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524 lines
11 KiB
524 lines
11 KiB
package app
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import (
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"errors"
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"github.com/go-chi/chi/v5"
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"github.com/go-chi/jwtauth/v5"
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"gorm.io/gorm"
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"net/http"
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"strings"
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)
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var tokenAuth *jwtauth.JWTAuth
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func init() {
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tokenAuth = jwtauth.New("HS256", []byte("secret"), nil)
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}
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type userInfo struct {
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id uint
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Name string
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PhoneNumber string
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Password string
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}
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func (u *userInfo) Bind(r *Request) error {
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if name, ok := r.Get("name"); ok && len(name) > 0 {
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u.Name = name
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} else {
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return NewError(1, "缺少用户名称")
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}
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if phoneNumber, ok := r.Get("phone_number"); ok && len(phoneNumber) > 0 {
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if len(phoneNumber) != 11 {
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return NewError(2, "手机号码格式错误")
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}
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u.PhoneNumber = phoneNumber
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} else {
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return NewError(2, "缺少手机号码")
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}
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if password, ok := r.Get("password"); ok && len(password) > 0 {
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if len(password) < 6 {
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return NewError(2, "密码太短")
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}
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u.Password = password
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} else {
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return NewError(2, "缺少密码")
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}
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return nil
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}
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// CreateUser 创建用户
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func CreateUser(w *ResponseWriter, r *Request) {
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var ui userInfo
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if err := ui.Bind(r); err != nil {
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w.Error(err)
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return
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}
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var count int64
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if err := DB.Model(&User{}).Where("phone_number = ?", ui.PhoneNumber).Count(&count).Error; err != nil {
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w.Error(err)
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return
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}
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if count > 0 {
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w.Error(NewError(2, "手机号码已经被使用了"))
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return
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}
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hash, err := HashPassword(ui.Password)
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if err != nil {
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LogError(err)
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w.Error(NewError(1, "加密密码失败"))
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return
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}
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user := User{
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Name: ui.Name,
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PhoneNumber: ui.PhoneNumber,
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Password: hash,
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Admin: false,
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}
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if err := DB.Create(&user).Error; err != nil {
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w.Error(err)
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} else {
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w.Ok(ui, "创建用户成功")
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}
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}
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// UpdateUser 更新用户
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func UpdateUser(w *ResponseWriter, r *Request) {
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id := chi.URLParam(r.Request, "id")
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if len(id) == 0 {
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w.Error(NewError(1, "缺少用户ID"))
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}
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var ui userInfo
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if err := ui.Bind(r); err != nil {
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w.Error(err)
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return
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}
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// 查询用户信息
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var user User
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if err := DB.First(&user, "id = ?", id).Error; err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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err = NewError(1, "用户不存在")
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}
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w.Error(err)
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return
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}
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// 用户信息未发生变化
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if ui.Name == user.Name && ui.PhoneNumber == user.PhoneNumber && CheckPasswordHash(ui.Password, user.Password) {
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w.Ok(nil, "操作成功")
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return
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}
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// 检查手机号码是否被使用
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var count int64
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if err := DB.Model(&User{}).Where("phone_number = ? AND id != ?", ui.PhoneNumber, id).Count(&count).Error; err != nil {
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w.Error(err)
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return
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}
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if count > 0 {
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w.Error(NewError(1, "手机号码已被使用"))
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return
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}
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// 保存用户信息
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user.Name = ui.Name
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user.PhoneNumber = ui.PhoneNumber
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user.Password = ui.Password
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if err := DB.Save(&user).Error; err != nil {
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w.Error(err)
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} else {
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w.Ok(nil, "操作成功")
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}
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}
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// DeleteUser 删除用户
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func DeleteUser(w *ResponseWriter, r *Request) {
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id := chi.URLParam(r.Request, "id")
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if len(id) == 0 {
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w.Error(NewError(1, "缺少用户ID"))
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}
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// 查询用户信息
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var user User
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if err := DB.First(&user, "id = ?", id).Error; err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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err = NewError(1, "用户不存在")
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}
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w.Error(err)
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return
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}
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// 删除用户
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if err := DB.Delete(&user).Error; err != nil {
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LogError(err)
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w.Error(NewError(1, "删除用户失败"))
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} else {
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w.Ok(nil, "删除用户成功")
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}
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}
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// ListUser 用户列表
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func ListUser(w *ResponseWriter, r *Request) {
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search := func(db *gorm.DB) *gorm.DB {
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return db.
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Model(&User{}).
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Scopes(Search(r, "name", "name LIKE ?")).
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Scopes(Paginate(r))
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}
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var userList []User
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var total int64
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var err error
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if err = DB.Scopes(search).Count(&total).Error; err == nil {
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err = DB.Scopes(search).Find(&userList).Error
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}
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if err != nil {
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w.Error(err)
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} else {
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w.Ok(map[string]any{
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"list": userList,
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"total": total,
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})
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}
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}
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// Login 用户登录
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func Login(w *ResponseWriter, r *Request) {
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var phoneNumber string
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var password string
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var ok bool
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// 提交的手机号码
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if phoneNumber, ok = r.Get("phone_number"); ok && len(phoneNumber) > 0 {
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if len(phoneNumber) != 11 {
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w.Error(NewError(2, "手机号码格式错误"))
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return
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}
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} else {
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w.Error(NewError(2, "缺少手机号码"))
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return
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}
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// 提交的登陆密码
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if password, ok = r.Get("password"); ok && len(password) > 0 {
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if len(password) < 6 {
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w.Error(NewError(2, "密码太短"))
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return
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}
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} else {
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w.Error(NewError(2, "缺少密码"))
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return
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}
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// 查询用户是否存在
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var user User
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if err := DB.First(&user, "phone_number = ?", phoneNumber).Error; err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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err = NewError(1, "手机号码或密码错误")
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}
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w.Error(err)
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return
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}
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// 验证密码
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if !CheckPasswordHash(password, user.Password) {
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w.Error(NewError(1, "手机号码或密码错误"))
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return
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}
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ut, err := GenerateAuthToken(r, user.ID)
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if err == nil {
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err = DB.Create(&ut).Error
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}
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if err != nil {
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w.Error(err)
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return
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}
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w.Ok(map[string]any{
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"user": user,
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"access_token": ut.AccessToken,
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"refresh_token": ut.RefreshToken,
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}, "登录成功")
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}
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// RefreshToken 刷新授权令牌
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func RefreshToken(w *ResponseWriter, r *Request) {
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// 获取刷新令牌信息
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ut, err := AuthInfo(r)
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if err != nil {
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w.Error(err)
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return
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}
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// 生成新的令牌
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ut2, err := GenerateAuthToken(r, ut.UserID)
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if err != nil {
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w.Error(err)
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return
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}
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// 删除旧的令牌,保持新的令牌
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err = DB.Transaction(func(tx *gorm.DB) error {
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if err := tx.Delete(&ut).Error; err != nil {
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return err
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}
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return tx.Create(&ut2).Error
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})
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if err != nil {
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w.Error(err)
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return
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}
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w.Ok(map[string]any{
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"access_token": ut.AccessToken,
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"refresh_token": ut.RefreshToken,
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}, "刷新令牌成功")
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}
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// CreateGoods 创建商品
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func CreateGoods(w *ResponseWriter, r *Request) {
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name := r.Value("name")
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price := r.Float32("price", 0)
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if len(name) == 0 {
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w.Error(NewError(1, "商品名称错误"))
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return
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}
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if price <= 0 {
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w.Error(NewError(2, "商品价格错误"))
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return
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}
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// 加载登录用户信息
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ut, ok := UserTokenFromContext(r.Context())
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if !ok {
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w.Error(NewError(1, "找不到登录用户消息"))
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return
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}
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// 防止商品重名
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var goods Goods
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err := DB.First(&goods, "name = ?", name).Error
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if errors.Is(err, gorm.ErrRecordNotFound) {
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goods = Goods{
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Name: name,
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Price: price,
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CreatedBy: ut.UserID,
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Creator: ut.User,
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UpdatedBy: ut.UserID,
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Updater: ut.User,
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}
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err = DB.Transaction(func(tx *gorm.DB) error {
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if err := tx.Create(&goods).Error; err != nil {
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return err
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}
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return tx.Create(&Price{
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GoodsID: goods.ID,
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Price: goods.Price,
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CreatedBy: goods.CreatedBy,
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CreatedAt: goods.CreatedAt,
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}).Error
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})
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if err != nil {
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w.Error(NewError(3, "创建商品失败"))
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} else {
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w.Ok(goods)
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}
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} else if err != nil {
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w.Error(err)
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} else {
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w.Error(NewError(5, "商品已经存在"))
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}
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}
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// UpdateGoods 更新产品信息
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func UpdateGoods(w *ResponseWriter, r *Request) {
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name := r.Value("name")
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price := r.Float32("price", 0)
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id := uint(r.Uint64("id", 0))
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if len(name) == 0 {
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w.Error(NewError(1, "商品名称错误"))
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return
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}
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if price <= 0 {
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w.Error(NewError(2, "商品价格错误"))
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return
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}
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// 加载登录用户信息
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ut, ok := UserTokenFromContext(r.Context())
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if !ok {
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w.Error(NewError(1, "找不到登录用户消息"))
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return
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}
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// 查询商品
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var goods Goods
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err := DB.First(&goods, "id = ?", id).Error
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if errors.Is(err, gorm.ErrRecordNotFound) {
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w.Error(NewError(2, "商品不存在"))
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return
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} else if err != nil {
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w.Error(err)
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return
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}
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// 商品名称不能重复
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err = DB.Where("id <> ?", id).First(&Goods{}, "name = ?", name).Error
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if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
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w.Error(err)
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return
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}
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// 信息未改变
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if goods.Name == name && goods.Price == price {
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w.Error(NewError(2, "数据未变化"))
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return
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}
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// 价格未改变
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if goods.Price == price {
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if goods.Name != name {
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goods.Name = name
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goods.UpdatedBy = ut.UserID
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goods.Updater = ut.User
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err = DB.Save(&goods).Error
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if err != nil {
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w.Error(err)
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return
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}
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}
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w.Ok(goods, "修改成功")
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return
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}
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// 修改商品信息并记录价格变化
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err = DB.Transaction(func(tx *gorm.DB) error {
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goods.Name = name
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goods.Price = price
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goods.UpdatedBy = ut.UserID
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goods.Updater = ut.User
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if err = tx.Save(&goods).Error; err != nil {
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return err
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}
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// 记录价格变化
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return tx.Create(&Price{
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GoodsID: goods.ID,
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Price: goods.Price,
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CreatedBy: ut.UserID,
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Creator: ut.User,
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}).Error
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})
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if err != nil {
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w.Error(err)
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} else {
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w.Ok(goods, "修改成功")
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}
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}
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// ListGoods 查询商品列表
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func ListGoods(w *ResponseWriter, r *Request) {
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search := func(db *gorm.DB) *gorm.DB {
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return db.
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Model(&Goods{}).
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Scopes(TimeRange(r, "created_at")).
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Scopes(Paginate(r)).
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Scopes(Search(r, "name", "name LIKE ?"))
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}
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var goodsList []Goods
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var total int64
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var err error
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if err = DB.Scopes(search).Count(&total).Error; err == nil {
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err = DB.Scopes(search).Preload("Creator").Preload("Updater").Find(&goodsList).Error
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}
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if err != nil {
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w.Error(err)
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} else {
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w.Ok(map[string]any{
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"list": goodsList,
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"total": total,
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})
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}
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}
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// 查询价格列表
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func ListPrices(w *ResponseWriter, r *Request) {
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id := uint(r.Uint64("id", 0))
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var goods Goods
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if err := DB.Scopes(func(db *gorm.DB) *gorm.DB {
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var queries []string
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var args []any
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if val, ok := r.Get("start_time"); ok {
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queries = append(queries, "created_at >= ?")
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args = append(args, val)
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}
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if val, ok := r.Get("end_time"); ok {
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queries = append(queries, "created_at <= ?")
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args = append(args, val)
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}
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if len(queries) == 0 {
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return db.Preload("Prices.Creator")
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}
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args = append([]any{strings.Join(queries, " AND ")}, args...)
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return db.Preload("Prices", args...)
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}).First(&goods, "id = ?", id).Error; err != nil {
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w.Error(err)
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} else {
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w.Ok(goods)
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}
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}
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// RegisterRoutes 注册路由
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func RegisterRoutes(r chi.Router) {
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// 登录接口
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r.Post("/login", Handler(Login))
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// 需要登录权限的
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r.Group(func(r chi.Router) {
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r.Use(jwtauth.Verifier(tokenAuth))
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r.Use(jwtauth.Authenticator)
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r.Use(CheckAuthToken)
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// 刷新令牌
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r.Get("/refresh-token", Handler(RefreshToken))
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// 管理员
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r.Group(func(r chi.Router) {
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// 验证是不是管理员
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r.Use(func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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ut, ok := r.Context().Value("USER_TOKEN").(*UserToken)
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if ok && ut.User != nil && ut.User.Admin {
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next.ServeHTTP(w, r)
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return
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}
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NewResponseWriter(w).Error(&Error{
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Status: http.StatusInternalServerError,
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Code: 2,
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Message: "用户信息错误",
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})
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})
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})
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r.Post("/user", Handler(CreateUser))
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r.Patch("/user/:id", Handler(UpdateUser))
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r.Delete("/user/:id", Handler(DeleteUser))
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r.Get("/users", Handler(ListUser))
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})
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// 普通用户
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r.Group(func(r chi.Router) {
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r.Post("/goods", Handler(CreateGoods))
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r.Patch("/goods/:id", Handler(UpdateGoods))
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r.Get("/goods", Handler(ListGoods))
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r.Get("/goods/:id/prices", Handler(ListPrices))
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})
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})
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}
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