79 lines
2.5 KiB
Go
79 lines
2.5 KiB
Go
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package model
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import (
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"context"
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"database/sql"
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"errors"
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"fmt"
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"github.com/zeromicro/go-zero/core/stores/cache"
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"github.com/zeromicro/go-zero/core/stores/sqlx"
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)
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var _ UsersModel = (*customUsersModel)(nil)
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type (
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// UsersModel is an interface to be customized, add more methods here,
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// and implement the added methods in customUsersModel.
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UsersModel interface {
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usersModel
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UpdateUserTrans(ctx context.Context, user *Users, session sqlx.Session) (sql.Result, error)
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FindOneTrans(ctx context.Context, userId int64, session sqlx.Session) (*Users, error)
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}
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customUsersModel struct {
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*defaultUsersModel
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}
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)
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// NewUsersModel returns a model for the database table.
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func NewUsersModel(conn sqlx.SqlConn, c cache.CacheConf, opts ...cache.Option) UsersModel {
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return &customUsersModel{
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defaultUsersModel: newUsersModel(conn, c, opts...),
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}
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}
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func (m *defaultUsersModel) UpdateUserTrans(ctx context.Context, user *Users, session sqlx.Session) (sql.Result, error) {
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userIdKey := fmt.Sprintf("%s%v", cacheUsersIdPrefix, user.Id)
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usersPhoneKey := fmt.Sprintf("%s%v", cacheUsersPhonePrefix, user.Phone)
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usersUsernameKey := fmt.Sprintf("%s%v", cacheUsersUsernamePrefix, user.Username)
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query := fmt.Sprintf("UPDATE %s SET %s WHERE `id` = ?", m.table, usersRowsWithPlaceHolder)
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ret, err := session.ExecCtx(ctx, query, user.Username, user.Password, user.Phone, user.AuthStatus, user.Id)
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if err != nil {
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return nil, err
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}
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// 2. 删除缓存，保证所有缓存操作成功
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cacheKeys := []string{userIdKey, usersPhoneKey, usersUsernameKey}
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cacheErrors := make([]error, len(cacheKeys))
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cacheErrors[0] = m.DelCacheCtx(ctx, userIdKey)
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cacheErrors[1] = m.DelCacheCtx(ctx, usersPhoneKey)
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cacheErrors[2] = m.DelCacheCtx(ctx, usersUsernameKey)
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// 3. 检查缓存操作是否全部成功
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for _, cacheErr := range cacheErrors {
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if cacheErr != nil {
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return nil, cacheErr // 返回第一个缓存更新失败的错误
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}
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}
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return ret, err
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}
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func (m *defaultUsersModel) FindOneTrans(ctx context.Context, userId int64, session sqlx.Session) (*Users, error) {
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// 定义 SQL 查询语句
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query := fmt.Sprintf("SELECT %s FROM %s WHERE `id` = ? LIMIT 1", usersRows, m.table)
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var user Users
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// 在事务上下文中执行查询
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err := session.QueryRowCtx(ctx, &user, query, userId)
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if err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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// 如果没有找到记录，返回 nil 和 ErrNotFound 错误
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return nil, ErrNotFound
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}
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return nil, err
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}
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// 返回查询结果
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return &user, nil
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}
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