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74 lines
1.8 KiB
74 lines
1.8 KiB
// Copyright 2015 The Xorm Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build go1.11
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package xorm
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import (
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"context"
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"os"
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"runtime"
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"time"
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"xorm.io/xorm/caches"
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"xorm.io/xorm/dialects"
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"xorm.io/xorm/log"
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"xorm.io/xorm/names"
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"xorm.io/xorm/schemas"
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"xorm.io/xorm/tags"
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)
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func close(engine *Engine) {
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engine.Close()
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}
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// NewEngine new a db manager according to the parameter. Currently support four
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// drivers
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func NewEngine(driverName string, dataSourceName string) (*Engine, error) {
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dialect, err := dialects.OpenDialect(driverName, dataSourceName)
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if err != nil {
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return nil, err
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}
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cacherMgr := caches.NewManager()
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mapper := names.NewCacheMapper(new(names.SnakeMapper))
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tagParser := tags.NewParser("xorm", dialect, mapper, mapper, cacherMgr)
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engine := &Engine{
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dialect: dialect,
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TZLocation: time.Local,
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defaultContext: context.Background(),
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cacherMgr: cacherMgr,
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tagParser: tagParser,
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driverName: driverName,
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dataSourceName: dataSourceName,
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}
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if dialect.URI().DBType == schemas.SQLITE {
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engine.DatabaseTZ = time.UTC
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} else {
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engine.DatabaseTZ = time.Local
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}
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logger := log.NewSimpleLogger(os.Stdout)
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logger.SetLevel(log.LOG_INFO)
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engine.SetLogger(log.NewLoggerAdapter(logger))
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runtime.SetFinalizer(engine, close)
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return engine, nil
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}
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// NewEngineWithParams new a db manager with params. The params will be passed to dialects.
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func NewEngineWithParams(driverName string, dataSourceName string, params map[string]string) (*Engine, error) {
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engine, err := NewEngine(driverName, dataSourceName)
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engine.dialect.SetParams(params)
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return engine, err
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}
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// Clone clone an engine
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func (engine *Engine) Clone() (*Engine, error) {
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return NewEngine(engine.DriverName(), engine.DataSourceName())
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}
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