Question

我有一个应用程序，您可以在application.html.erb中的标题中登录和注销。登录表单（或注销链接）分别调用用户＃signIn或users＃signout actions。这两个动作都调用redirect_to root_path。那部分有效。

我想要的是动态更新标头而不是刷新页面（即删除redirect_to）。我想通过javascript / jquery（但不是咖啡）来做到这一点。文件views / users / signIn.js包含三个功能：一个用于用户登录，一个用于管理登录，一个用于用户/管理员登出。

我已经在互联网上搜索过但我无法找到答案。简而言之，在我签署（或注销）用户或管理员之后，我想从signIn.js中包含的users_controller.rb调用javascript / jquery函数（或者对signIn.js.erb，我对此感到困惑）

我的代码如下。谢谢。

users_controller.rb

class UsersController < ApplicationController
include UsersHelper
include AdminsHelper
before_action :correctUser, only: [:edit, :update, :destroy]


...


def signIn
    user = User.find_by(email: params[:user][:email].downcase)
    if user && user.authenticate(params[:user][:password])
        signInUser user
        render js: "sUser();" #Call to javascript function
    else 
        admin = Admin.find_by(email: params[:user][:email].downcase)
        if admin && admin.authenticate(params[:user][:password])
            signInAdmin admin
            render js: "sAdmin();" #call to js function
        else
            flash[:error] = "Invalid email or password"
            redirect_to root_path
        end
    end
end

def signout
    #works for both users and admins
    signOutUser
    render js: "signoutAll();" # call to js function
end

private

    def correctUser
        redirect_to root_path unless User.find(params[:id]) == currentUser || adminSignedIn?
    end

    def userParams
        params.require(:user).permit(:name, :email,
            :password, :password_confirmation)
    end

    def signInUser(user)
        rememberToken = User.newRememberToken
        cookies[:remember_token] = rememberToken
        #change to cookies.permanent to make cookie stay after browser close
        user.update_attribute(:remember_token, User.digest(rememberToken))
    end

    def signInAdmin(admin)
        rememberToken = Admin.newRememberToken
        cookies[:remember_token] = rememberToken
        #change to cookies.permanent to make cookie stay after browser close
        admin.update_attribute(:remember_token, Admin.digest(rememberToken))
    end

    def signOutUser
        #Works for both users and admins
        cookies.delete(:remember_token)
    end
end

视图/用户/ signIn.js

function sAdmin() {
    $("#signin").html("Signed in as Admin \
    <%= escape_javascript(link_to currentAdmin.name, currentAdmin)%>. \
    <%= escape_javascript(link_to "Sign Out", signout_path)%>");
}

function sUser(){
    $("#signin").html("Signed in as User \
    <%= escape_javascript(link_to currentUser.name, currentUser)%>. \
    <%= escape_javascript(link_to "Sign Out", signout_path)%>");
}

function signoutAll(){
    $("#signin").html("blah <%= render 'static_pages/form' %>");
}

从Rails控制器调用Javascript函数

0 个答案: