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1732 lines
47 KiB
Go
1732 lines
47 KiB
Go
// Copyright 2015 The Xorm Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package xorm
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import (
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"bufio"
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"bytes"
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"database/sql"
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"encoding/gob"
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"errors"
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"fmt"
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"io"
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"os"
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"reflect"
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/go-xorm/core"
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)
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// Engine is the major struct of xorm, it means a database manager.
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// Commonly, an application only need one engine
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type Engine struct {
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db *core.DB
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dialect core.Dialect
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ColumnMapper core.IMapper
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TableMapper core.IMapper
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TagIdentifier string
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Tables map[reflect.Type]*core.Table
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mutex *sync.RWMutex
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Cacher core.Cacher
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showSQL bool
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showExecTime bool
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logger core.ILogger
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TZLocation *time.Location
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DatabaseTZ *time.Location // The timezone of the database
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disableGlobalCache bool
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}
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// ShowSQL show SQL statment or not on logger if log level is great than INFO
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func (engine *Engine) ShowSQL(show ...bool) {
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engine.logger.ShowSQL(show...)
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if len(show) == 0 {
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engine.showSQL = true
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} else {
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engine.showSQL = show[0]
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}
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}
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// ShowExecTime show SQL statment and execute time or not on logger if log level is great than INFO
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func (engine *Engine) ShowExecTime(show ...bool) {
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if len(show) == 0 {
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engine.showExecTime = true
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} else {
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engine.showExecTime = show[0]
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}
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}
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// Logger return the logger interface
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func (engine *Engine) Logger() core.ILogger {
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return engine.logger
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}
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// SetLogger set the new logger
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func (engine *Engine) SetLogger(logger core.ILogger) {
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engine.logger = logger
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engine.dialect.SetLogger(logger)
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}
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// SetDisableGlobalCache disable global cache or not
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func (engine *Engine) SetDisableGlobalCache(disable bool) {
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if engine.disableGlobalCache != disable {
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engine.disableGlobalCache = disable
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}
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}
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// DriverName return the current sql driver's name
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func (engine *Engine) DriverName() string {
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return engine.dialect.DriverName()
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}
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// DataSourceName return the current connection string
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func (engine *Engine) DataSourceName() string {
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return engine.dialect.DataSourceName()
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}
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// SetMapper set the name mapping rules
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func (engine *Engine) SetMapper(mapper core.IMapper) {
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engine.SetTableMapper(mapper)
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engine.SetColumnMapper(mapper)
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}
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// SetTableMapper set the table name mapping rule
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func (engine *Engine) SetTableMapper(mapper core.IMapper) {
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engine.TableMapper = mapper
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}
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// SetColumnMapper set the column name mapping rule
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func (engine *Engine) SetColumnMapper(mapper core.IMapper) {
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engine.ColumnMapper = mapper
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}
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// SupportInsertMany If engine's database support batch insert records like
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// "insert into user values (name, age), (name, age)".
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// When the return is ture, then engine.Insert(&users) will
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// generate batch sql and exeute.
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func (engine *Engine) SupportInsertMany() bool {
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return engine.dialect.SupportInsertMany()
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}
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// QuoteStr Engine's database use which charactor as quote.
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// mysql, sqlite use ` and postgres use "
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func (engine *Engine) QuoteStr() string {
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return engine.dialect.QuoteStr()
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}
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// Quote Use QuoteStr quote the string sql
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func (engine *Engine) Quote(value string) string {
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value = strings.TrimSpace(value)
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if len(value) == 0 {
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return value
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}
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if string(value[0]) == engine.dialect.QuoteStr() || value[0] == '`' {
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return value
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}
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value = strings.Replace(value, ".", engine.dialect.QuoteStr()+"."+engine.dialect.QuoteStr(), -1)
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return engine.dialect.QuoteStr() + value + engine.dialect.QuoteStr()
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}
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// QuoteTo quotes string and writes into the buffer
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func (engine *Engine) QuoteTo(buf *bytes.Buffer, value string) {
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if buf == nil {
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return
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}
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value = strings.TrimSpace(value)
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if value == "" {
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return
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}
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if string(value[0]) == engine.dialect.QuoteStr() || value[0] == '`' {
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buf.WriteString(value)
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return
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}
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value = strings.Replace(value, ".", engine.dialect.QuoteStr()+"."+engine.dialect.QuoteStr(), -1)
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buf.WriteString(engine.dialect.QuoteStr())
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buf.WriteString(value)
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buf.WriteString(engine.dialect.QuoteStr())
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}
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func (engine *Engine) quote(sql string) string {
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return engine.dialect.QuoteStr() + sql + engine.dialect.QuoteStr()
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}
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// SqlType will be depracated, please use SQLType instead
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//
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// Deprecated: use SQLType instead
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func (engine *Engine) SqlType(c *core.Column) string {
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return engine.SQLType(c)
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}
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// SQLType A simple wrapper to dialect's core.SqlType method
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func (engine *Engine) SQLType(c *core.Column) string {
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return engine.dialect.SqlType(c)
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}
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// AutoIncrStr Database's autoincrement statement
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func (engine *Engine) AutoIncrStr() string {
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return engine.dialect.AutoIncrStr()
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}
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// SetMaxOpenConns is only available for go 1.2+
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func (engine *Engine) SetMaxOpenConns(conns int) {
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engine.db.SetMaxOpenConns(conns)
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}
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// SetMaxIdleConns set the max idle connections on pool, default is 2
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func (engine *Engine) SetMaxIdleConns(conns int) {
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engine.db.SetMaxIdleConns(conns)
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}
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// SetDefaultCacher set the default cacher. Xorm's default not enable cacher.
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func (engine *Engine) SetDefaultCacher(cacher core.Cacher) {
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engine.Cacher = cacher
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}
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// NoCache If you has set default cacher, and you want temporilly stop use cache,
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// you can use NoCache()
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func (engine *Engine) NoCache() *Session {
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session := engine.NewSession()
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session.IsAutoClose = true
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return session.NoCache()
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}
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// NoCascade If you do not want to auto cascade load object
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func (engine *Engine) NoCascade() *Session {
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session := engine.NewSession()
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session.IsAutoClose = true
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return session.NoCascade()
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}
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// MapCacher Set a table use a special cacher
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func (engine *Engine) MapCacher(bean interface{}, cacher core.Cacher) {
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v := rValue(bean)
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tb := engine.autoMapType(v)
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tb.Cacher = cacher
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}
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// NewDB provides an interface to operate database directly
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func (engine *Engine) NewDB() (*core.DB, error) {
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return core.OpenDialect(engine.dialect)
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}
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// DB return the wrapper of sql.DB
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func (engine *Engine) DB() *core.DB {
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return engine.db
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}
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// Dialect return database dialect
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func (engine *Engine) Dialect() core.Dialect {
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return engine.dialect
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}
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// NewSession New a session
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func (engine *Engine) NewSession() *Session {
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session := &Session{Engine: engine}
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session.Init()
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return session
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}
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// Close the engine
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func (engine *Engine) Close() error {
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return engine.db.Close()
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}
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// Ping tests if database is alive
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func (engine *Engine) Ping() error {
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session := engine.NewSession()
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defer session.Close()
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engine.logger.Infof("PING DATABASE %v", engine.DriverName())
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return session.Ping()
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}
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// logging sql
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func (engine *Engine) logSQL(sqlStr string, sqlArgs ...interface{}) {
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if engine.showSQL && !engine.showExecTime {
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if len(sqlArgs) > 0 {
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engine.logger.Infof("[sql] %v [args] %v", sqlStr, sqlArgs)
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} else {
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engine.logger.Infof("[sql] %v", sqlStr)
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}
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}
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}
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func (engine *Engine) logSQLQueryTime(sqlStr string, args []interface{}, executionBlock func() (*core.Stmt, *core.Rows, error)) (*core.Stmt, *core.Rows, error) {
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if engine.showSQL && engine.showExecTime {
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b4ExecTime := time.Now()
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stmt, res, err := executionBlock()
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execDuration := time.Since(b4ExecTime)
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if len(args) > 0 {
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engine.logger.Infof("[sql] %s [args] %v - took: %v", sqlStr, args, execDuration)
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} else {
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engine.logger.Infof("[sql] %s - took: %v", sqlStr, execDuration)
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}
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return stmt, res, err
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}
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return executionBlock()
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}
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func (engine *Engine) logSQLExecutionTime(sqlStr string, args []interface{}, executionBlock func() (sql.Result, error)) (sql.Result, error) {
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if engine.showSQL && engine.showExecTime {
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b4ExecTime := time.Now()
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res, err := executionBlock()
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execDuration := time.Since(b4ExecTime)
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if len(args) > 0 {
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engine.logger.Infof("[sql] %s [args] %v - took: %v", sqlStr, args, execDuration)
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} else {
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engine.logger.Infof("[sql] %s - took: %v", sqlStr, execDuration)
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}
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return res, err
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}
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return executionBlock()
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}
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// Sql provides raw sql input parameter. When you have a complex SQL statement
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// and cannot use Where, Id, In and etc. Methods to describe, you can use SQL.
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//
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// Deprecated: use SQL instead.
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func (engine *Engine) Sql(querystring string, args ...interface{}) *Session {
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return engine.SQL(querystring, args...)
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}
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// SQL method let's you manualy write raw SQL and operate
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// For example:
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//
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// engine.SQL("select * from user").Find(&users)
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//
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// This code will execute "select * from user" and set the records to users
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func (engine *Engine) SQL(query interface{}, args ...interface{}) *Session {
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session := engine.NewSession()
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session.IsAutoClose = true
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return session.SQL(query, args...)
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}
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// NoAutoTime Default if your struct has "created" or "updated" filed tag, the fields
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// will automatically be filled with current time when Insert or Update
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// invoked. Call NoAutoTime if you dont' want to fill automatically.
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func (engine *Engine) NoAutoTime() *Session {
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session := engine.NewSession()
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session.IsAutoClose = true
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return session.NoAutoTime()
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}
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// NoAutoCondition disable auto generate Where condition from bean or not
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func (engine *Engine) NoAutoCondition(no ...bool) *Session {
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session := engine.NewSession()
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session.IsAutoClose = true
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return session.NoAutoCondition(no...)
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}
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// DBMetas Retrieve all tables, columns, indexes' informations from database.
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func (engine *Engine) DBMetas() ([]*core.Table, error) {
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tables, err := engine.dialect.GetTables()
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if err != nil {
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return nil, err
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}
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for _, table := range tables {
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colSeq, cols, err := engine.dialect.GetColumns(table.Name)
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if err != nil {
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return nil, err
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}
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for _, name := range colSeq {
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table.AddColumn(cols[name])
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}
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//table.Columns = cols
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//table.ColumnsSeq = colSeq
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indexes, err := engine.dialect.GetIndexes(table.Name)
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if err != nil {
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return nil, err
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}
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table.Indexes = indexes
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for _, index := range indexes {
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for _, name := range index.Cols {
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if col := table.GetColumn(name); col != nil {
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col.Indexes[index.Name] = index.Type
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} else {
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return nil, fmt.Errorf("Unknown col %s in indexe %v of table %v, columns %v", name, index.Name, table.Name, table.ColumnsSeq())
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}
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}
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}
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}
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return tables, nil
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}
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// DumpAllToFile dump database all table structs and data to a file
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func (engine *Engine) DumpAllToFile(fp string) error {
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f, err := os.Create(fp)
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if err != nil {
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return err
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}
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defer f.Close()
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return engine.DumpAll(f)
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}
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// DumpAll dump database all table structs and data to w
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func (engine *Engine) DumpAll(w io.Writer) error {
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return engine.dumpAll(w, engine.dialect.DBType())
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}
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// DumpTablesToFile dump specified tables to SQL file.
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func (engine *Engine) DumpTablesToFile(tables []*core.Table, fp string, tp ...core.DbType) error {
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f, err := os.Create(fp)
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if err != nil {
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return err
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}
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defer f.Close()
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return engine.DumpTables(tables, f, tp...)
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}
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// DumpTables dump specify tables to io.Writer
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func (engine *Engine) DumpTables(tables []*core.Table, w io.Writer, tp ...core.DbType) error {
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return engine.dumpTables(tables, w, tp...)
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}
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func (engine *Engine) tableName(beanOrTableName interface{}) (string, error) {
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v := rValue(beanOrTableName)
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if v.Type().Kind() == reflect.String {
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return beanOrTableName.(string), nil
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} else if v.Type().Kind() == reflect.Struct {
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return engine.tbName(v), nil
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}
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return "", errors.New("bean should be a struct or struct's point")
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}
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func (engine *Engine) tbName(v reflect.Value) string {
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if tb, ok := v.Interface().(TableName); ok {
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return tb.TableName()
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}
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if v.Type().Kind() == reflect.Ptr {
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if tb, ok := reflect.Indirect(v).Interface().(TableName); ok {
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return tb.TableName()
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}
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} else if v.CanAddr() {
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if tb, ok := v.Addr().Interface().(TableName); ok {
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return tb.TableName()
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}
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}
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return engine.TableMapper.Obj2Table(reflect.Indirect(v).Type().Name())
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}
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// DumpAll dump database all table structs and data to w with specify db type
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func (engine *Engine) dumpAll(w io.Writer, tp ...core.DbType) error {
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tables, err := engine.DBMetas()
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if err != nil {
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return err
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}
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var dialect core.Dialect
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if len(tp) == 0 {
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dialect = engine.dialect
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} else {
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dialect = core.QueryDialect(tp[0])
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if dialect == nil {
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return errors.New("Unsupported database type")
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}
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dialect.Init(nil, engine.dialect.URI(), "", "")
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}
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_, err = io.WriteString(w, fmt.Sprintf("/*Generated by xorm v%s %s*/\n\n",
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Version, time.Now().In(engine.TZLocation).Format("2006-01-02 15:04:05")))
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if err != nil {
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return err
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}
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for i, table := range tables {
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if i > 0 {
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_, err = io.WriteString(w, "\n")
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if err != nil {
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return err
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}
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}
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_, err = io.WriteString(w, dialect.CreateTableSql(table, "", table.StoreEngine, "")+";\n")
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if err != nil {
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return err
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}
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for _, index := range table.Indexes {
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_, err = io.WriteString(w, dialect.CreateIndexSql(table.Name, index)+";\n")
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if err != nil {
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return err
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}
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}
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rows, err := engine.DB().Query("SELECT * FROM " + engine.Quote(table.Name))
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if err != nil {
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return err
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}
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defer rows.Close()
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cols, err := rows.Columns()
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if err != nil {
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return err
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}
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if len(cols) == 0 {
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continue
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}
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for rows.Next() {
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dest := make([]interface{}, len(cols))
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err = rows.ScanSlice(&dest)
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if err != nil {
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return err
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}
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_, err = io.WriteString(w, "INSERT INTO "+dialect.Quote(table.Name)+" ("+dialect.Quote(strings.Join(cols, dialect.Quote(", ")))+") VALUES (")
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if err != nil {
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return err
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}
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var temp string
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for i, d := range dest {
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col := table.GetColumn(cols[i])
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if d == nil {
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temp += ", NULL"
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} else if col.SQLType.IsText() || col.SQLType.IsTime() {
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var v = fmt.Sprintf("%s", d)
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temp += ", '" + strings.Replace(v, "'", "''", -1) + "'"
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} else if col.SQLType.IsBlob() {
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if reflect.TypeOf(d).Kind() == reflect.Slice {
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temp += fmt.Sprintf(", %s", dialect.FormatBytes(d.([]byte)))
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} else if reflect.TypeOf(d).Kind() == reflect.String {
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temp += fmt.Sprintf(", '%s'", d.(string))
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}
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} else if col.SQLType.IsNumeric() {
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switch reflect.TypeOf(d).Kind() {
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case reflect.Slice:
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temp += fmt.Sprintf(", %s", string(d.([]byte)))
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default:
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temp += fmt.Sprintf(", %v", d)
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}
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} else {
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s := fmt.Sprintf("%v", d)
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if strings.Contains(s, ":") || strings.Contains(s, "-") {
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temp += fmt.Sprintf(", '%s'", s)
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} else {
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temp += fmt.Sprintf(", %s", s)
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}
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}
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}
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_, err = io.WriteString(w, temp[2:]+");\n")
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if err != nil {
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return err
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}
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}
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}
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return nil
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}
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|
|
// DumpAll dump database all table structs and data to w with specify db type
|
|
func (engine *Engine) dumpTables(tables []*core.Table, w io.Writer, tp ...core.DbType) error {
|
|
var dialect core.Dialect
|
|
var distDBName string
|
|
if len(tp) == 0 {
|
|
dialect = engine.dialect
|
|
distDBName = string(engine.dialect.DBType())
|
|
} else {
|
|
dialect = core.QueryDialect(tp[0])
|
|
if dialect == nil {
|
|
return errors.New("Unsupported database type")
|
|
}
|
|
dialect.Init(nil, engine.dialect.URI(), "", "")
|
|
distDBName = string(tp[0])
|
|
}
|
|
|
|
_, err := io.WriteString(w, fmt.Sprintf("/*Generated by xorm v%s %s, from %s to %s*/\n\n",
|
|
Version, time.Now().In(engine.TZLocation).Format("2006-01-02 15:04:05"), engine.dialect.DBType(), strings.ToUpper(distDBName)))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for i, table := range tables {
|
|
if i > 0 {
|
|
_, err = io.WriteString(w, "\n")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
_, err = io.WriteString(w, dialect.CreateTableSql(table, "", table.StoreEngine, "")+";\n")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, index := range table.Indexes {
|
|
_, err = io.WriteString(w, dialect.CreateIndexSql(table.Name, index)+";\n")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
rows, err := engine.DB().Query("SELECT * FROM " + engine.Quote(table.Name))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer rows.Close()
|
|
|
|
cols, err := rows.Columns()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if len(cols) == 0 {
|
|
continue
|
|
}
|
|
for rows.Next() {
|
|
dest := make([]interface{}, len(cols))
|
|
err = rows.ScanSlice(&dest)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
_, err = io.WriteString(w, "INSERT INTO "+dialect.Quote(table.Name)+" ("+dialect.Quote(strings.Join(cols, dialect.Quote(", ")))+") VALUES (")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
var temp string
|
|
for i, d := range dest {
|
|
col := table.GetColumn(cols[i])
|
|
if d == nil {
|
|
temp += ", NULL"
|
|
} else if col.SQLType.IsText() || col.SQLType.IsTime() {
|
|
var v = fmt.Sprintf("%s", d)
|
|
if strings.HasSuffix(v, " +0000 UTC") {
|
|
temp += fmt.Sprintf(", '%s'", v[0:len(v)-len(" +0000 UTC")])
|
|
} else {
|
|
temp += ", '" + strings.Replace(v, "'", "''", -1) + "'"
|
|
}
|
|
} else if col.SQLType.IsBlob() {
|
|
if reflect.TypeOf(d).Kind() == reflect.Slice {
|
|
temp += fmt.Sprintf(", %s", dialect.FormatBytes(d.([]byte)))
|
|
} else if reflect.TypeOf(d).Kind() == reflect.String {
|
|
temp += fmt.Sprintf(", '%s'", d.(string))
|
|
}
|
|
} else if col.SQLType.IsNumeric() {
|
|
switch reflect.TypeOf(d).Kind() {
|
|
case reflect.Slice:
|
|
temp += fmt.Sprintf(", %s", string(d.([]byte)))
|
|
default:
|
|
temp += fmt.Sprintf(", %v", d)
|
|
}
|
|
} else {
|
|
s := fmt.Sprintf("%v", d)
|
|
if strings.Contains(s, ":") || strings.Contains(s, "-") {
|
|
if strings.HasSuffix(s, " +0000 UTC") {
|
|
temp += fmt.Sprintf(", '%s'", s[0:len(s)-len(" +0000 UTC")])
|
|
} else {
|
|
temp += fmt.Sprintf(", '%s'", s)
|
|
}
|
|
} else {
|
|
temp += fmt.Sprintf(", %s", s)
|
|
}
|
|
}
|
|
}
|
|
_, err = io.WriteString(w, temp[2:]+");\n")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Cascade use cascade or not
|
|
func (engine *Engine) Cascade(trueOrFalse ...bool) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Cascade(trueOrFalse...)
|
|
}
|
|
|
|
// Where method provide a condition query
|
|
func (engine *Engine) Where(query interface{}, args ...interface{}) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Where(query, args...)
|
|
}
|
|
|
|
// Id will be depracated, please use ID instead
|
|
func (engine *Engine) Id(id interface{}) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Id(id)
|
|
}
|
|
|
|
// ID mehtod provoide a condition as (id) = ?
|
|
func (engine *Engine) ID(id interface{}) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.ID(id)
|
|
}
|
|
|
|
// Before apply before Processor, affected bean is passed to closure arg
|
|
func (engine *Engine) Before(closures func(interface{})) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Before(closures)
|
|
}
|
|
|
|
// After apply after insert Processor, affected bean is passed to closure arg
|
|
func (engine *Engine) After(closures func(interface{})) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.After(closures)
|
|
}
|
|
|
|
// Charset set charset when create table, only support mysql now
|
|
func (engine *Engine) Charset(charset string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Charset(charset)
|
|
}
|
|
|
|
// StoreEngine set store engine when create table, only support mysql now
|
|
func (engine *Engine) StoreEngine(storeEngine string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.StoreEngine(storeEngine)
|
|
}
|
|
|
|
// Distinct use for distinct columns. Caution: when you are using cache,
|
|
// distinct will not be cached because cache system need id,
|
|
// but distinct will not provide id
|
|
func (engine *Engine) Distinct(columns ...string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Distinct(columns...)
|
|
}
|
|
|
|
// Select customerize your select columns or contents
|
|
func (engine *Engine) Select(str string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Select(str)
|
|
}
|
|
|
|
// Cols only use the paramters as select or update columns
|
|
func (engine *Engine) Cols(columns ...string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Cols(columns...)
|
|
}
|
|
|
|
// AllCols indicates that all columns should be use
|
|
func (engine *Engine) AllCols() *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.AllCols()
|
|
}
|
|
|
|
// MustCols specify some columns must use even if they are empty
|
|
func (engine *Engine) MustCols(columns ...string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.MustCols(columns...)
|
|
}
|
|
|
|
// UseBool xorm automatically retrieve condition according struct, but
|
|
// if struct has bool field, it will ignore them. So use UseBool
|
|
// to tell system to do not ignore them.
|
|
// If no paramters, it will use all the bool field of struct, or
|
|
// it will use paramters's columns
|
|
func (engine *Engine) UseBool(columns ...string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.UseBool(columns...)
|
|
}
|
|
|
|
// Omit only not use the paramters as select or update columns
|
|
func (engine *Engine) Omit(columns ...string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Omit(columns...)
|
|
}
|
|
|
|
// Nullable set null when column is zero-value and nullable for update
|
|
func (engine *Engine) Nullable(columns ...string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Nullable(columns...)
|
|
}
|
|
|
|
// In will generate "column IN (?, ?)"
|
|
func (engine *Engine) In(column string, args ...interface{}) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.In(column, args...)
|
|
}
|
|
|
|
// Incr provides a update string like "column = column + ?"
|
|
func (engine *Engine) Incr(column string, arg ...interface{}) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Incr(column, arg...)
|
|
}
|
|
|
|
// Decr provides a update string like "column = column - ?"
|
|
func (engine *Engine) Decr(column string, arg ...interface{}) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Decr(column, arg...)
|
|
}
|
|
|
|
// SetExpr provides a update string like "column = {expression}"
|
|
func (engine *Engine) SetExpr(column string, expression string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.SetExpr(column, expression)
|
|
}
|
|
|
|
// Table temporarily change the Get, Find, Update's table
|
|
func (engine *Engine) Table(tableNameOrBean interface{}) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Table(tableNameOrBean)
|
|
}
|
|
|
|
// Alias set the table alias
|
|
func (engine *Engine) Alias(alias string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Alias(alias)
|
|
}
|
|
|
|
// Limit will generate "LIMIT start, limit"
|
|
func (engine *Engine) Limit(limit int, start ...int) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Limit(limit, start...)
|
|
}
|
|
|
|
// Desc will generate "ORDER BY column1 DESC, column2 DESC"
|
|
func (engine *Engine) Desc(colNames ...string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Desc(colNames...)
|
|
}
|
|
|
|
// Asc will generate "ORDER BY column1,column2 Asc"
|
|
// This method can chainable use.
|
|
//
|
|
// engine.Desc("name").Asc("age").Find(&users)
|
|
// // SELECT * FROM user ORDER BY name DESC, age ASC
|
|
//
|
|
func (engine *Engine) Asc(colNames ...string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Asc(colNames...)
|
|
}
|
|
|
|
// OrderBy will generate "ORDER BY order"
|
|
func (engine *Engine) OrderBy(order string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.OrderBy(order)
|
|
}
|
|
|
|
// Join the join_operator should be one of INNER, LEFT OUTER, CROSS etc - this will be prepended to JOIN
|
|
func (engine *Engine) Join(joinOperator string, tablename interface{}, condition string, args ...interface{}) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Join(joinOperator, tablename, condition, args...)
|
|
}
|
|
|
|
// GroupBy generate group by statement
|
|
func (engine *Engine) GroupBy(keys string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.GroupBy(keys)
|
|
}
|
|
|
|
// Having generate having statement
|
|
func (engine *Engine) Having(conditions string) *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Having(conditions)
|
|
}
|
|
|
|
func (engine *Engine) autoMapType(v reflect.Value) *core.Table {
|
|
t := v.Type()
|
|
engine.mutex.Lock()
|
|
defer engine.mutex.Unlock()
|
|
table, ok := engine.Tables[t]
|
|
if !ok {
|
|
table = engine.mapType(v)
|
|
engine.Tables[t] = table
|
|
if engine.Cacher != nil {
|
|
if v.CanAddr() {
|
|
engine.GobRegister(v.Addr().Interface())
|
|
} else {
|
|
engine.GobRegister(v.Interface())
|
|
}
|
|
}
|
|
}
|
|
return table
|
|
}
|
|
|
|
// GobRegister register one struct to gob for cache use
|
|
func (engine *Engine) GobRegister(v interface{}) *Engine {
|
|
//fmt.Printf("Type: %[1]T => Data: %[1]#v\n", v)
|
|
gob.Register(v)
|
|
return engine
|
|
}
|
|
|
|
// Table table struct
|
|
type Table struct {
|
|
*core.Table
|
|
Name string
|
|
}
|
|
|
|
// TableInfo get table info according to bean's content
|
|
func (engine *Engine) TableInfo(bean interface{}) *Table {
|
|
v := rValue(bean)
|
|
return &Table{engine.autoMapType(v), engine.tbName(v)}
|
|
}
|
|
|
|
func addIndex(indexName string, table *core.Table, col *core.Column, indexType int) {
|
|
if index, ok := table.Indexes[indexName]; ok {
|
|
index.AddColumn(col.Name)
|
|
col.Indexes[index.Name] = indexType
|
|
} else {
|
|
index := core.NewIndex(indexName, indexType)
|
|
index.AddColumn(col.Name)
|
|
table.AddIndex(index)
|
|
col.Indexes[index.Name] = indexType
|
|
}
|
|
}
|
|
|
|
func (engine *Engine) newTable() *core.Table {
|
|
table := core.NewEmptyTable()
|
|
|
|
if !engine.disableGlobalCache {
|
|
table.Cacher = engine.Cacher
|
|
}
|
|
return table
|
|
}
|
|
|
|
// TableName table name interface to define customerize table name
|
|
type TableName interface {
|
|
TableName() string
|
|
}
|
|
|
|
var (
|
|
tpTableName = reflect.TypeOf((*TableName)(nil)).Elem()
|
|
)
|
|
|
|
func (engine *Engine) mapType(v reflect.Value) *core.Table {
|
|
t := v.Type()
|
|
table := engine.newTable()
|
|
if tb, ok := v.Interface().(TableName); ok {
|
|
table.Name = tb.TableName()
|
|
} else {
|
|
if v.CanAddr() {
|
|
if tb, ok = v.Addr().Interface().(TableName); ok {
|
|
table.Name = tb.TableName()
|
|
}
|
|
}
|
|
if table.Name == "" {
|
|
table.Name = engine.TableMapper.Obj2Table(t.Name())
|
|
}
|
|
}
|
|
|
|
table.Type = t
|
|
|
|
var idFieldColName string
|
|
var err error
|
|
var hasCacheTag, hasNoCacheTag bool
|
|
|
|
for i := 0; i < t.NumField(); i++ {
|
|
tag := t.Field(i).Tag
|
|
|
|
ormTagStr := tag.Get(engine.TagIdentifier)
|
|
var col *core.Column
|
|
fieldValue := v.Field(i)
|
|
fieldType := fieldValue.Type()
|
|
|
|
if ormTagStr != "" {
|
|
col = &core.Column{FieldName: t.Field(i).Name, Nullable: true, IsPrimaryKey: false,
|
|
IsAutoIncrement: false, MapType: core.TWOSIDES, Indexes: make(map[string]int)}
|
|
tags := splitTag(ormTagStr)
|
|
|
|
if len(tags) > 0 {
|
|
if tags[0] == "-" {
|
|
continue
|
|
}
|
|
if strings.ToUpper(tags[0]) == "EXTENDS" {
|
|
switch fieldValue.Kind() {
|
|
case reflect.Ptr:
|
|
f := fieldValue.Type().Elem()
|
|
if f.Kind() == reflect.Struct {
|
|
fieldPtr := fieldValue
|
|
fieldValue = fieldValue.Elem()
|
|
if !fieldValue.IsValid() || fieldPtr.IsNil() {
|
|
fieldValue = reflect.New(f).Elem()
|
|
}
|
|
}
|
|
fallthrough
|
|
case reflect.Struct:
|
|
parentTable := engine.mapType(fieldValue)
|
|
for _, col := range parentTable.Columns() {
|
|
col.FieldName = fmt.Sprintf("%v.%v", t.Field(i).Name, col.FieldName)
|
|
table.AddColumn(col)
|
|
for indexName, indexType := range col.Indexes {
|
|
addIndex(indexName, table, col, indexType)
|
|
}
|
|
}
|
|
continue
|
|
default:
|
|
//TODO: warning
|
|
}
|
|
}
|
|
|
|
indexNames := make(map[string]int)
|
|
var isIndex, isUnique bool
|
|
var preKey string
|
|
for j, key := range tags {
|
|
k := strings.ToUpper(key)
|
|
switch {
|
|
case k == "<-":
|
|
col.MapType = core.ONLYFROMDB
|
|
case k == "->":
|
|
col.MapType = core.ONLYTODB
|
|
case k == "PK":
|
|
col.IsPrimaryKey = true
|
|
col.Nullable = false
|
|
case k == "NULL":
|
|
if j == 0 {
|
|
col.Nullable = true
|
|
} else {
|
|
col.Nullable = (strings.ToUpper(tags[j-1]) != "NOT")
|
|
}
|
|
// TODO: for postgres how add autoincr?
|
|
/*case strings.HasPrefix(k, "AUTOINCR(") && strings.HasSuffix(k, ")"):
|
|
col.IsAutoIncrement = true
|
|
|
|
autoStart := k[len("AUTOINCR")+1 : len(k)-1]
|
|
autoStartInt, err := strconv.Atoi(autoStart)
|
|
if err != nil {
|
|
engine.LogError(err)
|
|
}
|
|
col.AutoIncrStart = autoStartInt*/
|
|
case k == "AUTOINCR":
|
|
col.IsAutoIncrement = true
|
|
//col.AutoIncrStart = 1
|
|
case k == "DEFAULT":
|
|
col.Default = tags[j+1]
|
|
case k == "CREATED":
|
|
col.IsCreated = true
|
|
case k == "VERSION":
|
|
col.IsVersion = true
|
|
col.Default = "1"
|
|
case k == "UTC":
|
|
col.TimeZone = time.UTC
|
|
case k == "LOCAL":
|
|
col.TimeZone = time.Local
|
|
case strings.HasPrefix(k, "LOCALE(") && strings.HasSuffix(k, ")"):
|
|
location := k[len("LOCALE")+1 : len(k)-1]
|
|
col.TimeZone, err = time.LoadLocation(location)
|
|
if err != nil {
|
|
engine.logger.Error(err)
|
|
}
|
|
case k == "UPDATED":
|
|
col.IsUpdated = true
|
|
case k == "DELETED":
|
|
col.IsDeleted = true
|
|
case strings.HasPrefix(k, "INDEX(") && strings.HasSuffix(k, ")"):
|
|
indexName := k[len("INDEX")+1 : len(k)-1]
|
|
indexNames[indexName] = core.IndexType
|
|
case k == "INDEX":
|
|
isIndex = true
|
|
case strings.HasPrefix(k, "UNIQUE(") && strings.HasSuffix(k, ")"):
|
|
indexName := k[len("UNIQUE")+1 : len(k)-1]
|
|
indexNames[indexName] = core.UniqueType
|
|
case k == "UNIQUE":
|
|
isUnique = true
|
|
case k == "NOTNULL":
|
|
col.Nullable = false
|
|
case k == "CACHE":
|
|
if !hasCacheTag {
|
|
hasCacheTag = true
|
|
}
|
|
case k == "NOCACHE":
|
|
if !hasNoCacheTag {
|
|
hasNoCacheTag = true
|
|
}
|
|
case k == "NOT":
|
|
default:
|
|
if strings.HasPrefix(k, "'") && strings.HasSuffix(k, "'") {
|
|
if preKey != "DEFAULT" {
|
|
col.Name = key[1 : len(key)-1]
|
|
}
|
|
} else if strings.Contains(k, "(") && strings.HasSuffix(k, ")") {
|
|
fs := strings.Split(k, "(")
|
|
|
|
if _, ok := core.SqlTypes[fs[0]]; !ok {
|
|
preKey = k
|
|
continue
|
|
}
|
|
col.SQLType = core.SQLType{Name: fs[0]}
|
|
if fs[0] == core.Enum && fs[1][0] == '\'' { //enum
|
|
options := strings.Split(fs[1][0:len(fs[1])-1], ",")
|
|
col.EnumOptions = make(map[string]int)
|
|
for k, v := range options {
|
|
v = strings.TrimSpace(v)
|
|
v = strings.Trim(v, "'")
|
|
col.EnumOptions[v] = k
|
|
}
|
|
} else if fs[0] == core.Set && fs[1][0] == '\'' { //set
|
|
options := strings.Split(fs[1][0:len(fs[1])-1], ",")
|
|
col.SetOptions = make(map[string]int)
|
|
for k, v := range options {
|
|
v = strings.TrimSpace(v)
|
|
v = strings.Trim(v, "'")
|
|
col.SetOptions[v] = k
|
|
}
|
|
} else {
|
|
fs2 := strings.Split(fs[1][0:len(fs[1])-1], ",")
|
|
if len(fs2) == 2 {
|
|
col.Length, err = strconv.Atoi(fs2[0])
|
|
if err != nil {
|
|
engine.logger.Error(err)
|
|
}
|
|
col.Length2, err = strconv.Atoi(fs2[1])
|
|
if err != nil {
|
|
engine.logger.Error(err)
|
|
}
|
|
} else if len(fs2) == 1 {
|
|
col.Length, err = strconv.Atoi(fs2[0])
|
|
if err != nil {
|
|
engine.logger.Error(err)
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if _, ok := core.SqlTypes[k]; ok {
|
|
col.SQLType = core.SQLType{Name: k}
|
|
} else if key != col.Default {
|
|
col.Name = key
|
|
}
|
|
}
|
|
engine.dialect.SqlType(col)
|
|
}
|
|
preKey = k
|
|
}
|
|
if col.SQLType.Name == "" {
|
|
col.SQLType = core.Type2SQLType(fieldType)
|
|
}
|
|
if col.Length == 0 {
|
|
col.Length = col.SQLType.DefaultLength
|
|
}
|
|
if col.Length2 == 0 {
|
|
col.Length2 = col.SQLType.DefaultLength2
|
|
}
|
|
|
|
if col.Name == "" {
|
|
col.Name = engine.ColumnMapper.Obj2Table(t.Field(i).Name)
|
|
}
|
|
|
|
if isUnique {
|
|
indexNames[col.Name] = core.UniqueType
|
|
} else if isIndex {
|
|
indexNames[col.Name] = core.IndexType
|
|
}
|
|
|
|
for indexName, indexType := range indexNames {
|
|
addIndex(indexName, table, col, indexType)
|
|
}
|
|
}
|
|
} else {
|
|
var sqlType core.SQLType
|
|
if fieldValue.CanAddr() {
|
|
if _, ok := fieldValue.Addr().Interface().(core.Conversion); ok {
|
|
sqlType = core.SQLType{Name: core.Text}
|
|
}
|
|
}
|
|
if _, ok := fieldValue.Interface().(core.Conversion); ok {
|
|
sqlType = core.SQLType{Name: core.Text}
|
|
} else {
|
|
sqlType = core.Type2SQLType(fieldType)
|
|
}
|
|
col = core.NewColumn(engine.ColumnMapper.Obj2Table(t.Field(i).Name),
|
|
t.Field(i).Name, sqlType, sqlType.DefaultLength,
|
|
sqlType.DefaultLength2, true)
|
|
}
|
|
if col.IsAutoIncrement {
|
|
col.Nullable = false
|
|
}
|
|
|
|
table.AddColumn(col)
|
|
|
|
if fieldType.Kind() == reflect.Int64 && (strings.ToUpper(col.FieldName) == "ID" || strings.HasSuffix(strings.ToUpper(col.FieldName), ".ID")) {
|
|
idFieldColName = col.Name
|
|
}
|
|
} // end for
|
|
|
|
if idFieldColName != "" && len(table.PrimaryKeys) == 0 {
|
|
col := table.GetColumn(idFieldColName)
|
|
col.IsPrimaryKey = true
|
|
col.IsAutoIncrement = true
|
|
col.Nullable = false
|
|
table.PrimaryKeys = append(table.PrimaryKeys, col.Name)
|
|
table.AutoIncrement = col.Name
|
|
}
|
|
|
|
if hasCacheTag {
|
|
if engine.Cacher != nil { // !nash! use engine's cacher if provided
|
|
engine.logger.Info("enable cache on table:", table.Name)
|
|
table.Cacher = engine.Cacher
|
|
} else {
|
|
engine.logger.Info("enable LRU cache on table:", table.Name)
|
|
table.Cacher = NewLRUCacher2(NewMemoryStore(), time.Hour, 10000) // !nashtsai! HACK use LRU cacher for now
|
|
}
|
|
}
|
|
if hasNoCacheTag {
|
|
engine.logger.Info("no cache on table:", table.Name)
|
|
table.Cacher = nil
|
|
}
|
|
|
|
return table
|
|
}
|
|
|
|
// IsTableEmpty if a table has any reocrd
|
|
func (engine *Engine) IsTableEmpty(bean interface{}) (bool, error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.IsTableEmpty(bean)
|
|
}
|
|
|
|
// IsTableExist if a table is exist
|
|
func (engine *Engine) IsTableExist(beanOrTableName interface{}) (bool, error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.IsTableExist(beanOrTableName)
|
|
}
|
|
|
|
// IdOf get id from one struct
|
|
//
|
|
// Deprecated: use IDOf instead.
|
|
func (engine *Engine) IdOf(bean interface{}) core.PK {
|
|
return engine.IDOf(bean)
|
|
}
|
|
|
|
// IDOf get id from one struct
|
|
func (engine *Engine) IDOf(bean interface{}) core.PK {
|
|
return engine.IdOfV(reflect.ValueOf(bean))
|
|
}
|
|
|
|
// IdOfV get id from one value of struct
|
|
//
|
|
// Deprecated: use IDOfV instead.
|
|
func (engine *Engine) IdOfV(rv reflect.Value) core.PK {
|
|
return engine.IDOfV(rv)
|
|
}
|
|
|
|
// IDOfV get id from one value of struct
|
|
func (engine *Engine) IDOfV(rv reflect.Value) core.PK {
|
|
v := reflect.Indirect(rv)
|
|
table := engine.autoMapType(v)
|
|
pk := make([]interface{}, len(table.PrimaryKeys))
|
|
for i, col := range table.PKColumns() {
|
|
pkField := v.FieldByName(col.FieldName)
|
|
switch pkField.Kind() {
|
|
case reflect.String:
|
|
pk[i] = pkField.String()
|
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
|
pk[i] = pkField.Int()
|
|
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
|
pk[i] = pkField.Uint()
|
|
}
|
|
}
|
|
return core.PK(pk)
|
|
}
|
|
|
|
// CreateIndexes create indexes
|
|
func (engine *Engine) CreateIndexes(bean interface{}) error {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.CreateIndexes(bean)
|
|
}
|
|
|
|
// CreateUniques create uniques
|
|
func (engine *Engine) CreateUniques(bean interface{}) error {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.CreateUniques(bean)
|
|
}
|
|
|
|
func (engine *Engine) getCacher2(table *core.Table) core.Cacher {
|
|
return table.Cacher
|
|
}
|
|
|
|
func (engine *Engine) getCacher(v reflect.Value) core.Cacher {
|
|
if table := engine.autoMapType(v); table != nil {
|
|
return table.Cacher
|
|
}
|
|
return engine.Cacher
|
|
}
|
|
|
|
// ClearCacheBean if enabled cache, clear the cache bean
|
|
func (engine *Engine) ClearCacheBean(bean interface{}, id string) error {
|
|
v := rValue(bean)
|
|
t := v.Type()
|
|
if t.Kind() != reflect.Struct {
|
|
return errors.New("error params")
|
|
}
|
|
tableName := engine.tbName(v)
|
|
table := engine.autoMapType(v)
|
|
cacher := table.Cacher
|
|
if cacher == nil {
|
|
cacher = engine.Cacher
|
|
}
|
|
if cacher != nil {
|
|
cacher.ClearIds(tableName)
|
|
cacher.DelBean(tableName, id)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// ClearCache if enabled cache, clear some tables' cache
|
|
func (engine *Engine) ClearCache(beans ...interface{}) error {
|
|
for _, bean := range beans {
|
|
v := rValue(bean)
|
|
t := v.Type()
|
|
if t.Kind() != reflect.Struct {
|
|
return errors.New("error params")
|
|
}
|
|
tableName := engine.tbName(v)
|
|
table := engine.autoMapType(v)
|
|
cacher := table.Cacher
|
|
if cacher == nil {
|
|
cacher = engine.Cacher
|
|
}
|
|
if cacher != nil {
|
|
cacher.ClearIds(tableName)
|
|
cacher.ClearBeans(tableName)
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Sync the new struct changes to database, this method will automatically add
|
|
// table, column, index, unique. but will not delete or change anything.
|
|
// If you change some field, you should change the database manually.
|
|
func (engine *Engine) Sync(beans ...interface{}) error {
|
|
for _, bean := range beans {
|
|
v := rValue(bean)
|
|
tableName := engine.tbName(v)
|
|
table := engine.autoMapType(v)
|
|
|
|
s := engine.NewSession()
|
|
defer s.Close()
|
|
isExist, err := s.Table(bean).isTableExist(tableName)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !isExist {
|
|
err = engine.CreateTables(bean)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
/*isEmpty, err := engine.IsEmptyTable(bean)
|
|
if err != nil {
|
|
return err
|
|
}*/
|
|
var isEmpty bool
|
|
if isEmpty {
|
|
err = engine.DropTables(bean)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = engine.CreateTables(bean)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
} else {
|
|
for _, col := range table.Columns() {
|
|
isExist, err := engine.dialect.IsColumnExist(tableName, col.Name)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !isExist {
|
|
session := engine.NewSession()
|
|
session.Statement.setRefValue(v)
|
|
defer session.Close()
|
|
err = session.addColumn(col.Name)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
|
|
for name, index := range table.Indexes {
|
|
session := engine.NewSession()
|
|
session.Statement.setRefValue(v)
|
|
defer session.Close()
|
|
if index.Type == core.UniqueType {
|
|
//isExist, err := session.isIndexExist(table.Name, name, true)
|
|
isExist, err := session.isIndexExist2(tableName, index.Cols, true)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !isExist {
|
|
session := engine.NewSession()
|
|
session.Statement.setRefValue(v)
|
|
defer session.Close()
|
|
err = session.addUnique(tableName, name)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
} else if index.Type == core.IndexType {
|
|
isExist, err := session.isIndexExist2(tableName, index.Cols, false)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !isExist {
|
|
session := engine.NewSession()
|
|
session.Statement.setRefValue(v)
|
|
defer session.Close()
|
|
err = session.addIndex(tableName, name)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
} else {
|
|
return errors.New("unknow index type")
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Sync2 synchronize structs to database tables
|
|
func (engine *Engine) Sync2(beans ...interface{}) error {
|
|
s := engine.NewSession()
|
|
defer s.Close()
|
|
return s.Sync2(beans...)
|
|
}
|
|
|
|
func (engine *Engine) unMap(beans ...interface{}) (e error) {
|
|
engine.mutex.Lock()
|
|
defer engine.mutex.Unlock()
|
|
for _, bean := range beans {
|
|
t := rType(bean)
|
|
if _, ok := engine.Tables[t]; ok {
|
|
delete(engine.Tables, t)
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
// Drop all mapped table
|
|
func (engine *Engine) dropAll() error {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
|
|
err := session.Begin()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = session.dropAll()
|
|
if err != nil {
|
|
session.Rollback()
|
|
return err
|
|
}
|
|
return session.Commit()
|
|
}
|
|
|
|
// CreateTables create tabls according bean
|
|
func (engine *Engine) CreateTables(beans ...interface{}) error {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
|
|
err := session.Begin()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, bean := range beans {
|
|
err = session.CreateTable(bean)
|
|
if err != nil {
|
|
session.Rollback()
|
|
return err
|
|
}
|
|
}
|
|
return session.Commit()
|
|
}
|
|
|
|
// DropTables drop specify tables
|
|
func (engine *Engine) DropTables(beans ...interface{}) error {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
|
|
err := session.Begin()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, bean := range beans {
|
|
err = session.DropTable(bean)
|
|
if err != nil {
|
|
session.Rollback()
|
|
return err
|
|
}
|
|
}
|
|
return session.Commit()
|
|
}
|
|
|
|
func (engine *Engine) createAll() error {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.createAll()
|
|
}
|
|
|
|
// Exec raw sql
|
|
func (engine *Engine) Exec(sql string, args ...interface{}) (sql.Result, error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.Exec(sql, args...)
|
|
}
|
|
|
|
// Query a raw sql and return records as []map[string][]byte
|
|
func (engine *Engine) Query(sql string, paramStr ...interface{}) (resultsSlice []map[string][]byte, err error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.Query(sql, paramStr...)
|
|
}
|
|
|
|
// Insert one or more records
|
|
func (engine *Engine) Insert(beans ...interface{}) (int64, error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.Insert(beans...)
|
|
}
|
|
|
|
// InsertOne insert only one record
|
|
func (engine *Engine) InsertOne(bean interface{}) (int64, error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.InsertOne(bean)
|
|
}
|
|
|
|
// Update records, bean's non-empty fields are updated contents,
|
|
// condiBean' non-empty filds are conditions
|
|
// CAUTION:
|
|
// 1.bool will defaultly be updated content nor conditions
|
|
// You should call UseBool if you have bool to use.
|
|
// 2.float32 & float64 may be not inexact as conditions
|
|
func (engine *Engine) Update(bean interface{}, condiBeans ...interface{}) (int64, error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.Update(bean, condiBeans...)
|
|
}
|
|
|
|
// Delete records, bean's non-empty fields are conditions
|
|
func (engine *Engine) Delete(bean interface{}) (int64, error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.Delete(bean)
|
|
}
|
|
|
|
// Get retrieve one record from table, bean's non-empty fields
|
|
// are conditions
|
|
func (engine *Engine) Get(bean interface{}) (bool, error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.Get(bean)
|
|
}
|
|
|
|
// Find retrieve records from table, condiBeans's non-empty fields
|
|
// are conditions. beans could be []Struct, []*Struct, map[int64]Struct
|
|
// map[int64]*Struct
|
|
func (engine *Engine) Find(beans interface{}, condiBeans ...interface{}) error {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.Find(beans, condiBeans...)
|
|
}
|
|
|
|
// Iterate record by record handle records from table, bean's non-empty fields
|
|
// are conditions.
|
|
func (engine *Engine) Iterate(bean interface{}, fun IterFunc) error {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.Iterate(bean, fun)
|
|
}
|
|
|
|
// Rows return sql.Rows compatible Rows obj, as a forward Iterator object for iterating record by record, bean's non-empty fields
|
|
// are conditions.
|
|
func (engine *Engine) Rows(bean interface{}) (*Rows, error) {
|
|
session := engine.NewSession()
|
|
return session.Rows(bean)
|
|
}
|
|
|
|
// Count counts the records. bean's non-empty fields are conditions.
|
|
func (engine *Engine) Count(bean interface{}) (int64, error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.Count(bean)
|
|
}
|
|
|
|
// Sum sum the records by some column. bean's non-empty fields are conditions.
|
|
func (engine *Engine) Sum(bean interface{}, colName string) (float64, error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.Sum(bean, colName)
|
|
}
|
|
|
|
// Sums sum the records by some columns. bean's non-empty fields are conditions.
|
|
func (engine *Engine) Sums(bean interface{}, colNames ...string) ([]float64, error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.Sums(bean, colNames...)
|
|
}
|
|
|
|
// SumsInt like Sums but return slice of int64 instead of float64.
|
|
func (engine *Engine) SumsInt(bean interface{}, colNames ...string) ([]int64, error) {
|
|
session := engine.NewSession()
|
|
defer session.Close()
|
|
return session.SumsInt(bean, colNames...)
|
|
}
|
|
|
|
// ImportFile SQL DDL file
|
|
func (engine *Engine) ImportFile(ddlPath string) ([]sql.Result, error) {
|
|
file, err := os.Open(ddlPath)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer file.Close()
|
|
return engine.Import(file)
|
|
}
|
|
|
|
// Import SQL DDL from io.Reader
|
|
func (engine *Engine) Import(r io.Reader) ([]sql.Result, error) {
|
|
var results []sql.Result
|
|
var lastError error
|
|
scanner := bufio.NewScanner(r)
|
|
|
|
semiColSpliter := func(data []byte, atEOF bool) (advance int, token []byte, err error) {
|
|
if atEOF && len(data) == 0 {
|
|
return 0, nil, nil
|
|
}
|
|
if i := bytes.IndexByte(data, ';'); i >= 0 {
|
|
return i + 1, data[0:i], nil
|
|
}
|
|
// If we're at EOF, we have a final, non-terminated line. Return it.
|
|
if atEOF {
|
|
return len(data), data, nil
|
|
}
|
|
// Request more data.
|
|
return 0, nil, nil
|
|
}
|
|
|
|
scanner.Split(semiColSpliter)
|
|
|
|
for scanner.Scan() {
|
|
query := strings.Trim(scanner.Text(), " \t\n\r")
|
|
if len(query) > 0 {
|
|
engine.logSQL(query)
|
|
result, err := engine.DB().Exec(query)
|
|
results = append(results, result)
|
|
if err != nil {
|
|
return nil, err
|
|
//lastError = err
|
|
}
|
|
}
|
|
}
|
|
|
|
return results, lastError
|
|
}
|
|
|
|
// TZTime change one time to xorm time location
|
|
func (engine *Engine) TZTime(t time.Time) time.Time {
|
|
if !t.IsZero() { // if time is not initialized it's not suitable for Time.In()
|
|
return t.In(engine.TZLocation)
|
|
}
|
|
return t
|
|
}
|
|
|
|
// NowTime return current time
|
|
func (engine *Engine) NowTime(sqlTypeName string) interface{} {
|
|
t := time.Now()
|
|
return engine.FormatTime(sqlTypeName, t)
|
|
}
|
|
|
|
// NowTime2 return current time
|
|
func (engine *Engine) NowTime2(sqlTypeName string) (interface{}, time.Time) {
|
|
t := time.Now()
|
|
return engine.FormatTime(sqlTypeName, t), t
|
|
}
|
|
|
|
// FormatTime format time
|
|
func (engine *Engine) FormatTime(sqlTypeName string, t time.Time) (v interface{}) {
|
|
return engine.formatTime(engine.TZLocation, sqlTypeName, t)
|
|
}
|
|
|
|
func (engine *Engine) formatColTime(col *core.Column, t time.Time) (v interface{}) {
|
|
if col.DisableTimeZone {
|
|
return engine.formatTime(nil, col.SQLType.Name, t)
|
|
} else if col.TimeZone != nil {
|
|
return engine.formatTime(col.TimeZone, col.SQLType.Name, t)
|
|
}
|
|
return engine.formatTime(engine.TZLocation, col.SQLType.Name, t)
|
|
}
|
|
|
|
func (engine *Engine) formatTime(tz *time.Location, sqlTypeName string, t time.Time) (v interface{}) {
|
|
if engine.dialect.DBType() == core.ORACLE {
|
|
return t
|
|
}
|
|
if tz != nil {
|
|
t = engine.TZTime(t)
|
|
}
|
|
switch sqlTypeName {
|
|
case core.Time:
|
|
s := t.Format("2006-01-02 15:04:05") //time.RFC3339
|
|
v = s[11:19]
|
|
case core.Date:
|
|
v = t.Format("2006-01-02")
|
|
case core.DateTime, core.TimeStamp:
|
|
if engine.dialect.DBType() == "ql" {
|
|
v = t
|
|
} else if engine.dialect.DBType() == "sqlite3" {
|
|
v = t.UTC().Format("2006-01-02 15:04:05")
|
|
} else {
|
|
v = t.Format("2006-01-02 15:04:05")
|
|
}
|
|
case core.TimeStampz:
|
|
if engine.dialect.DBType() == core.MSSQL {
|
|
v = t.Format("2006-01-02T15:04:05.9999999Z07:00")
|
|
} else if engine.DriverName() == "mssql" {
|
|
v = t
|
|
} else {
|
|
v = t.Format(time.RFC3339Nano)
|
|
}
|
|
case core.BigInt, core.Int:
|
|
v = t.Unix()
|
|
default:
|
|
v = t
|
|
}
|
|
return
|
|
}
|
|
|
|
// Unscoped always disable struct tag "deleted"
|
|
func (engine *Engine) Unscoped() *Session {
|
|
session := engine.NewSession()
|
|
session.IsAutoClose = true
|
|
return session.Unscoped()
|
|
}
|