forgejo/models/db/engine.go

290 lines
8.7 KiB
Go
Raw Normal View History

2014-02-12 21:49:46 +04:00
// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2018 The Gitea Authors. All rights reserved.
2014-02-12 21:49:46 +04:00
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package db
2014-02-19 02:48:02 +04:00
import (
"context"
2014-10-19 09:35:24 +04:00
"database/sql"
2014-02-19 02:48:02 +04:00
"fmt"
"io"
"reflect"
"strings"
2014-02-19 02:48:02 +04:00
"code.gitea.io/gitea/modules/setting"
2019-10-17 12:26:49 +03:00
"xorm.io/xorm"
"xorm.io/xorm/names"
"xorm.io/xorm/schemas"
2016-11-26 03:20:18 +03:00
_ "github.com/denisenkom/go-mssqldb" // Needed for the MSSQL driver
_ "github.com/go-sql-driver/mysql" // Needed for the MySQL driver
_ "github.com/lib/pq" // Needed for the Postgresql driver
2014-02-19 02:48:02 +04:00
)
var (
x *xorm.Engine
tables []interface{}
initFuncs []func() error
// HasEngine specifies if we have a xorm.Engine
HasEngine bool
)
2014-10-19 09:35:24 +04:00
// Engine represents a xorm engine or session.
type Engine interface {
Table(tableNameOrBean interface{}) *xorm.Session
Count(...interface{}) (int64, error)
2017-02-04 19:00:07 +03:00
Decr(column string, arg ...interface{}) *xorm.Session
Delete(...interface{}) (int64, error)
Exec(...interface{}) (sql.Result, error)
2015-02-13 08:58:46 +03:00
Find(interface{}, ...interface{}) error
Get(beans ...interface{}) (bool, error)
ID(interface{}) *xorm.Session
In(string, ...interface{}) *xorm.Session
2017-02-04 19:00:07 +03:00
Incr(column string, arg ...interface{}) *xorm.Session
2014-10-19 09:35:24 +04:00
Insert(...interface{}) (int64, error)
Iterate(interface{}, xorm.IterFunc) error
Join(joinOperator string, tablename interface{}, condition string, args ...interface{}) *xorm.Session
2016-11-10 10:20:48 +03:00
SQL(interface{}, ...interface{}) *xorm.Session
2016-09-23 02:38:12 +03:00
Where(interface{}, ...interface{}) *xorm.Session
2019-06-12 22:41:28 +03:00
Asc(colNames ...string) *xorm.Session
Desc(colNames ...string) *xorm.Session
API add/generalize pagination (#9452) * paginate results * fixed deadlock * prevented breaking change * updated swagger * go fmt * fixed find topic * go mod tidy * go mod vendor with go1.13.5 * fixed repo find topics * fixed unit test * added Limit method to Engine struct; use engine variable when provided; fixed gitignore * use ItemsPerPage for default pagesize; fix GetWatchers, getOrgUsersByOrgID and GetStargazers; fix GetAllCommits headers; reverted some changed behaviors * set Page value on Home route * improved memory allocations * fixed response headers * removed logfiles * fixed import order * import order * improved swagger * added function to get models.ListOptions from context * removed pagesize diff on unit test * fixed imports * removed unnecessary struct field * fixed go fmt * scoped PR * code improvements * code improvements * go mod tidy * fixed import order * fixed commit statuses session * fixed files headers * fixed headers; added pagination for notifications * go mod tidy * go fmt * removed Private from user search options; added setting.UI.IssuePagingNum as default valeu on repo's issues list * Apply suggestions from code review Co-Authored-By: 6543 <6543@obermui.de> Co-Authored-By: zeripath <art27@cantab.net> * fixed build error * CI.restart() * fixed merge conflicts resolve * fixed conflicts resolve * improved FindTrackedTimesOptions.ToOptions() method * added backwards compatibility on ListReleases request; fixed issue tracked time ToSession * fixed build error; fixed swagger template * fixed swagger template * fixed ListReleases backwards compatibility * added page to user search route Co-authored-by: techknowlogick <matti@mdranta.net> Co-authored-by: 6543 <6543@obermui.de> Co-authored-by: zeripath <art27@cantab.net>
2020-01-24 22:00:29 +03:00
Limit(limit int, start ...int) *xorm.Session
NoAutoTime() *xorm.Session
API add/generalize pagination (#9452) * paginate results * fixed deadlock * prevented breaking change * updated swagger * go fmt * fixed find topic * go mod tidy * go mod vendor with go1.13.5 * fixed repo find topics * fixed unit test * added Limit method to Engine struct; use engine variable when provided; fixed gitignore * use ItemsPerPage for default pagesize; fix GetWatchers, getOrgUsersByOrgID and GetStargazers; fix GetAllCommits headers; reverted some changed behaviors * set Page value on Home route * improved memory allocations * fixed response headers * removed logfiles * fixed import order * import order * improved swagger * added function to get models.ListOptions from context * removed pagesize diff on unit test * fixed imports * removed unnecessary struct field * fixed go fmt * scoped PR * code improvements * code improvements * go mod tidy * fixed import order * fixed commit statuses session * fixed files headers * fixed headers; added pagination for notifications * go mod tidy * go fmt * removed Private from user search options; added setting.UI.IssuePagingNum as default valeu on repo's issues list * Apply suggestions from code review Co-Authored-By: 6543 <6543@obermui.de> Co-Authored-By: zeripath <art27@cantab.net> * fixed build error * CI.restart() * fixed merge conflicts resolve * fixed conflicts resolve * improved FindTrackedTimesOptions.ToOptions() method * added backwards compatibility on ListReleases request; fixed issue tracked time ToSession * fixed build error; fixed swagger template * fixed swagger template * fixed ListReleases backwards compatibility * added page to user search route Co-authored-by: techknowlogick <matti@mdranta.net> Co-authored-by: 6543 <6543@obermui.de> Co-authored-by: zeripath <art27@cantab.net>
2020-01-24 22:00:29 +03:00
SumInt(bean interface{}, columnName string) (res int64, err error)
Sync2(...interface{}) error
Select(string) *xorm.Session
NotIn(string, ...interface{}) *xorm.Session
OrderBy(interface{}, ...interface{}) *xorm.Session
Exist(...interface{}) (bool, error)
Distinct(...string) *xorm.Session
Query(...interface{}) ([]map[string][]byte, error)
Cols(...string) *xorm.Session
Context(ctx context.Context) *xorm.Session
Ping() error
2014-10-19 09:35:24 +04:00
}
// TableInfo returns table's information via an object
func TableInfo(v interface{}) (*schemas.Table, error) {
return x.TableInfo(v)
}
// DumpTables dump tables information
func DumpTables(tables []*schemas.Table, w io.Writer, tp ...schemas.DBType) error {
return x.DumpTables(tables, w, tp...)
}
2016-11-26 03:20:18 +03:00
// RegisterModel registers model, if initfunc provided, it will be invoked after data model sync
func RegisterModel(bean interface{}, initFunc ...func() error) {
tables = append(tables, bean)
if len(initFuncs) > 0 && initFunc[0] != nil {
initFuncs = append(initFuncs, initFunc[0])
}
}
2014-03-21 09:48:10 +04:00
2014-04-05 18:46:32 +04:00
func init() {
2016-11-26 03:20:18 +03:00
gonicNames := []string{"SSL", "UID"}
2015-08-27 18:06:14 +03:00
for _, name := range gonicNames {
names.LintGonicMapper[name] = true
2015-08-27 18:06:14 +03:00
}
2014-04-05 18:46:32 +04:00
}
// newXORMEngine returns a new XORM engine from the configuration
func newXORMEngine() (*xorm.Engine, error) {
connStr, err := setting.DBConnStr()
if err != nil {
return nil, err
2014-03-30 18:47:08 +04:00
}
var engine *xorm.Engine
if setting.Database.UsePostgreSQL && len(setting.Database.Schema) > 0 {
// OK whilst we sort out our schema issues - create a schema aware postgres
registerPostgresSchemaDriver()
engine, err = xorm.NewEngine("postgresschema", connStr)
} else {
engine, err = xorm.NewEngine(setting.Database.Type, connStr)
}
if err != nil {
return nil, err
}
if setting.Database.Type == "mysql" {
engine.Dialect().SetParams(map[string]string{"rowFormat": "DYNAMIC"})
} else if setting.Database.Type == "mssql" {
engine.Dialect().SetParams(map[string]string{"DEFAULT_VARCHAR": "nvarchar"})
}
engine.SetSchema(setting.Database.Schema)
return engine, nil
}
// SyncAllTables sync the schemas of all tables, is required by unit test code
func SyncAllTables() error {
return x.StoreEngine("InnoDB").Sync2(tables...)
}
// InitEngine initializes the xorm.Engine and sets it as db.DefaultContext
func InitEngine(ctx context.Context) error {
xormEngine, err := newXORMEngine()
2014-02-19 02:48:02 +04:00
if err != nil {
return fmt.Errorf("failed to connect to database: %v", err)
2014-02-19 02:48:02 +04:00
}
xormEngine.SetMapper(names.GonicMapper{})
2014-12-07 04:22:48 +03:00
// WARNING: for serv command, MUST remove the output to os.stdout,
2014-03-21 00:04:56 +04:00
// so use log file to instead print to stdout.
xormEngine.SetLogger(NewXORMLogger(setting.Database.LogSQL))
xormEngine.ShowSQL(setting.Database.LogSQL)
xormEngine.SetMaxOpenConns(setting.Database.MaxOpenConns)
xormEngine.SetMaxIdleConns(setting.Database.MaxIdleConns)
xormEngine.SetConnMaxLifetime(setting.Database.ConnMaxLifetime)
xormEngine.SetDefaultContext(ctx)
SetDefaultEngine(ctx, xormEngine)
return nil
}
// SetDefaultEngine sets the default engine for db
func SetDefaultEngine(ctx context.Context, eng *xorm.Engine) {
x = eng
DefaultContext = &Context{
Context: ctx,
e: x,
}
2014-02-19 02:48:02 +04:00
}
// UnsetDefaultEngine closes and unsets the default engine
// We hope the SetDefaultEngine and UnsetDefaultEngine can be paired, but it's impossible now,
// there are many calls to InitEngine -> SetDefaultEngine directly to overwrite the `x` and DefaultContext without close
// Global database engine related functions are all racy and there is no graceful close right now.
func UnsetDefaultEngine() {
if x != nil {
_ = x.Close()
x = nil
}
DefaultContext = nil
}
// InitEngineWithMigration initializes a new xorm.Engine and sets it as the db.DefaultContext
// This function must never call .Sync2() if the provided migration function fails.
// When called from the "doctor" command, the migration function is a version check
// that prevents the doctor from fixing anything in the database if the migration level
// is different from the expected value.
func InitEngineWithMigration(ctx context.Context, migrateFunc func(*xorm.Engine) error) (err error) {
if err = InitEngine(ctx); err != nil {
return err
2014-04-05 18:46:32 +04:00
}
2015-01-22 15:49:52 +03:00
if err = x.Ping(); err != nil {
return err
}
// We have to run migrateFunc here in case the user is re-running installation on a previously created DB.
// If we do not then table schemas will be changed and there will be conflicts when the migrations run properly.
//
// Installation should only be being re-run if users want to recover an old database.
// However, we should think carefully about should we support re-install on an installed instance,
// as there may be other problems due to secret reinitialization.
if err = migrateFunc(x); err != nil {
2015-02-12 05:58:37 +03:00
return fmt.Errorf("migrate: %v", err)
2015-01-22 15:49:52 +03:00
}
if err = SyncAllTables(); err != nil {
return fmt.Errorf("sync database struct error: %v", err)
2014-02-19 13:50:53 +04:00
}
2015-01-23 10:54:16 +03:00
for _, initFunc := range initFuncs {
if err := initFunc(); err != nil {
return fmt.Errorf("initFunc failed: %v", err)
}
}
return nil
2014-02-19 02:48:02 +04:00
}
2014-03-21 00:04:56 +04:00
// NamesToBean return a list of beans or an error
func NamesToBean(names ...string) ([]interface{}, error) {
beans := []interface{}{}
if len(names) == 0 {
beans = append(beans, tables...)
return beans, nil
}
// Need to map provided names to beans...
beanMap := make(map[string]interface{})
for _, bean := range tables {
beanMap[strings.ToLower(reflect.Indirect(reflect.ValueOf(bean)).Type().Name())] = bean
beanMap[strings.ToLower(x.TableName(bean))] = bean
beanMap[strings.ToLower(x.TableName(bean, true))] = bean
}
gotBean := make(map[interface{}]bool)
for _, name := range names {
bean, ok := beanMap[strings.ToLower(strings.TrimSpace(name))]
if !ok {
return nil, fmt.Errorf("No table found that matches: %s", name)
}
if !gotBean[bean] {
beans = append(beans, bean)
gotBean[bean] = true
}
}
return beans, nil
}
// DumpDatabase dumps all data from database according the special database SQL syntax to file system.
func DumpDatabase(filePath, dbType string) error {
var tbs []*schemas.Table
for _, t := range tables {
t, err := x.TableInfo(t)
if err != nil {
return err
}
tbs = append(tbs, t)
}
type Version struct {
ID int64 `xorm:"pk autoincr"`
Version int64
}
t, err := x.TableInfo(&Version{})
if err != nil {
return err
}
tbs = append(tbs, t)
if len(dbType) > 0 {
return x.DumpTablesToFile(tbs, filePath, schemas.DBType(dbType))
}
return x.DumpTablesToFile(tbs, filePath)
2014-05-05 08:55:17 +04:00
}
// MaxBatchInsertSize returns the table's max batch insert size
func MaxBatchInsertSize(bean interface{}) int {
t, err := x.TableInfo(bean)
if err != nil {
return 50
}
return 999 / len(t.ColumnsSeq())
}
// IsTableNotEmpty returns true if table has at least one record
func IsTableNotEmpty(tableName string) (bool, error) {
return x.Table(tableName).Exist()
}
// DeleteAllRecords will delete all the records of this table
func DeleteAllRecords(tableName string) error {
_, err := x.Exec(fmt.Sprintf("DELETE FROM %s", tableName))
return err
}
// GetMaxID will return max id of the table
func GetMaxID(beanOrTableName interface{}) (maxID int64, err error) {
_, err = x.Select("MAX(id)").Table(beanOrTableName).Get(&maxID)
return
}