我是Golang的新手,我正在从Node.js服务器切换到Golang服务器,我正在尝试重写我之前为Node编写的应用程序。
我想在用户登录时设置模板变量,但我不确定如何,是的,我尝试使用Google搜索。
这是我的注册用户控制器:
func (c User) RegisterUser(user_email, user_password,
user_password_confirmation, user_first_name,
user_last_name string) revel.Result {
// Validate Email
c.Validation.Required(user_email).Message("Username is required")
c.Validation.Email(user_email).Message("Email is not a valid email")
c.Validation.MinSize(user_email, 5).Message("Email must be greater than 5 characters")
// Validate Password
c.Validation.Required(user_password).Message("Password is required")
c.Validation.MinSize(user_password, 5).Message("Password must be greater than 5 characters.")
// Validate Password Confirmation
c.Validation.Required(user_password_confirmation).Message("Password Confirmation is required")
c.Validation.MinSize(user_password_confirmation, 5).Message("Password must be greater than 5 characters.")
c.Validation.Required(user_password == user_password_confirmation).Message("Your passwords do not match")
// Validate First Name
c.Validation.Required(user_first_name).Message("First Name is required")
c.Validation.MinSize(user_first_name, 3).Message("Your First Name must be greater than 3 characters")
// Validate Last Name
c.Validation.Required(user_last_name).Message("Last Name is required")
c.Validation.MinSize(user_last_name, 3).Message("Your Last Name must be greater than 3 characters")
// If anything wasn't right, set flash and display errors to user
if c.Validation.HasErrors() {
c.Validation.Keep()
c.FlashParams()
return c.Redirect(User.Register)
}
// Hash The Users Password
password := []byte(user_password_confirmation)
hashedPassword, err := bcrypt.GenerateFromPassword(password, 10)
if err != nil {
c.Flash.Error("Invalid Username or Password Combination")
return c.Redirect(User.Register)
}
// Connect to database
db, err := sql.Open("mysql", "root:******@/WebRTC")
if err != nil {
c.Flash.Error("Unable to connect to database. Try again later!")
return c.Redirect(User.Register)
}
defer db.Close()
// Ping the database, ensure there is a connection
err = db.Ping()
if err != nil {
c.Flash.Error("Unable to connect to database. Try again later!")
return c.Redirect(User.Register)
}
// Prepare SQL Statement for Security
stmtIns, err := db.Prepare("INSERT INTO users (user_email, user_first_name, user_last_name, " +
"user_password_hash, user_created_at, user_created_ip, user_last_ip) VALUES (?, ?, ?, ?, ?, ?, ?)")
if err != nil {
c.Flash.Error("Unable to Register you. Please try again later")
return c.Redirect(User.Register)
}
defer stmtIns.Close()
// Insert Data into Database
_, err = stmtIns.Exec(user_email, user_first_name, user_last_name, hashedPassword,
time.Now().Local(), c.Request.RemoteAddr, c.Request.RemoteAddr)
if err != nil {
c.Flash.Error("Unable to register you. Please try again later")
return c.Redirect(User.Register)
}
// Here I want to add the global template variable
return c.Redirect(User.Register)
}
我读过关于c.RenderArgs
的内容,但似乎并没有按照我的意愿行事。
我希望能够设置用户的用户名,以便我可以在导航栏中显示它,以便他们知道他们已登录。
答案 0 :(得分:1)
如果你使用的是c.RenderArgs
,那么你就是在正确的轨道上,除非我误解了你的意图。
以下是您可以如何使用它的示例(或更确切地说,演练)(取自Revel的booking sample app):
init.go:注册interceptor以在执行操作之前添加用户的信息(AddUser
将在Render
之前触发)。
app.go:检查用户是否已连接,如果是,请将用户的数据存储在RenderArgs
地图中,如下所示:
c.RenderArgs["user"] = user
第31行处理model。
我希望这会有所帮助。
编辑:我应该在登录时添加用户的用户名为stored in a session。它习惯于retrieve more information。