56 lines
1.2 KiB
Go
56 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
|
||
|
|
}
|