45 lines
1.3 KiB
Go
45 lines
1.3 KiB
Go
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// Copyright 2012 James Cooper. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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// Package gorp provides a simple way to marshal Go structs to and from
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// SQL databases. It uses the database/sql package, and should work with any
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// compliant database/sql driver.
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//
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// Source code and project home:
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// https://github.com/go-gorp/gorp
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//
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package gorp
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import "fmt"
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type GorpLogger interface {
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Printf(format string, v ...interface{})
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}
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// TraceOn turns on SQL statement logging for this DbMap. After this is
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// called, all SQL statements will be sent to the logger. If prefix is
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// a non-empty string, it will be written to the front of all logged
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// strings, which can aid in filtering log lines.
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//
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// Use TraceOn if you want to spy on the SQL statements that gorp
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// generates.
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//
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// Note that the base log.Logger type satisfies GorpLogger, but adapters can
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// easily be written for other logging packages (e.g., the golang-sanctioned
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// glog framework).
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func (m *DbMap) TraceOn(prefix string, logger GorpLogger) {
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m.logger = logger
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if prefix == "" {
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m.logPrefix = prefix
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} else {
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m.logPrefix = fmt.Sprintf("%s ", prefix)
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}
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}
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// TraceOff turns off tracing. It is idempotent.
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func (m *DbMap) TraceOff() {
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m.logger = nil
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m.logPrefix = ""
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}
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