/
validator_cond.go
74 lines (68 loc) · 1.54 KB
/
validator_cond.go
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// Copyright 2022 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package syncer
import (
"strings"
"github.com/pingcap/tidb/pkg/parser/model"
)
type Cond struct {
TargetTbl string
Columns []*model.ColumnInfo
PK *model.IndexInfo
PkValues [][]string
}
func (c *Cond) GetArgs() []interface{} {
var res []interface{}
for _, v := range c.PkValues {
for _, val := range v {
res = append(res, val)
}
}
return res
}
func (c *Cond) GetWhere() string {
var b strings.Builder
isOneKey := len(c.PK.Columns) == 1
if isOneKey {
b.WriteString(c.PK.Columns[0].Name.O)
} else {
b.WriteString("(")
for i := 0; i < len(c.PK.Columns); i++ {
if i != 0 {
b.WriteString(",")
}
b.WriteString(c.PK.Columns[i].Name.O)
}
b.WriteString(")")
}
b.WriteString(" in (")
for i := range c.PkValues {
if i != 0 {
b.WriteString(",")
}
if !isOneKey {
b.WriteString("(")
for j := 0; j < len(c.PK.Columns); j++ {
if j != 0 {
b.WriteString(",")
}
b.WriteString("?")
}
b.WriteString(")")
} else {
b.WriteString("?")
}
}
b.WriteString(")")
return b.String()
}