1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
// 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.
// +build go1.11
package xorm
import (
"context"
"os"
"runtime"
"time"
"xorm.io/xorm/caches"
"xorm.io/xorm/core"
"xorm.io/xorm/dialects"
"xorm.io/xorm/log"
"xorm.io/xorm/names"
"xorm.io/xorm/schemas"
"xorm.io/xorm/tags"
)
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) {
dialect, err := dialects.OpenDialect(driverName, dataSourceName)
if err != nil {
return nil, err
}
db, err := core.Open(driverName, dataSourceName)
if err != nil {
return nil, err
}
cacherMgr := caches.NewManager()
mapper := names.NewCacheMapper(new(names.SnakeMapper))
tagParser := tags.NewParser("xorm", dialect, mapper, mapper, cacherMgr)
engine := &Engine{
dialect: dialect,
TZLocation: time.Local,
defaultContext: context.Background(),
cacherMgr: cacherMgr,
tagParser: tagParser,
driverName: driverName,
dataSourceName: dataSourceName,
db: db,
}
if dialect.URI().DBType == schemas.SQLITE {
engine.DatabaseTZ = time.UTC
} else {
engine.DatabaseTZ = time.Local
}
logger := log.NewSimpleLogger(os.Stdout)
logger.SetLevel(log.LOG_INFO)
engine.SetLogger(log.NewLoggerAdapter(logger))
runtime.SetFinalizer(engine, close)
return engine, nil
}
// NewEngineWithParams new a db manager with params. The params will be passed to dialects.
func NewEngineWithParams(driverName string, dataSourceName string, params map[string]string) (*Engine, error) {
engine, err := NewEngine(driverName, dataSourceName)
engine.dialect.SetParams(params)
return engine, err
}
// Clone clone an engine
func (engine *Engine) Clone() (*Engine, error) {
return NewEngine(engine.DriverName(), engine.DataSourceName())
}
|
