101 lines
1.8 KiB
Go
101 lines
1.8 KiB
Go
package primary
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import (
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"database/sql"
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"errors"
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"gogs.mikescher.com/BlackForestBytes/goext/sq"
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)
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func (db *Database) CreateCompatID(ctx TxContext, idtype string, newid string) (int64, error) {
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tx, err := ctx.GetOrCreateTransaction(db)
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if err != nil {
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return 0, err
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}
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rows, err := tx.Query(ctx, "SELECT COALESCE(MAX(old), 0) FROM compat_ids", sq.PP{})
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if err != nil {
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return 0, err
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}
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if !rows.Next() {
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return 0, errors.New("failed to query MAX(old)")
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}
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var oldid int64
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err = rows.Scan(&oldid)
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if err != nil {
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return 0, err
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}
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oldid++
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_, err = tx.Exec(ctx, "INSERT INTO compat_ids (old, new, type) VALUES (:old, :new, :typ)", sq.PP{
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"old": oldid,
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"new": newid,
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"typ": idtype,
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})
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if err != nil {
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return 0, err
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}
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return oldid, nil
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}
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func (db *Database) ConvertCompatID(ctx TxContext, oldid int64, idtype string) (*string, error) {
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tx, err := ctx.GetOrCreateTransaction(db)
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if err != nil {
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return nil, err
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}
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rows, err := tx.Query(ctx, "SELECT new FROM compat_ids WHERE old = :old AND type = :typ", sq.PP{
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"old": oldid,
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"typ": idtype,
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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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if !rows.Next() {
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return nil, nil
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}
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var newid string
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err = rows.Scan(&newid)
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if err == sql.ErrNoRows {
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return nil, nil
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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 &newid, nil
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}
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func (db *Database) ConvertToCompatID(ctx TxContext, newid string) (*int64, *string, error) {
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tx, err := ctx.GetOrCreateTransaction(db)
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if err != nil {
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return nil, nil, err
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}
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rows, err := tx.Query(ctx, "SELECT old, type FROM compat_ids WHERE new = :new", sq.PP{"new": newid})
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if err != nil {
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return nil, nil, err
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}
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if !rows.Next() {
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return nil, nil, nil
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}
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var oldid int64
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var idtype string
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err = rows.Scan(&oldid, &idtype)
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if err == sql.ErrNoRows {
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return nil, nil, nil
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}
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if err != nil {
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return nil, nil, err
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}
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return &oldid, &idtype, nil
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}
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