqlite3_column_type(rc.s.s, C.int(i)) {
		case C.SQLITE_INTEGER:
			val := int64(C.sqlite3_column_int64(rc.s.s, C.int(i)))
			switch rc.decltype[i] {
			case "timestamp", "datetime":
				dest[i] = time.Unix(val, 0)
			case "boolean":
				dest[i] = val > 0
			default:
				dest[i] = val
			}
		case C.SQLITE_FLOAT:
			dest[i] = float64(C.sqlite3_column_double(rc.s.s, C.int(i)))
		case C.SQLITE_BLOB:
			p := C.sqlite3_column_blob(rc.s.s, C.int(i))
			if p == nil {
				dest[i] = nil
				continue
			}
			n := int(C.sqlite3_column_bytes(rc.s.s, C.int(i)))
			switch dest[i].(type) {
			case sql.RawBytes:
				dest[i] = (*[1 << 30]byte)(unsafe.Pointer(p))[0:n]
			default:
				slice := make([]byte, n)
				copy(slice[:], (*[1 << 30]byte)(unsafe.Pointer(p))[0:n])
				dest[i] = slice
			}
		case C.SQLITE_NULL:
			dest[i] = nil
		case C.SQLITE_TEXT:
			var err error
			s := C.GoString((*C.char)(unsafe.Pointer(C.sqlite3_column_text(rc.s.s, C.int(i)))))

			switch rc.decltype[i] {
			case "timestamp", "datetime":
				for _, format := range SQLiteTimestampFormats {
					if dest[i], err = time.Parse(format, s); err == nil {
						break
					}
				}
				if err != nil {
					// The column is a time value, so return the zero time on parse failure.
					dest[i] = time.Time{}
				}
			default:
				dest[i] = s
			}

		}
	}
	return nil
}
Example #11
0
// Move cursor to next.
func (rc *SQLiteRows) Next(dest []driver.Value) error {
	rv := C.sqlite3_step(rc.s.s)
	if rv == C.SQLITE_DONE {
		return io.EOF
	}
	if rv != C.SQLITE_ROW {
		rv = C.sqlite3_reset(rc.s.s)
		if rv != C.SQLITE_OK {
			return rc.s.c.lastError()
		}
		return nil
	}

	if rc.decltype == nil {
		rc.decltype = make([]string, rc.nc)
		for i := 0; i < rc.nc; i++ {
			rc.decltype[i] = strings.ToLower(C.GoString(C.sqlite3_column_decltype(rc.s.s, C.int(i))))
		}
	}

	for i := range dest {
		switch C.sqlite3_column_type(rc.s.s, C.int(i)) {
		case C.SQLITE_INTEGER:
			val := int64(C.sqlite3_column_int64(rc.s.s, C.int(i)))
			switch rc.decltype[i] {
			case "timestamp", "datetime", "date":
				var t time.Time
				// Assume a millisecond unix timestamp if it's 13 digits -- too
				// large to be a reasonable timestamp in seconds.
				if val > 1e12 || val < -1e12 {
					val *= int64(time.Millisecond) // convert ms to nsec
				} else {
					val *= int64(time.Second) // convert sec to nsec
				}
				t = time.Unix(0, val).UTC()
				if rc.s.c.loc != nil {
					t = t.In(rc.s.c.loc)
				}
				dest[i] = t
			case "boolean":
				dest[i] = val > 0
			default:
				dest[i] = val
			}
		case C.SQLITE_FLOAT:
			dest[i] = float64(C.sqlite3_column_double(rc.s.s, C.int(i)))
		case C.SQLITE_BLOB:
			p := C.sqlite3_column_blob(rc.s.s, C.int(i))
			if p == nil {
				dest[i] = nil
				continue
			}
			n := int(C.sqlite3_column_bytes(rc.s.s, C.int(i)))
			switch dest[i].(type) {
			case sql.RawBytes:
				dest[i] = (*[1 << 30]byte)(unsafe.Pointer(p))[0:n]
			default:
				slice := make([]byte, n)
				copy(slice[:], (*[1 << 30]byte)(unsafe.Pointer(p))[0:n])
				dest[i] = slice
			}
		case C.SQLITE_NULL:
			dest[i] = nil
		case C.SQLITE_TEXT:
			var err error
			var timeVal time.Time

			n := int(C.sqlite3_column_bytes(rc.s.s, C.int(i)))
			s := C.GoStringN((*C.char)(unsafe.Pointer(C.sqlite3_column_text(rc.s.s, C.int(i)))), C.int(n))

			switch rc.decltype[i] {
			case "timestamp", "datetime", "date":
				var t time.Time
				s = strings.TrimSuffix(s, "Z")
				for _, format := range SQLiteTimestampFormats {
					if timeVal, err = time.ParseInLocation(format, s, time.UTC); err == nil {
						t = timeVal
						break
					}
				}
				if err != nil {
					// The column is a time value, so return the zero time on parse failure.
					t = time.Time{}
				}
				if rc.s.c.loc != nil {
					t = t.In(rc.s.c.loc)
				}
				dest[i] = t
			default:
				dest[i] = []byte(s)
			}

		}
	}
	return nil
}
Example #12
0
func (c ResultColumn) Type(s *Statement) int {
	return int(C.sqlite3_column_type(s.cptr, C.int(c)))
}
Example #13
0
// The sqlite3_column_type() routine returns the datatype code for the initial
// data type of the result column. The returned value is one of SQLITE_INTEGER,
// SQLITE_FLOAT, SQLITE_TEXT, SQLITE_BLOB, or SQLITE_NULL
func (h *Statement) ColumnType(column int) int {
	return int(C.sqlite3_column_type(h.cptr, C.int(column)))
}
Example #14
0
File: stmt.go Project: pkf/gosqlite
// ColumnType returns the datatype code for the initial data type of the result column.
// The leftmost column is number 0.
// Should not be cached (valid only for one row) (see dynamic type http://www.sqlite.org/datatype3.html)
//
// After a type conversion, the value returned by sqlite3_column_type() is undefined.
// (See sqlite3_column_type: http://sqlite.org/c3ref/column_blob.html)
func (s *Stmt) ColumnType(index int) Type {
	return Type(C.sqlite3_column_type(s.stmt, C.int(index)))
}
Example #15
0
func (s *Stmt) Scan(args ...interface{}) error {
	n := int(C.sqlite3_column_count(s.stmt))
	if n != len(args) {
		return errors.New(fmt.Sprintf("incorrect argument count for Stmt.Scan: have %d want %d", len(args), n))
	}

	for i, v := range args {
		if C.sqlite3_column_type(s.stmt, C.int(i)) == C.SQLITE_NULL {
			switch v := v.(type) {
			case *[]byte:
				*v = nil
			case *string:
				*v = ""
			case *bool:
				*v = false
			case *int:
				*v = 0
			case *int64:
				*v = 0
			case *uint64:
				*v = 0
			case *uint32:
				*v = 0
			case *float64:
				*v = 0.0
			case *NullTime:
				*v = NullTime{Valid: false}
			default:
				return errors.New("unsupported type in Scan: " + reflect.TypeOf(v).String())
			}

		} else {

			n := C.sqlite3_column_bytes(s.stmt, C.int(i))
			p := C.sqlite3_column_blob(s.stmt, C.int(i))
			if p == nil && n > 0 {
				return errors.New("got nil blob")
			}
			var data []byte
			if n > 0 {
				data = (*[1 << 30]byte)(unsafe.Pointer(p))[0:n]
			}
			switch v := v.(type) {
			case *[]byte:
				*v = data
			case *string:
				*v = string(data)
			case *bool:
				*v = string(data) == "1"
			case *int:
				x, err := strconv.Atoi(string(data))
				if err != nil {
					return errors.New("arg " + strconv.Itoa(i) + " as int: " + err.Error())
				}
				*v = x
			case *int64:
				x, err := strconv.ParseInt(string(data), 10, 64)
				if err != nil {
					return errors.New("arg " + strconv.Itoa(i) + " as int64: " + err.Error())
				}
				*v = x
			case *uint64:
				x, err := strconv.ParseUint(string(data), 10, 64)
				if err != nil {
					return errors.New("arg " + strconv.Itoa(i) + " as int64: " + err.Error())
				}
				*v = x
			case *uint32:
				x, err := strconv.ParseUint(string(data), 10, 32)
				if err != nil {
					return errors.New("arg " + strconv.Itoa(i) + " as int64: " + err.Error())
				}
				*v = uint32(x)
			case *float64:
				x, err := strconv.ParseFloat(string(data), 64)
				if err != nil {
					return errors.New("arg " + strconv.Itoa(i) + " as float64: " + err.Error())
				}
				*v = x
			case *NullTime:
				x, err := time.Parse(ISO8601, string(data))
				if err != nil {
					return errors.New("arg " + strconv.Itoa(i) + " as time: " + err.Error())
				}
				*v = NullTime{Time: x, Valid: true}
			case *time.Time:
				x, err := time.Parse(ISO8601, string(data))
				if err != nil {
					return errors.New("arg " + strconv.Itoa(i) + " as time: " + err.Error())
				}
				*v = x

			default:
				return errors.New("unsupported type in Scan: " + reflect.TypeOf(v).String())
			}
		}
	}
	return nil
}
Example #16
0
// Move cursor to next.
func (rc *SQLiteRows) Next(dest []driver.Value) error {
	rv := C.sqlite3_step(rc.s.s)
	if rv == C.SQLITE_DONE {
		return io.EOF
	}
	if rv != C.SQLITE_ROW {
		return errors.New(C.GoString(C.sqlite3_errmsg(rc.s.c.db)))
	}

	if rc.decltype == nil {
		rc.decltype = make([]string, rc.nc)
		for i := 0; i < rc.nc; i++ {
			rc.decltype[i] = strings.ToLower(C.GoString(C.sqlite3_column_decltype(rc.s.s, C.int(i))))
		}
	}

	for i := range dest {
		switch C.sqlite3_column_type(rc.s.s, C.int(i)) {
		case C.SQLITE_INTEGER:
			val := int64(C.sqlite3_column_int64(rc.s.s, C.int(i)))
			switch rc.decltype[i] {
			case "timestamp", "datetime":
				dest[i] = time.Unix(val, 0)
			case "boolean":
				dest[i] = val > 0
			default:
				dest[i] = val
			}
		case C.SQLITE_FLOAT:
			dest[i] = float64(C.sqlite3_column_double(rc.s.s, C.int(i)))
		case C.SQLITE_BLOB:
			n := int(C.sqlite3_column_bytes(rc.s.s, C.int(i)))
			p := C.sqlite3_column_blob(rc.s.s, C.int(i))
			switch dest[i].(type) {
			case sql.RawBytes:
				dest[i] = (*[1 << 30]byte)(unsafe.Pointer(p))[0:n]
			default:
				slice := make([]byte, n)
				copy(slice[:], (*[1 << 30]byte)(unsafe.Pointer(p))[0:n])
				dest[i] = slice
			}
		case C.SQLITE_NULL:
			dest[i] = nil
		case C.SQLITE_TEXT:
			var err error
			s := C.GoString((*C.char)(unsafe.Pointer(C.sqlite3_column_text(rc.s.s, C.int(i)))))

			switch rc.decltype[i] {
			case "timestamp", "datetime":
				for _, format := range SQLiteTimestampFormats {
					if dest[i], err = time.Parse(format, s); err == nil {
						break
					}
				}
				if err != nil {
					// The column is a time value, so return the zero time on parse failure.
					dest[i] = time.Time{}
				}
			default:
				// NOTE(bradfitz): local hack, without internet access. I imagine
				// this has been fixed upstream properly. (the database/sql/driver
				// docs say that you can't return strings here)
				dest[i] = []byte(s)
			}

		}
	}
	return nil
}