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46 lines
932 B
46 lines
932 B
// Copyright 2019 The Xorm Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package schemas
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import (
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"bytes"
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"encoding/gob"
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"xorm.io/xorm/internal/utils"
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)
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// PK represents primary key values
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type PK []interface{}
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// NewPK creates primay keys
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func NewPK(pks ...interface{}) *PK {
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p := PK(pks)
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return &p
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}
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// IsZero return true if primay keys are zero
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func (p *PK) IsZero() bool {
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for _, k := range *p {
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if utils.IsZero(k) {
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return true
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}
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}
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return false
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}
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// ToString convert to SQL string
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func (p *PK) ToString() (string, error) {
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buf := new(bytes.Buffer)
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enc := gob.NewEncoder(buf)
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err := enc.Encode(*p)
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return buf.String(), err
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}
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// FromString reads content to load primary keys
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func (p *PK) FromString(content string) error {
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dec := gob.NewDecoder(bytes.NewBufferString(content))
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err := dec.Decode(p)
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return err
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}
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