func (s *SQLiteStmt) exec(ctx context.Context, args []namedValue) (driver.Result, error) {
if err := s.bind(args); err != nil {
C.sqlite3_reset(s.s)
C.sqlite3_clear_bindings(s.s)
return nil, err
}
done := make(chan struct{})
defer close(done)
go func() {
select {
case <-ctx.Done():
C.sqlite3_interrupt(s.c.db)
case <-done:
}
}()
var rowid, changes C.longlong
rv := C._sqlite3_step(s.s, &rowid, &changes)
if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
err := s.c.lastError()
C.sqlite3_reset(s.s)
C.sqlite3_clear_bindings(s.s)
return nil, err
}
return &SQLiteResult{id: int64(rowid), changes: int64(changes)}, nil
}
// Close the rows.
func (rc *SQLiteRows) Close() error {
rv := C.sqlite3_reset(rc.s.s)
if rv != C.SQLITE_OK {
return ErrNo(rv)
}
return nil
}
// Close the rows.
func (rc *SQLiteRows) Close() error {
rv := C.sqlite3_reset(rc.s.s)
if rv != C.SQLITE_OK {
return errors.New(C.GoString(C.sqlite3_errmsg(rc.s.c.db)))
}
return nil
}
func (s *Stmt) Exec(args ...interface{}) error {
s.args = fmt.Sprintf(" %v", []interface{}(args))
rv := C.sqlite3_reset(s.stmt)
if rv != 0 {
return s.c.error(rv)
}
n := int(C.sqlite3_bind_parameter_count(s.stmt))
if n != len(args) {
return errors.New(fmt.Sprintf("incorrect argument count for Stmt.Exec: have %d want %d", len(args), n))
}
for i, v := range args {
var str string
var rv C.int
if v == nil {
rv = C.sqlite3_bind_null(s.stmt, C.int(i+1))
} else {
switch v := v.(type) {
case []byte:
var p *byte
if len(v) > 0 {
p = &v[0]
}
if rv := C.my_bind_blob(s.stmt, C.int(i+1), unsafe.Pointer(p), C.int(len(v))); rv != 0 {
return s.c.error(rv)
}
continue
case bool:
if v {
str = "1"
} else {
str = "0"
}
case time.Time:
str = v.In(time.UTC).Format(ISO8601)
case NullTime:
if v.Valid {
str = v.Time.Format(ISO8601)
} else {
if rv := C.sqlite3_bind_null(s.stmt, C.int(i+1)); rv != 0 {
return s.c.error(rv)
}
continue
}
default:
str = fmt.Sprint(v)
}
cstr := C.CString(str)
rv = C.my_bind_text(s.stmt, C.int(i+1), cstr, C.int(len(str)))
C.free(unsafe.Pointer(cstr))
}
if rv != 0 {
return s.c.error(rv)
}
}
return nil
}
func (s *Stmt) Exec(args ...interface{}) error {
s.args = fmt.Sprintf(" %v", []interface{}(args))
rv := C.sqlite3_reset(s.stmt)
if rv != 0 {
return s.c.error(rv)
}
n := int(C.sqlite3_bind_parameter_count(s.stmt))
if n != len(args) {
return errors.New(fmt.Sprintf("incorrect argument count for Stmt.Exec: have %d want %d", len(args), n))
}
for i, v := range args {
var str string
switch v := v.(type) {
case []byte:
var p *byte
if len(v) > 0 {
p = &v[0]
}
if rv := C.my_bind_blob(s.stmt, C.int(i+1), unsafe.Pointer(p), C.int(len(v))); rv != 0 {
return s.c.error(rv)
}
continue
case nil:
if rv := C.sqlite3_bind_null(s.stmt, C.int(i+1)); rv != 0 {
return s.c.error(rv)
}
continue
case int:
if rv := C.sqlite3_bind_int(s.stmt, C.int(i+1), C.int(v)); rv != 0 {
return s.c.error(rv)
}
continue
case bool:
intVal := 0
if v {
intVal = 1
}
if rv := C.sqlite3_bind_int(s.stmt, C.int(i+1), C.int(intVal)); rv != 0 {
return s.c.error(rv)
}
continue
default:
str = fmt.Sprint(v)
}
cstr := C.CString(str)
rv := C.my_bind_text(s.stmt, C.int(i+1), cstr, C.int(len(str)))
C.free(unsafe.Pointer(cstr))
if rv != 0 {
return s.c.error(rv)
}
}
return nil
}
// Execute the statement with arguments. Return result object.
func (s *SQLiteStmt) Exec(args []driver.Value) (driver.Result, error) {
if err := s.bind(args); err != nil {
C.sqlite3_reset(s.s)
C.sqlite3_clear_bindings(s.s)
return nil, err
}
var rowid, changes C.longlong
rv := C._sqlite3_step(s.s, &rowid, &changes)
if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
err := s.c.lastError()
C.sqlite3_reset(s.s)
C.sqlite3_clear_bindings(s.s)
return nil, err
}
return &SQLiteResult{int64(rowid), int64(changes)}, nil
}
// Execute the statement with arguments. Return result object.
func (s *SQLiteStmt) Exec(args []driver.Value) (driver.Result, error) {
if err := s.bind(args); err != nil {
C.sqlite3_reset(s.s)
return nil, err
}
rv := C.sqlite3_step(s.s)
if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
C.sqlite3_reset(s.s)
return nil, s.c.lastError()
}
res := &SQLiteResult{
int64(C._sqlite3_last_insert_rowid(s.c.db)),
int64(C._sqlite3_changes(s.c.db)),
}
return res, nil
}
func (s *Stmt) exec() error {
rv := C.sqlite3_step(s.stmt)
C.sqlite3_reset(s.stmt)
if Errno(rv) != Done {
return s.error(rv, "Stmt.exec")
}
return nil
}
// Reset returns the prepared statement to its initial state, ready to be
// re-executed. This should be done when the remaining rows returned by a query
// are not needed, which releases some resources that would otherwise persist
// until the next call to Exec or Query.
// [http://www.sqlite.org/c3ref/reset.html]
func (s *Stmt) Reset() {
if s.haveRow {
s.haveRow = false
C.sqlite3_reset(s.stmt)
if s.nVars > 0 {
C.sqlite3_clear_bindings(s.stmt)
}
}
}
// Close the rows.
func (rc *SQLiteRows) Close() error {
if rc.s.closed {
return nil
}
rv := C.sqlite3_reset(rc.s.s)
if rv != C.SQLITE_OK {
return rc.s.c.lastError()
}
return nil
}
func (s *SQLiteStmt) bind(args []driver.Value) error {
rv := C.sqlite3_reset(s.s)
if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
return s.c.lastError()
}
for i, v := range args {
n := C.int(i + 1)
switch v := v.(type) {
case nil:
rv = C.sqlite3_bind_null(s.s, n)
case string:
if len(v) == 0 {
b := []byte{0}
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(0))
} else {
b := []byte(v)
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
}
case int:
rv = C.sqlite3_bind_int64(s.s, n, C.sqlite3_int64(v))
case int32:
rv = C.sqlite3_bind_int(s.s, n, C.int(v))
case int64:
rv = C.sqlite3_bind_int64(s.s, n, C.sqlite3_int64(v))
case byte:
rv = C.sqlite3_bind_int(s.s, n, C.int(v))
case bool:
if bool(v) {
rv = C.sqlite3_bind_int(s.s, n, 1)
} else {
rv = C.sqlite3_bind_int(s.s, n, 0)
}
case float32:
rv = C.sqlite3_bind_double(s.s, n, C.double(v))
case float64:
rv = C.sqlite3_bind_double(s.s, n, C.double(v))
case []byte:
var p *byte
if len(v) > 0 {
p = &v[0]
}
rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(p), C.int(len(v)))
case time.Time:
b := []byte(v.UTC().Format(SQLiteTimestampFormats[0]))
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
}
if rv != C.SQLITE_OK {
return s.c.lastError()
}
}
return nil
}
func (s *SQLiteStmt) bind(args []namedValue) error {
rv := C.sqlite3_reset(s.s)
if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
return s.c.lastError()
}
for i, v := range args {
if v.Name != "" {
cname := C.CString(":" + v.Name)
args[i].Ordinal = int(C.sqlite3_bind_parameter_index(s.s, cname))
C.free(unsafe.Pointer(cname))
}
}
for _, arg := range args {
n := C.int(arg.Ordinal)
switch v := arg.Value.(type) {
case nil:
rv = C.sqlite3_bind_null(s.s, n)
case string:
if len(v) == 0 {
b := []byte{0}
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(0))
} else {
b := []byte(v)
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
}
case int64:
rv = C.sqlite3_bind_int64(s.s, n, C.sqlite3_int64(v))
case bool:
if bool(v) {
rv = C.sqlite3_bind_int(s.s, n, 1)
} else {
rv = C.sqlite3_bind_int(s.s, n, 0)
}
case float64:
rv = C.sqlite3_bind_double(s.s, n, C.double(v))
case []byte:
if len(v) == 0 {
rv = C._sqlite3_bind_blob(s.s, n, nil, 0)
} else {
rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(&v[0]), C.int(len(v)))
}
case time.Time:
b := []byte(v.Format(SQLiteTimestampFormats[0]))
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
}
if rv != C.SQLITE_OK {
return s.c.lastError()
}
}
return nil
}
// Next evaluates an SQL statement
//
// With custom error handling:
// for {
// if ok, err := s.Next(); err != nil {
// return nil, err
// } else if !ok {
// break
// }
// err = s.Scan(&fnum, &inum, &sstr)
// }
// With panic on error:
// for Must(s.Next()) {
// err := s.Scan(&fnum, &inum, &sstr)
// }
//
// (See http://sqlite.org/c3ref/step.html)
func (s *Stmt) Next() (bool, error) {
rv := C.sqlite3_step(s.stmt)
err := Errno(rv)
if err == Row {
return true, nil
}
C.sqlite3_reset(s.stmt)
if err != Done {
return false, s.error(rv, "Stmt.Next")
}
// TODO Check column count > 0
return false, nil
}
// Next evaluates an SQL statement
//
// With custom error handling:
// for {
// if ok, err := s.Next(); err != nil {
// return nil, err
// } else if !ok {
// break
// }
// err = s.Scan(&fnum, &inum, &sstr)
// }
//
// (See http://sqlite.org/c3ref/step.html)
func (s *Stmt) Next() (bool, error) {
rv := C.sqlite3_step(s.stmt)
err := Errno(rv)
if err == Row {
return true, nil
}
C.sqlite3_reset(s.stmt) // Release implicit lock as soon as possible (see dbEvalStep in tclsqlite3.c)
if err != Done {
return false, s.error(rv, "Stmt.Next")
}
// TODO Check column count > 0
return false, nil
}
func (s *Stmt) exec() error {
rv := C.sqlite3_step(s.stmt)
C.sqlite3_reset(s.stmt)
err := Errno(rv)
if err != Done {
if err == Row {
return s.specificError("don't use exec with anything that returns data such as %q", s.SQL())
}
return s.error(rv, "Stmt.exec")
}
if s.ColumnCount() > 0 {
return s.specificError("don't use exec with anything that returns data such as %q", s.SQL())
}
return nil
}
func (s *SQLiteStmt) bind(args []interface{}) error {
rv := C.sqlite3_reset(s.s)
if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
return errors.New(C.GoString(C.sqlite3_errmsg(s.c.db)))
}
for i, v := range args {
n := C.int(i + 1)
switch v := v.(type) {
case nil:
rv = C.sqlite3_bind_null(s.s, n)
case string:
if len(v) == 0 {
b := []byte{0}
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(0))
} else {
b := []byte(v)
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
}
case int:
rv = C.sqlite3_bind_int(s.s, n, C.int(v))
case int64:
rv = C.sqlite3_bind_int64(s.s, n, C.sqlite3_int64(v))
case byte:
rv = C.sqlite3_bind_int(s.s, n, C.int(v))
case bool:
if bool(v) {
rv = C.sqlite3_bind_int(s.s, n, -1)
} else {
rv = C.sqlite3_bind_int(s.s, n, 0)
}
case float32:
rv = C.sqlite3_bind_double(s.s, n, C.double(v))
case float64:
rv = C.sqlite3_bind_double(s.s, n, C.double(v))
case []byte:
var p *byte
if len(v) > 0 {
p = &v[0]
}
rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(p), C.int(len(v)))
}
if rv != C.SQLITE_OK {
return errors.New(C.GoString(C.sqlite3_errmsg(s.c.db)))
}
}
return nil
}
func (s *Stmt) Exec(args ...interface{}) os.Error {
var rv C.int
var str string
var cstr *C.char
if rv = C.sqlite3_reset(s.stmt); rv != 0 {
return s.c.error(rv)
}
if n := int(C.sqlite3_bind_parameter_count(s.stmt)); n != len(args) {
return os.NewError(fmt.Sprintf("incorrect argument count: have %d, want %d", len(args), n))
}
for i, v := range args {
switch v := v.(type) {
case []byte:
var p *byte
if len(v) > 0 {
p = &v[0]
}
if rv = C.my_bind_blob(s.stmt, C.int(i+1), unsafe.Pointer(p), C.int(len(v))); rv != 0 {
return s.c.error(rv)
}
continue
case bool:
if v {
str = "1"
} else {
str = "0"
}
default:
str = fmt.Sprint(v)
}
cstr = C.CString(str)
rv = C.my_bind_text(s.stmt, C.int(i+1), cstr, C.int(len(str)))
C.free(unsafe.Pointer(cstr))
if rv != 0 {
return s.c.error(rv)
}
}
return nil
}
// step evaluates the next step in the statement's program, automatically
// resetting the statement if the result is anything other than SQLITE_ROW.
func (s *Stmt) step() error {
s.colTypes = s.colTypes[:0]
s.haveRow = C.sqlite3_step(s.stmt) == ROW
if !s.haveRow {
// If step returned DONE, reset returns OK. Otherwise, reset returns the
// same error code as step (v2 interface).
rc := C.sqlite3_reset(s.stmt)
if s.nVars > 0 {
C.sqlite3_clear_bindings(s.stmt)
}
if rc != OK {
return libErr(rc, s.conn.db)
}
}
return nil
}
// 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
}
func (rows Rows) Close() error {
if C.sqlite3_reset(rows.stmt) != C.SQLITE_OK {
return driver.ErrBadConn
}
return nil
}
func (s *SQLiteStmt) bind(args []driver.Value) error {
rv := C.sqlite3_reset(s.s)
if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
return s.c.lastError()
}
var vargs []bindArg
narg := len(args)
vargs = make([]bindArg, narg)
if len(s.nn) > 0 {
for i, v := range s.nn {
if pi, err := strconv.Atoi(v[1:]); err == nil {
vargs[i] = bindArg{pi, args[i]}
}
}
} else {
for i, v := range args {
vargs[i] = bindArg{i + 1, v}
}
}
for _, varg := range vargs {
n := C.int(varg.n)
v := varg.v
switch v := v.(type) {
case nil:
rv = C.sqlite3_bind_null(s.s, n)
case string:
if len(v) == 0 {
b := []byte{0}
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(0))
} else {
b := []byte(v)
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
}
case int64:
rv = C.sqlite3_bind_int64(s.s, n, C.sqlite3_int64(v))
case bool:
if bool(v) {
rv = C.sqlite3_bind_int(s.s, n, 1)
} else {
rv = C.sqlite3_bind_int(s.s, n, 0)
}
case float64:
rv = C.sqlite3_bind_double(s.s, n, C.double(v))
case []byte:
var p *byte
if len(v) > 0 {
p = &v[0]
}
rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(p), C.int(len(v)))
case time.Time:
b := []byte(v.UTC().Format(SQLiteTimestampFormats[0]))
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
}
if rv != C.SQLITE_OK {
return s.c.lastError()
}
}
return nil
}
func (s *Stmt) Reset() error {
C.sqlite3_reset(s.stmt)
return nil
}
func (self *sqlStatement) sqlReset() int {
return int(C.sqlite3_reset(self.handle))
}
// 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
}
// Reset terminates the current execution of an SQL statement
// and reset it back to its starting state so that it can be reused.
// (See http://sqlite.org/c3ref/reset.html)
func (s *Stmt) Reset() error {
return s.error(C.sqlite3_reset(s.stmt), "Stmt.Reset")
}
func (s *Statement) Reset() os.Error {
if e := Errno(C.sqlite3_reset(s.cptr)); e != OK {
return e
}
return nil
}
func (s *stmt) reset() error {
return s.c.error(C.sqlite3_reset(s.stmt))
}
// Reset may be used to reset the statement to its initial state, ready to
// be re-executed.
//
// Any SQL statement variables that had values bound to them retain
// their values. Use `ClearBindings` to reset the bindings.
func (s *Statement) Reset() error {
return SQLiteError(C.sqlite3_reset(s.cptr))
}
// 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
}
