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Merge pull request #425 from xxr3376/empty-bytes 

Treat []byte{} as empty BLOB instead of NULL.
This commit is contained in:
mattn 2017-06-15 10:15:43 +09:00 committed by GitHub
parent 83772a7051 3fa7ed2176
commit 83c59d8440
1 changed files with 7 additions and 4 deletions
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11
sqlite3.go
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@ -734,6 +734,8 @@ type bindArg struct {
v driver.Value v driver.Value
} }
var placeHolder byte = 0
func (s *SQLiteStmt) bind(args []namedValue) error { func (s *SQLiteStmt) bind(args []namedValue) error {
rv := C.sqlite3_reset(s.s) rv := C.sqlite3_reset(s.s)
if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE { if rv != C.SQLITE_ROW && rv != C.SQLITE_OK && rv != C.SQLITE_DONE {
@ -755,8 +757,7 @@ func (s *SQLiteStmt) bind(args []namedValue) error {
rv = C.sqlite3_bind_null(s.s, n) rv = C.sqlite3_bind_null(s.s, n)
case string: case string:
if len(v) == 0 { if len(v) == 0 {
b := []byte{0} rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&placeHolder)), C.int(0))
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(0))
} else { } else {
b := []byte(v) b := []byte(v)
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b))) rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))
@ -772,11 +773,13 @@ func (s *SQLiteStmt) bind(args []namedValue) error {
case float64: case float64:
rv = C.sqlite3_bind_double(s.s, n, C.double(v)) rv = C.sqlite3_bind_double(s.s, n, C.double(v))
case []byte: case []byte:
var ptr *byte
if len(v) == 0 { if len(v) == 0 {
rv = C._sqlite3_bind_blob(s.s, n, nil, 0) ptr = &placeHolder
} else { } else {
rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(&v[0]), C.int(len(v))) ptr = &v[0]
} }
rv = C._sqlite3_bind_blob(s.s, n, unsafe.Pointer(ptr), C.int(len(v)))
case time.Time: case time.Time:
b := []byte(v.Format(SQLiteTimestampFormats[0])) b := []byte(v.Format(SQLiteTimestampFormats[0]))
rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b))) rv = C._sqlite3_bind_text(s.s, n, (*C.char)(unsafe.Pointer(&b[0])), C.int(len(b)))