first commit

apps/user/internal/model/usersmodel.go

@@ -0,0 +1,78 @@
+package model
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+	"github.com/zeromicro/go-zero/core/stores/cache"
+	"github.com/zeromicro/go-zero/core/stores/sqlx"
+)
+
+var _ UsersModel = (*customUsersModel)(nil)
+
+type (
+	// UsersModel is an interface to be customized, add more methods here,
+	// and implement the added methods in customUsersModel.
+	UsersModel interface {
+		usersModel
+		UpdateUserTrans(ctx context.Context, user *Users, session sqlx.Session) (sql.Result, error)
+		FindOneTrans(ctx context.Context, userId int64, session sqlx.Session) (*Users, error)
+	}
+
+	customUsersModel struct {
+		*defaultUsersModel
+	}
+)
+
+// NewUsersModel returns a model for the database table.
+func NewUsersModel(conn sqlx.SqlConn, c cache.CacheConf, opts ...cache.Option) UsersModel {
+	return &customUsersModel{
+		defaultUsersModel: newUsersModel(conn, c, opts...),
+	}
+}
+
+func (m *defaultUsersModel) UpdateUserTrans(ctx context.Context, user *Users, session sqlx.Session) (sql.Result, error) {
+	userIdKey := fmt.Sprintf("%s%v", cacheUsersIdPrefix, user.Id)
+	usersPhoneKey := fmt.Sprintf("%s%v", cacheUsersPhonePrefix, user.Phone)
+	usersUsernameKey := fmt.Sprintf("%s%v", cacheUsersUsernamePrefix, user.Username)
+	query := fmt.Sprintf("UPDATE %s SET %s WHERE `id` = ?", m.table, usersRowsWithPlaceHolder)
+	ret, err := session.ExecCtx(ctx, query, user.Username, user.Password, user.Phone, user.AuthStatus, user.Id)
+	if err != nil {
+		return nil, err
+	}
+
+	// 2. 删除缓存，保证所有缓存操作成功
+	cacheKeys := []string{userIdKey, usersPhoneKey, usersUsernameKey}
+	cacheErrors := make([]error, len(cacheKeys))
+
+	cacheErrors[0] = m.DelCacheCtx(ctx, userIdKey)
+	cacheErrors[1] = m.DelCacheCtx(ctx, usersPhoneKey)
+	cacheErrors[2] = m.DelCacheCtx(ctx, usersUsernameKey)
+
+	// 3. 检查缓存操作是否全部成功
+	for _, cacheErr := range cacheErrors {
+		if cacheErr != nil {
+			return nil, cacheErr // 返回第一个缓存更新失败的错误
+		}
+	}
+	return ret, err
+}
+func (m *defaultUsersModel) FindOneTrans(ctx context.Context, userId int64, session sqlx.Session) (*Users, error) {
+	// 定义 SQL 查询语句
+	query := fmt.Sprintf("SELECT %s FROM %s WHERE `id` = ? LIMIT 1", usersRows, m.table)
+
+	var user Users
+	// 在事务上下文中执行查询
+	err := session.QueryRowCtx(ctx, &user, query, userId)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			// 如果没有找到记录，返回 nil 和 ErrNotFound 错误
+			return nil, ErrNotFound
+		}
+		return nil, err
+	}
+
+	// 返回查询结果
+	return &user, nil
+}