84 lines
2.2 KiB
Go
84 lines
2.2 KiB
Go
package mysql
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import (
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"time"
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"mini-chat/internal/pkg/core"
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"mini-chat/internal/pkg/timeutil"
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"mini-chat/internal/pkg/trace"
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"gorm.io/gorm"
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"gorm.io/gorm/utils"
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)
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const (
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callBackBeforeName = "core:before"
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callBackAfterName = "core:after"
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startTime = "_start_time"
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)
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type TracePlugin struct{}
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func (op *TracePlugin) Name() string {
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return "tracePlugin"
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}
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func (op *TracePlugin) Initialize(db *gorm.DB) (err error) {
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// 开始前
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_ = db.Callback().Create().Before("gorm:before_create").Register(callBackBeforeName, before)
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_ = db.Callback().Query().Before("gorm:query").Register(callBackBeforeName, before)
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_ = db.Callback().Delete().Before("gorm:before_delete").Register(callBackBeforeName, before)
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_ = db.Callback().Update().Before("gorm:setup_reflect_value").Register(callBackBeforeName, before)
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_ = db.Callback().Row().Before("gorm:row").Register(callBackBeforeName, before)
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_ = db.Callback().Raw().Before("gorm:raw").Register(callBackBeforeName, before)
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// 结束后
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_ = db.Callback().Create().After("gorm:after_create").Register(callBackAfterName, after)
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_ = db.Callback().Query().After("gorm:after_query").Register(callBackAfterName, after)
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_ = db.Callback().Delete().After("gorm:after_delete").Register(callBackAfterName, after)
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_ = db.Callback().Update().After("gorm:after_update").Register(callBackAfterName, after)
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_ = db.Callback().Row().After("gorm:row").Register(callBackAfterName, after)
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_ = db.Callback().Raw().After("gorm:raw").Register(callBackAfterName, after)
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return
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}
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var _ gorm.Plugin = &TracePlugin{}
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func before(db *gorm.DB) {
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db.InstanceSet(startTime, time.Now())
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return
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}
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func after(db *gorm.DB) {
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_ctx := db.Statement.Context
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ctx, ok := _ctx.(core.StdContext)
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if !ok {
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return
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}
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_ts, isExist := db.InstanceGet(startTime)
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if !isExist {
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return
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}
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ts, ok := _ts.(time.Time)
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if !ok {
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return
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}
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sql := db.Dialector.Explain(db.Statement.SQL.String(), db.Statement.Vars...)
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sqlInfo := new(trace.SQL)
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sqlInfo.Time = timeutil.CSTLayoutString()
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sqlInfo.SQL = sql
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sqlInfo.Stack = utils.FileWithLineNum()
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sqlInfo.Rows = db.Statement.RowsAffected
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sqlInfo.CostSeconds = time.Since(ts).Seconds()
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if ctx.Trace != nil {
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ctx.Trace.AppendSQL(sqlInfo)
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}
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return
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}
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