I want to load a webpage in several parts, maybe using jquery ajax or just simple javascript ajax functions so the user can start interacting with the webpage withouth having to wait for the whole page to load. Just like gmail does.
How can I achieve such a thing?
Generally you need to dedicate some div containers for inserting dynamically loaded contents.
<div id="header"></div>
<div id="content"></div>
<div id="sidebar"></div>
<div id="footer"></div>
Then you can load other pages on startup.
$(function(){
$('#content').load('content.php');
$('#content').load('sidebar.php');
});
Of course this is only a start. You have to check for errors on loading and retry. Also using hash value you can dynamically load content & sidebar. etc..
Related
I need to crawl a site and get all the links from it, the problem is - this site uses ajax, and Go's standart http.Get(..) will return something like:
<body>
//javascript here
<div class="content"></div>
//javascript here
</body>
Div is empty. Is there some solution with golang?
http.Get(Url) just get the response of the Url.
resp.Content is like:
<body>
//javascript here
<div class="content"></div>
//javascript here
</body>
if you want to get the content in the div, you need to analysis the javascript and know how the ajax to get data. Then you can simulate the processes the get what you want.
You must use one of the headless webbrowsers.
Without checking i'm saying that there is no Go binding for the three remaining browser engines (Webkit/Firefox,IE).
Switch to python and javascript.
I am using ReactJS to render a like/unlike component for an object in a django project. I have a list page where I have a list of objects and for each object I render a LikeUnlike component as follows:
<div class="object">
<span id="likes-service-{{service.pk}}"></span>
<script type="text/jsx">
React.render(<LikeUnlike object_id="{{service.pk}}" app_label="providers" model_name="providerservice" like_count="{{service.like_count}}" liked="{% user_has_liked 'providers' 'providerservice' service.pk request.user.pk %}" />, document.getElementById("likes-service-{{service.pk}}"));
</script>
</div>
On the very first page every thing works. The component renders and works as expected. The issue comes in when I scroll down and the second page is loaded via ajax (as I am using django-endless-pagination). For any pages loaded via ajax, the component is not rendered and all I see is a blank <span id="likes-service-{{service.pk}}"></span> element.
I have tried logging document.getElementById("likes-service-{{service.pk}}") and few other things and seems like the element, React library etc. are available.
I can't figure out why the component is not rendered when the page is loaded via ajax. Any Ideas ?
I'm working on a news publishing site that needs to load in stories from an RSS feed below the current news page. I've been using InfiniteAjaxScroll (http://infiniteajaxscroll.com/) to some success however, I've hit a brick wall. There is not way for me to dynamically change what story should load in next as you scroll down the page.
Does anyone know of any other plugins, tutorials, examples that replicate behavior like this. I've searched but come up with nothing that meets these requirements.
I'm trying to create something similar to what the Daily Beast has implemented on their site.
http://www.thedailybeast.com/articles/2014/11/05/inside-the-democrats-godawful-midterm-election-wipeout.html
How do they know what stories to load in?
Thanks!
If you're using the InfiniteAjaxScroll library, the "next story" is whatever link you define as the next URL which can be dynamic for each story you load.
Imagine your first story's HTML as something like this
<div class="stories">
<div class="story">
...
</div>
</div>
<div id="pagination">
next
</div>
Then in the storyC.html you have
...
<div id="pagination">
next
</div>
Assuming you're using some sort of dynamic backend, you would use some sort logic to grab a related story and just set that URL as the "next" URL.
I have this problem I'm facing. I have been working on a project using Grails based on the advice from a friend. I'm still a novice in using Grails, so any down to earth explanation would be highly welcomed.
My project is a web application which scans broken or dead links and displays them on a screen. The main application is written in Java, and it displays the output (good links, bad links, pages scanned) continuously on the system console as the scan goes on. I've finished implementing my UI, controllers, views, database using Grails. Now, I will like to display actively in a section of my GSP page say forager.gsp the current link being scanned, the current number of bad links found and the current page being scanned.
The attempts I have tried in implementing this active display include storing the output my application displays on the console in a table in my database. This table has a single row which is constantly updated as the current paged scanned changes, number of good links found changes and number of bad links found changes. As this particular table is being updated constantly, I've written an action in my controller which reads this single line and renders the result to my UI. The problem I'm now facing is that I need a way of constantly updating the result being displayed after an interval of time in my UI. I want the final output to look like
scanning: This page, Bad links: 8, good links: 200
So basically here is my controller action which reads the table from the database
import groovy.sql.Sql
class PHPController {
def index() {}
def dataSource
def ajax = {
def sql = new Sql(dataSource)
def errors = sql.rows("SELECT *from links")
render (view: 'index', template:'test', model:[errors:errors])
}
}
Here is the template I render test.gsp
<table border="0">
<g:each in="${ errors }" var="error">
<tr><td>${ error.address }</td><td>${ error.error}</td><td>${ error.pageLink}</td></tr>
</g:each>
</table>
For now I'm working with a test UI, which means this is not my UI but one I use for testing purposes, say index.gsp
<html>
<body>
<div><p>Pleaseeee, update only the ones below</p></div>
<script type="text/javascript">
function ClickMe(){
setInterval('document.getElementById("auto").click()',5000);
alert("Function works");
}
</script>
<div id="dont't touch">
<g:formRemote url="[controller:'PHP', action:'ajax']" update="ajaxDiv"
asynchronous="true" name="Form" onComplete="ClickMe()" after="ClickMe()">
<div>
<input id="auto" type="button" value="Click" />
</div>
</g:formRemote>
<div id="ajaxDiv">
<g:render template="/PHP/test"/>
</div>
</body>
</html>
The div I'm trying to update is "ajaxDiv". Anyone trying to answer this question can just assume that I dont have an index.gsp and can propose a solution from scratch. This is the first time I'm using Grails in my life so far, and also the first time I'm ever dealing with ajax in any form. The aim is to dynamically fetch data from my database and display the result. Or if someone knows how to directly mirror output from the system console unto the UI, that will also be great.
It sounds like a form would be appropriate for your needs. Check out the Grails documentation on forms. You should be able to render a form with the values you would like without too much trouble. Be sure to pay attention to your mapping and let me know if you have any questions after you have set index.gsp up to render a form for your values.
I'm using the Jquery UI tabs functionality to load content via ajax. I'd like to load a particular div in the ajax call, not the entire page. Is this possible without using jQuery's load()?
As you can see from the code, it's a stock standard basic jQuery tabs implementation, but I want a particular div rather than the full page.
Here's my html:
<div id="tabs">
<ul>
<li>Tab One</li>
<li>Tab Two</li>
<li>Ajax tab</li>
</ul>
<div id="tab-1>Tab one content</div>
<div id="tab-2>Tab two content</div>
</div>
And the inline script:
<script>
$(function() {
$( "#tabs" ).tabs();
});
</script>
Anyone know if this is possible?
Nathan.
Yes, it is possible. Use jQuery ajax "load" function. Example:
$('#result').load('ajax/test.html #container');
For your 3rd tab you should manually load content via ajax call, also you can define selector which exactly part of loaded page you need. So, create 3rd tab as via general way, load page content for 3rd tab and create tabs. Or you can dynamically load 3rd tab's content when the user clicks on tab.
More information here: http://api.jquery.com/load/, please see paragraph "Loading Page Fragments".