mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-01 06:50:00 +00:00
120 lines
2.2 KiB
Go
120 lines
2.2 KiB
Go
package schema
|
|
|
|
import (
|
|
"fmt"
|
|
"reflect"
|
|
|
|
"github.com/uptrace/bun/dialect"
|
|
"github.com/uptrace/bun/internal/tagparser"
|
|
)
|
|
|
|
type Field struct {
|
|
StructField reflect.StructField
|
|
|
|
Tag tagparser.Tag
|
|
IndirectType reflect.Type
|
|
Index []int
|
|
|
|
Name string // SQL name, .e.g. id
|
|
SQLName Safe // escaped SQL name, e.g. "id"
|
|
GoName string // struct field name, e.g. Id
|
|
|
|
DiscoveredSQLType string
|
|
UserSQLType string
|
|
CreateTableSQLType string
|
|
SQLDefault string
|
|
|
|
OnDelete string
|
|
OnUpdate string
|
|
|
|
IsPK bool
|
|
NotNull bool
|
|
NullZero bool
|
|
AutoIncrement bool
|
|
|
|
Append AppenderFunc
|
|
Scan ScannerFunc
|
|
IsZero IsZeroerFunc
|
|
}
|
|
|
|
func (f *Field) String() string {
|
|
return f.Name
|
|
}
|
|
|
|
func (f *Field) Clone() *Field {
|
|
cp := *f
|
|
cp.Index = cp.Index[:len(f.Index):len(f.Index)]
|
|
return &cp
|
|
}
|
|
|
|
func (f *Field) Value(strct reflect.Value) reflect.Value {
|
|
return fieldByIndexAlloc(strct, f.Index)
|
|
}
|
|
|
|
func (f *Field) HasZeroValue(v reflect.Value) bool {
|
|
for _, idx := range f.Index {
|
|
if v.Kind() == reflect.Ptr {
|
|
if v.IsNil() {
|
|
return true
|
|
}
|
|
v = v.Elem()
|
|
}
|
|
v = v.Field(idx)
|
|
}
|
|
return f.IsZero(v)
|
|
}
|
|
|
|
func (f *Field) AppendValue(fmter Formatter, b []byte, strct reflect.Value) []byte {
|
|
fv, ok := fieldByIndex(strct, f.Index)
|
|
if !ok {
|
|
return dialect.AppendNull(b)
|
|
}
|
|
|
|
if f.NullZero && f.IsZero(fv) {
|
|
return dialect.AppendNull(b)
|
|
}
|
|
if f.Append == nil {
|
|
panic(fmt.Errorf("bun: AppendValue(unsupported %s)", fv.Type()))
|
|
}
|
|
return f.Append(fmter, b, fv)
|
|
}
|
|
|
|
func (f *Field) ScanWithCheck(fv reflect.Value, src interface{}) error {
|
|
if f.Scan == nil {
|
|
return fmt.Errorf("bun: Scan(unsupported %s)", f.IndirectType)
|
|
}
|
|
return f.Scan(fv, src)
|
|
}
|
|
|
|
func (f *Field) ScanValue(strct reflect.Value, src interface{}) error {
|
|
if src == nil {
|
|
if fv, ok := fieldByIndex(strct, f.Index); ok {
|
|
return f.ScanWithCheck(fv, src)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
fv := fieldByIndexAlloc(strct, f.Index)
|
|
return f.ScanWithCheck(fv, src)
|
|
}
|
|
|
|
func (f *Field) markAsPK() {
|
|
f.IsPK = true
|
|
f.NotNull = true
|
|
if !f.Tag.HasOption("allowzero") {
|
|
f.NullZero = true
|
|
}
|
|
}
|
|
|
|
func indexEqual(ind1, ind2 []int) bool {
|
|
if len(ind1) != len(ind2) {
|
|
return false
|
|
}
|
|
for i, ind := range ind1 {
|
|
if ind != ind2[i] {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|