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126 lines
2.6 KiB
Go
126 lines
2.6 KiB
Go
package schema
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import (
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"fmt"
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"reflect"
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"strconv"
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"time"
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"github.com/uptrace/bun/dialect"
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)
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func Append(fmter Formatter, b []byte, v interface{}) []byte {
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switch v := v.(type) {
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case nil:
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return dialect.AppendNull(b)
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case bool:
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return dialect.AppendBool(b, v)
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case int:
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return strconv.AppendInt(b, int64(v), 10)
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case int32:
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return strconv.AppendInt(b, int64(v), 10)
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case int64:
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return strconv.AppendInt(b, v, 10)
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case uint:
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return strconv.AppendInt(b, int64(v), 10)
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case uint32:
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return fmter.Dialect().AppendUint32(b, v)
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case uint64:
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return fmter.Dialect().AppendUint64(b, v)
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case float32:
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return dialect.AppendFloat32(b, v)
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case float64:
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return dialect.AppendFloat64(b, v)
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case string:
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return fmter.Dialect().AppendString(b, v)
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case time.Time:
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return fmter.Dialect().AppendTime(b, v)
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case []byte:
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return fmter.Dialect().AppendBytes(b, v)
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case QueryAppender:
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return AppendQueryAppender(fmter, b, v)
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default:
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vv := reflect.ValueOf(v)
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if vv.Kind() == reflect.Ptr && vv.IsNil() {
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return dialect.AppendNull(b)
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}
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appender := Appender(fmter.Dialect(), vv.Type())
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return appender(fmter, b, vv)
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}
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}
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//------------------------------------------------------------------------------
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func In(slice interface{}) QueryAppender {
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v := reflect.ValueOf(slice)
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if v.Kind() != reflect.Slice {
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return &inValues{
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err: fmt.Errorf("bun: In(non-slice %T)", slice),
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}
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}
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return &inValues{
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slice: v,
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}
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}
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type inValues struct {
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slice reflect.Value
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err error
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}
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var _ QueryAppender = (*inValues)(nil)
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func (in *inValues) AppendQuery(fmter Formatter, b []byte) (_ []byte, err error) {
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if in.err != nil {
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return nil, in.err
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}
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return appendIn(fmter, b, in.slice), nil
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}
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func appendIn(fmter Formatter, b []byte, slice reflect.Value) []byte {
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sliceLen := slice.Len()
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if sliceLen == 0 {
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return dialect.AppendNull(b)
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}
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for i := 0; i < sliceLen; i++ {
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if i > 0 {
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b = append(b, ", "...)
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}
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elem := slice.Index(i)
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if elem.Kind() == reflect.Interface {
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elem = elem.Elem()
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}
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if elem.Kind() == reflect.Slice && elem.Type() != bytesType {
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b = append(b, '(')
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b = appendIn(fmter, b, elem)
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b = append(b, ')')
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} else {
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b = fmter.AppendValue(b, elem)
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}
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}
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return b
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}
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//------------------------------------------------------------------------------
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func NullZero(value interface{}) QueryAppender {
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return nullZero{
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value: value,
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}
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}
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type nullZero struct {
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value interface{}
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}
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func (nz nullZero) AppendQuery(fmter Formatter, b []byte) (_ []byte, err error) {
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if isZero(nz.value) {
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return dialect.AppendNull(b), nil
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}
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return fmter.AppendValue(b, reflect.ValueOf(nz.value)), nil
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}
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