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gitea/models/context.go
Lunny Xiao 5a438ee3c0
Move all mail related codes from models to services/mailer (#7200)
* move all mail related codes from models to modules/mailer

* fix lint

* use DBContext instead Engine

* use WithContext not WithEngine

* Use DBContext instead of Engine

* don't use defer when sess.Close()

* move DBContext to context.go and add some methods

* move mailer from modules/ to services

* fix lint

* fix tests

* fix fmt

* add gitea copyright

* fix tests

* don't expose db functions

* make code clear

* add DefaultDBContext

* fix build

* fix bug
2019-09-24 13:02:49 +08:00

55 lines
1.2 KiB
Go

// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package models
// DBContext represents a db context
type DBContext struct {
e Engine
}
// DefaultDBContext represents a DBContext with default Engine
func DefaultDBContext() DBContext {
return DBContext{x}
}
// Committer represents an interface to Commit or Close the dbcontext
type Committer interface {
Commit() error
Close()
}
// TxDBContext represents a transaction DBContext
func TxDBContext() (DBContext, Committer, error) {
sess := x.NewSession()
if err := sess.Begin(); err != nil {
sess.Close()
return DBContext{}, nil, err
}
return DBContext{sess}, sess, nil
}
// WithContext represents executing database operations
func WithContext(f func(ctx DBContext) error) error {
return f(DBContext{x})
}
// WithTx represents executing database operations on a trasaction
func WithTx(f func(ctx DBContext) error) error {
sess := x.NewSession()
if err := sess.Begin(); err != nil {
sess.Close()
return err
}
if err := f(DBContext{sess}); err != nil {
sess.Close()
return err
}
err := sess.Commit()
sess.Close()
return err
}