146 lines
2.7 KiB
Go
146 lines
2.7 KiB
Go
package sq
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import (
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"context"
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"database/sql"
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"github.com/jmoiron/sqlx"
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"gogs.mikescher.com/BlackForestBytes/goext/langext"
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)
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type TxStatus string
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const (
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TxStatusInitial TxStatus = "INITIAL"
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TxStatusActive TxStatus = "ACTIVE"
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TxStatusComitted TxStatus = "COMMITTED"
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TxStatusRollback TxStatus = "ROLLBACK"
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)
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type Tx interface {
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Rollback() error
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Commit() error
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Status() TxStatus
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Exec(ctx context.Context, sql string, prep PP) (sql.Result, error)
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Query(ctx context.Context, sql string, prep PP) (*sqlx.Rows, error)
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}
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type transaction struct {
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tx *sqlx.Tx
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id uint16
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lstr []Listener
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status TxStatus
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execCtr int
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queryCtr int
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}
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func NewTransaction(xtx *sqlx.Tx, txid uint16, lstr []Listener) Tx {
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return &transaction{
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tx: xtx,
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id: txid,
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lstr: lstr,
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status: TxStatusInitial,
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execCtr: 0,
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queryCtr: 0,
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}
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}
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func (tx *transaction) Rollback() error {
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for _, v := range tx.lstr {
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err := v.PreTxRollback(tx.id)
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if err != nil {
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return err
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}
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}
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result := tx.tx.Rollback()
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if result == nil {
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tx.status = TxStatusRollback
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}
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for _, v := range tx.lstr {
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v.PostTxRollback(tx.id, result)
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}
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return result
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}
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func (tx *transaction) Commit() error {
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for _, v := range tx.lstr {
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err := v.PreTxCommit(tx.id)
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if err != nil {
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return err
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}
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}
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result := tx.tx.Commit()
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if result == nil {
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tx.status = TxStatusComitted
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}
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for _, v := range tx.lstr {
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v.PostTxRollback(tx.id, result)
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}
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return result
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}
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func (tx *transaction) Exec(ctx context.Context, sqlstr string, prep PP) (sql.Result, error) {
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origsql := sqlstr
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for _, v := range tx.lstr {
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err := v.PreExec(ctx, langext.Ptr(tx.id), &sqlstr, &prep)
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if err != nil {
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return nil, err
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}
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}
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res, err := tx.tx.NamedExecContext(ctx, sqlstr, prep)
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if tx.status == TxStatusInitial && err == nil {
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tx.status = TxStatusActive
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}
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for _, v := range tx.lstr {
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v.PostExec(langext.Ptr(tx.id), origsql, sqlstr, prep)
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}
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if err != nil {
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return nil, err
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}
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return res, nil
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}
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func (tx *transaction) Query(ctx context.Context, sqlstr string, prep PP) (*sqlx.Rows, error) {
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origsql := sqlstr
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for _, v := range tx.lstr {
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err := v.PreQuery(ctx, langext.Ptr(tx.id), &sqlstr, &prep)
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if err != nil {
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return nil, err
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}
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}
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rows, err := sqlx.NamedQueryContext(ctx, tx.tx, sqlstr, prep)
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if tx.status == TxStatusInitial && err == nil {
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tx.status = TxStatusActive
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}
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for _, v := range tx.lstr {
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v.PostQuery(langext.Ptr(tx.id), origsql, sqlstr, prep)
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}
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if err != nil {
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return nil, err
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}
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return rows, nil
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}
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func (tx *transaction) Status() TxStatus {
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return tx.status
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}
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func (tx *transaction) Traffic() (int, int) {
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return tx.execCtr, tx.queryCtr
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}
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