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https://github.com/go-gitea/gitea
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* Upgrade xorm to v1.0.0 * small nit * Fix tests * Update xorm * Update xorm * fix go.sum * fix test * Fix bug when dump * Fix bug * update xorm to latest * Fix migration test * update xorm to latest * Fix import order * Use xorm tag
159 lines
3.8 KiB
Go
Vendored
159 lines
3.8 KiB
Go
Vendored
// 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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"errors"
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"fmt"
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"reflect"
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"xorm.io/builder"
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"xorm.io/xorm/core"
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"xorm.io/xorm/internal/utils"
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)
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// Rows rows wrapper a rows to
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type Rows struct {
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session *Session
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rows *core.Rows
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beanType reflect.Type
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lastError error
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}
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func newRows(session *Session, bean interface{}) (*Rows, error) {
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rows := new(Rows)
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rows.session = session
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rows.beanType = reflect.Indirect(reflect.ValueOf(bean)).Type()
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var sqlStr string
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var args []interface{}
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var err error
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beanValue := reflect.ValueOf(bean)
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if beanValue.Kind() != reflect.Ptr {
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return nil, errors.New("needs a pointer to a value")
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} else if beanValue.Elem().Kind() == reflect.Ptr {
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return nil, errors.New("a pointer to a pointer is not allowed")
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}
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if err = rows.session.statement.SetRefBean(bean); err != nil {
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return nil, err
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}
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if len(session.statement.TableName()) <= 0 {
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return nil, ErrTableNotFound
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}
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if rows.session.statement.RawSQL == "" {
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var autoCond builder.Cond
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var addedTableName = (len(session.statement.JoinStr) > 0)
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var table = rows.session.statement.RefTable
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if !session.statement.NoAutoCondition {
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var err error
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autoCond, err = session.statement.BuildConds(table, bean, true, true, false, true, addedTableName)
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if err != nil {
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return nil, err
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}
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} else {
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// !oinume! Add "<col> IS NULL" to WHERE whatever condiBean is given.
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// See https://gitea.com/xorm/xorm/issues/179
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if col := table.DeletedColumn(); col != nil && !session.statement.GetUnscoped() { // tag "deleted" is enabled
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var colName = session.engine.Quote(col.Name)
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if addedTableName {
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var nm = session.statement.TableName()
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if len(session.statement.TableAlias) > 0 {
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nm = session.statement.TableAlias
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}
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colName = session.engine.Quote(nm) + "." + colName
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}
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autoCond = session.statement.CondDeleted(col)
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}
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}
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sqlStr, args, err = rows.session.statement.GenFindSQL(autoCond)
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if err != nil {
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return nil, err
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}
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} else {
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sqlStr = rows.session.statement.GenRawSQL()
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args = rows.session.statement.RawParams
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}
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rows.rows, err = rows.session.queryRows(sqlStr, args...)
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if err != nil {
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rows.lastError = err
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rows.Close()
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return nil, err
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}
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return rows, nil
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}
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// Next move cursor to next record, return false if end has reached
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func (rows *Rows) Next() bool {
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if rows.lastError == nil && rows.rows != nil {
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hasNext := rows.rows.Next()
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if !hasNext {
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rows.lastError = sql.ErrNoRows
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}
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return hasNext
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}
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return false
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}
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// Err returns the error, if any, that was encountered during iteration. Err may be called after an explicit or implicit Close.
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func (rows *Rows) Err() error {
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return rows.lastError
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}
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// Scan row record to bean properties
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func (rows *Rows) Scan(bean interface{}) error {
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if rows.lastError != nil {
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return rows.lastError
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}
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if reflect.Indirect(reflect.ValueOf(bean)).Type() != rows.beanType {
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return fmt.Errorf("scan arg is incompatible type to [%v]", rows.beanType)
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}
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if err := rows.session.statement.SetRefBean(bean); err != nil {
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return err
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}
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fields, err := rows.rows.Columns()
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if err != nil {
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return err
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}
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scanResults, err := rows.session.row2Slice(rows.rows, fields, bean)
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if err != nil {
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return err
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}
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dataStruct := utils.ReflectValue(bean)
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_, err = rows.session.slice2Bean(scanResults, fields, bean, &dataStruct, rows.session.statement.RefTable)
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if err != nil {
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return err
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}
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return rows.session.executeProcessors()
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}
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// Close session if session.IsAutoClose is true, and claimed any opened resources
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func (rows *Rows) Close() error {
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if rows.session.isAutoClose {
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defer rows.session.Close()
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}
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if rows.rows != nil {
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return rows.rows.Close()
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}
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return rows.lastError
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}
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