/
model_hook.go
143 lines (117 loc) · 4 KB
/
model_hook.go
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package bun
import (
"context"
"reflect"
"github.com/uptrace/bun/schema"
)
type hookStubs struct{}
var (
_ AfterSelectHook = (*hookStubs)(nil)
_ BeforeInsertHook = (*hookStubs)(nil)
_ AfterInsertHook = (*hookStubs)(nil)
_ BeforeUpdateHook = (*hookStubs)(nil)
_ AfterUpdateHook = (*hookStubs)(nil)
_ BeforeDeleteHook = (*hookStubs)(nil)
_ AfterDeleteHook = (*hookStubs)(nil)
)
func (hookStubs) AfterSelect(ctx context.Context) error { return nil }
func (hookStubs) BeforeInsert(ctx context.Context) error { return nil }
func (hookStubs) AfterInsert(ctx context.Context) error { return nil }
func (hookStubs) BeforeUpdate(ctx context.Context) error { return nil }
func (hookStubs) AfterUpdate(ctx context.Context) error { return nil }
func (hookStubs) BeforeDelete(ctx context.Context) error { return nil }
func (hookStubs) AfterDelete(ctx context.Context) error { return nil }
func callHookSlice(
ctx context.Context,
slice reflect.Value,
ptr bool,
hook func(context.Context, reflect.Value) error,
) error {
var firstErr error
sliceLen := slice.Len()
for i := 0; i < sliceLen; i++ {
v := slice.Index(i)
if !ptr {
v = v.Addr()
}
if err := hook(ctx, v); err != nil && firstErr == nil {
firstErr = err
}
}
return firstErr
}
func callHookSlice2(
ctx context.Context,
slice reflect.Value,
ptr bool,
hook func(context.Context, reflect.Value) error,
) error {
var firstErr error
if slice.IsValid() {
sliceLen := slice.Len()
for i := 0; i < sliceLen; i++ {
v := slice.Index(i)
if !ptr {
v = v.Addr()
}
err := hook(ctx, v)
if err != nil && firstErr == nil {
firstErr = err
}
}
}
return firstErr
}
//------------------------------------------------------------------------------
func callBeforeScanHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(schema.BeforeScanHook).BeforeScan(ctx)
}
func callAfterScanHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(schema.AfterScanHook).AfterScan(ctx)
}
func callAfterSelectHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(schema.AfterSelectHook).AfterSelect(ctx)
}
func callAfterSelectHookSlice(
ctx context.Context, slice reflect.Value, ptr bool,
) error {
return callHookSlice2(ctx, slice, ptr, callAfterSelectHook)
}
func callBeforeInsertHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(schema.BeforeInsertHook).BeforeInsert(ctx)
}
func callBeforeInsertHookSlice(ctx context.Context, slice reflect.Value, ptr bool) error {
return callHookSlice(ctx, slice, ptr, callBeforeInsertHook)
}
func callAfterInsertHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(schema.AfterInsertHook).AfterInsert(ctx)
}
func callAfterInsertHookSlice(ctx context.Context, slice reflect.Value, ptr bool) error {
return callHookSlice2(ctx, slice, ptr, callAfterInsertHook)
}
func callBeforeUpdateHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(schema.BeforeUpdateHook).BeforeUpdate(ctx)
}
func callBeforeUpdateHookSlice(ctx context.Context, slice reflect.Value, ptr bool) error {
return callHookSlice(ctx, slice, ptr, callBeforeUpdateHook)
}
func callAfterUpdateHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(schema.AfterUpdateHook).AfterUpdate(ctx)
}
func callAfterUpdateHookSlice(ctx context.Context, slice reflect.Value, ptr bool) error {
return callHookSlice2(ctx, slice, ptr, callAfterUpdateHook)
}
func callBeforeDeleteHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(schema.BeforeDeleteHook).BeforeDelete(ctx)
}
func callBeforeDeleteHookSlice(ctx context.Context, slice reflect.Value, ptr bool) error {
return callHookSlice(ctx, slice, ptr, callBeforeDeleteHook)
}
func callAfterDeleteHook(ctx context.Context, v reflect.Value) error {
return v.Interface().(schema.AfterDeleteHook).AfterDelete(ctx)
}
func callAfterDeleteHookSlice(
ctx context.Context, slice reflect.Value, ptr bool,
) error {
return callHookSlice2(ctx, slice, ptr, callAfterDeleteHook)
}