Document Logger

README.md

@@ -10,6 +10,7 @@ Yet Another ORM library for Go, aims for developer friendly
 * Soft Delete
 * Auto Migration
 * Transaction
+* Logger Support
 * Every feature comes with tests
 * Convention Over Configuration
 * Developer Friendly
@@ -636,6 +637,28 @@ tx.Rollback()
 tx.Commit()
 ```
 
+## Logger
+
+Grom has builtin logger support, enable it with:
+
+```go
+db.LogMode(true)
+```
+
+![logger](https://github.com/jinzhu/gorm/raw/master/images/logger.png)
+
+```go
+// Use your own logger
+// Checkout gorm's default logger for how to format messages: https://github.com/jinzhu/gorm/blob/master/logger.go#files
+db.SetLogger(log.New(os.Stdout, "\r\n", 0))
+
+// Disable log
+db.LogMode(false)
+
+// Enable log for a single operation, make debug easy
+db.Debug().Where("name = ?", "jinzhu").First(&User{})
+```
+
 ## Run Raw SQl
 
 ```go

gorm_test.go

@@ -86,6 +86,7 @@ func init() {
 	// GRANT ALL ON gorm.* TO 'gorm'@'localhost';
 	// db, err = Open("mysql", "gorm:gorm@/gorm?charset=utf8&parseTime=True")
 	// db, err = Open("sqlite3", "/tmp/gorm.db")
+	// db.SetLogger(log.New(os.Stdout, "\r\n", 0))
 	db.LogMode(true)
 
 	if err != nil {