首页 \ 问答 \ Rails 3：如何判断用户之前是否访问了某个页面？(Rails 3: How to tell if a user has visited a page before?)

Rails 3：如何判断用户之前是否访问了某个页面？(Rails 3: How to tell if a user has visited a page before?)

 我有一个Rails应用程序（使用Authlogic进行身份验证）和一个简单的jquery动画，我只想在第一页加载时运行一次。 我知道关键是检查cookie或其他东西，以查看用户之前是否访问过该页面。 请原谅我的n00bness，我对HTTP cookie或会话知之甚少。 
 

 那么，查看访问用户（即使他们还没有登录）是否第一次查看页面的最佳方法是什么？ 
 

 编辑：好的，所以我意识到我并不完全清楚。 
 

 我花了好几个小时查看类似的问题，阅读Rails API文档中的cookie和会话，我仍然无法想象如何实现访问？ 我的网站中每个页面的功能，只有在用户第一次访问该页面后才会设置为“true”。 我查看了所谓的“重复”问题Rails检测用户的第一次访问和相应的答案，仍然无法弄明白。 
 

 这是我的“页面”控制器： 
 

def home
    @title = "Home"
end

def contact
    @title = "Contact Us"
end

 

 DD 
 

 我的jquery javascript做了一个简单的动画： 
 

$(document).ready(function() 
 {
if (!$.cookie('visited')) {
    $('.title .flying-text').css({opacity:0});
    $('.title .active-text').animate({
        opacity:1,
        marginTop: "-150px",
        }, 5000);
}
 });

 

 我只希望它显示用户之前是否没有访问过该页面。 我不知道如何在Rails中正确设置cookie，也不知道如何设置它，也不知道如何确保动画脚本可以访问完全相同的cookie值。 有人可以帮我一把吗？ 
 

 〜丹 

I have a Rails app (using Authlogic for authentication) with a simple jquery animation that I only want to run once upon first page load. I know that the key is to check cookies or something to see if the user has visited the page before. Please forgive my n00bness, I know little to nothing about HTTP cookies or sessions.
 

So, what's the best way to see if a visiting user (even if they haven't logged in) is viewing a page for the first time? 
 

EDIT: Ok, so I realize I wasn't being entirely clear.
 

I've spent hours looking at similar questions and reading the Rails API Docs for cookies and sessions and I still can't visualize how to implement a visited? function for each page in my site that will only be set to "true" after the user has visited the page the first time. I looked at the supposed "duplicate" question Rails Detect If User's Very First Visit and the respective answers and still can't figure it out. 
 

Here's my "Pages" controller:
 

def home
    @title = "Home"
end

def contact
    @title = "Contact Us"
end

 

dd
 

And my jquery javascript that does a simple animation:
 

$(document).ready(function() 
 {
if (!$.cookie('visited')) {
    $('.title .flying-text').css({opacity:0});
    $('.title .active-text').animate({
        opacity:1,
        marginTop: "-150px",
        }, 5000);
}
 });

 

I only want it to show if the user HAS NOT visited the page before. I have no idea how to properly set a cookie in Rails, nor where to put it, nor how to make sure that the animation script can access that exact same cookie value. Can someone give me a hand?
 

~Dan

原文：https://stackoverflow.com/questions/4994673
更新时间：2022-08-09 10:08

最满意答案

 适配器类的例子： 
 

public class AdapterClass extends BaseAdapter {


     private List _list;

     public AdapterDirectories(List list){
          // Constructor with good parameters
          _list = list;
     }

    @Override
    public int getCount() {

        return _list.size();
    }

    @Override
    public Object getItem(int position) {

        return position;
    }

    @Override
    public long getItemId(int position) {

        return position;
    }


    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        View view = convertView;
        CellHolder cellHolder = null;
        // get
        if (convertView == null) {
            view = _inflater.inflate(R.layout.list_item, null);
            cellHolder = new CellHolder();
            cellHolder.textTitle = (TextView) view.findViewById(R.id.text_view_title);
            view.setTag(cellHolder);
        }
        else {
            cellHolder = (CellHolder) convertView.getTag();
        }
        // set
        cellHolder.textTitle.setText("");
        return view;
    }

    public class CellHolder {
        public TextView     textTitle;
    }
}

 

 将适配器设置为列表视图： 
 

_listView.setAdapter(_adapter);


Exemple of adapter class:
 

public class AdapterClass extends BaseAdapter {


     private List _list;

     public AdapterDirectories(List list){
          // Constructor with good parameters
          _list = list;
     }

    @Override
    public int getCount() {

        return _list.size();
    }

    @Override
    public Object getItem(int position) {

        return position;
    }

    @Override
    public long getItemId(int position) {

        return position;
    }


    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        View view = convertView;
        CellHolder cellHolder = null;
        // get
        if (convertView == null) {
            view = _inflater.inflate(R.layout.list_item, null);
            cellHolder = new CellHolder();
            cellHolder.textTitle = (TextView) view.findViewById(R.id.text_view_title);
            view.setTag(cellHolder);
        }
        else {
            cellHolder = (CellHolder) convertView.getTag();
        }
        // set
        cellHolder.textTitle.setText("");
        return view;
    }

    public class CellHolder {
        public TextView     textTitle;
    }
}

 

setting the adapter to the list view :
 

_listView.setAdapter(_adapter);

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