forked from Shiloh/githaven
1673 lines
49 KiB
Go
1673 lines
49 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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"database/sql"
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"database/sql/driver"
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"encoding/json"
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"errors"
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"fmt"
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"hash/crc32"
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"reflect"
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"strconv"
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"strings"
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"time"
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"github.com/go-xorm/builder"
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"github.com/go-xorm/core"
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)
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// Session keep a pointer to sql.DB and provides all execution of all
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// kind of database operations.
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type Session struct {
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db *core.DB
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Engine *Engine
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Tx *core.Tx
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Statement Statement
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IsAutoCommit bool
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IsCommitedOrRollbacked bool
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TransType string
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IsAutoClose bool
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// Automatically reset the statement after operations that execute a SQL
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// query such as Count(), Find(), Get(), ...
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AutoResetStatement bool
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// !nashtsai! storing these beans due to yet committed tx
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afterInsertBeans map[interface{}]*[]func(interface{})
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afterUpdateBeans map[interface{}]*[]func(interface{})
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afterDeleteBeans map[interface{}]*[]func(interface{})
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// --
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beforeClosures []func(interface{})
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afterClosures []func(interface{})
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prepareStmt bool
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stmtCache map[uint32]*core.Stmt //key: hash.Hash32 of (queryStr, len(queryStr))
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cascadeDeep int
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// !evalphobia! stored the last executed query on this session
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//beforeSQLExec func(string, ...interface{})
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lastSQL string
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lastSQLArgs []interface{}
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}
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// Clone copy all the session's content and return a new session
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func (session *Session) Clone() *Session {
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var sess = *session
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return &sess
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}
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// Init reset the session as the init status.
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func (session *Session) Init() {
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session.Statement.Init()
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session.Statement.Engine = session.Engine
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session.IsAutoCommit = true
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session.IsCommitedOrRollbacked = false
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session.IsAutoClose = false
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session.AutoResetStatement = true
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session.prepareStmt = false
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// !nashtsai! is lazy init better?
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session.afterInsertBeans = make(map[interface{}]*[]func(interface{}), 0)
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session.afterUpdateBeans = make(map[interface{}]*[]func(interface{}), 0)
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session.afterDeleteBeans = make(map[interface{}]*[]func(interface{}), 0)
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session.beforeClosures = make([]func(interface{}), 0)
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session.afterClosures = make([]func(interface{}), 0)
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session.lastSQL = ""
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session.lastSQLArgs = []interface{}{}
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}
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// Close release the connection from pool
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func (session *Session) Close() {
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for _, v := range session.stmtCache {
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v.Close()
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}
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if session.db != nil {
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// When Close be called, if session is a transaction and do not call
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// Commit or Rollback, then call Rollback.
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if session.Tx != nil && !session.IsCommitedOrRollbacked {
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session.Rollback()
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}
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session.Tx = nil
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session.stmtCache = nil
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session.Init()
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session.db = nil
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}
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}
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func (session *Session) resetStatement() {
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if session.AutoResetStatement {
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session.Statement.Init()
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}
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}
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// Prepare set a flag to session that should be prepare statment before execute query
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func (session *Session) Prepare() *Session {
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session.prepareStmt = true
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return session
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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 (session *Session) Sql(query string, args ...interface{}) *Session {
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return session.SQL(query, args...)
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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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func (session *Session) SQL(query interface{}, args ...interface{}) *Session {
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session.Statement.SQL(query, args...)
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return session
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}
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// Where provides custom query condition.
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func (session *Session) Where(query interface{}, args ...interface{}) *Session {
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session.Statement.Where(query, args...)
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return session
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}
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// And provides custom query condition.
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func (session *Session) And(query interface{}, args ...interface{}) *Session {
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session.Statement.And(query, args...)
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return session
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}
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// Or provides custom query condition.
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func (session *Session) Or(query interface{}, args ...interface{}) *Session {
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session.Statement.Or(query, args...)
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return session
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}
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// Id provides converting id as a query condition
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//
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// Deprecated: use ID instead
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func (session *Session) Id(id interface{}) *Session {
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return session.ID(id)
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}
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// ID provides converting id as a query condition
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func (session *Session) ID(id interface{}) *Session {
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session.Statement.ID(id)
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return session
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}
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// Before Apply before Processor, affected bean is passed to closure arg
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func (session *Session) Before(closures func(interface{})) *Session {
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if closures != nil {
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session.beforeClosures = append(session.beforeClosures, closures)
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}
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return session
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}
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// After Apply after Processor, affected bean is passed to closure arg
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func (session *Session) After(closures func(interface{})) *Session {
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if closures != nil {
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session.afterClosures = append(session.afterClosures, closures)
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}
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return session
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}
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// Table can input a string or pointer to struct for special a table to operate.
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func (session *Session) Table(tableNameOrBean interface{}) *Session {
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session.Statement.Table(tableNameOrBean)
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return session
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}
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// Alias set the table alias
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func (session *Session) Alias(alias string) *Session {
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session.Statement.Alias(alias)
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return session
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}
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// In provides a query string like "id in (1, 2, 3)"
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func (session *Session) In(column string, args ...interface{}) *Session {
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session.Statement.In(column, args...)
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return session
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}
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// NotIn provides a query string like "id in (1, 2, 3)"
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func (session *Session) NotIn(column string, args ...interface{}) *Session {
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session.Statement.NotIn(column, args...)
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return session
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}
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// Incr provides a query string like "count = count + 1"
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func (session *Session) Incr(column string, arg ...interface{}) *Session {
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session.Statement.Incr(column, arg...)
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return session
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}
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// Decr provides a query string like "count = count - 1"
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func (session *Session) Decr(column string, arg ...interface{}) *Session {
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session.Statement.Decr(column, arg...)
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return session
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}
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// SetExpr provides a query string like "column = {expression}"
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func (session *Session) SetExpr(column string, expression string) *Session {
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session.Statement.SetExpr(column, expression)
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return session
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}
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// Select provides some columns to special
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func (session *Session) Select(str string) *Session {
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session.Statement.Select(str)
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return session
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}
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// Cols provides some columns to special
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func (session *Session) Cols(columns ...string) *Session {
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session.Statement.Cols(columns...)
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return session
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}
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// AllCols ask all columns
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func (session *Session) AllCols() *Session {
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session.Statement.AllCols()
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return session
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}
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// MustCols specify some columns must use even if they are empty
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func (session *Session) MustCols(columns ...string) *Session {
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session.Statement.MustCols(columns...)
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return session
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}
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// NoCascade indicate that no cascade load child object
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func (session *Session) NoCascade() *Session {
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session.Statement.UseCascade = false
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return session
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}
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// UseBool automatically retrieve condition according struct, but
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// if struct has bool field, it will ignore them. So use UseBool
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// to tell system to do not ignore them.
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// If no paramters, it will use all the bool field of struct, or
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// it will use paramters's columns
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func (session *Session) UseBool(columns ...string) *Session {
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session.Statement.UseBool(columns...)
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return session
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}
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// Distinct use for distinct columns. Caution: when you are using cache,
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// distinct will not be cached because cache system need id,
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// but distinct will not provide id
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func (session *Session) Distinct(columns ...string) *Session {
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session.Statement.Distinct(columns...)
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return session
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}
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// ForUpdate Set Read/Write locking for UPDATE
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func (session *Session) ForUpdate() *Session {
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session.Statement.IsForUpdate = true
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return session
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}
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// Omit Only not use the paramters as select or update columns
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func (session *Session) Omit(columns ...string) *Session {
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session.Statement.Omit(columns...)
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return session
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}
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// Nullable Set null when column is zero-value and nullable for update
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func (session *Session) Nullable(columns ...string) *Session {
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session.Statement.Nullable(columns...)
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return session
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}
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// NoAutoTime means do not automatically give created field and updated field
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// the current time on the current session temporarily
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func (session *Session) NoAutoTime() *Session {
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session.Statement.UseAutoTime = false
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return session
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}
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// NoAutoCondition disable generate SQL condition from beans
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func (session *Session) NoAutoCondition(no ...bool) *Session {
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session.Statement.NoAutoCondition(no...)
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return session
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}
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// Limit provide limit and offset query condition
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func (session *Session) Limit(limit int, start ...int) *Session {
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session.Statement.Limit(limit, start...)
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return session
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}
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// OrderBy provide order by query condition, the input parameter is the content
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// after order by on a sql statement.
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func (session *Session) OrderBy(order string) *Session {
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session.Statement.OrderBy(order)
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return session
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}
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// Desc provide desc order by query condition, the input parameters are columns.
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func (session *Session) Desc(colNames ...string) *Session {
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session.Statement.Desc(colNames...)
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return session
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}
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// Asc provide asc order by query condition, the input parameters are columns.
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func (session *Session) Asc(colNames ...string) *Session {
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session.Statement.Asc(colNames...)
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return session
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}
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// StoreEngine is only avialble mysql dialect currently
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func (session *Session) StoreEngine(storeEngine string) *Session {
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session.Statement.StoreEngine = storeEngine
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return session
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}
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// Charset is only avialble mysql dialect currently
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func (session *Session) Charset(charset string) *Session {
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session.Statement.Charset = charset
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return session
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}
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// Cascade indicates if loading sub Struct
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func (session *Session) Cascade(trueOrFalse ...bool) *Session {
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if len(trueOrFalse) >= 1 {
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session.Statement.UseCascade = trueOrFalse[0]
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}
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return session
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}
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// NoCache ask this session do not retrieve data from cache system and
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// get data from database directly.
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func (session *Session) NoCache() *Session {
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session.Statement.UseCache = false
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return session
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}
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// Join join_operator should be one of INNER, LEFT OUTER, CROSS etc - this will be prepended to JOIN
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func (session *Session) Join(joinOperator string, tablename interface{}, condition string, args ...interface{}) *Session {
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session.Statement.Join(joinOperator, tablename, condition, args...)
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return session
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}
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// GroupBy Generate Group By statement
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func (session *Session) GroupBy(keys string) *Session {
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session.Statement.GroupBy(keys)
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return session
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}
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// Having Generate Having statement
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func (session *Session) Having(conditions string) *Session {
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session.Statement.Having(conditions)
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return session
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}
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// DB db return the wrapper of sql.DB
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func (session *Session) DB() *core.DB {
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if session.db == nil {
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session.db = session.Engine.db
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session.stmtCache = make(map[uint32]*core.Stmt, 0)
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}
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return session.db
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}
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// Conds returns session query conditions
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func (session *Session) Conds() builder.Cond {
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return session.Statement.cond
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}
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func cleanupProcessorsClosures(slices *[]func(interface{})) {
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if len(*slices) > 0 {
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*slices = make([]func(interface{}), 0)
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}
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}
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func (session *Session) scanMapIntoStruct(obj interface{}, objMap map[string][]byte) error {
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dataStruct := rValue(obj)
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if dataStruct.Kind() != reflect.Struct {
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return errors.New("Expected a pointer to a struct")
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}
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var col *core.Column
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session.Statement.setRefValue(dataStruct)
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table := session.Statement.RefTable
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tableName := session.Statement.tableName
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for key, data := range objMap {
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if col = table.GetColumn(key); col == nil {
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session.Engine.logger.Warnf("struct %v's has not field %v. %v",
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table.Type.Name(), key, table.ColumnsSeq())
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continue
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}
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fieldName := col.FieldName
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fieldPath := strings.Split(fieldName, ".")
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var fieldValue reflect.Value
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if len(fieldPath) > 2 {
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session.Engine.logger.Error("Unsupported mutliderive", fieldName)
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continue
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} else if len(fieldPath) == 2 {
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parentField := dataStruct.FieldByName(fieldPath[0])
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if parentField.IsValid() {
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fieldValue = parentField.FieldByName(fieldPath[1])
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}
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} else {
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fieldValue = dataStruct.FieldByName(fieldName)
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}
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if !fieldValue.IsValid() || !fieldValue.CanSet() {
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session.Engine.logger.Warnf("table %v's column %v is not valid or cannot set", tableName, key)
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continue
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}
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err := session.bytes2Value(col, &fieldValue, data)
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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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return nil
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}
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func (session *Session) canCache() bool {
|
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if session.Statement.RefTable == nil ||
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session.Statement.JoinStr != "" ||
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session.Statement.RawSQL != "" ||
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!session.Statement.UseCache ||
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session.Statement.IsForUpdate ||
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session.Tx != nil ||
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len(session.Statement.selectStr) > 0 {
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return false
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}
|
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return true
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}
|
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|
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func (session *Session) doPrepare(sqlStr string) (stmt *core.Stmt, err error) {
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crc := crc32.ChecksumIEEE([]byte(sqlStr))
|
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// TODO try hash(sqlStr+len(sqlStr))
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var has bool
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stmt, has = session.stmtCache[crc]
|
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if !has {
|
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stmt, err = session.DB().Prepare(sqlStr)
|
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if err != nil {
|
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return nil, err
|
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}
|
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session.stmtCache[crc] = stmt
|
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}
|
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return
|
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}
|
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|
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func (session *Session) getField(dataStruct *reflect.Value, key string, table *core.Table, idx int) *reflect.Value {
|
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var col *core.Column
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if col = table.GetColumnIdx(key, idx); col == nil {
|
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//session.Engine.logger.Warnf("table %v has no column %v. %v", table.Name, key, table.ColumnsSeq())
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return nil
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}
|
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|
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fieldValue, err := col.ValueOfV(dataStruct)
|
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if err != nil {
|
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session.Engine.logger.Error(err)
|
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return nil
|
||
}
|
||
|
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if !fieldValue.IsValid() || !fieldValue.CanSet() {
|
||
session.Engine.logger.Warnf("table %v's column %v is not valid or cannot set", table.Name, key)
|
||
return nil
|
||
}
|
||
return fieldValue
|
||
}
|
||
|
||
// Cell cell is a result of one column field
|
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type Cell *interface{}
|
||
|
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func (session *Session) rows2Beans(rows *core.Rows, fields []string, fieldsCount int,
|
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table *core.Table, newElemFunc func() reflect.Value,
|
||
sliceValueSetFunc func(*reflect.Value)) error {
|
||
for rows.Next() {
|
||
var newValue = newElemFunc()
|
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bean := newValue.Interface()
|
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dataStruct := rValue(bean)
|
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err := session._row2Bean(rows, fields, fieldsCount, bean, &dataStruct, table)
|
||
if err != nil {
|
||
return err
|
||
}
|
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sliceValueSetFunc(&newValue)
|
||
}
|
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return nil
|
||
}
|
||
|
||
func (session *Session) row2Bean(rows *core.Rows, fields []string, fieldsCount int, bean interface{}) error {
|
||
dataStruct := rValue(bean)
|
||
if dataStruct.Kind() != reflect.Struct {
|
||
return errors.New("Expected a pointer to a struct")
|
||
}
|
||
|
||
session.Statement.setRefValue(dataStruct)
|
||
|
||
return session._row2Bean(rows, fields, fieldsCount, bean, &dataStruct, session.Statement.RefTable)
|
||
}
|
||
|
||
func (session *Session) _row2Bean(rows *core.Rows, fields []string, fieldsCount int, bean interface{}, dataStruct *reflect.Value, table *core.Table) error {
|
||
scanResults := make([]interface{}, fieldsCount)
|
||
for i := 0; i < len(fields); i++ {
|
||
var cell interface{}
|
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scanResults[i] = &cell
|
||
}
|
||
if err := rows.Scan(scanResults...); err != nil {
|
||
return err
|
||
}
|
||
|
||
if b, hasBeforeSet := bean.(BeforeSetProcessor); hasBeforeSet {
|
||
for ii, key := range fields {
|
||
b.BeforeSet(key, Cell(scanResults[ii].(*interface{})))
|
||
}
|
||
}
|
||
|
||
defer func() {
|
||
if b, hasAfterSet := bean.(AfterSetProcessor); hasAfterSet {
|
||
for ii, key := range fields {
|
||
b.AfterSet(key, Cell(scanResults[ii].(*interface{})))
|
||
}
|
||
}
|
||
}()
|
||
|
||
var tempMap = make(map[string]int)
|
||
for ii, key := range fields {
|
||
var idx int
|
||
var ok bool
|
||
var lKey = strings.ToLower(key)
|
||
if idx, ok = tempMap[lKey]; !ok {
|
||
idx = 0
|
||
} else {
|
||
idx = idx + 1
|
||
}
|
||
tempMap[lKey] = idx
|
||
|
||
if fieldValue := session.getField(dataStruct, key, table, idx); fieldValue != nil {
|
||
rawValue := reflect.Indirect(reflect.ValueOf(scanResults[ii]))
|
||
|
||
// if row is null then ignore
|
||
if rawValue.Interface() == nil {
|
||
continue
|
||
}
|
||
|
||
if fieldValue.CanAddr() {
|
||
if structConvert, ok := fieldValue.Addr().Interface().(core.Conversion); ok {
|
||
if data, err := value2Bytes(&rawValue); err == nil {
|
||
structConvert.FromDB(data)
|
||
} else {
|
||
session.Engine.logger.Error(err)
|
||
}
|
||
continue
|
||
}
|
||
}
|
||
|
||
if _, ok := fieldValue.Interface().(core.Conversion); ok {
|
||
if data, err := value2Bytes(&rawValue); err == nil {
|
||
if fieldValue.Kind() == reflect.Ptr && fieldValue.IsNil() {
|
||
fieldValue.Set(reflect.New(fieldValue.Type().Elem()))
|
||
}
|
||
fieldValue.Interface().(core.Conversion).FromDB(data)
|
||
} else {
|
||
session.Engine.logger.Error(err)
|
||
}
|
||
continue
|
||
}
|
||
|
||
rawValueType := reflect.TypeOf(rawValue.Interface())
|
||
vv := reflect.ValueOf(rawValue.Interface())
|
||
|
||
fieldType := fieldValue.Type()
|
||
hasAssigned := false
|
||
col := table.GetColumnIdx(key, idx)
|
||
|
||
if col.SQLType.IsJson() {
|
||
var bs []byte
|
||
if rawValueType.Kind() == reflect.String {
|
||
bs = []byte(vv.String())
|
||
} else if rawValueType.ConvertibleTo(core.BytesType) {
|
||
bs = vv.Bytes()
|
||
} else {
|
||
return fmt.Errorf("unsupported database data type: %s %v", key, rawValueType.Kind())
|
||
}
|
||
|
||
hasAssigned = true
|
||
|
||
if len(bs) > 0 {
|
||
if fieldValue.CanAddr() {
|
||
err := json.Unmarshal(bs, fieldValue.Addr().Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(key, err)
|
||
return err
|
||
}
|
||
} else {
|
||
x := reflect.New(fieldType)
|
||
err := json.Unmarshal(bs, x.Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(key, err)
|
||
return err
|
||
}
|
||
fieldValue.Set(x.Elem())
|
||
}
|
||
}
|
||
|
||
continue
|
||
}
|
||
|
||
switch fieldType.Kind() {
|
||
case reflect.Complex64, reflect.Complex128:
|
||
// TODO: reimplement this
|
||
var bs []byte
|
||
if rawValueType.Kind() == reflect.String {
|
||
bs = []byte(vv.String())
|
||
} else if rawValueType.ConvertibleTo(core.BytesType) {
|
||
bs = vv.Bytes()
|
||
}
|
||
|
||
hasAssigned = true
|
||
if len(bs) > 0 {
|
||
if fieldValue.CanAddr() {
|
||
err := json.Unmarshal(bs, fieldValue.Addr().Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return err
|
||
}
|
||
} else {
|
||
x := reflect.New(fieldType)
|
||
err := json.Unmarshal(bs, x.Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return err
|
||
}
|
||
fieldValue.Set(x.Elem())
|
||
}
|
||
}
|
||
case reflect.Slice, reflect.Array:
|
||
switch rawValueType.Kind() {
|
||
case reflect.Slice, reflect.Array:
|
||
switch rawValueType.Elem().Kind() {
|
||
case reflect.Uint8:
|
||
if fieldType.Elem().Kind() == reflect.Uint8 {
|
||
hasAssigned = true
|
||
fieldValue.Set(vv)
|
||
}
|
||
}
|
||
}
|
||
case reflect.String:
|
||
if rawValueType.Kind() == reflect.String {
|
||
hasAssigned = true
|
||
fieldValue.SetString(vv.String())
|
||
}
|
||
case reflect.Bool:
|
||
if rawValueType.Kind() == reflect.Bool {
|
||
hasAssigned = true
|
||
fieldValue.SetBool(vv.Bool())
|
||
}
|
||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||
switch rawValueType.Kind() {
|
||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||
hasAssigned = true
|
||
fieldValue.SetInt(vv.Int())
|
||
}
|
||
case reflect.Float32, reflect.Float64:
|
||
switch rawValueType.Kind() {
|
||
case reflect.Float32, reflect.Float64:
|
||
hasAssigned = true
|
||
fieldValue.SetFloat(vv.Float())
|
||
}
|
||
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
|
||
switch rawValueType.Kind() {
|
||
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
|
||
hasAssigned = true
|
||
fieldValue.SetUint(vv.Uint())
|
||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||
hasAssigned = true
|
||
fieldValue.SetUint(uint64(vv.Int()))
|
||
}
|
||
case reflect.Struct:
|
||
if fieldType.ConvertibleTo(core.TimeType) {
|
||
if rawValueType == core.TimeType {
|
||
hasAssigned = true
|
||
|
||
t := vv.Convert(core.TimeType).Interface().(time.Time)
|
||
|
||
z, _ := t.Zone()
|
||
dbTZ := session.Engine.DatabaseTZ
|
||
if dbTZ == nil {
|
||
if session.Engine.dialect.DBType() == core.SQLITE {
|
||
dbTZ = time.UTC
|
||
} else {
|
||
dbTZ = time.Local
|
||
}
|
||
}
|
||
|
||
// set new location if database don't save timezone or give an incorrect timezone
|
||
if len(z) == 0 || t.Year() == 0 || t.Location().String() != dbTZ.String() { // !nashtsai! HACK tmp work around for lib/pq doesn't properly time with location
|
||
session.Engine.logger.Debugf("empty zone key[%v] : %v | zone: %v | location: %+v\n", key, t, z, *t.Location())
|
||
t = time.Date(t.Year(), t.Month(), t.Day(), t.Hour(),
|
||
t.Minute(), t.Second(), t.Nanosecond(), dbTZ)
|
||
}
|
||
|
||
// !nashtsai! convert to engine location
|
||
if col.TimeZone == nil {
|
||
t = t.In(session.Engine.TZLocation)
|
||
} else {
|
||
t = t.In(col.TimeZone)
|
||
}
|
||
fieldValue.Set(reflect.ValueOf(t).Convert(fieldType))
|
||
|
||
// t = fieldValue.Interface().(time.Time)
|
||
// z, _ = t.Zone()
|
||
// session.Engine.LogDebug("fieldValue key[%v]: %v | zone: %v | location: %+v\n", key, t, z, *t.Location())
|
||
} else if rawValueType == core.IntType || rawValueType == core.Int64Type ||
|
||
rawValueType == core.Int32Type {
|
||
hasAssigned = true
|
||
var tz *time.Location
|
||
if col.TimeZone == nil {
|
||
tz = session.Engine.TZLocation
|
||
} else {
|
||
tz = col.TimeZone
|
||
}
|
||
t := time.Unix(vv.Int(), 0).In(tz)
|
||
//vv = reflect.ValueOf(t)
|
||
fieldValue.Set(reflect.ValueOf(t).Convert(fieldType))
|
||
} else {
|
||
if d, ok := vv.Interface().([]uint8); ok {
|
||
hasAssigned = true
|
||
t, err := session.byte2Time(col, d)
|
||
if err != nil {
|
||
session.Engine.logger.Error("byte2Time error:", err.Error())
|
||
hasAssigned = false
|
||
} else {
|
||
fieldValue.Set(reflect.ValueOf(t).Convert(fieldType))
|
||
}
|
||
} else if d, ok := vv.Interface().(string); ok {
|
||
hasAssigned = true
|
||
t, err := session.str2Time(col, d)
|
||
if err != nil {
|
||
session.Engine.logger.Error("byte2Time error:", err.Error())
|
||
hasAssigned = false
|
||
} else {
|
||
fieldValue.Set(reflect.ValueOf(t).Convert(fieldType))
|
||
}
|
||
} else {
|
||
panic(fmt.Sprintf("rawValueType is %v, value is %v", rawValueType, vv.Interface()))
|
||
}
|
||
}
|
||
} else if nulVal, ok := fieldValue.Addr().Interface().(sql.Scanner); ok {
|
||
// !<winxxp>! 增加支持sql.Scanner接口的结构，如sql.NullString
|
||
hasAssigned = true
|
||
if err := nulVal.Scan(vv.Interface()); err != nil {
|
||
session.Engine.logger.Error("sql.Sanner error:", err.Error())
|
||
hasAssigned = false
|
||
}
|
||
} else if col.SQLType.IsJson() {
|
||
if rawValueType.Kind() == reflect.String {
|
||
hasAssigned = true
|
||
x := reflect.New(fieldType)
|
||
if len([]byte(vv.String())) > 0 {
|
||
err := json.Unmarshal([]byte(vv.String()), x.Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return err
|
||
}
|
||
fieldValue.Set(x.Elem())
|
||
}
|
||
} else if rawValueType.Kind() == reflect.Slice {
|
||
hasAssigned = true
|
||
x := reflect.New(fieldType)
|
||
if len(vv.Bytes()) > 0 {
|
||
err := json.Unmarshal(vv.Bytes(), x.Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return err
|
||
}
|
||
fieldValue.Set(x.Elem())
|
||
}
|
||
}
|
||
} else if session.Statement.UseCascade {
|
||
table := session.Engine.autoMapType(*fieldValue)
|
||
if table != nil {
|
||
hasAssigned = true
|
||
if len(table.PrimaryKeys) != 1 {
|
||
panic("unsupported non or composited primary key cascade")
|
||
}
|
||
var pk = make(core.PK, len(table.PrimaryKeys))
|
||
|
||
switch rawValueType.Kind() {
|
||
case reflect.Int64:
|
||
pk[0] = vv.Int()
|
||
case reflect.Int:
|
||
pk[0] = int(vv.Int())
|
||
case reflect.Int32:
|
||
pk[0] = int32(vv.Int())
|
||
case reflect.Int16:
|
||
pk[0] = int16(vv.Int())
|
||
case reflect.Int8:
|
||
pk[0] = int8(vv.Int())
|
||
case reflect.Uint64:
|
||
pk[0] = vv.Uint()
|
||
case reflect.Uint:
|
||
pk[0] = uint(vv.Uint())
|
||
case reflect.Uint32:
|
||
pk[0] = uint32(vv.Uint())
|
||
case reflect.Uint16:
|
||
pk[0] = uint16(vv.Uint())
|
||
case reflect.Uint8:
|
||
pk[0] = uint8(vv.Uint())
|
||
case reflect.String:
|
||
pk[0] = vv.String()
|
||
case reflect.Slice:
|
||
pk[0], _ = strconv.ParseInt(string(rawValue.Interface().([]byte)), 10, 64)
|
||
default:
|
||
panic(fmt.Sprintf("unsupported primary key type: %v, %v", rawValueType, fieldValue))
|
||
}
|
||
|
||
if !isPKZero(pk) {
|
||
// !nashtsai! TODO for hasOne relationship, it's preferred to use join query for eager fetch
|
||
// however, also need to consider adding a 'lazy' attribute to xorm tag which allow hasOne
|
||
// property to be fetched lazily
|
||
structInter := reflect.New(fieldValue.Type())
|
||
newsession := session.Engine.NewSession()
|
||
defer newsession.Close()
|
||
has, err := newsession.Id(pk).NoCascade().Get(structInter.Interface())
|
||
if err != nil {
|
||
return err
|
||
}
|
||
if has {
|
||
//v := structInter.Elem().Interface()
|
||
//fieldValue.Set(reflect.ValueOf(v))
|
||
fieldValue.Set(structInter.Elem())
|
||
} else {
|
||
return errors.New("cascade obj is not exist")
|
||
}
|
||
}
|
||
} else {
|
||
session.Engine.logger.Error("unsupported struct type in Scan: ", fieldValue.Type().String())
|
||
}
|
||
}
|
||
case reflect.Ptr:
|
||
// !nashtsai! TODO merge duplicated codes above
|
||
//typeStr := fieldType.String()
|
||
switch fieldType {
|
||
// following types case matching ptr's native type, therefore assign ptr directly
|
||
case core.PtrStringType:
|
||
if rawValueType.Kind() == reflect.String {
|
||
x := vv.String()
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.PtrBoolType:
|
||
if rawValueType.Kind() == reflect.Bool {
|
||
x := vv.Bool()
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.PtrTimeType:
|
||
if rawValueType == core.PtrTimeType {
|
||
hasAssigned = true
|
||
var x = rawValue.Interface().(time.Time)
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.PtrFloat64Type:
|
||
if rawValueType.Kind() == reflect.Float64 {
|
||
x := vv.Float()
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.PtrUint64Type:
|
||
if rawValueType.Kind() == reflect.Int64 {
|
||
var x = uint64(vv.Int())
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.PtrInt64Type:
|
||
if rawValueType.Kind() == reflect.Int64 {
|
||
x := vv.Int()
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.PtrFloat32Type:
|
||
if rawValueType.Kind() == reflect.Float64 {
|
||
var x = float32(vv.Float())
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.PtrIntType:
|
||
if rawValueType.Kind() == reflect.Int64 {
|
||
var x = int(vv.Int())
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.PtrInt32Type:
|
||
if rawValueType.Kind() == reflect.Int64 {
|
||
var x = int32(vv.Int())
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.PtrInt8Type:
|
||
if rawValueType.Kind() == reflect.Int64 {
|
||
var x = int8(vv.Int())
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.PtrInt16Type:
|
||
if rawValueType.Kind() == reflect.Int64 {
|
||
var x = int16(vv.Int())
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.PtrUintType:
|
||
if rawValueType.Kind() == reflect.Int64 {
|
||
var x = uint(vv.Int())
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.PtrUint32Type:
|
||
if rawValueType.Kind() == reflect.Int64 {
|
||
var x = uint32(vv.Int())
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.Uint8Type:
|
||
if rawValueType.Kind() == reflect.Int64 {
|
||
var x = uint8(vv.Int())
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.Uint16Type:
|
||
if rawValueType.Kind() == reflect.Int64 {
|
||
var x = uint16(vv.Int())
|
||
hasAssigned = true
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
case core.Complex64Type:
|
||
var x complex64
|
||
if len([]byte(vv.String())) > 0 {
|
||
err := json.Unmarshal([]byte(vv.String()), &x)
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
} else {
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
}
|
||
hasAssigned = true
|
||
case core.Complex128Type:
|
||
var x complex128
|
||
if len([]byte(vv.String())) > 0 {
|
||
err := json.Unmarshal([]byte(vv.String()), &x)
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
} else {
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
}
|
||
}
|
||
hasAssigned = true
|
||
} // switch fieldType
|
||
// default:
|
||
// session.Engine.LogError("unsupported type in Scan: ", reflect.TypeOf(v).String())
|
||
} // switch fieldType.Kind()
|
||
|
||
// !nashtsai! for value can't be assigned directly fallback to convert to []byte then back to value
|
||
if !hasAssigned {
|
||
data, err := value2Bytes(&rawValue)
|
||
if err == nil {
|
||
session.bytes2Value(col, fieldValue, data)
|
||
} else {
|
||
session.Engine.logger.Error(err.Error())
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return nil
|
||
}
|
||
|
||
func (session *Session) queryPreprocess(sqlStr *string, paramStr ...interface{}) {
|
||
for _, filter := range session.Engine.dialect.Filters() {
|
||
*sqlStr = filter.Do(*sqlStr, session.Engine.dialect, session.Statement.RefTable)
|
||
}
|
||
|
||
session.saveLastSQL(*sqlStr, paramStr...)
|
||
}
|
||
|
||
func (session *Session) str2Time(col *core.Column, data string) (outTime time.Time, outErr error) {
|
||
sdata := strings.TrimSpace(data)
|
||
var x time.Time
|
||
var err error
|
||
|
||
if sdata == "0000-00-00 00:00:00" ||
|
||
sdata == "0001-01-01 00:00:00" {
|
||
} else if !strings.ContainsAny(sdata, "- :") { // !nashtsai! has only found that mymysql driver is using this for time type column
|
||
// time stamp
|
||
sd, err := strconv.ParseInt(sdata, 10, 64)
|
||
if err == nil {
|
||
x = time.Unix(sd, 0)
|
||
// !nashtsai! HACK mymysql driver is casuing Local location being change to CHAT and cause wrong time conversion
|
||
if col.TimeZone == nil {
|
||
x = x.In(session.Engine.TZLocation)
|
||
} else {
|
||
x = x.In(col.TimeZone)
|
||
}
|
||
session.Engine.logger.Debugf("time(0) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
|
||
} else {
|
||
session.Engine.logger.Debugf("time(0) err key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
|
||
}
|
||
} else if len(sdata) > 19 && strings.Contains(sdata, "-") {
|
||
x, err = time.ParseInLocation(time.RFC3339Nano, sdata, session.Engine.TZLocation)
|
||
session.Engine.logger.Debugf("time(1) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
|
||
if err != nil {
|
||
x, err = time.ParseInLocation("2006-01-02 15:04:05.999999999", sdata, session.Engine.TZLocation)
|
||
session.Engine.logger.Debugf("time(2) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
|
||
}
|
||
if err != nil {
|
||
x, err = time.ParseInLocation("2006-01-02 15:04:05.9999999 Z07:00", sdata, session.Engine.TZLocation)
|
||
session.Engine.logger.Debugf("time(3) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
|
||
}
|
||
|
||
} else if len(sdata) == 19 && strings.Contains(sdata, "-") {
|
||
x, err = time.ParseInLocation("2006-01-02 15:04:05", sdata, session.Engine.TZLocation)
|
||
session.Engine.logger.Debugf("time(4) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
|
||
} else if len(sdata) == 10 && sdata[4] == '-' && sdata[7] == '-' {
|
||
x, err = time.ParseInLocation("2006-01-02", sdata, session.Engine.TZLocation)
|
||
session.Engine.logger.Debugf("time(5) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
|
||
} else if col.SQLType.Name == core.Time {
|
||
if strings.Contains(sdata, " ") {
|
||
ssd := strings.Split(sdata, " ")
|
||
sdata = ssd[1]
|
||
}
|
||
|
||
sdata = strings.TrimSpace(sdata)
|
||
if session.Engine.dialect.DBType() == core.MYSQL && len(sdata) > 8 {
|
||
sdata = sdata[len(sdata)-8:]
|
||
}
|
||
|
||
st := fmt.Sprintf("2006-01-02 %v", sdata)
|
||
x, err = time.ParseInLocation("2006-01-02 15:04:05", st, session.Engine.TZLocation)
|
||
session.Engine.logger.Debugf("time(6) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
|
||
} else {
|
||
outErr = fmt.Errorf("unsupported time format %v", sdata)
|
||
return
|
||
}
|
||
if err != nil {
|
||
outErr = fmt.Errorf("unsupported time format %v: %v", sdata, err)
|
||
return
|
||
}
|
||
outTime = x
|
||
return
|
||
}
|
||
|
||
func (session *Session) byte2Time(col *core.Column, data []byte) (outTime time.Time, outErr error) {
|
||
return session.str2Time(col, string(data))
|
||
}
|
||
|
||
// convert a db data([]byte) to a field value
|
||
func (session *Session) bytes2Value(col *core.Column, fieldValue *reflect.Value, data []byte) error {
|
||
if structConvert, ok := fieldValue.Addr().Interface().(core.Conversion); ok {
|
||
return structConvert.FromDB(data)
|
||
}
|
||
|
||
if structConvert, ok := fieldValue.Interface().(core.Conversion); ok {
|
||
return structConvert.FromDB(data)
|
||
}
|
||
|
||
var v interface{}
|
||
key := col.Name
|
||
fieldType := fieldValue.Type()
|
||
|
||
switch fieldType.Kind() {
|
||
case reflect.Complex64, reflect.Complex128:
|
||
x := reflect.New(fieldType)
|
||
if len(data) > 0 {
|
||
err := json.Unmarshal(data, x.Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return err
|
||
}
|
||
fieldValue.Set(x.Elem())
|
||
}
|
||
case reflect.Slice, reflect.Array, reflect.Map:
|
||
v = data
|
||
t := fieldType.Elem()
|
||
k := t.Kind()
|
||
if col.SQLType.IsText() {
|
||
x := reflect.New(fieldType)
|
||
if len(data) > 0 {
|
||
err := json.Unmarshal(data, x.Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return err
|
||
}
|
||
fieldValue.Set(x.Elem())
|
||
}
|
||
} else if col.SQLType.IsBlob() {
|
||
if k == reflect.Uint8 {
|
||
fieldValue.Set(reflect.ValueOf(v))
|
||
} else {
|
||
x := reflect.New(fieldType)
|
||
if len(data) > 0 {
|
||
err := json.Unmarshal(data, x.Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return err
|
||
}
|
||
fieldValue.Set(x.Elem())
|
||
}
|
||
}
|
||
} else {
|
||
return ErrUnSupportedType
|
||
}
|
||
case reflect.String:
|
||
fieldValue.SetString(string(data))
|
||
case reflect.Bool:
|
||
d := string(data)
|
||
v, err := strconv.ParseBool(d)
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as bool: %s", key, err.Error())
|
||
}
|
||
fieldValue.Set(reflect.ValueOf(v))
|
||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||
sdata := string(data)
|
||
var x int64
|
||
var err error
|
||
// for mysql, when use bit, it returned \x01
|
||
if col.SQLType.Name == core.Bit &&
|
||
session.Engine.dialect.DBType() == core.MYSQL { // !nashtsai! TODO dialect needs to provide conversion interface API
|
||
if len(data) == 1 {
|
||
x = int64(data[0])
|
||
} else {
|
||
x = 0
|
||
}
|
||
} else if strings.HasPrefix(sdata, "0x") {
|
||
x, err = strconv.ParseInt(sdata, 16, 64)
|
||
} else if strings.HasPrefix(sdata, "0") {
|
||
x, err = strconv.ParseInt(sdata, 8, 64)
|
||
} else if strings.EqualFold(sdata, "true") {
|
||
x = 1
|
||
} else if strings.EqualFold(sdata, "false") {
|
||
x = 0
|
||
} else {
|
||
x, err = strconv.ParseInt(sdata, 10, 64)
|
||
}
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as int: %s", key, err.Error())
|
||
}
|
||
fieldValue.SetInt(x)
|
||
case reflect.Float32, reflect.Float64:
|
||
x, err := strconv.ParseFloat(string(data), 64)
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as float64: %s", key, err.Error())
|
||
}
|
||
fieldValue.SetFloat(x)
|
||
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
|
||
x, err := strconv.ParseUint(string(data), 10, 64)
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as int: %s", key, err.Error())
|
||
}
|
||
fieldValue.SetUint(x)
|
||
//Currently only support Time type
|
||
case reflect.Struct:
|
||
// !<winxxp>! 增加支持sql.Scanner接口的结构，如sql.NullString
|
||
if nulVal, ok := fieldValue.Addr().Interface().(sql.Scanner); ok {
|
||
if err := nulVal.Scan(data); err != nil {
|
||
return fmt.Errorf("sql.Scan(%v) failed: %s ", data, err.Error())
|
||
}
|
||
} else {
|
||
if fieldType.ConvertibleTo(core.TimeType) {
|
||
x, err := session.byte2Time(col, data)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
v = x
|
||
fieldValue.Set(reflect.ValueOf(v).Convert(fieldType))
|
||
} else if session.Statement.UseCascade {
|
||
table := session.Engine.autoMapType(*fieldValue)
|
||
if table != nil {
|
||
// TODO: current only support 1 primary key
|
||
if len(table.PrimaryKeys) > 1 {
|
||
panic("unsupported composited primary key cascade")
|
||
}
|
||
var pk = make(core.PK, len(table.PrimaryKeys))
|
||
rawValueType := table.ColumnType(table.PKColumns()[0].FieldName)
|
||
var err error
|
||
pk[0], err = str2PK(string(data), rawValueType)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
|
||
if !isPKZero(pk) {
|
||
// !nashtsai! TODO for hasOne relationship, it's preferred to use join query for eager fetch
|
||
// however, also need to consider adding a 'lazy' attribute to xorm tag which allow hasOne
|
||
// property to be fetched lazily
|
||
structInter := reflect.New(fieldValue.Type())
|
||
newsession := session.Engine.NewSession()
|
||
defer newsession.Close()
|
||
has, err := newsession.Id(pk).NoCascade().Get(structInter.Interface())
|
||
if err != nil {
|
||
return err
|
||
}
|
||
if has {
|
||
v = structInter.Elem().Interface()
|
||
fieldValue.Set(reflect.ValueOf(v))
|
||
} else {
|
||
return errors.New("cascade obj is not exist")
|
||
}
|
||
}
|
||
} else {
|
||
return fmt.Errorf("unsupported struct type in Scan: %s", fieldValue.Type().String())
|
||
}
|
||
}
|
||
}
|
||
case reflect.Ptr:
|
||
// !nashtsai! TODO merge duplicated codes above
|
||
//typeStr := fieldType.String()
|
||
switch fieldType.Elem().Kind() {
|
||
// case "*string":
|
||
case core.StringType.Kind():
|
||
x := string(data)
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*bool":
|
||
case core.BoolType.Kind():
|
||
d := string(data)
|
||
v, err := strconv.ParseBool(d)
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as bool: %s", key, err.Error())
|
||
}
|
||
fieldValue.Set(reflect.ValueOf(&v).Convert(fieldType))
|
||
// case "*complex64":
|
||
case core.Complex64Type.Kind():
|
||
var x complex64
|
||
if len(data) > 0 {
|
||
err := json.Unmarshal(data, &x)
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return err
|
||
}
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
}
|
||
// case "*complex128":
|
||
case core.Complex128Type.Kind():
|
||
var x complex128
|
||
if len(data) > 0 {
|
||
err := json.Unmarshal(data, &x)
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return err
|
||
}
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
}
|
||
// case "*float64":
|
||
case core.Float64Type.Kind():
|
||
x, err := strconv.ParseFloat(string(data), 64)
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as float64: %s", key, err.Error())
|
||
}
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*float32":
|
||
case core.Float32Type.Kind():
|
||
var x float32
|
||
x1, err := strconv.ParseFloat(string(data), 32)
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as float32: %s", key, err.Error())
|
||
}
|
||
x = float32(x1)
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*uint64":
|
||
case core.Uint64Type.Kind():
|
||
var x uint64
|
||
x, err := strconv.ParseUint(string(data), 10, 64)
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as int: %s", key, err.Error())
|
||
}
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*uint":
|
||
case core.UintType.Kind():
|
||
var x uint
|
||
x1, err := strconv.ParseUint(string(data), 10, 64)
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as int: %s", key, err.Error())
|
||
}
|
||
x = uint(x1)
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*uint32":
|
||
case core.Uint32Type.Kind():
|
||
var x uint32
|
||
x1, err := strconv.ParseUint(string(data), 10, 64)
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as int: %s", key, err.Error())
|
||
}
|
||
x = uint32(x1)
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*uint8":
|
||
case core.Uint8Type.Kind():
|
||
var x uint8
|
||
x1, err := strconv.ParseUint(string(data), 10, 64)
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as int: %s", key, err.Error())
|
||
}
|
||
x = uint8(x1)
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*uint16":
|
||
case core.Uint16Type.Kind():
|
||
var x uint16
|
||
x1, err := strconv.ParseUint(string(data), 10, 64)
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as int: %s", key, err.Error())
|
||
}
|
||
x = uint16(x1)
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*int64":
|
||
case core.Int64Type.Kind():
|
||
sdata := string(data)
|
||
var x int64
|
||
var err error
|
||
// for mysql, when use bit, it returned \x01
|
||
if col.SQLType.Name == core.Bit &&
|
||
strings.Contains(session.Engine.DriverName(), "mysql") {
|
||
if len(data) == 1 {
|
||
x = int64(data[0])
|
||
} else {
|
||
x = 0
|
||
}
|
||
} else if strings.HasPrefix(sdata, "0x") {
|
||
x, err = strconv.ParseInt(sdata, 16, 64)
|
||
} else if strings.HasPrefix(sdata, "0") {
|
||
x, err = strconv.ParseInt(sdata, 8, 64)
|
||
} else {
|
||
x, err = strconv.ParseInt(sdata, 10, 64)
|
||
}
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as int: %s", key, err.Error())
|
||
}
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*int":
|
||
case core.IntType.Kind():
|
||
sdata := string(data)
|
||
var x int
|
||
var x1 int64
|
||
var err error
|
||
// for mysql, when use bit, it returned \x01
|
||
if col.SQLType.Name == core.Bit &&
|
||
strings.Contains(session.Engine.DriverName(), "mysql") {
|
||
if len(data) == 1 {
|
||
x = int(data[0])
|
||
} else {
|
||
x = 0
|
||
}
|
||
} else if strings.HasPrefix(sdata, "0x") {
|
||
x1, err = strconv.ParseInt(sdata, 16, 64)
|
||
x = int(x1)
|
||
} else if strings.HasPrefix(sdata, "0") {
|
||
x1, err = strconv.ParseInt(sdata, 8, 64)
|
||
x = int(x1)
|
||
} else {
|
||
x1, err = strconv.ParseInt(sdata, 10, 64)
|
||
x = int(x1)
|
||
}
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as int: %s", key, err.Error())
|
||
}
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*int32":
|
||
case core.Int32Type.Kind():
|
||
sdata := string(data)
|
||
var x int32
|
||
var x1 int64
|
||
var err error
|
||
// for mysql, when use bit, it returned \x01
|
||
if col.SQLType.Name == core.Bit &&
|
||
session.Engine.dialect.DBType() == core.MYSQL {
|
||
if len(data) == 1 {
|
||
x = int32(data[0])
|
||
} else {
|
||
x = 0
|
||
}
|
||
} else if strings.HasPrefix(sdata, "0x") {
|
||
x1, err = strconv.ParseInt(sdata, 16, 64)
|
||
x = int32(x1)
|
||
} else if strings.HasPrefix(sdata, "0") {
|
||
x1, err = strconv.ParseInt(sdata, 8, 64)
|
||
x = int32(x1)
|
||
} else {
|
||
x1, err = strconv.ParseInt(sdata, 10, 64)
|
||
x = int32(x1)
|
||
}
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as int: %s", key, err.Error())
|
||
}
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*int8":
|
||
case core.Int8Type.Kind():
|
||
sdata := string(data)
|
||
var x int8
|
||
var x1 int64
|
||
var err error
|
||
// for mysql, when use bit, it returned \x01
|
||
if col.SQLType.Name == core.Bit &&
|
||
strings.Contains(session.Engine.DriverName(), "mysql") {
|
||
if len(data) == 1 {
|
||
x = int8(data[0])
|
||
} else {
|
||
x = 0
|
||
}
|
||
} else if strings.HasPrefix(sdata, "0x") {
|
||
x1, err = strconv.ParseInt(sdata, 16, 64)
|
||
x = int8(x1)
|
||
} else if strings.HasPrefix(sdata, "0") {
|
||
x1, err = strconv.ParseInt(sdata, 8, 64)
|
||
x = int8(x1)
|
||
} else {
|
||
x1, err = strconv.ParseInt(sdata, 10, 64)
|
||
x = int8(x1)
|
||
}
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as int: %s", key, err.Error())
|
||
}
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*int16":
|
||
case core.Int16Type.Kind():
|
||
sdata := string(data)
|
||
var x int16
|
||
var x1 int64
|
||
var err error
|
||
// for mysql, when use bit, it returned \x01
|
||
if col.SQLType.Name == core.Bit &&
|
||
strings.Contains(session.Engine.DriverName(), "mysql") {
|
||
if len(data) == 1 {
|
||
x = int16(data[0])
|
||
} else {
|
||
x = 0
|
||
}
|
||
} else if strings.HasPrefix(sdata, "0x") {
|
||
x1, err = strconv.ParseInt(sdata, 16, 64)
|
||
x = int16(x1)
|
||
} else if strings.HasPrefix(sdata, "0") {
|
||
x1, err = strconv.ParseInt(sdata, 8, 64)
|
||
x = int16(x1)
|
||
} else {
|
||
x1, err = strconv.ParseInt(sdata, 10, 64)
|
||
x = int16(x1)
|
||
}
|
||
if err != nil {
|
||
return fmt.Errorf("arg %v as int: %s", key, err.Error())
|
||
}
|
||
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
|
||
// case "*SomeStruct":
|
||
case reflect.Struct:
|
||
switch fieldType {
|
||
// case "*.time.Time":
|
||
case core.PtrTimeType:
|
||
x, err := session.byte2Time(col, data)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
v = x
|
||
fieldValue.Set(reflect.ValueOf(&x))
|
||
default:
|
||
if session.Statement.UseCascade {
|
||
structInter := reflect.New(fieldType.Elem())
|
||
table := session.Engine.autoMapType(structInter.Elem())
|
||
if table != nil {
|
||
if len(table.PrimaryKeys) > 1 {
|
||
panic("unsupported composited primary key cascade")
|
||
}
|
||
var pk = make(core.PK, len(table.PrimaryKeys))
|
||
var err error
|
||
rawValueType := table.ColumnType(table.PKColumns()[0].FieldName)
|
||
pk[0], err = str2PK(string(data), rawValueType)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
|
||
if !isPKZero(pk) {
|
||
// !nashtsai! TODO for hasOne relationship, it's preferred to use join query for eager fetch
|
||
// however, also need to consider adding a 'lazy' attribute to xorm tag which allow hasOne
|
||
// property to be fetched lazily
|
||
newsession := session.Engine.NewSession()
|
||
defer newsession.Close()
|
||
has, err := newsession.Id(pk).NoCascade().Get(structInter.Interface())
|
||
if err != nil {
|
||
return err
|
||
}
|
||
if has {
|
||
v = structInter.Interface()
|
||
fieldValue.Set(reflect.ValueOf(v))
|
||
} else {
|
||
return errors.New("cascade obj is not exist")
|
||
}
|
||
}
|
||
}
|
||
} else {
|
||
return fmt.Errorf("unsupported struct type in Scan: %s", fieldValue.Type().String())
|
||
}
|
||
}
|
||
default:
|
||
return fmt.Errorf("unsupported type in Scan: %s", fieldValue.Type().String())
|
||
}
|
||
default:
|
||
return fmt.Errorf("unsupported type in Scan: %s", fieldValue.Type().String())
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
// convert a field value of a struct to interface for put into db
|
||
func (session *Session) value2Interface(col *core.Column, fieldValue reflect.Value) (interface{}, error) {
|
||
if fieldValue.CanAddr() {
|
||
if fieldConvert, ok := fieldValue.Addr().Interface().(core.Conversion); ok {
|
||
data, err := fieldConvert.ToDB()
|
||
if err != nil {
|
||
return 0, err
|
||
}
|
||
if col.SQLType.IsBlob() {
|
||
return data, nil
|
||
}
|
||
return string(data), nil
|
||
}
|
||
}
|
||
|
||
if fieldConvert, ok := fieldValue.Interface().(core.Conversion); ok {
|
||
data, err := fieldConvert.ToDB()
|
||
if err != nil {
|
||
return 0, err
|
||
}
|
||
if col.SQLType.IsBlob() {
|
||
return data, nil
|
||
}
|
||
return string(data), nil
|
||
}
|
||
|
||
fieldType := fieldValue.Type()
|
||
k := fieldType.Kind()
|
||
if k == reflect.Ptr {
|
||
if fieldValue.IsNil() {
|
||
return nil, nil
|
||
} else if !fieldValue.IsValid() {
|
||
session.Engine.logger.Warn("the field[", col.FieldName, "] is invalid")
|
||
return nil, nil
|
||
} else {
|
||
// !nashtsai! deference pointer type to instance type
|
||
fieldValue = fieldValue.Elem()
|
||
fieldType = fieldValue.Type()
|
||
k = fieldType.Kind()
|
||
}
|
||
}
|
||
|
||
switch k {
|
||
case reflect.Bool:
|
||
return fieldValue.Bool(), nil
|
||
case reflect.String:
|
||
return fieldValue.String(), nil
|
||
case reflect.Struct:
|
||
if fieldType.ConvertibleTo(core.TimeType) {
|
||
t := fieldValue.Convert(core.TimeType).Interface().(time.Time)
|
||
if session.Engine.dialect.DBType() == core.MSSQL {
|
||
if t.IsZero() {
|
||
return nil, nil
|
||
}
|
||
}
|
||
tf := session.Engine.FormatTime(col.SQLType.Name, t)
|
||
return tf, nil
|
||
}
|
||
|
||
if !col.SQLType.IsJson() {
|
||
// !<winxxp>! 增加支持driver.Valuer接口的结构，如sql.NullString
|
||
if v, ok := fieldValue.Interface().(driver.Valuer); ok {
|
||
return v.Value()
|
||
}
|
||
|
||
fieldTable := session.Engine.autoMapType(fieldValue)
|
||
if len(fieldTable.PrimaryKeys) == 1 {
|
||
pkField := reflect.Indirect(fieldValue).FieldByName(fieldTable.PKColumns()[0].FieldName)
|
||
return pkField.Interface(), nil
|
||
}
|
||
return 0, fmt.Errorf("no primary key for col %v", col.Name)
|
||
}
|
||
|
||
if col.SQLType.IsText() {
|
||
bytes, err := json.Marshal(fieldValue.Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return 0, err
|
||
}
|
||
return string(bytes), nil
|
||
} else if col.SQLType.IsBlob() {
|
||
bytes, err := json.Marshal(fieldValue.Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return 0, err
|
||
}
|
||
return bytes, nil
|
||
}
|
||
return nil, fmt.Errorf("Unsupported type %v", fieldValue.Type())
|
||
case reflect.Complex64, reflect.Complex128:
|
||
bytes, err := json.Marshal(fieldValue.Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return 0, err
|
||
}
|
||
return string(bytes), nil
|
||
case reflect.Array, reflect.Slice, reflect.Map:
|
||
if !fieldValue.IsValid() {
|
||
return fieldValue.Interface(), nil
|
||
}
|
||
|
||
if col.SQLType.IsText() {
|
||
bytes, err := json.Marshal(fieldValue.Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return 0, err
|
||
}
|
||
return string(bytes), nil
|
||
} else if col.SQLType.IsBlob() {
|
||
var bytes []byte
|
||
var err error
|
||
if (k == reflect.Array || k == reflect.Slice) &&
|
||
(fieldValue.Type().Elem().Kind() == reflect.Uint8) {
|
||
bytes = fieldValue.Bytes()
|
||
} else {
|
||
bytes, err = json.Marshal(fieldValue.Interface())
|
||
if err != nil {
|
||
session.Engine.logger.Error(err)
|
||
return 0, err
|
||
}
|
||
}
|
||
return bytes, nil
|
||
}
|
||
return nil, ErrUnSupportedType
|
||
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
|
||
return int64(fieldValue.Uint()), nil
|
||
default:
|
||
return fieldValue.Interface(), nil
|
||
}
|
||
}
|
||
|
||
// saveLastSQL stores executed query information
|
||
func (session *Session) saveLastSQL(sql string, args ...interface{}) {
|
||
session.lastSQL = sql
|
||
session.lastSQLArgs = args
|
||
session.Engine.logSQL(sql, args...)
|
||
}
|
||
|
||
// LastSQL returns last query information
|
||
func (session *Session) LastSQL() (string, []interface{}) {
|
||
return session.lastSQL, session.lastSQLArgs
|
||
}
|
||
|
||
// tbName get some table's table name
|
||
func (session *Session) tbNameNoSchema(table *core.Table) string {
|
||
if len(session.Statement.AltTableName) > 0 {
|
||
return session.Statement.AltTableName
|
||
}
|
||
|
||
return table.Name
|
||
}
|
||
|
||
// Unscoped always disable struct tag "deleted"
|
||
func (session *Session) Unscoped() *Session {
|
||
session.Statement.Unscoped()
|
||
return session
|
||
}
|