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create_user.go
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create_user.go
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// Copyright 2021 CloudWeGo Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package service
import (
"context"
"crypto/md5"
"fmt"
"io"
"github.com/cloudwego/kitex-examples/bizdemo/easy_note/pkg/errno"
"github.com/cloudwego/kitex-examples/bizdemo/easy_note/kitex_gen/userdemo"
"github.com/cloudwego/kitex-examples/bizdemo/easy_note/cmd/user/dal/db"
)
type CreateUserService struct {
ctx context.Context
}
// NewCreateUserService new CreateUserService
func NewCreateUserService(ctx context.Context) *CreateUserService {
return &CreateUserService{ctx: ctx}
}
// CreateUser create user info.
func (s *CreateUserService) CreateUser(req *userdemo.CreateUserRequest) error {
users, err := db.QueryUser(s.ctx, req.UserName)
if err != nil {
return err
}
if len(users) != 0 {
return errno.UserAlreadyExistErr
}
h := md5.New()
if _, err = io.WriteString(h, req.Password); err != nil {
return err
}
passWord := fmt.Sprintf("%x", h.Sum(nil))
return db.CreateUser(s.ctx, []*db.User{{
UserName: req.UserName,
Password: passWord,
}})
}