func (d *database) open() error {
// Binding with sqladapter's logic.
d.BaseDatabase = sqladapter.NewBaseDatabase(d)
// Binding with sqlbuilder.
b, err := sqlbuilder.WithSession(d.BaseDatabase, template)
if err != nil {
return err
}
d.Builder = b
connFn := func() error {
sess, err := sql.Open("mysql", d.ConnectionURL().String())
if err == nil {
sess.SetConnMaxLifetime(connMaxLifetime)
sess.SetMaxIdleConns(maxIdleConns)
sess.SetMaxOpenConns(maxOpenConns)
return d.BaseDatabase.BindSession(sess)
}
return err
}
if err := d.BaseDatabase.WaitForConnection(connFn); err != nil {
return err
}
return nil
}
func (d *database) open() error {
// Binding with sqladapter's logic.
d.BaseDatabase = sqladapter.NewBaseDatabase(d)
// Binding with sqlbuilder.
b, err := sqlbuilder.WithSession(d.BaseDatabase, template)
if err != nil {
return err
}
d.Builder = b
openFn := func() error {
openFiles := atomic.LoadInt32(&fileOpenCount)
if openFiles < maxOpenFiles {
sess, err := sql.Open("sqlite3", d.ConnectionURL().String())
if err == nil {
if err := d.BaseDatabase.BindSession(sess); err != nil {
return err
}
atomic.AddInt32(&fileOpenCount, 1)
return nil
}
return err
}
return errTooManyOpenFiles
}
if err := d.BaseDatabase.WaitForConnection(openFn); err != nil {
return err
}
return nil
}
func (d *database) clone() (*database, error) {
clone, err := newDatabase(d.connURL)
if err != nil {
return nil, err
}
clone.BaseDatabase, err = d.BindClone(clone)
if err != nil {
return nil, err
}
b, err := sqlbuilder.WithSession(clone.BaseDatabase, template)
if err != nil {
return nil, err
}
clone.Builder = b
return clone, nil
}
// New wraps the given *sql.DB session and creates a new db session.
func New(sess *sql.DB) (sqlbuilder.Database, error) {
d, err := newDatabase(nil)
if err != nil {
return nil, err
}
// Binding with sqladapter's logic.
d.BaseDatabase = sqladapter.NewBaseDatabase(d)
// Binding with sqlbuilder.
b, err := sqlbuilder.WithSession(d.BaseDatabase, template)
if err != nil {
return nil, err
}
d.Builder = b
if err := d.BaseDatabase.BindSession(sess); err != nil {
return nil, err
}
return d, nil
}
// NewTx returns a transaction session.
func NewTx(sqlTx *sql.Tx) (sqlbuilder.Tx, error) {
d, err := newDatabase(nil)
if err != nil {
return nil, err
}
// Binding with sqladapter's logic.
d.BaseDatabase = sqladapter.NewBaseDatabase(d)
// Binding with sqlbuilder.
b, err := sqlbuilder.WithSession(d.BaseDatabase, template)
if err != nil {
return nil, err
}
d.Builder = b
if err := d.BaseDatabase.BindTx(sqlTx); err != nil {
return nil, err
}
newTx := sqladapter.NewTx(d)
return &tx{DatabaseTx: newTx}, nil
}