mirror of
https://codeberg.org/superseriousbusiness/gotosocial.git
synced 2024-12-30 04:48:18 +03:00
395 lines
8.4 KiB
Go
395 lines
8.4 KiB
Go
package pgdialect
|
|
|
|
import (
|
|
"database/sql/driver"
|
|
"encoding/hex"
|
|
"fmt"
|
|
"reflect"
|
|
"strconv"
|
|
"time"
|
|
"unicode/utf8"
|
|
|
|
"github.com/uptrace/bun/dialect"
|
|
"github.com/uptrace/bun/schema"
|
|
)
|
|
|
|
var (
|
|
driverValuerType = reflect.TypeOf((*driver.Valuer)(nil)).Elem()
|
|
|
|
stringType = reflect.TypeOf((*string)(nil)).Elem()
|
|
sliceStringType = reflect.TypeOf([]string(nil))
|
|
|
|
intType = reflect.TypeOf((*int)(nil)).Elem()
|
|
sliceIntType = reflect.TypeOf([]int(nil))
|
|
|
|
int64Type = reflect.TypeOf((*int64)(nil)).Elem()
|
|
sliceInt64Type = reflect.TypeOf([]int64(nil))
|
|
|
|
float64Type = reflect.TypeOf((*float64)(nil)).Elem()
|
|
sliceFloat64Type = reflect.TypeOf([]float64(nil))
|
|
|
|
timeType = reflect.TypeOf((*time.Time)(nil)).Elem()
|
|
sliceTimeType = reflect.TypeOf([]time.Time(nil))
|
|
)
|
|
|
|
func arrayAppend(fmter schema.Formatter, b []byte, v interface{}) []byte {
|
|
switch v := v.(type) {
|
|
case int64:
|
|
return strconv.AppendInt(b, v, 10)
|
|
case float64:
|
|
return dialect.AppendFloat64(b, v)
|
|
case bool:
|
|
return dialect.AppendBool(b, v)
|
|
case []byte:
|
|
return arrayAppendBytes(b, v)
|
|
case string:
|
|
return arrayAppendString(b, v)
|
|
case time.Time:
|
|
return fmter.Dialect().AppendTime(b, v)
|
|
default:
|
|
err := fmt.Errorf("pgdialect: can't append %T", v)
|
|
return dialect.AppendError(b, err)
|
|
}
|
|
}
|
|
|
|
func arrayAppendStringValue(fmter schema.Formatter, b []byte, v reflect.Value) []byte {
|
|
return arrayAppendString(b, v.String())
|
|
}
|
|
|
|
func arrayAppendBytesValue(fmter schema.Formatter, b []byte, v reflect.Value) []byte {
|
|
return arrayAppendBytes(b, v.Bytes())
|
|
}
|
|
|
|
func arrayAppendDriverValue(fmter schema.Formatter, b []byte, v reflect.Value) []byte {
|
|
iface, err := v.Interface().(driver.Valuer).Value()
|
|
if err != nil {
|
|
return dialect.AppendError(b, err)
|
|
}
|
|
return arrayAppend(fmter, b, iface)
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
func (d *Dialect) arrayAppender(typ reflect.Type) schema.AppenderFunc {
|
|
kind := typ.Kind()
|
|
|
|
switch kind {
|
|
case reflect.Ptr:
|
|
if fn := d.arrayAppender(typ.Elem()); fn != nil {
|
|
return schema.PtrAppender(fn)
|
|
}
|
|
case reflect.Slice, reflect.Array:
|
|
// ok:
|
|
default:
|
|
return nil
|
|
}
|
|
|
|
elemType := typ.Elem()
|
|
|
|
if kind == reflect.Slice {
|
|
switch elemType {
|
|
case stringType:
|
|
return appendStringSliceValue
|
|
case intType:
|
|
return appendIntSliceValue
|
|
case int64Type:
|
|
return appendInt64SliceValue
|
|
case float64Type:
|
|
return appendFloat64SliceValue
|
|
case timeType:
|
|
return appendTimeSliceValue
|
|
}
|
|
}
|
|
|
|
appendElem := d.arrayElemAppender(elemType)
|
|
if appendElem == nil {
|
|
panic(fmt.Errorf("pgdialect: %s is not supported", typ))
|
|
}
|
|
|
|
return func(fmter schema.Formatter, b []byte, v reflect.Value) []byte {
|
|
kind := v.Kind()
|
|
switch kind {
|
|
case reflect.Ptr, reflect.Slice:
|
|
if v.IsNil() {
|
|
return dialect.AppendNull(b)
|
|
}
|
|
}
|
|
|
|
if kind == reflect.Ptr {
|
|
v = v.Elem()
|
|
}
|
|
|
|
b = append(b, '\'')
|
|
|
|
b = append(b, '{')
|
|
for i := 0; i < v.Len(); i++ {
|
|
elem := v.Index(i)
|
|
b = appendElem(fmter, b, elem)
|
|
b = append(b, ',')
|
|
}
|
|
if v.Len() > 0 {
|
|
b[len(b)-1] = '}' // Replace trailing comma.
|
|
} else {
|
|
b = append(b, '}')
|
|
}
|
|
|
|
b = append(b, '\'')
|
|
|
|
return b
|
|
}
|
|
}
|
|
|
|
func (d *Dialect) arrayElemAppender(typ reflect.Type) schema.AppenderFunc {
|
|
if typ.Implements(driverValuerType) {
|
|
return arrayAppendDriverValue
|
|
}
|
|
switch typ.Kind() {
|
|
case reflect.String:
|
|
return arrayAppendStringValue
|
|
case reflect.Slice:
|
|
if typ.Elem().Kind() == reflect.Uint8 {
|
|
return arrayAppendBytesValue
|
|
}
|
|
}
|
|
return schema.Appender(d, typ)
|
|
}
|
|
|
|
func appendStringSliceValue(fmter schema.Formatter, b []byte, v reflect.Value) []byte {
|
|
ss := v.Convert(sliceStringType).Interface().([]string)
|
|
return appendStringSlice(b, ss)
|
|
}
|
|
|
|
func appendStringSlice(b []byte, ss []string) []byte {
|
|
if ss == nil {
|
|
return dialect.AppendNull(b)
|
|
}
|
|
|
|
b = append(b, '\'')
|
|
|
|
b = append(b, '{')
|
|
for _, s := range ss {
|
|
b = arrayAppendString(b, s)
|
|
b = append(b, ',')
|
|
}
|
|
if len(ss) > 0 {
|
|
b[len(b)-1] = '}' // Replace trailing comma.
|
|
} else {
|
|
b = append(b, '}')
|
|
}
|
|
|
|
b = append(b, '\'')
|
|
|
|
return b
|
|
}
|
|
|
|
func appendIntSliceValue(fmter schema.Formatter, b []byte, v reflect.Value) []byte {
|
|
ints := v.Convert(sliceIntType).Interface().([]int)
|
|
return appendIntSlice(b, ints)
|
|
}
|
|
|
|
func appendIntSlice(b []byte, ints []int) []byte {
|
|
if ints == nil {
|
|
return dialect.AppendNull(b)
|
|
}
|
|
|
|
b = append(b, '\'')
|
|
|
|
b = append(b, '{')
|
|
for _, n := range ints {
|
|
b = strconv.AppendInt(b, int64(n), 10)
|
|
b = append(b, ',')
|
|
}
|
|
if len(ints) > 0 {
|
|
b[len(b)-1] = '}' // Replace trailing comma.
|
|
} else {
|
|
b = append(b, '}')
|
|
}
|
|
|
|
b = append(b, '\'')
|
|
|
|
return b
|
|
}
|
|
|
|
func appendInt64SliceValue(fmter schema.Formatter, b []byte, v reflect.Value) []byte {
|
|
ints := v.Convert(sliceInt64Type).Interface().([]int64)
|
|
return appendInt64Slice(b, ints)
|
|
}
|
|
|
|
func appendInt64Slice(b []byte, ints []int64) []byte {
|
|
if ints == nil {
|
|
return dialect.AppendNull(b)
|
|
}
|
|
|
|
b = append(b, '\'')
|
|
|
|
b = append(b, '{')
|
|
for _, n := range ints {
|
|
b = strconv.AppendInt(b, n, 10)
|
|
b = append(b, ',')
|
|
}
|
|
if len(ints) > 0 {
|
|
b[len(b)-1] = '}' // Replace trailing comma.
|
|
} else {
|
|
b = append(b, '}')
|
|
}
|
|
|
|
b = append(b, '\'')
|
|
|
|
return b
|
|
}
|
|
|
|
func appendFloat64SliceValue(fmter schema.Formatter, b []byte, v reflect.Value) []byte {
|
|
floats := v.Convert(sliceFloat64Type).Interface().([]float64)
|
|
return appendFloat64Slice(b, floats)
|
|
}
|
|
|
|
func appendFloat64Slice(b []byte, floats []float64) []byte {
|
|
if floats == nil {
|
|
return dialect.AppendNull(b)
|
|
}
|
|
|
|
b = append(b, '\'')
|
|
|
|
b = append(b, '{')
|
|
for _, n := range floats {
|
|
b = dialect.AppendFloat64(b, n)
|
|
b = append(b, ',')
|
|
}
|
|
if len(floats) > 0 {
|
|
b[len(b)-1] = '}' // Replace trailing comma.
|
|
} else {
|
|
b = append(b, '}')
|
|
}
|
|
|
|
b = append(b, '\'')
|
|
|
|
return b
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
func arrayAppendBytes(b []byte, bs []byte) []byte {
|
|
if bs == nil {
|
|
return dialect.AppendNull(b)
|
|
}
|
|
|
|
b = append(b, `"\\x`...)
|
|
|
|
s := len(b)
|
|
b = append(b, make([]byte, hex.EncodedLen(len(bs)))...)
|
|
hex.Encode(b[s:], bs)
|
|
|
|
b = append(b, '"')
|
|
|
|
return b
|
|
}
|
|
|
|
func arrayAppendString(b []byte, s string) []byte {
|
|
b = append(b, '"')
|
|
for _, r := range s {
|
|
switch r {
|
|
case 0:
|
|
// ignore
|
|
case '\'':
|
|
b = append(b, "''"...)
|
|
case '"':
|
|
b = append(b, '\\', '"')
|
|
case '\\':
|
|
b = append(b, '\\', '\\')
|
|
default:
|
|
if r < utf8.RuneSelf {
|
|
b = append(b, byte(r))
|
|
break
|
|
}
|
|
l := len(b)
|
|
if cap(b)-l < utf8.UTFMax {
|
|
b = append(b, make([]byte, utf8.UTFMax)...)
|
|
}
|
|
n := utf8.EncodeRune(b[l:l+utf8.UTFMax], r)
|
|
b = b[:l+n]
|
|
}
|
|
}
|
|
b = append(b, '"')
|
|
return b
|
|
}
|
|
|
|
func appendTimeSliceValue(fmter schema.Formatter, b []byte, v reflect.Value) []byte {
|
|
ts := v.Convert(sliceTimeType).Interface().([]time.Time)
|
|
return appendTimeSlice(fmter, b, ts)
|
|
}
|
|
|
|
func appendTimeSlice(fmter schema.Formatter, b []byte, ts []time.Time) []byte {
|
|
if ts == nil {
|
|
return dialect.AppendNull(b)
|
|
}
|
|
b = append(b, '\'')
|
|
b = append(b, '{')
|
|
for _, t := range ts {
|
|
b = append(b, '"')
|
|
b = t.UTC().AppendFormat(b, "2006-01-02 15:04:05.999999-07:00")
|
|
b = append(b, '"')
|
|
b = append(b, ',')
|
|
}
|
|
if len(ts) > 0 {
|
|
b[len(b)-1] = '}' // Replace trailing comma.
|
|
} else {
|
|
b = append(b, '}')
|
|
}
|
|
b = append(b, '\'')
|
|
return b
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
|
|
var mapStringStringType = reflect.TypeOf(map[string]string(nil))
|
|
|
|
func (d *Dialect) hstoreAppender(typ reflect.Type) schema.AppenderFunc {
|
|
kind := typ.Kind()
|
|
|
|
switch kind {
|
|
case reflect.Ptr:
|
|
if fn := d.hstoreAppender(typ.Elem()); fn != nil {
|
|
return schema.PtrAppender(fn)
|
|
}
|
|
case reflect.Map:
|
|
// ok:
|
|
default:
|
|
return nil
|
|
}
|
|
|
|
if typ.Key() == stringType && typ.Elem() == stringType {
|
|
return appendMapStringStringValue
|
|
}
|
|
|
|
return func(fmter schema.Formatter, b []byte, v reflect.Value) []byte {
|
|
err := fmt.Errorf("bun: Hstore(unsupported %s)", v.Type())
|
|
return dialect.AppendError(b, err)
|
|
}
|
|
}
|
|
|
|
func appendMapStringString(b []byte, m map[string]string) []byte {
|
|
if m == nil {
|
|
return dialect.AppendNull(b)
|
|
}
|
|
|
|
b = append(b, '\'')
|
|
|
|
for key, value := range m {
|
|
b = arrayAppendString(b, key)
|
|
b = append(b, '=', '>')
|
|
b = arrayAppendString(b, value)
|
|
b = append(b, ',')
|
|
}
|
|
if len(m) > 0 {
|
|
b = b[:len(b)-1] // Strip trailing comma.
|
|
}
|
|
|
|
b = append(b, '\'')
|
|
|
|
return b
|
|
}
|
|
|
|
func appendMapStringStringValue(fmter schema.Formatter, b []byte, v reflect.Value) []byte {
|
|
m := v.Convert(mapStringStringType).Interface().(map[string]string)
|
|
return appendMapStringString(b, m)
|
|
}
|