模板插入问题:一个模板优先于另一个

时间:2020-10-22 06:51:51

标签: javascript typescript templates go-templates

我有两个HTML模板(login.html,signup.html),它们都继承了(base.html)文件,问题是两个文件之一覆盖了另一个文件的标题和内容。这意味着当我转到/ login /时,我看到登录内容,但是当我转到/ signup /时,我又看到了登录内容!并且当我停止(login.html)扩展base.html时,/ signup /向我显示了注册页面的内容。

我仍然对Go还是陌生的,正在构建一个Todo应用程序,那么我在做什么错了?

base.html:

{{define "base"}}
<!DOCTYPE html>
...
<title>{{template "title"}}</title>
...
    {{template "main" .}}
...
{{end}}

login.html:

{{template "base" .}}
{{define "title"}}Login{{end}}
{{define "main"}}
     Login Now!
{{end}}

到这里一切都很好
现在,当我开始添加更多模板时:
signup.html

{{template "base" .}}
{{define "title"}}Sign Up{{end}}
{{define "main"}}
    Login or miss who you love >:(
{{end}}

更新:我的Go代码

main.go(可用于路由和可重用功能):

软件包主要

import (
    "html/template"
    "log"
    "net/http"

    "github.com/julienschmidt/httprouter"
)

var templates = template.Must(template.ParseFiles("tmpl/base.html", "tmpl/index.html", "tmpl/signup.html", "tmpl/login.html"))

func renderTemplate(w http.ResponseWriter, r *http.Request, tmpl string, data interface{}) {
    err := templates.ExecuteTemplate(w, tmpl+".html", data)
    if err != nil {
        http.NotFound(w, r)
        return
    }
}

func main() {
    r := httprouter.New()
    r.GET("/signup/", signupHandler)
    r.POST("/createUser/", createUserHandler)
    r.GET("/login/", loginHandler)
    log.Fatal(http.ListenAndServe(":8080", r))
}

auth.go(包含用于身份验证的处理程序)

package main

import (
    "net/http"

    "github.com/julienschmidt/httprouter"
)

func signupHandler(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
    renderTemplate(w, r, "signup", nil)
}
// Logins
func loginHandler(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
    renderTemplate(w, r, "login", nil)


    return
    }
    
//===================================================
//===================================================
//===================================================
//===================================================
//===================================================

用于创建用户的数据库代码(不确定是否相关

//===================================================
//===================================================
//===================================================
//===================================================
 func createUserHandler(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
        if r.FormValue("password1") != r.FormValue("password2") {
            http.Redirect(w, r, "/signup/", http.StatusFound)
            return
        }
        db := connectDB(w, "TodoWoo")
        defer db.Close()
        q := `INSERT INTO users(username, password) VALUES (?, ?)`
        if _, err := db.Exec(q, r.FormValue("username"), r.FormValue("password1")); err != nil {
            http.Error(w, err.Error(), http.StatusInternalServerError)
            return
        }
        http.Redirect(w, r, "/login/", http.StatusFound)
    }
    func loginUserHandler(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
    
    }

driver.go(正在连接数据库,不确定是否与此有关

package main

import (
    "database/sql"
    "fmt"
    "net/http"
    _ "github.com/go-sql-driver/mysql"
)

// Don't forgot to defer db.Close()
func connectDB(w http.ResponseWriter, scm string) *sql.DB {
    db, err := sql.Open("mysql", fmt.Sprintf("root:My44200444Sql@(127.0.0.1:3306)/%s?parseTime=true", scm))
    if err != nil {
        http.Error(w, err.Error(), http.StatusInternalServerError)
    }
    return db
}

1 个答案:

答案 0 :(得分:2)

您可以这样做:

base.html

{{define "base_header"}}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>{{ . }}</title>
</head>
<body>
{{end}}
    
{{define "base_footer"}}
</body>
</html>
{{end}}

login.html

{{ $page_title := "Login" }}
{{ $page_footer := "login footer text" }}
{{ template "base_header" $page_title }}
Login Now!
{{ template "base_footer" $page_footer }}

signup.html

{{ $page_title := "Sign Up" }}
{{ $page_footer := "signup footer text" }}
{{ template "base_header" $page_title }}
Login or miss who you love >:(
{{ template "base_footer" $page_footer }}