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5fe2ec264f
* Retry create issue to cope with duplicate keys * Use .SetExpr().Where().Insert()
167 lines
4.5 KiB
Go
167 lines
4.5 KiB
Go
// 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 core
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import (
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"context"
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"database/sql"
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"errors"
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"reflect"
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)
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// Stmt reprents a stmt objects
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type Stmt struct {
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*sql.Stmt
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db *DB
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names map[string]int
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}
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func (db *DB) PrepareContext(ctx context.Context, query string) (*Stmt, error) {
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names := make(map[string]int)
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var i int
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query = re.ReplaceAllStringFunc(query, func(src string) string {
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names[src[1:]] = i
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i += 1
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return "?"
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})
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stmt, err := db.DB.PrepareContext(ctx, query)
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if err != nil {
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return nil, err
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}
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return &Stmt{stmt, db, names}, nil
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}
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func (db *DB) Prepare(query string) (*Stmt, error) {
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return db.PrepareContext(context.Background(), query)
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}
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func (s *Stmt) ExecMapContext(ctx context.Context, mp interface{}) (sql.Result, error) {
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vv := reflect.ValueOf(mp)
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if vv.Kind() != reflect.Ptr || vv.Elem().Kind() != reflect.Map {
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return nil, errors.New("mp should be a map's pointer")
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}
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args := make([]interface{}, len(s.names))
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for k, i := range s.names {
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args[i] = vv.Elem().MapIndex(reflect.ValueOf(k)).Interface()
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}
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return s.Stmt.ExecContext(ctx, args...)
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}
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func (s *Stmt) ExecMap(mp interface{}) (sql.Result, error) {
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return s.ExecMapContext(context.Background(), mp)
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}
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func (s *Stmt) ExecStructContext(ctx context.Context, st interface{}) (sql.Result, error) {
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vv := reflect.ValueOf(st)
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if vv.Kind() != reflect.Ptr || vv.Elem().Kind() != reflect.Struct {
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return nil, errors.New("mp should be a map's pointer")
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}
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args := make([]interface{}, len(s.names))
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for k, i := range s.names {
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args[i] = vv.Elem().FieldByName(k).Interface()
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}
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return s.Stmt.ExecContext(ctx, args...)
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}
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func (s *Stmt) ExecStruct(st interface{}) (sql.Result, error) {
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return s.ExecStructContext(context.Background(), st)
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}
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func (s *Stmt) QueryContext(ctx context.Context, args ...interface{}) (*Rows, error) {
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rows, err := s.Stmt.QueryContext(ctx, args...)
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if err != nil {
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return nil, err
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}
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return &Rows{rows, s.db}, nil
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}
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func (s *Stmt) Query(args ...interface{}) (*Rows, error) {
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return s.QueryContext(context.Background(), args...)
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}
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func (s *Stmt) QueryMapContext(ctx context.Context, mp interface{}) (*Rows, error) {
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vv := reflect.ValueOf(mp)
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if vv.Kind() != reflect.Ptr || vv.Elem().Kind() != reflect.Map {
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return nil, errors.New("mp should be a map's pointer")
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}
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args := make([]interface{}, len(s.names))
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for k, i := range s.names {
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args[i] = vv.Elem().MapIndex(reflect.ValueOf(k)).Interface()
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}
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return s.QueryContext(ctx, args...)
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}
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func (s *Stmt) QueryMap(mp interface{}) (*Rows, error) {
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return s.QueryMapContext(context.Background(), mp)
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}
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func (s *Stmt) QueryStructContext(ctx context.Context, st interface{}) (*Rows, error) {
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vv := reflect.ValueOf(st)
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if vv.Kind() != reflect.Ptr || vv.Elem().Kind() != reflect.Struct {
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return nil, errors.New("mp should be a map's pointer")
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}
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args := make([]interface{}, len(s.names))
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for k, i := range s.names {
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args[i] = vv.Elem().FieldByName(k).Interface()
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}
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return s.Query(args...)
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}
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func (s *Stmt) QueryStruct(st interface{}) (*Rows, error) {
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return s.QueryStructContext(context.Background(), st)
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}
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func (s *Stmt) QueryRowContext(ctx context.Context, args ...interface{}) *Row {
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rows, err := s.QueryContext(ctx, args...)
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return &Row{rows, err}
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}
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func (s *Stmt) QueryRow(args ...interface{}) *Row {
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return s.QueryRowContext(context.Background(), args...)
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}
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func (s *Stmt) QueryRowMapContext(ctx context.Context, mp interface{}) *Row {
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vv := reflect.ValueOf(mp)
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if vv.Kind() != reflect.Ptr || vv.Elem().Kind() != reflect.Map {
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return &Row{nil, errors.New("mp should be a map's pointer")}
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}
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args := make([]interface{}, len(s.names))
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for k, i := range s.names {
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args[i] = vv.Elem().MapIndex(reflect.ValueOf(k)).Interface()
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}
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return s.QueryRowContext(ctx, args...)
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}
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func (s *Stmt) QueryRowMap(mp interface{}) *Row {
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return s.QueryRowMapContext(context.Background(), mp)
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}
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func (s *Stmt) QueryRowStructContext(ctx context.Context, st interface{}) *Row {
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vv := reflect.ValueOf(st)
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if vv.Kind() != reflect.Ptr || vv.Elem().Kind() != reflect.Struct {
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return &Row{nil, errors.New("st should be a struct's pointer")}
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}
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args := make([]interface{}, len(s.names))
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for k, i := range s.names {
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args[i] = vv.Elem().FieldByName(k).Interface()
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}
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return s.QueryRowContext(ctx, args...)
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}
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func (s *Stmt) QueryRowStruct(st interface{}) *Row {
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return s.QueryRowStructContext(context.Background(), st)
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}
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