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69 lines
1.1 KiB
Go
69 lines
1.1 KiB
Go
9 years ago
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package db
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import (
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"database/sql"
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_ "github.com/mattn/go-sqlite3" // required blank import
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)
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// DB is the SQL database.
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type DB struct {
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conn *sql.DB
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}
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type Result sql.Result
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type Row sql.Row
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type Rows sql.Rows
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// Open an existing database, creating it if it does not exist.
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func Open(dbPath string) *DB {
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dbc, err := sql.Open("sqlite3", dbPath)
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if err != nil {
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return nil
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}
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return &DB{
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conn: dbc,
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}
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}
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// Close closes the underlying database connection.
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func (db *DB) Close() error {
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return db.conn.Close()
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}
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func (db *DB) Execute(queries []string, tx bool) ([]sql.Result, error) {
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type Execer interface {
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Exec(query string, args ...interface{}) (sql.Result, error)
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}
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err := func() (err error) {
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var execer Execer
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defer func() {
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if t, ok := execer.(*sql.Tx); ok {
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if err != nil {
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t.Rollback()
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return
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}
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t.Commit()
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}
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}()
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if tx {
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execer, _ = db.conn.Begin()
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} else {
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execer = db.conn
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}
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for _, q := range queries {
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_, err = execer.Exec(q)
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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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return nil
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}()
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return nil, err
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}
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