2115 lines
55 KiB
Go
2115 lines
55 KiB
Go
package xorm
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import (
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"database/sql"
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"encoding/json"
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"errors"
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"fmt"
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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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// Struct 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 *sql.DB
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Engine *Engine
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Tx *sql.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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}
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// Method Init reset the session as the init status.
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func (session *Session) Init() {
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session.Statement = Statement{Engine: session.Engine}
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session.Statement.Init()
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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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}
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// Method Close release the connection from pool
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func (session *Session) Close() {
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defer func() {
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if session.Db != nil {
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session.Engine.Pool.ReleaseDB(session.Engine, session.Db)
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session.Db = nil
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session.Tx = nil
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session.Init()
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}
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}()
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}
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// Method 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(querystring string, args ...interface{}) *Session {
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session.Statement.Sql(querystring, args...)
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return session
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}
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// Method Where provides custom query condition.
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func (session *Session) Where(querystring string, args ...interface{}) *Session {
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session.Statement.Where(querystring, args...)
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return session
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}
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// Method Where provides custom query condition.
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func (session *Session) And(querystring string, args ...interface{}) *Session {
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session.Statement.And(querystring, args...)
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return session
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}
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// Method Where provides custom query condition.
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func (session *Session) Or(querystring string, args ...interface{}) *Session {
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session.Statement.Or(querystring, args...)
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return session
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}
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// Method Id provides converting id as a query condition
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func (session *Session) Id(id int64) *Session {
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session.Statement.Id(id)
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return session
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}
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// Method 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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// Method 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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// Method 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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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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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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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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// Method 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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// Method 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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// Method 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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// Method 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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if session.Statement.OrderStr != "" {
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session.Statement.OrderStr += ", "
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}
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newColNames := col2NewCols(colNames...)
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sql := strings.Join(newColNames, session.Engine.Quote(" DESC, "))
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session.Statement.OrderStr += session.Engine.Quote(sql) + " DESC"
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return session
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}
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// Method 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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if session.Statement.OrderStr != "" {
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session.Statement.OrderStr += ", "
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}
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newColNames := col2NewCols(colNames...)
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sql := strings.Join(newColNames, session.Engine.Quote(" ASC, "))
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session.Statement.OrderStr += session.Engine.Quote(sql) + " ASC"
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return session
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}
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// Method 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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// Method StoreEngine is only avialble charset 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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// Method Cascade
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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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// Method 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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//The 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(join_operator, tablename, condition string) *Session {
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session.Statement.Join(join_operator, tablename, condition)
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return session
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}
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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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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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func (session *Session) newDb() error {
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if session.Db == nil {
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db, err := session.Engine.Pool.RetrieveDB(session.Engine)
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if err != nil {
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return err
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}
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session.Db = db
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}
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return nil
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}
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func (session *Session) Begin() error {
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err := session.newDb()
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if err != nil {
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return err
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}
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if session.IsAutoCommit {
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tx, err := session.Db.Begin()
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if err != nil {
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return err
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}
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session.IsAutoCommit = false
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session.IsCommitedOrRollbacked = false
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session.Tx = tx
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session.Engine.LogSQL("BEGIN TRANSACTION")
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}
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return nil
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}
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func (session *Session) Rollback() error {
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if !session.IsAutoCommit && !session.IsCommitedOrRollbacked {
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session.Engine.LogSQL("ROLL BACK")
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session.IsCommitedOrRollbacked = true
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return session.Tx.Rollback()
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}
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return nil
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}
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func (session *Session) Commit() error {
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if !session.IsAutoCommit && !session.IsCommitedOrRollbacked {
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session.Engine.LogSQL("COMMIT")
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session.IsCommitedOrRollbacked = true
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return session.Tx.Commit()
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}
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return nil
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}
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func (session *Session) scanMapIntoStruct(obj interface{}, objMap map[string][]byte) error {
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dataStruct := reflect.Indirect(reflect.ValueOf(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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table := session.Engine.autoMapType(rType(obj))
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for key, data := range objMap {
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if _, ok := table.Columns[key]; !ok {
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session.Engine.LogWarn("table %v's has not column %v.", table.Name, key)
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continue
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}
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col := table.Columns[key]
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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.LogError("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.LogWarn("table %v's column %v is not valid or cannot set",
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table.Name, 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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//Execute sql
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func (session *Session) innerExec(sql string, args ...interface{}) (sql.Result, error) {
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rs, err := session.Db.Prepare(sql)
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if err != nil {
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return nil, err
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}
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defer rs.Close()
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res, err := rs.Exec(args...)
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if err != nil {
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return nil, err
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}
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return res, nil
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}
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func (session *Session) exec(sql string, args ...interface{}) (sql.Result, error) {
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for _, filter := range session.Engine.Filters {
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sql = filter.Do(sql, session)
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}
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session.Engine.LogSQL(sql)
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session.Engine.LogSQL(args)
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if session.IsAutoCommit {
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return session.innerExec(sql, args...)
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}
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return session.Tx.Exec(sql, args...)
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}
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func (session *Session) Exec(sql string, args ...interface{}) (sql.Result, error) {
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err := session.newDb()
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if err != nil {
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return nil, err
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}
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defer session.Statement.Init()
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if session.IsAutoClose {
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defer session.Close()
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}
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return session.exec(sql, args...)
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}
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// this function create a table according a bean
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func (session *Session) CreateTable(bean interface{}) error {
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session.Statement.RefTable = session.Engine.autoMap(bean)
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err := session.newDb()
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if err != nil {
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return err
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}
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defer session.Statement.Init()
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if session.IsAutoClose {
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defer session.Close()
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}
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return session.createOneTable()
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}
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func (session *Session) CreateIndexes(bean interface{}) error {
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session.Statement.RefTable = session.Engine.autoMap(bean)
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err := session.newDb()
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if err != nil {
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return err
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}
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defer session.Statement.Init()
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if session.IsAutoClose {
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defer session.Close()
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}
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sqls := session.Statement.genIndexSQL()
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for _, sql := range sqls {
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_, err = session.exec(sql)
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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) CreateUniques(bean interface{}) error {
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session.Statement.RefTable = session.Engine.autoMap(bean)
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err := session.newDb()
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if err != nil {
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return err
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}
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defer session.Statement.Init()
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if session.IsAutoClose {
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defer session.Close()
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}
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sqls := session.Statement.genUniqueSQL()
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for _, sql := range sqls {
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_, err = session.exec(sql)
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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) createOneTable() error {
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sql := session.Statement.genCreateSQL()
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_, err := session.exec(sql)
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return err
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}
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func (session *Session) CreateAll() error {
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err := session.newDb()
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if err != nil {
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return err
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}
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defer session.Statement.Init()
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if session.IsAutoClose {
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defer session.Close()
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}
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for _, table := range session.Engine.Tables {
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session.Statement.RefTable = table
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err := session.createOneTable()
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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) DropIndexes(bean interface{}) error {
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err := session.newDb()
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if err != nil {
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return err
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}
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defer session.Statement.Init()
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if session.IsAutoClose {
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defer session.Close()
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}
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sqls := session.Statement.genDelIndexSQL()
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for _, sql := range sqls {
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_, err = session.exec(sql)
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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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// DropTable drop a table and all indexes of the table
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func (session *Session) DropTable(bean interface{}) error {
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err := session.newDb()
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if err != nil {
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return err
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}
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defer session.Statement.Init()
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if session.IsAutoClose {
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defer session.Close()
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}
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t := reflect.Indirect(reflect.ValueOf(bean)).Type()
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defer session.Statement.Init()
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if t.Kind() == reflect.String {
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session.Statement.AltTableName = bean.(string)
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} else if t.Kind() == reflect.Struct {
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session.Statement.RefTable = session.Engine.autoMap(bean)
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} else {
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return errors.New("Unsupported type")
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}
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sql := session.Statement.genDropSQL()
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_, err = session.exec(sql)
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return err
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}
|
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func (statement *Statement) convertIdSql(sql string) string {
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if statement.RefTable != nil {
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col := statement.RefTable.PKColumn()
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if col != nil {
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sqls := splitNNoCase(sql, "from", 2)
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if len(sqls) != 2 {
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return ""
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}
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newsql := fmt.Sprintf("SELECT %v.%v FROM %v", statement.Engine.Quote(statement.TableName()),
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statement.Engine.Quote(col.Name), sqls[1])
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return newsql
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}
|
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}
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return ""
|
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}
|
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|
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func (session *Session) cacheGet(bean interface{}, sql string, args ...interface{}) (has bool, err error) {
|
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if session.Statement.RefTable == nil || session.Statement.RefTable.PrimaryKey == "" {
|
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return false, ErrCacheFailed
|
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}
|
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for _, filter := range session.Engine.Filters {
|
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sql = filter.Do(sql, session)
|
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}
|
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newsql := session.Statement.convertIdSql(sql)
|
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if newsql == "" {
|
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return false, ErrCacheFailed
|
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}
|
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|
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cacher := session.Statement.RefTable.Cacher
|
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tableName := session.Statement.TableName()
|
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session.Engine.LogDebug("[xorm:cacheGet] find sql:", newsql, args)
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ids, err := getCacheSql(cacher, tableName, newsql, args)
|
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if err != nil {
|
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resultsSlice, err := session.query(newsql, args...)
|
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if err != nil {
|
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return false, err
|
|
}
|
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session.Engine.LogDebug("[xorm:cacheGet] query ids:", resultsSlice)
|
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ids = make([]int64, 0)
|
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if len(resultsSlice) > 0 {
|
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data := resultsSlice[0]
|
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var id int64
|
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if v, ok := data[session.Statement.RefTable.PrimaryKey]; !ok {
|
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return false, ErrCacheFailed
|
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} else {
|
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id, err = strconv.ParseInt(string(v), 10, 64)
|
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if err != nil {
|
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return false, err
|
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}
|
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}
|
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ids = append(ids, id)
|
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}
|
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session.Engine.LogDebug("[xorm:cacheGet] cache ids:", newsql, ids)
|
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err = putCacheSql(cacher, ids, tableName, newsql, args)
|
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if err != nil {
|
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return false, err
|
|
}
|
|
} else {
|
|
session.Engine.LogDebug("[xorm:cacheGet] cached sql:", newsql)
|
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}
|
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|
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if len(ids) > 0 {
|
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structValue := reflect.Indirect(reflect.ValueOf(bean))
|
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id := ids[0]
|
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session.Engine.LogDebug("[xorm:cacheGet] get bean:", tableName, id)
|
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cacheBean := cacher.GetBean(tableName, id)
|
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if cacheBean == nil {
|
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newSession := session.Engine.NewSession()
|
|
defer newSession.Close()
|
|
cacheBean = reflect.New(structValue.Type()).Interface()
|
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if session.Statement.AltTableName != "" {
|
|
has, err = newSession.Id(id).NoCache().Table(session.Statement.AltTableName).Get(cacheBean)
|
|
} else {
|
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has, err = newSession.Id(id).NoCache().Get(cacheBean)
|
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}
|
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if err != nil || !has {
|
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return has, err
|
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}
|
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|
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session.Engine.LogDebug("[xorm:cacheGet] cache bean:", tableName, id, cacheBean)
|
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cacher.PutBean(tableName, id, cacheBean)
|
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} else {
|
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session.Engine.LogDebug("[xorm:cacheGet] cached bean:", tableName, id, cacheBean)
|
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has = true
|
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}
|
|
structValue.Set(reflect.Indirect(reflect.ValueOf(cacheBean)))
|
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|
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return has, nil
|
|
}
|
|
return false, nil
|
|
}
|
|
|
|
func (session *Session) cacheFind(t reflect.Type, sql string, rowsSlicePtr interface{}, args ...interface{}) (err error) {
|
|
if session.Statement.RefTable == nil ||
|
|
session.Statement.RefTable.PrimaryKey == "" ||
|
|
indexNoCase(sql, "having") != -1 ||
|
|
indexNoCase(sql, "group by") != -1 {
|
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return ErrCacheFailed
|
|
}
|
|
|
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for _, filter := range session.Engine.Filters {
|
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sql = filter.Do(sql, session)
|
|
}
|
|
|
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newsql := session.Statement.convertIdSql(sql)
|
|
if newsql == "" {
|
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return ErrCacheFailed
|
|
}
|
|
|
|
table := session.Statement.RefTable
|
|
cacher := table.Cacher
|
|
ids, err := getCacheSql(cacher, session.Statement.TableName(), newsql, args)
|
|
if err != nil {
|
|
//session.Engine.LogError(err)
|
|
resultsSlice, err := session.query(newsql, args...)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// 查询数目太大，采用缓存将不是一个很好的方式。
|
|
if len(resultsSlice) > 500 {
|
|
session.Engine.LogDebug("[xorm:cacheFind] ids length %v > 500, no cache", len(resultsSlice))
|
|
return ErrCacheFailed
|
|
}
|
|
|
|
tableName := session.Statement.TableName()
|
|
ids = make([]int64, 0)
|
|
if len(resultsSlice) > 0 {
|
|
for _, data := range resultsSlice {
|
|
//fmt.Println(data)
|
|
var id int64
|
|
if v, ok := data[session.Statement.RefTable.PrimaryKey]; !ok {
|
|
return errors.New("no id")
|
|
} else {
|
|
id, err = strconv.ParseInt(string(v), 10, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
ids = append(ids, id)
|
|
}
|
|
}
|
|
session.Engine.LogDebug("[xorm:cacheFind] cache ids:", ids, tableName, newsql, args)
|
|
err = putCacheSql(cacher, ids, tableName, newsql, args)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
} else {
|
|
session.Engine.LogDebug("[xorm:cacheFind] cached sql:", newsql, args)
|
|
}
|
|
|
|
sliceValue := reflect.Indirect(reflect.ValueOf(rowsSlicePtr))
|
|
pkFieldName := session.Statement.RefTable.PKColumn().FieldName
|
|
|
|
ididxes := make(map[int64]int)
|
|
var ides []interface{} = make([]interface{}, 0)
|
|
var temps []interface{} = make([]interface{}, len(ids))
|
|
tableName := session.Statement.TableName()
|
|
for idx, id := range ids {
|
|
bean := cacher.GetBean(tableName, id)
|
|
if bean == nil {
|
|
ides = append(ides, id)
|
|
ididxes[id] = idx
|
|
} else {
|
|
session.Engine.LogDebug("[xorm:cacheFind] cached bean:", tableName, id, bean)
|
|
|
|
sid := reflect.Indirect(reflect.ValueOf(bean)).FieldByName(pkFieldName).Int()
|
|
if sid != id {
|
|
session.Engine.LogError("[xorm:cacheFind] error cache", id, sid, bean)
|
|
return ErrCacheFailed
|
|
}
|
|
temps[idx] = bean
|
|
}
|
|
}
|
|
|
|
if len(ides) > 0 {
|
|
newSession := session.Engine.NewSession()
|
|
defer newSession.Close()
|
|
|
|
slices := reflect.New(reflect.SliceOf(t))
|
|
beans := slices.Interface()
|
|
//beans := reflect.New(sliceValue.Type()).Interface()
|
|
//err = newSession.In("(id)", ides...).OrderBy(session.Statement.OrderStr).NoCache().Find(beans)
|
|
err = newSession.In("(id)", ides...).NoCache().Find(beans)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
vs := reflect.Indirect(reflect.ValueOf(beans))
|
|
for i := 0; i < vs.Len(); i++ {
|
|
rv := vs.Index(i)
|
|
if rv.Kind() != reflect.Ptr {
|
|
rv = rv.Addr()
|
|
}
|
|
bean := rv.Interface()
|
|
id := reflect.Indirect(reflect.ValueOf(bean)).FieldByName(pkFieldName).Int()
|
|
//bean := vs.Index(i).Addr().Interface()
|
|
temps[ididxes[id]] = bean
|
|
//temps[idxes[i]] = bean
|
|
session.Engine.LogDebug("[xorm:cacheFind] cache bean:", tableName, id, bean)
|
|
cacher.PutBean(tableName, id, bean)
|
|
}
|
|
}
|
|
|
|
for j := 0; j < len(temps); j++ {
|
|
bean := temps[j]
|
|
if bean == nil {
|
|
session.Engine.LogError("[xorm:cacheFind] cache error:", tableName, ides[j], bean)
|
|
return errors.New("cache error")
|
|
}
|
|
if sliceValue.Kind() == reflect.Slice {
|
|
if t.Kind() == reflect.Ptr {
|
|
sliceValue.Set(reflect.Append(sliceValue, reflect.ValueOf(bean)))
|
|
} else {
|
|
sliceValue.Set(reflect.Append(sliceValue, reflect.Indirect(reflect.ValueOf(bean))))
|
|
}
|
|
} else if sliceValue.Kind() == reflect.Map {
|
|
var key int64
|
|
if table.PrimaryKey != "" {
|
|
key = ids[j]
|
|
} else {
|
|
key = int64(j)
|
|
}
|
|
if t.Kind() == reflect.Ptr {
|
|
sliceValue.SetMapIndex(reflect.ValueOf(key), reflect.ValueOf(bean))
|
|
} else {
|
|
sliceValue.SetMapIndex(reflect.ValueOf(key), reflect.Indirect(reflect.ValueOf(bean)))
|
|
}
|
|
}
|
|
/*} else {
|
|
session.Engine.LogDebug("[xorm:cacheFind] cache delete:", tableName, ides[j])
|
|
cacher.DelBean(tableName, ids[j])
|
|
|
|
session.Engine.LogDebug("[xorm:cacheFind] cache clear:", tableName)
|
|
cacher.ClearIds(tableName)
|
|
}*/
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
type IterFunc func(idx int, bean interface{}) error
|
|
|
|
func (session *Session) Iterate(bean interface{}, fun IterFunc) error {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
|
|
var sql string
|
|
var args []interface{}
|
|
session.Statement.RefTable = session.Engine.autoMap(bean)
|
|
if session.Statement.RawSQL == "" {
|
|
sql, args = session.Statement.genGetSql(bean)
|
|
} else {
|
|
sql = session.Statement.RawSQL
|
|
args = session.Statement.RawParams
|
|
}
|
|
|
|
for _, filter := range session.Engine.Filters {
|
|
sql = filter.Do(sql, session)
|
|
}
|
|
|
|
session.Engine.LogSQL(sql)
|
|
session.Engine.LogSQL(args)
|
|
|
|
s, err := session.Db.Prepare(sql)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer s.Close()
|
|
rows, err := s.Query(args...)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer rows.Close()
|
|
|
|
fields, err := rows.Columns()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
t := reflect.Indirect(reflect.ValueOf(bean)).Type()
|
|
b := reflect.New(t).Interface()
|
|
i := 0
|
|
for rows.Next() {
|
|
result, err := row2map(rows, fields)
|
|
if err == nil {
|
|
err = session.scanMapIntoStruct(b, result)
|
|
}
|
|
if err == nil {
|
|
err = fun(i, b)
|
|
i = i + 1
|
|
}
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// get retrieve one record from database
|
|
func (session *Session) Get(bean interface{}) (bool, error) {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
|
|
session.Statement.Limit(1)
|
|
var sql string
|
|
var args []interface{}
|
|
session.Statement.RefTable = session.Engine.autoMap(bean)
|
|
if session.Statement.RawSQL == "" {
|
|
sql, args = session.Statement.genGetSql(bean)
|
|
} else {
|
|
sql = session.Statement.RawSQL
|
|
args = session.Statement.RawParams
|
|
}
|
|
|
|
if session.Statement.RefTable.Cacher != nil && session.Statement.UseCache {
|
|
has, err := session.cacheGet(bean, sql, args...)
|
|
if err != ErrCacheFailed {
|
|
return has, err
|
|
}
|
|
}
|
|
|
|
resultsSlice, err := session.query(sql, args...)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
if len(resultsSlice) < 1 {
|
|
return false, nil
|
|
}
|
|
|
|
err = session.scanMapIntoStruct(bean, resultsSlice[0])
|
|
if err != nil {
|
|
return true, err
|
|
}
|
|
if len(resultsSlice) == 1 {
|
|
return true, nil
|
|
} else {
|
|
return true, errors.New("More than one record")
|
|
}
|
|
}
|
|
|
|
func (session *Session) Count(bean interface{}) (int64, error) {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
|
|
var sql string
|
|
var args []interface{}
|
|
if session.Statement.RawSQL == "" {
|
|
sql, args = session.Statement.genCountSql(bean)
|
|
} else {
|
|
sql = session.Statement.RawSQL
|
|
args = session.Statement.RawParams
|
|
}
|
|
|
|
resultsSlice, err := session.query(sql, args...)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
var total int64 = 0
|
|
if len(resultsSlice) > 0 {
|
|
results := resultsSlice[0]
|
|
for _, value := range results {
|
|
total, err = strconv.ParseInt(string(value), 10, 64)
|
|
break
|
|
}
|
|
}
|
|
|
|
return int64(total), err
|
|
}
|
|
|
|
func (session *Session) Find(rowsSlicePtr interface{}, condiBean ...interface{}) error {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
|
|
sliceValue := reflect.Indirect(reflect.ValueOf(rowsSlicePtr))
|
|
if sliceValue.Kind() != reflect.Slice && sliceValue.Kind() != reflect.Map {
|
|
return errors.New("needs a pointer to a slice or a map")
|
|
}
|
|
|
|
sliceElementType := sliceValue.Type().Elem()
|
|
var table *Table
|
|
if session.Statement.RefTable == nil {
|
|
if sliceElementType.Kind() == reflect.Ptr {
|
|
if sliceElementType.Elem().Kind() == reflect.Struct {
|
|
table = session.Engine.autoMapType(sliceElementType.Elem())
|
|
} else {
|
|
return errors.New("slice type")
|
|
}
|
|
} else if sliceElementType.Kind() == reflect.Struct {
|
|
table = session.Engine.autoMapType(sliceElementType)
|
|
} else {
|
|
return errors.New("slice type")
|
|
}
|
|
session.Statement.RefTable = table
|
|
} else {
|
|
table = session.Statement.RefTable
|
|
}
|
|
|
|
if len(condiBean) > 0 {
|
|
colNames, args := buildConditions(session.Engine, table, condiBean[0], true,
|
|
session.Statement.allUseBool, session.Statement.boolColumnMap)
|
|
session.Statement.ConditionStr = strings.Join(colNames, " AND ")
|
|
session.Statement.BeanArgs = args
|
|
}
|
|
|
|
var sql string
|
|
var args []interface{}
|
|
if session.Statement.RawSQL == "" {
|
|
var columnStr string = session.Statement.ColumnStr
|
|
if columnStr == "" {
|
|
columnStr = session.Statement.genColumnStr()
|
|
}
|
|
sql = session.Statement.genSelectSql(columnStr)
|
|
args = append(session.Statement.Params, session.Statement.BeanArgs...)
|
|
} else {
|
|
sql = session.Statement.RawSQL
|
|
args = session.Statement.RawParams
|
|
}
|
|
|
|
if table.Cacher != nil &&
|
|
session.Statement.UseCache &&
|
|
!session.Statement.IsDistinct {
|
|
err = session.cacheFind(sliceElementType, sql, rowsSlicePtr, args...)
|
|
if err != ErrCacheFailed {
|
|
return err
|
|
}
|
|
session.Engine.LogWarn("Cache Find Failed")
|
|
}
|
|
|
|
resultsSlice, err := session.query(sql, args...)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for i, results := range resultsSlice {
|
|
var newValue reflect.Value
|
|
if sliceElementType.Kind() == reflect.Ptr {
|
|
newValue = reflect.New(sliceElementType.Elem())
|
|
} else {
|
|
newValue = reflect.New(sliceElementType)
|
|
}
|
|
err := session.scanMapIntoStruct(newValue.Interface(), results)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if sliceValue.Kind() == reflect.Slice {
|
|
if sliceElementType.Kind() == reflect.Ptr {
|
|
sliceValue.Set(reflect.Append(sliceValue, reflect.ValueOf(newValue.Interface())))
|
|
} else {
|
|
sliceValue.Set(reflect.Append(sliceValue, reflect.Indirect(reflect.ValueOf(newValue.Interface()))))
|
|
}
|
|
} else if sliceValue.Kind() == reflect.Map {
|
|
var key int64
|
|
if table.PrimaryKey != "" {
|
|
x, err := strconv.ParseInt(string(results[table.PrimaryKey]), 10, 64)
|
|
if err != nil {
|
|
return errors.New("pk " + table.PrimaryKey + " as int64: " + err.Error())
|
|
}
|
|
key = x
|
|
} else {
|
|
key = int64(i)
|
|
}
|
|
if sliceElementType.Kind() == reflect.Ptr {
|
|
sliceValue.SetMapIndex(reflect.ValueOf(key), reflect.ValueOf(newValue.Interface()))
|
|
} else {
|
|
sliceValue.SetMapIndex(reflect.ValueOf(key), reflect.Indirect(reflect.ValueOf(newValue.Interface())))
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// test if database is ok
|
|
func (session *Session) Ping() error {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
|
|
return session.Db.Ping()
|
|
}
|
|
|
|
func (session *Session) isColumnExist(tableName, colName string) (bool, error) {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
sql, args := session.Engine.dialect.ColumnCheckSql(tableName, colName)
|
|
results, err := session.query(sql, args...)
|
|
return len(results) > 0, err
|
|
}
|
|
|
|
func (session *Session) isTableExist(tableName string) (bool, error) {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
sql, args := session.Engine.dialect.TableCheckSql(tableName)
|
|
results, err := session.query(sql, args...)
|
|
return len(results) > 0, err
|
|
}
|
|
|
|
func (session *Session) isIndexExist(tableName, idxName string, unique bool) (bool, error) {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
var idx string
|
|
if unique {
|
|
idx = uniqueName(tableName, idxName)
|
|
} else {
|
|
idx = indexName(tableName, idxName)
|
|
}
|
|
sql, args := session.Engine.dialect.IndexCheckSql(tableName, idx)
|
|
results, err := session.query(sql, args...)
|
|
return len(results) > 0, err
|
|
}
|
|
|
|
func sliceEq(left, right []string) bool {
|
|
for _, l := range left {
|
|
var find bool
|
|
for _, r := range right {
|
|
if l == r {
|
|
find = true
|
|
break
|
|
}
|
|
}
|
|
if !find {
|
|
return false
|
|
}
|
|
}
|
|
|
|
return true
|
|
}
|
|
|
|
// find if index is exist according cols
|
|
func (session *Session) isIndexExist2(tableName string, cols []string, unique bool) (bool, error) {
|
|
indexes, err := session.Engine.dialect.GetIndexes(tableName)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
for _, index := range indexes {
|
|
//fmt.Println(i, "new:", cols, "-old:", index.Cols)
|
|
if sliceEq(index.Cols, cols) {
|
|
if unique {
|
|
return index.Type == UniqueType, nil
|
|
} else {
|
|
return index.Type == IndexType, nil
|
|
}
|
|
}
|
|
}
|
|
return false, nil
|
|
}
|
|
|
|
func (session *Session) addColumn(colName string) error {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
//fmt.Println(session.Statement.RefTable)
|
|
col := session.Statement.RefTable.Columns[colName]
|
|
sql, args := session.Statement.genAddColumnStr(col)
|
|
_, err = session.exec(sql, args...)
|
|
return err
|
|
}
|
|
|
|
func (session *Session) addIndex(tableName, idxName string) error {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
//fmt.Println(idxName)
|
|
cols := session.Statement.RefTable.Indexes[idxName].Cols
|
|
sql, args := session.Statement.genAddIndexStr(indexName(tableName, idxName), cols)
|
|
_, err = session.exec(sql, args...)
|
|
return err
|
|
}
|
|
|
|
func (session *Session) addUnique(tableName, uqeName string) error {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
//fmt.Println(uqeName, session.Statement.RefTable.Uniques)
|
|
cols := session.Statement.RefTable.Indexes[uqeName].Cols
|
|
sql, args := session.Statement.genAddUniqueStr(uniqueName(tableName, uqeName), cols)
|
|
_, err = session.exec(sql, args...)
|
|
return err
|
|
}
|
|
|
|
func (session *Session) DropAll() error {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
|
|
for _, table := range session.Engine.Tables {
|
|
session.Statement.Init()
|
|
session.Statement.RefTable = table
|
|
sql := session.Statement.genDropSQL()
|
|
_, err := session.exec(sql)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func row2map(rows *sql.Rows, fields []string) (resultsMap map[string][]byte, err error) {
|
|
result := make(map[string][]byte)
|
|
var scanResultContainers []interface{}
|
|
for i := 0; i < len(fields); i++ {
|
|
var scanResultContainer interface{}
|
|
scanResultContainers = append(scanResultContainers, &scanResultContainer)
|
|
}
|
|
if err := rows.Scan(scanResultContainers...); err != nil {
|
|
return nil, err
|
|
}
|
|
for ii, key := range fields {
|
|
rawValue := reflect.Indirect(reflect.ValueOf(scanResultContainers[ii]))
|
|
|
|
//if row is null then ignore
|
|
if rawValue.Interface() == nil {
|
|
//fmt.Println("ignore ...", key, rawValue)
|
|
continue
|
|
}
|
|
aa := reflect.TypeOf(rawValue.Interface())
|
|
vv := reflect.ValueOf(rawValue.Interface())
|
|
var str string
|
|
switch aa.Kind() {
|
|
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
|
str = strconv.FormatInt(vv.Int(), 10)
|
|
result[key] = []byte(str)
|
|
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
|
str = strconv.FormatUint(vv.Uint(), 10)
|
|
result[key] = []byte(str)
|
|
case reflect.Float32, reflect.Float64:
|
|
str = strconv.FormatFloat(vv.Float(), 'f', -1, 64)
|
|
result[key] = []byte(str)
|
|
case reflect.String:
|
|
str = vv.String()
|
|
result[key] = []byte(str)
|
|
case reflect.Array, reflect.Slice:
|
|
switch aa.Elem().Kind() {
|
|
case reflect.Uint8:
|
|
result[key] = rawValue.Interface().([]byte)
|
|
str = string(result[key])
|
|
default:
|
|
return nil, errors.New(fmt.Sprintf("Unsupported struct type %v", vv.Type().Name()))
|
|
}
|
|
//时间类型
|
|
case reflect.Struct:
|
|
if aa.String() == "time.Time" {
|
|
str = rawValue.Interface().(time.Time).Format(time.RFC3339Nano)
|
|
result[key] = []byte(str)
|
|
} else {
|
|
return nil, errors.New(fmt.Sprintf("Unsupported struct type %v", vv.Type().Name()))
|
|
}
|
|
case reflect.Bool:
|
|
str = strconv.FormatBool(vv.Bool())
|
|
result[key] = []byte(str)
|
|
case reflect.Complex128, reflect.Complex64:
|
|
str = fmt.Sprintf("%v", vv.Complex())
|
|
result[key] = []byte(str)
|
|
/* TODO: unsupported types below
|
|
case reflect.Map:
|
|
case reflect.Ptr:
|
|
case reflect.Uintptr:
|
|
case reflect.UnsafePointer:
|
|
case reflect.Chan, reflect.Func, reflect.Interface:
|
|
*/
|
|
default:
|
|
return nil, errors.New(fmt.Sprintf("Unsupported struct type %v", vv.Type().Name()))
|
|
}
|
|
}
|
|
return result, nil
|
|
}
|
|
|
|
func rows2maps(rows *sql.Rows) (resultsSlice []map[string][]byte, err error) {
|
|
fields, err := rows.Columns()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
for rows.Next() {
|
|
result, err := row2map(rows, fields)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
resultsSlice = append(resultsSlice, result)
|
|
}
|
|
|
|
return resultsSlice, nil
|
|
}
|
|
|
|
func query(db *sql.DB, sql string, params ...interface{}) (resultsSlice []map[string][]byte, err error) {
|
|
s, err := db.Prepare(sql)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer s.Close()
|
|
rows, err := s.Query(params...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer rows.Close()
|
|
|
|
return rows2maps(rows)
|
|
}
|
|
|
|
func (session *Session) query(sql string, paramStr ...interface{}) (resultsSlice []map[string][]byte, err error) {
|
|
for _, filter := range session.Engine.Filters {
|
|
sql = filter.Do(sql, session)
|
|
}
|
|
|
|
session.Engine.LogSQL(sql)
|
|
session.Engine.LogSQL(paramStr)
|
|
|
|
return query(session.Db, sql, paramStr...)
|
|
}
|
|
|
|
func (session *Session) Query(sql string, paramStr ...interface{}) (resultsSlice []map[string][]byte, err error) {
|
|
err = session.newDb()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
|
|
return session.query(sql, paramStr...)
|
|
}
|
|
|
|
// insert one or more beans
|
|
func (session *Session) Insert(beans ...interface{}) (int64, error) {
|
|
var affected int64 = 0
|
|
var err error = nil
|
|
err = session.newDb()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
|
|
for _, bean := range beans {
|
|
sliceValue := reflect.Indirect(reflect.ValueOf(bean))
|
|
if sliceValue.Kind() == reflect.Slice {
|
|
if session.Engine.SupportInsertMany() {
|
|
cnt, err := session.innerInsertMulti(bean)
|
|
if err != nil {
|
|
return affected, err
|
|
}
|
|
affected += cnt
|
|
} else {
|
|
size := sliceValue.Len()
|
|
for i := 0; i < size; i++ {
|
|
cnt, err := session.innerInsert(sliceValue.Index(i).Interface())
|
|
if err != nil {
|
|
return affected, err
|
|
}
|
|
affected += cnt
|
|
}
|
|
}
|
|
} else {
|
|
cnt, err := session.innerInsert(bean)
|
|
if err != nil {
|
|
return affected, err
|
|
}
|
|
affected += cnt
|
|
}
|
|
}
|
|
|
|
return affected, err
|
|
}
|
|
|
|
func (session *Session) innerInsertMulti(rowsSlicePtr interface{}) (int64, error) {
|
|
sliceValue := reflect.Indirect(reflect.ValueOf(rowsSlicePtr))
|
|
if sliceValue.Kind() != reflect.Slice {
|
|
return 0, errors.New("needs a pointer to a slice")
|
|
}
|
|
|
|
bean := sliceValue.Index(0).Interface()
|
|
sliceElementType := rType(bean)
|
|
|
|
table := session.Engine.autoMapType(sliceElementType)
|
|
session.Statement.RefTable = table
|
|
|
|
size := sliceValue.Len()
|
|
|
|
colNames := make([]string, 0)
|
|
colMultiPlaces := make([]string, 0)
|
|
var args = make([]interface{}, 0)
|
|
cols := make([]*Column, 0)
|
|
|
|
for i := 0; i < size; i++ {
|
|
elemValue := sliceValue.Index(i).Interface()
|
|
colPlaces := make([]string, 0)
|
|
|
|
if i == 0 {
|
|
for _, col := range table.Columns {
|
|
fieldValue := reflect.Indirect(reflect.ValueOf(elemValue)).FieldByName(col.FieldName)
|
|
if col.IsAutoIncrement && fieldValue.Int() == 0 {
|
|
continue
|
|
}
|
|
if col.MapType == ONLYFROMDB {
|
|
continue
|
|
}
|
|
if session.Statement.ColumnStr != "" {
|
|
if _, ok := session.Statement.columnMap[col.Name]; !ok {
|
|
continue
|
|
}
|
|
}
|
|
if (col.IsCreated || col.IsUpdated) && session.Statement.UseAutoTime {
|
|
args = append(args, time.Now())
|
|
} else {
|
|
arg, err := session.value2Interface(col, fieldValue)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
args = append(args, arg)
|
|
}
|
|
|
|
colNames = append(colNames, col.Name)
|
|
cols = append(cols, col)
|
|
colPlaces = append(colPlaces, "?")
|
|
}
|
|
} else {
|
|
for _, col := range cols {
|
|
fieldValue := reflect.Indirect(reflect.ValueOf(elemValue)).FieldByName(col.FieldName)
|
|
if col.IsAutoIncrement && fieldValue.Int() == 0 {
|
|
continue
|
|
}
|
|
if col.MapType == ONLYFROMDB {
|
|
continue
|
|
}
|
|
if session.Statement.ColumnStr != "" {
|
|
if _, ok := session.Statement.columnMap[col.Name]; !ok {
|
|
continue
|
|
}
|
|
}
|
|
if (col.IsCreated || col.IsUpdated) && session.Statement.UseAutoTime {
|
|
args = append(args, time.Now())
|
|
} else {
|
|
arg, err := session.value2Interface(col, fieldValue)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
args = append(args, arg)
|
|
}
|
|
|
|
colPlaces = append(colPlaces, "?")
|
|
}
|
|
}
|
|
colMultiPlaces = append(colMultiPlaces, strings.Join(colPlaces, ", "))
|
|
}
|
|
|
|
statement := fmt.Sprintf("INSERT INTO %v%v%v (%v%v%v) VALUES (%v)",
|
|
session.Engine.QuoteStr(),
|
|
session.Statement.TableName(),
|
|
session.Engine.QuoteStr(),
|
|
session.Engine.QuoteStr(),
|
|
strings.Join(colNames, session.Engine.QuoteStr()+", "+session.Engine.QuoteStr()),
|
|
session.Engine.QuoteStr(),
|
|
strings.Join(colMultiPlaces, "),("))
|
|
|
|
res, err := session.exec(statement, args...)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
if table.Cacher != nil && session.Statement.UseCache {
|
|
session.cacheInsert(session.Statement.TableName())
|
|
}
|
|
|
|
return res.RowsAffected()
|
|
}
|
|
|
|
func (session *Session) InsertMulti(rowsSlicePtr interface{}) (int64, error) {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
|
|
return session.innerInsertMulti(rowsSlicePtr)
|
|
}
|
|
|
|
// convert a db data([]byte) to a field value
|
|
func (session *Session) bytes2Value(col *Column, fieldValue *reflect.Value, data []byte) error {
|
|
if structConvert, ok := fieldValue.Addr().Interface().(Conversion); ok {
|
|
return structConvert.FromDB(data)
|
|
}
|
|
|
|
var v interface{}
|
|
key := col.Name
|
|
fieldType := fieldValue.Type()
|
|
//fmt.Println("column name:", key, ", fieldType:", fieldType.String())
|
|
switch fieldType.Kind() {
|
|
case reflect.Complex64, reflect.Complex128:
|
|
x := reflect.New(fieldType)
|
|
|
|
err := json.Unmarshal(data, x.Interface())
|
|
if err != nil {
|
|
session.Engine.LogSQL(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)
|
|
err := json.Unmarshal(data, x.Interface())
|
|
if err != nil {
|
|
session.Engine.LogSQL(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)
|
|
err := json.Unmarshal(data, x.Interface())
|
|
if err != nil {
|
|
session.Engine.LogSQL(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 errors.New("arg " + key + " as bool: " + 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 == Bit &&
|
|
strings.Contains(session.Engine.DriverName, "mysql") {
|
|
if len(data) == 1 {
|
|
x = int64(data[0])
|
|
} else {
|
|
x = 0
|
|
}
|
|
//fmt.Println("######", x, data)
|
|
} 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 errors.New("arg " + key + " as int: " + err.Error())
|
|
}
|
|
fieldValue.SetInt(x)
|
|
case reflect.Float32, reflect.Float64:
|
|
x, err := strconv.ParseFloat(string(data), 64)
|
|
if err != nil {
|
|
return errors.New("arg " + key + " as float64: " + 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 errors.New("arg " + key + " as int: " + err.Error())
|
|
}
|
|
fieldValue.SetUint(x)
|
|
//Now only support Time type
|
|
case reflect.Struct:
|
|
if fieldValue.Type().String() == "time.Time" {
|
|
sdata := string(data)
|
|
var x time.Time
|
|
var err error
|
|
// time stamp
|
|
if !strings.ContainsAny(sdata, "- :") {
|
|
sd, err := strconv.ParseInt(sdata, 10, 64)
|
|
if err == nil {
|
|
x = time.Unix(0, sd)
|
|
}
|
|
} else if len(sdata) > 19 {
|
|
x, err = time.Parse(time.RFC3339Nano, sdata)
|
|
} else if len(sdata) == 19 {
|
|
x, err = time.Parse("2006-01-02 15:04:05", sdata)
|
|
} else if len(sdata) == 10 && sdata[4] == '-' && sdata[7] == '-' {
|
|
x, err = time.Parse("2006-01-02", sdata)
|
|
} else if col.SQLType.Name == Time {
|
|
if len(sdata) > 8 {
|
|
sdata = sdata[len(sdata)-8:]
|
|
}
|
|
st := fmt.Sprintf("2006-01-02 %v", sdata)
|
|
x, err = time.Parse("2006-01-02 15:04:05", st)
|
|
} else {
|
|
return errors.New(fmt.Sprintf("unsupported time format %v", string(data)))
|
|
}
|
|
if err != nil {
|
|
return errors.New(fmt.Sprintf("unsupported time format %v: %v", string(data), err))
|
|
}
|
|
|
|
v = x
|
|
fieldValue.Set(reflect.ValueOf(v))
|
|
} else if session.Statement.UseCascade {
|
|
table := session.Engine.autoMapType(fieldValue.Type())
|
|
if table != nil {
|
|
x, err := strconv.ParseInt(string(data), 10, 64)
|
|
if err != nil {
|
|
return errors.New("arg " + key + " as int: " + err.Error())
|
|
}
|
|
if x != 0 {
|
|
structInter := reflect.New(fieldValue.Type())
|
|
newsession := session.Engine.NewSession()
|
|
defer newsession.Close()
|
|
has, err := newsession.Id(x).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 errors.New("unsupported struct type in Scan: " + fieldValue.Type().String())
|
|
}
|
|
}
|
|
default:
|
|
return errors.New("unsupported type in Scan: " + reflect.TypeOf(v).String())
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// convert a field value of a struct to interface for put into db
|
|
func (session *Session) value2Interface(col *Column, fieldValue reflect.Value) (interface{}, error) {
|
|
if fieldValue.CanAddr() {
|
|
if fieldConvert, ok := fieldValue.Addr().Interface().(Conversion); ok {
|
|
data, err := fieldConvert.ToDB()
|
|
if err != nil {
|
|
return 0, err
|
|
} else {
|
|
return string(data), nil
|
|
}
|
|
}
|
|
}
|
|
|
|
k := fieldValue.Type().Kind()
|
|
switch k {
|
|
case reflect.Bool:
|
|
if fieldValue.Bool() {
|
|
return 1, nil
|
|
} else {
|
|
return 0, nil
|
|
}
|
|
case reflect.String:
|
|
return fieldValue.String(), nil
|
|
case reflect.Struct:
|
|
if fieldValue.Type().String() == "time.Time" {
|
|
if col.SQLType.Name == Time {
|
|
//s := fieldValue.Interface().(time.Time).Format("2006-01-02 15:04:05 -0700")
|
|
s := fieldValue.Interface().(time.Time).Format(time.RFC3339)
|
|
return s[11:19], nil
|
|
} else if col.SQLType.Name == Date {
|
|
return fieldValue.Interface().(time.Time).Format("2006-01-02"), nil
|
|
}
|
|
return fieldValue.Interface(), nil
|
|
}
|
|
if fieldTable, ok := session.Engine.Tables[fieldValue.Type()]; ok {
|
|
if fieldTable.PrimaryKey != "" {
|
|
pkField := reflect.Indirect(fieldValue).FieldByName(fieldTable.PKColumn().FieldName)
|
|
return pkField.Interface(), nil
|
|
} else {
|
|
return 0, errors.New("no primary key")
|
|
}
|
|
} else {
|
|
return 0, errors.New(fmt.Sprintf("Unsupported type %v", fieldValue.Type()))
|
|
}
|
|
case reflect.Complex64, reflect.Complex128:
|
|
bytes, err := json.Marshal(fieldValue.Interface())
|
|
if err != nil {
|
|
session.Engine.LogSQL(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.LogSQL(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.LogSQL(err)
|
|
return 0, err
|
|
}
|
|
}
|
|
return bytes, nil
|
|
} else {
|
|
return nil, ErrUnSupportedType
|
|
}
|
|
default:
|
|
return fieldValue.Interface(), nil
|
|
}
|
|
}
|
|
|
|
func (session *Session) innerInsert(bean interface{}) (int64, error) {
|
|
table := session.Engine.autoMap(bean)
|
|
session.Statement.RefTable = table
|
|
|
|
colNames, args, err := table.genCols(session, bean, false, false)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
colPlaces := strings.Repeat("?, ", len(colNames))
|
|
colPlaces = colPlaces[0 : len(colPlaces)-2]
|
|
|
|
sql := fmt.Sprintf("INSERT INTO %v%v%v (%v%v%v) VALUES (%v)",
|
|
session.Engine.QuoteStr(),
|
|
session.Statement.TableName(),
|
|
session.Engine.QuoteStr(),
|
|
session.Engine.QuoteStr(),
|
|
strings.Join(colNames, session.Engine.Quote(", ")),
|
|
session.Engine.QuoteStr(),
|
|
colPlaces)
|
|
|
|
// for postgres, many of them didn't implement lastInsertId, so we should
|
|
// implemented it ourself.
|
|
if session.Engine.DriverName != POSTGRES || table.PrimaryKey == "" {
|
|
res, err := session.exec(sql, args...)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
if table.Cacher != nil && session.Statement.UseCache {
|
|
session.cacheInsert(session.Statement.TableName())
|
|
}
|
|
|
|
if table.PrimaryKey == "" {
|
|
return res.RowsAffected()
|
|
}
|
|
|
|
var id int64 = 0
|
|
id, err = res.LastInsertId()
|
|
if err != nil || id <= 0 {
|
|
return res.RowsAffected()
|
|
}
|
|
|
|
pkValue := table.PKColumn().ValueOf(bean)
|
|
if !pkValue.IsValid() || pkValue.Int() != 0 || !pkValue.CanSet() {
|
|
return res.RowsAffected()
|
|
}
|
|
|
|
var v interface{} = id
|
|
switch pkValue.Type().Kind() {
|
|
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int:
|
|
v = int(id)
|
|
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
|
|
v = uint(id)
|
|
}
|
|
pkValue.Set(reflect.ValueOf(v))
|
|
|
|
return res.RowsAffected()
|
|
} else {
|
|
sql = sql + " RETURNING (id)"
|
|
res, err := session.query(sql, args...)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
if table.Cacher != nil && session.Statement.UseCache {
|
|
session.cacheInsert(session.Statement.TableName())
|
|
}
|
|
|
|
if len(res) < 1 {
|
|
return 0, errors.New("insert no error but not returned id")
|
|
}
|
|
|
|
idByte := res[0][table.PrimaryKey]
|
|
id, err := strconv.ParseInt(string(idByte), 10, 64)
|
|
if err != nil {
|
|
return 1, err
|
|
}
|
|
|
|
pkValue := table.PKColumn().ValueOf(bean)
|
|
if !pkValue.IsValid() || pkValue.Int() != 0 || !pkValue.CanSet() {
|
|
return 1, nil
|
|
}
|
|
|
|
var v interface{} = id
|
|
switch pkValue.Type().Kind() {
|
|
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int:
|
|
v = int(id)
|
|
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
|
|
v = uint(id)
|
|
}
|
|
pkValue.Set(reflect.ValueOf(v))
|
|
|
|
return 1, nil
|
|
}
|
|
}
|
|
|
|
// Method InsertOne insert only one struct into database as a record.
|
|
// The in parameter bean must a struct or a point to struct. The return
|
|
// parameter is lastInsertId and error
|
|
func (session *Session) InsertOne(bean interface{}) (int64, error) {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
|
|
return session.innerInsert(bean)
|
|
}
|
|
|
|
func (statement *Statement) convertUpdateSql(sql string) (string, string) {
|
|
if statement.RefTable == nil || statement.RefTable.PrimaryKey == "" {
|
|
return "", ""
|
|
}
|
|
sqls := splitNNoCase(sql, "where", 2)
|
|
if len(sqls) != 2 {
|
|
if len(sqls) == 1 {
|
|
return sqls[0], fmt.Sprintf("SELECT %v FROM %v",
|
|
statement.Engine.Quote(statement.RefTable.PrimaryKey),
|
|
statement.Engine.Quote(statement.RefTable.Name))
|
|
}
|
|
return "", ""
|
|
}
|
|
|
|
var whereStr = sqls[1]
|
|
|
|
//TODO: for postgres only, if any other database?
|
|
if strings.Contains(sqls[1], "$") {
|
|
dollers := strings.Split(sqls[1], "$")
|
|
whereStr = dollers[0]
|
|
for i, c := range dollers[1:] {
|
|
ccs := strings.SplitN(c, " ", 2)
|
|
whereStr += fmt.Sprintf("$%v %v", i+1, ccs[1])
|
|
}
|
|
}
|
|
|
|
return sqls[0], fmt.Sprintf("SELECT %v FROM %v WHERE %v",
|
|
statement.Engine.Quote(statement.RefTable.PrimaryKey), statement.Engine.Quote(statement.TableName()),
|
|
whereStr)
|
|
}
|
|
|
|
func (session *Session) cacheInsert(tables ...string) error {
|
|
if session.Statement.RefTable == nil || session.Statement.RefTable.PrimaryKey == "" {
|
|
return ErrCacheFailed
|
|
}
|
|
|
|
table := session.Statement.RefTable
|
|
cacher := table.Cacher
|
|
|
|
for _, t := range tables {
|
|
session.Engine.LogDebug("cache clear:", t)
|
|
cacher.ClearIds(t)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (session *Session) cacheUpdate(sql string, args ...interface{}) error {
|
|
if session.Statement.RefTable == nil || session.Statement.RefTable.PrimaryKey == "" {
|
|
return ErrCacheFailed
|
|
}
|
|
|
|
oldhead, newsql := session.Statement.convertUpdateSql(sql)
|
|
if newsql == "" {
|
|
return ErrCacheFailed
|
|
}
|
|
for _, filter := range session.Engine.Filters {
|
|
newsql = filter.Do(newsql, session)
|
|
}
|
|
session.Engine.LogDebug("[xorm:cacheUpdate] new sql", oldhead, newsql)
|
|
|
|
var nStart int
|
|
if len(args) > 0 {
|
|
if strings.Index(sql, "?") > -1 {
|
|
nStart = strings.Count(oldhead, "?")
|
|
} else {
|
|
// only for pq, TODO: if any other databse?
|
|
nStart = strings.Count(oldhead, "$")
|
|
}
|
|
}
|
|
table := session.Statement.RefTable
|
|
cacher := table.Cacher
|
|
tableName := session.Statement.TableName()
|
|
session.Engine.LogDebug("[xorm:cacheUpdate] get cache sql", newsql, args[nStart:])
|
|
ids, err := getCacheSql(cacher, tableName, newsql, args[nStart:])
|
|
if err != nil {
|
|
resultsSlice, err := session.query(newsql, args[nStart:]...)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
session.Engine.LogDebug("[xorm:cacheUpdate] find updated id", resultsSlice)
|
|
|
|
ids = make([]int64, 0)
|
|
if len(resultsSlice) > 0 {
|
|
for _, data := range resultsSlice {
|
|
var id int64
|
|
if v, ok := data[session.Statement.RefTable.PrimaryKey]; !ok {
|
|
return errors.New("no id")
|
|
} else {
|
|
id, err = strconv.ParseInt(string(v), 10, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
ids = append(ids, id)
|
|
}
|
|
}
|
|
} /*else {
|
|
session.Engine.LogDebug("[xorm:cacheUpdate] del cached sql:", tableName, newsql, args)
|
|
cacher.DelIds(tableName, genSqlKey(newsql, args))
|
|
}*/
|
|
|
|
for _, id := range ids {
|
|
if bean := cacher.GetBean(tableName, id); bean != nil {
|
|
sqls := splitNNoCase(sql, "where", 2)
|
|
if len(sqls) == 0 || len(sqls) > 2 {
|
|
return ErrCacheFailed
|
|
}
|
|
|
|
sqls = splitNNoCase(sqls[0], "set", 2)
|
|
if len(sqls) != 2 {
|
|
return ErrCacheFailed
|
|
}
|
|
kvs := strings.Split(strings.TrimSpace(sqls[1]), ",")
|
|
for idx, kv := range kvs {
|
|
sps := strings.SplitN(kv, "=", 2)
|
|
sps2 := strings.Split(sps[0], ".")
|
|
colName := sps2[len(sps2)-1]
|
|
if strings.Contains(colName, "`") {
|
|
colName = strings.TrimSpace(strings.Replace(colName, "`", "", -1))
|
|
} else if strings.Contains(colName, session.Engine.QuoteStr()) {
|
|
colName = strings.TrimSpace(strings.Replace(colName, session.Engine.QuoteStr(), "", -1))
|
|
} else {
|
|
session.Engine.LogDebug("[xorm:cacheUpdate] cannot find column", tableName, colName)
|
|
return ErrCacheFailed
|
|
}
|
|
|
|
if col, ok := table.Columns[colName]; ok {
|
|
fieldValue := col.ValueOf(bean)
|
|
session.Engine.LogDebug("[xorm:cacheUpdate] set bean field", bean, colName, fieldValue.Interface())
|
|
fieldValue.Set(reflect.ValueOf(args[idx]))
|
|
} else {
|
|
session.Engine.LogError("[xorm:cacheUpdate] ERROR: column %v is not table %v's",
|
|
colName, table.Name)
|
|
}
|
|
}
|
|
|
|
session.Engine.LogDebug("[xorm:cacheUpdate] update cache", tableName, id, bean)
|
|
cacher.PutBean(tableName, id, bean)
|
|
}
|
|
}
|
|
session.Engine.LogDebug("[xorm:cacheUpdate] clear cached table sql:", tableName)
|
|
cacher.ClearIds(tableName)
|
|
return nil
|
|
}
|
|
|
|
func (session *Session) Update(bean interface{}, condiBean ...interface{}) (int64, error) {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
|
|
t := rType(bean)
|
|
|
|
var colNames []string
|
|
var args []interface{}
|
|
var table *Table
|
|
|
|
if t.Kind() == reflect.Struct {
|
|
table = session.Engine.autoMap(bean)
|
|
session.Statement.RefTable = table
|
|
|
|
if session.Statement.ColumnStr == "" {
|
|
colNames, args = buildConditions(session.Engine, table, bean, false,
|
|
session.Statement.allUseBool, session.Statement.boolColumnMap)
|
|
} else {
|
|
colNames, args, err = table.genCols(session, bean, true, true)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
}
|
|
} else if t.Kind() == reflect.Map {
|
|
if session.Statement.RefTable == nil {
|
|
return 0, ErrTableNotFound
|
|
}
|
|
table = session.Statement.RefTable
|
|
colNames = make([]string, 0)
|
|
args = make([]interface{}, 0)
|
|
bValue := reflect.Indirect(reflect.ValueOf(bean))
|
|
|
|
for _, v := range bValue.MapKeys() {
|
|
colNames = append(colNames, session.Engine.Quote(v.String())+" = ?")
|
|
args = append(args, bValue.MapIndex(v).Interface())
|
|
}
|
|
} else {
|
|
return 0, ErrParamsType
|
|
}
|
|
|
|
if session.Statement.UseAutoTime && table.Updated != "" {
|
|
colNames = append(colNames, session.Engine.Quote(table.Updated)+" = ?")
|
|
args = append(args, time.Now())
|
|
}
|
|
|
|
var condiColNames []string
|
|
var condiArgs []interface{}
|
|
|
|
if len(condiBean) > 0 {
|
|
condiColNames, condiArgs = buildConditions(session.Engine, session.Statement.RefTable, condiBean[0], true,
|
|
session.Statement.allUseBool, session.Statement.boolColumnMap)
|
|
}
|
|
|
|
var condition = ""
|
|
st := session.Statement
|
|
defer session.Statement.Init()
|
|
if st.WhereStr != "" {
|
|
condition = fmt.Sprintf("WHERE %v", st.WhereStr)
|
|
}
|
|
|
|
if condition == "" {
|
|
if len(condiColNames) > 0 {
|
|
condition = fmt.Sprintf("WHERE %v ", strings.Join(condiColNames, " and "))
|
|
}
|
|
} else {
|
|
if len(condiColNames) > 0 {
|
|
condition = fmt.Sprintf("%v and %v", condition, strings.Join(condiColNames, " and "))
|
|
}
|
|
}
|
|
|
|
var sql string
|
|
if table.Version != "" {
|
|
sql = fmt.Sprintf("UPDATE %v SET %v, %v %v",
|
|
session.Engine.Quote(session.Statement.TableName()),
|
|
strings.Join(colNames, ", "),
|
|
session.Engine.Quote(table.Version)+" = "+session.Engine.Quote(table.Version)+" + 1",
|
|
condition)
|
|
} else {
|
|
sql = fmt.Sprintf("UPDATE %v SET %v %v",
|
|
session.Engine.Quote(session.Statement.TableName()),
|
|
strings.Join(colNames, ", "),
|
|
condition)
|
|
}
|
|
|
|
args = append(append(args, st.Params...), condiArgs...)
|
|
|
|
res, err := session.exec(sql, args...)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
if table.Cacher != nil && session.Statement.UseCache {
|
|
session.cacheUpdate(sql, args...)
|
|
}
|
|
|
|
return res.RowsAffected()
|
|
}
|
|
|
|
func (session *Session) cacheDelete(sql string, args ...interface{}) error {
|
|
if session.Statement.RefTable == nil || session.Statement.RefTable.PrimaryKey == "" {
|
|
return ErrCacheFailed
|
|
}
|
|
|
|
for _, filter := range session.Engine.Filters {
|
|
sql = filter.Do(sql, session)
|
|
}
|
|
|
|
newsql := session.Statement.convertIdSql(sql)
|
|
if newsql == "" {
|
|
return ErrCacheFailed
|
|
}
|
|
|
|
cacher := session.Statement.RefTable.Cacher
|
|
tableName := session.Statement.TableName()
|
|
ids, err := getCacheSql(cacher, tableName, newsql, args)
|
|
if err != nil {
|
|
resultsSlice, err := session.query(newsql, args...)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
ids = make([]int64, 0)
|
|
if len(resultsSlice) > 0 {
|
|
for _, data := range resultsSlice {
|
|
var id int64
|
|
if v, ok := data[session.Statement.RefTable.PrimaryKey]; !ok {
|
|
return errors.New("no id")
|
|
} else {
|
|
id, err = strconv.ParseInt(string(v), 10, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
ids = append(ids, id)
|
|
}
|
|
}
|
|
} /*else {
|
|
session.Engine.LogDebug("delete cache sql %v", newsql)
|
|
cacher.DelIds(tableName, genSqlKey(newsql, args))
|
|
}*/
|
|
|
|
for _, id := range ids {
|
|
session.Engine.LogDebug("[xorm:cacheDelete] delete cache obj", tableName, id)
|
|
cacher.DelBean(tableName, id)
|
|
}
|
|
session.Engine.LogDebug("[xorm:cacheDelete] clear cache table", tableName)
|
|
cacher.ClearIds(tableName)
|
|
return nil
|
|
}
|
|
|
|
func (session *Session) Delete(bean interface{}) (int64, error) {
|
|
err := session.newDb()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
defer session.Statement.Init()
|
|
if session.IsAutoClose {
|
|
defer session.Close()
|
|
}
|
|
|
|
table := session.Engine.autoMap(bean)
|
|
session.Statement.RefTable = table
|
|
colNames, args := buildConditions(session.Engine, table, bean, true,
|
|
session.Statement.allUseBool, session.Statement.boolColumnMap)
|
|
|
|
var condition = ""
|
|
if session.Statement.WhereStr != "" {
|
|
condition = session.Statement.WhereStr
|
|
if len(colNames) > 0 {
|
|
condition += " and " + strings.Join(colNames, " and ")
|
|
}
|
|
} else {
|
|
condition = strings.Join(colNames, " and ")
|
|
}
|
|
if len(condition) == 0 {
|
|
return 0, ErrNeedDeletedCond
|
|
}
|
|
|
|
sql := fmt.Sprintf("DELETE FROM %v WHERE %v",
|
|
session.Engine.Quote(session.Statement.TableName()), condition)
|
|
|
|
args = append(session.Statement.Params, args...)
|
|
|
|
if table.Cacher != nil && session.Statement.UseCache {
|
|
session.cacheDelete(sql, args...)
|
|
}
|
|
|
|
res, err := session.exec(sql, args...)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
return res.RowsAffected()
|
|
}
|