-
Notifications
You must be signed in to change notification settings - Fork 0
/
plugin.go
78 lines (64 loc) · 2.56 KB
/
plugin.go
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
// Copyright 2021 dairongpeng <dairongpeng@foxmail.com>. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package db
import (
"time"
"gorm.io/gorm"
"github.com/dairongpeng/leona/pkg/log"
)
const (
callBackBeforeName = "core:before"
callBackAfterName = "core:after"
startTime = "_start_time"
)
// TracePlugin defines gorm plugin used to trace sql.
type TracePlugin struct{}
// Name returns the name of trace plugin.
func (op *TracePlugin) Name() string {
return "tracePlugin"
}
// Initialize initialize the trace plugin.
func (op *TracePlugin) Initialize(db *gorm.DB) (err error) {
// 开始前
_ = db.Callback().Create().Before("gorm:before_create").Register(callBackBeforeName, before)
_ = db.Callback().Query().Before("gorm:query").Register(callBackBeforeName, before)
_ = db.Callback().Delete().Before("gorm:before_delete").Register(callBackBeforeName, before)
_ = db.Callback().Update().Before("gorm:setup_reflect_value").Register(callBackBeforeName, before)
_ = db.Callback().Row().Before("gorm:row").Register(callBackBeforeName, before)
_ = db.Callback().Raw().Before("gorm:raw").Register(callBackBeforeName, before)
// 结束后
_ = db.Callback().Create().After("gorm:after_create").Register(callBackAfterName, after)
_ = db.Callback().Query().After("gorm:after_query").Register(callBackAfterName, after)
_ = db.Callback().Delete().After("gorm:after_delete").Register(callBackAfterName, after)
_ = db.Callback().Update().After("gorm:after_update").Register(callBackAfterName, after)
_ = db.Callback().Row().After("gorm:row").Register(callBackAfterName, after)
_ = db.Callback().Raw().After("gorm:raw").Register(callBackAfterName, after)
return
}
var _ gorm.Plugin = &TracePlugin{}
func before(db *gorm.DB) {
db.InstanceSet(startTime, time.Now())
}
func after(db *gorm.DB) {
_ts, isExist := db.InstanceGet(startTime)
if !isExist {
return
}
ts, ok := _ts.(time.Time)
if !ok {
return
}
// sql := db.Dialector.Explain(db.Statement.SQL.String(), db.Statement.Vars...)
log.Infof("sql cost time: %fs", time.Since(ts).Seconds())
}