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// Copyright 2019 GoAdmin Core Team. All rights reserved.
// Use of this source code is governed by a Apache-2.0 style
// license that can be found in the LICENSE file.
package db
import (
"context"
"database/sql"
"regexp"
"strings"
)
// CommonQuery is a common method of query.
func CommonQuery(db *sql.DB, query string, args ...interface{}) ([]map[string]interface{}, error) {
rs, err := db.Query(query, args...)
if err != nil {
panic(err)
}
defer func() {
if rs != nil {
_ = rs.Close()
}
}()
col, colErr := rs.Columns()
if colErr != nil {
return nil, colErr
}
typeVal, err := rs.ColumnTypes()
if err != nil {
return nil, err
}
// TODO: regular expressions for sqlite, use the dialect module
// tell the drive to reduce the performance loss
results := make([]map[string]interface{}, 0)
r, _ := regexp.Compile(`\\((.*)\\)`)
for rs.Next() {
var colVar = make([]interface{}, len(col))
for i := 0; i < len(col); i++ {
typeName := strings.ToUpper(r.ReplaceAllString(typeVal[i].DatabaseTypeName(), ""))
SetColVarType(&colVar, i, typeName)
}
result := make(map[string]interface{})
if scanErr := rs.Scan(colVar...); scanErr != nil {
return nil, scanErr
}
for j := 0; j < len(col); j++ {
typeName := strings.ToUpper(r.ReplaceAllString(typeVal[j].DatabaseTypeName(), ""))
SetResultValue(&result, col[j], colVar[j], typeName)
}
results = append(results, result)
}
if err := rs.Err(); err != nil {
return nil, err
}
return results, nil
}
// CommonExec is a common method of exec.
func CommonExec(db *sql.DB, query string, args ...interface{}) (sql.Result, error) {
rs, err := db.Exec(query, args...)
if err != nil {
return nil, err
}
return rs, nil
}
// CommonQueryWithTx is a common method of query.
func CommonQueryWithTx(tx *sql.Tx, query string, args ...interface{}) ([]map[string]interface{}, error) {
rs, err := tx.Query(query, args...)
if err != nil {
panic(err)
}
defer func() {
if rs != nil {
_ = rs.Close()
}
}()
col, colErr := rs.Columns()
if colErr != nil {
return nil, colErr
}
typeVal, err := rs.ColumnTypes()
if err != nil {
return nil, err
}
// TODO: regular expressions for sqlite, use the dialect module
// tell the drive to reduce the performance loss
results := make([]map[string]interface{}, 0)
r, _ := regexp.Compile(`\\((.*)\\)`)
for rs.Next() {
var colVar = make([]interface{}, len(col))
for i := 0; i < len(col); i++ {
typeName := strings.ToUpper(r.ReplaceAllString(typeVal[i].DatabaseTypeName(), ""))
SetColVarType(&colVar, i, typeName)
}
result := make(map[string]interface{})
if scanErr := rs.Scan(colVar...); scanErr != nil {
return nil, scanErr
}
for j := 0; j < len(col); j++ {
typeName := strings.ToUpper(r.ReplaceAllString(typeVal[j].DatabaseTypeName(), ""))
SetResultValue(&result, col[j], colVar[j], typeName)
}
results = append(results, result)
}
if err := rs.Err(); err != nil {
return nil, err
}
return results, nil
}
// CommonExecWithTx is a common method of exec.
func CommonExecWithTx(tx *sql.Tx, query string, args ...interface{}) (sql.Result, error) {
rs, err := tx.Exec(query, args...)
if err != nil {
return nil, err
}
return rs, nil
}
// CommonBeginTxWithLevel starts a transaction with given transaction isolation level and db connection.
func CommonBeginTxWithLevel(db *sql.DB, level sql.IsolationLevel) *sql.Tx {
tx, err := db.BeginTx(context.Background(), &sql.TxOptions{Isolation: level})
if err != nil {
panic(err)
}
return tx
}
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