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1672 lines
49 KiB
1672 lines
49 KiB
// 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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|
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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 statement 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 parameters, it will use all the bool field of struct, or |
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// it will use parameters'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 parameters 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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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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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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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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} |
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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", table.Name, key) |
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return nil |
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} |
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return fieldValue |
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} |
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// Cell cell is a result of one column field |
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type Cell *interface{} |
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|
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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, |
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sliceValueSetFunc func(*reflect.Value)) error { |
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for rows.Next() { |
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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) |
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if err != nil { |
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return err |
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} |
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sliceValueSetFunc(&newValue) |
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} |
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return nil |
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} |
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|
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func (session *Session) row2Bean(rows *core.Rows, fields []string, fieldsCount int, bean interface{}) error { |
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dataStruct := rValue(bean) |
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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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|
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session.Statement.setRefValue(dataStruct) |
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|
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return session._row2Bean(rows, fields, fieldsCount, bean, &dataStruct, session.Statement.RefTable) |
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} |
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|
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func (session *Session) _row2Bean(rows *core.Rows, fields []string, fieldsCount int, bean interface{}, dataStruct *reflect.Value, table *core.Table) error { |
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scanResults := make([]interface{}, fieldsCount) |
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for i := 0; i < len(fields); i++ { |
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var cell interface{} |
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scanResults[i] = &cell |
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} |
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if err := rows.Scan(scanResults...); err != nil { |
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return err |
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} |
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|
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if b, hasBeforeSet := bean.(BeforeSetProcessor); hasBeforeSet { |
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for ii, key := range fields { |
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b.BeforeSet(key, Cell(scanResults[ii].(*interface{}))) |
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} |
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} |
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|
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defer func() { |
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if b, hasAfterSet := bean.(AfterSetProcessor); hasAfterSet { |
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for ii, key := range fields { |
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b.AfterSet(key, Cell(scanResults[ii].(*interface{}))) |
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} |
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} |
|
}() |
|
|
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var tempMap = make(map[string]int) |
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for ii, key := range fields { |
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var idx int |
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var ok bool |
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var lKey = strings.ToLower(key) |
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if idx, ok = tempMap[lKey]; !ok { |
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idx = 0 |
|
} else { |
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idx = idx + 1 |
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} |
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tempMap[lKey] = idx |
|
|
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if fieldValue := session.getField(dataStruct, key, table, idx); fieldValue != nil { |
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rawValue := reflect.Indirect(reflect.ValueOf(scanResults[ii])) |
|
|
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// if row is null then ignore |
|
if rawValue.Interface() == nil { |
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continue |
|
} |
|
|
|
if fieldValue.CanAddr() { |
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if structConvert, ok := fieldValue.Addr().Interface().(core.Conversion); ok { |
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if data, err := value2Bytes(&rawValue); err == nil { |
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structConvert.FromDB(data) |
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} else { |
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session.Engine.logger.Error(err) |
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} |
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continue |
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} |
|
} |
|
|
|
if _, ok := fieldValue.Interface().(core.Conversion); ok { |
|
if data, err := value2Bytes(&rawValue); err == nil { |
|
if fieldValue.Kind() == reflect.Ptr && fieldValue.IsNil() { |
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fieldValue.Set(reflect.New(fieldValue.Type().Elem())) |
|
} |
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fieldValue.Interface().(core.Conversion).FromDB(data) |
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} else { |
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session.Engine.logger.Error(err) |
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} |
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continue |
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} |
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|
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rawValueType := reflect.TypeOf(rawValue.Interface()) |
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vv := reflect.ValueOf(rawValue.Interface()) |
|
|
|
fieldType := fieldValue.Type() |
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hasAssigned := false |
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col := table.GetColumnIdx(key, idx) |
|
|
|
if col.SQLType.IsJson() { |
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var bs []byte |
|
if rawValueType.Kind() == reflect.String { |
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bs = []byte(vv.String()) |
|
} else if rawValueType.ConvertibleTo(core.BytesType) { |
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bs = vv.Bytes() |
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} else { |
|
return fmt.Errorf("unsupported database data type: %s %v", key, rawValueType.Kind()) |
|
} |
|
|
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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) |
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return err |
|
} |
|
} else { |
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x := reflect.New(fieldType) |
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err := json.Unmarshal(bs, x.Interface()) |
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if err != nil { |
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session.Engine.logger.Error(key, err) |
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return err |
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} |
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fieldValue.Set(x.Elem()) |
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} |
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} |
|
|
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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 causing 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 |
|
}
|
|
|