// Copyright 2015 The Xorm Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package xorm import ( "fmt" "os" "reflect" "runtime" "sync" "time" "github.com/go-xorm/core" ) const ( // Version show the xorm's version Version string = "0.6.2.0401" ) func regDrvsNDialects() bool { providedDrvsNDialects := map[string]struct { dbType core.DbType getDriver func() core.Driver getDialect func() core.Dialect }{ "mssql": {"mssql", func() core.Driver { return &odbcDriver{} }, func() core.Dialect { return &mssql{} }}, "odbc": {"mssql", func() core.Driver { return &odbcDriver{} }, func() core.Dialect { return &mssql{} }}, // !nashtsai! TODO change this when supporting MS Access "mysql": {"mysql", func() core.Driver { return &mysqlDriver{} }, func() core.Dialect { return &mysql{} }}, "mymysql": {"mysql", func() core.Driver { return &mymysqlDriver{} }, func() core.Dialect { return &mysql{} }}, "postgres": {"postgres", func() core.Driver { return &pqDriver{} }, func() core.Dialect { return &postgres{} }}, "pgx": {"postgres", func() core.Driver { return &pqDriver{} }, func() core.Dialect { return &postgres{} }}, "sqlite3": {"sqlite3", func() core.Driver { return &sqlite3Driver{} }, func() core.Dialect { return &sqlite3{} }}, "oci8": {"oracle", func() core.Driver { return &oci8Driver{} }, func() core.Dialect { return &oracle{} }}, "goracle": {"oracle", func() core.Driver { return &goracleDriver{} }, func() core.Dialect { return &oracle{} }}, } for driverName, v := range providedDrvsNDialects { if driver := core.QueryDriver(driverName); driver == nil { core.RegisterDriver(driverName, v.getDriver()) core.RegisterDialect(v.dbType, v.getDialect) } } return true } func close(engine *Engine) { engine.Close() } // NewEngine new a db manager according to the parameter. Currently support four // drivers func NewEngine(driverName string, dataSourceName string) (*Engine, error) { regDrvsNDialects() driver := core.QueryDriver(driverName) if driver == nil { return nil, fmt.Errorf("Unsupported driver name: %v", driverName) } uri, err := driver.Parse(driverName, dataSourceName) if err != nil { return nil, err } dialect := core.QueryDialect(uri.DbType) if dialect == nil { return nil, fmt.Errorf("Unsupported dialect type: %v", uri.DbType) } db, err := core.Open(driverName, dataSourceName) if err != nil { return nil, err } err = dialect.Init(db, uri, driverName, dataSourceName) if err != nil { return nil, err } engine := &Engine{ db: db, dialect: dialect, Tables: make(map[reflect.Type]*core.Table), mutex: &sync.RWMutex{}, TagIdentifier: "xorm", TZLocation: time.Local, tagHandlers: defaultTagHandlers, } logger := NewSimpleLogger(os.Stdout) logger.SetLevel(core.LOG_INFO) engine.SetLogger(logger) engine.SetMapper(core.NewCacheMapper(new(core.SnakeMapper))) runtime.SetFinalizer(engine, close) return engine, nil } // Clone clone an engine func (engine *Engine) Clone() (*Engine, error) { return NewEngine(engine.DriverName(), engine.DataSourceName()) }