Tag Archives: AJAX

JQuery Ajax Development for WordPress

Ajax is popular among many webmasters. The prominent part of it is that it not only loads of contents from the website but also it does load it without refreshing web pages. This means this is not going to have an extra load on databases and loads on the server does not go to be extremely on higher sides.

Fetching of data from databases and then these data are to be embedded within web content even from the front end of websites. WordPress operates in term of the principle of running the front end and back ends servers.

The works that need to be connected with the database are to be done on the back end in normal circumstances as the series of php enabled applications and other database parameters need to be loaded every time there is a client request.

Most of these high-end websites which do interact with client management does need sophisticated forms of coding so that loads of database as well as that of the server to be extremely minimised.

In these circumstances, the role of ajax is very important. It does not load database every time when there is a query from the client side, as it does not refresh the web page or say the database every time when there are related queries, as it continues to provide database information even from the side of the front end that is word press administrator.

Due to this smoothness of functions, most of WordPress web administrators are using ajax while receiving comments, posting and other useful website management.

Most of these works completed without too much load on the server and most of these come in real time and that makes users happy as well as website enable itself to take as much of as loads on the server as it could have been.

Some webmasters are trying hard to create their side with ajax so that each and every element of website run in the form of completely asynchronous manner and the website and server management stays completely secure and that makes the entire running of website and management becomes extremely smother.

Most of content management websites (CMS) such a WordPress, Joomla and so on tries hard to implement ajax in their library.

Content management website runs in two ways. On one side, there is a database and the other side there is a web configuration system and when the database connection with it the clients or visitors finds it at the website.

This process works in three prolonged way as the database, server and then converting these php and other files into HTML so that these are going to be in the legible formats when the user opens the specific domain name on web browsers such as Internet Explorer, Google Chrome, Opera and so on either on desktop or with mobile devices.

That is why in order to reduce these processes and the zeal to make the faster website rendering time so that it is going to be very lesser waiting time for users or clients when they use website in the form of front end and that is where the need and the importance of ajax the major development program for such content management website rises to.

Ajax when used in the back end or on the server side of WordPress, it behaves differently so it is going to be used in a separate manner than that of the way it is used while at the front end of WordPress website.

On the server side of WordPress it works in two ways, the first way is the URL of the WordPress and the second way is the Ajax action hook. The URL of WordPress works closely with admin-ajax.php files and the Ajax action hook works closely with wp_ajax files.

In the URL part of Ajax the data is to be sent for processing and in the second part, custom functions can be hooked into WordPress so as to make the call of different customisation into these types of processing.

The other side is of the security of the server and database. Ajax makes the plugin calls secure on one side but on the other side when the client finds it easier to make the call the hackers or the mischief clients could utilise it to make so much of unnecessary calls without any justification.

That is why when we need to set up the ajax call system we need to implement the security parameters in its perfect postures. There is going to be one middle ground of calling the data and then sanitise it before involving it into the WordPress database.

It is wiser to implement to use ‘nonce’ ajax loop to check whether these requests are coming from the right person or not and it should check each and every location to find out the real requests before it allows the database to operate.

Ajax empowers users to some of the additional performance to be used in the database. It is even done without too much of loads on servers.

It even allows users to create their own set up of favorite posts or lists to be read in later time, though it needs to have interacted with database but still it needs to be learnt and equated with so much of cleaner and safer understanding of receiving and analysing codes so that ultimately the important is to secure the server and nothing more.

The admin-ajax.php is the important part of every ajax related development. When you need to make the call to ajax you first need to utilise it as it is the first part of every series of development and it deals with WordPress core functionalities.

Do not use the direct file request path as it can expose the entire WordPress database and other related environments to the public.

It is going to make your site insecure that is why always hide that part while writing any plugin or other development by the use of Ajax.

It is a wiser idea to use the front end part URL that is WordPress admin URL while writing any of ajax code in its development.

At the first instances while doing ajax for WordPress the developer may find it a daunting task but subsequently they can find it interesting to work deeply with as with due course of time the use of ajax within the responsive website attendance system which is coherently interrelated with development of faster web which means the faster business times and lesser time spent by the client to utilise the entire processes of web development in its complete and faster ways.

While dealing with ajax it is important, you should always escape into output formats and each and every form of inputs needs to be carefully sanitised so as to secure server environment.

Beginners guide to HTML

Ajax as a concept is more of interactive web development and these concepts exist much before it was first coined. With the introduction of advance internet more and more application needs in order to connect to the Internet to provide users with more room for conversation as well as progress of ideas that needs to be conceived by different users in different circumstances. It provides easier ground for web masters to create a space where a particular theme can provide static html inclusions to give examples. With the introduction of iFrame in HTML format web developers can now easily create newer elements inside same static page contents. This provides web masters for a nice collection of different set of internet connectivity where users can browse the web easily effortlessly. Ajax is very easy and with notepad one can write codes with decent knowledge about HTML, XML and HTML. There is no need for an integrated development environment (IDE) to write the ajax code as there is nothing to be compiled after jotting down in code. It is one such brilliant and wonderful part of coding anyone with basic knowledge can write down and find a fair amount of information from it. HTML is easy and there are plenty of online resources in internet where enormous amount of HTML examples is laying there and from there one can learn more about it. In this article, I will try to show you about how to go about HTML which is a requirement for developing ideas of ajax.

Hello World: 

Download “Windows Live writer” and open it in the source code and it is the mode in which one can analyze and define coding. We will start with the basic principle of coding.

<html>
<body>
Hello World
</body>
</html>

List tags: 

Here the expression “Hello World” and it will be seen by the user, and it is enclosed with html begin and end tag. “Hello World” will be seen in the body segment so it is better to include beginning and ending of the body tag. Though many have pleaded that HTML gives way to unnecessary coding and there is no need for the body section but it is the way one can learn in detail how the code process works. Next we will go for a slightly complex algorithm of creating a simple list with my favorite cricket players and all these will be shown in bullet-points. Here, is the code and first you should understand the progress of code. Each segment start with and end with the same parameter.

<html>
<head>
<title>My Favorite Cricketers</title>
</head>
<body>
<ul>
<li>Sachin</li>
<li>Virat</li>
<li>Pujara</li>
<li>Dravid</li>
<li>Dhoni</li>
<li>Dhawan</li>
<li>Ravi jadeja</li>
<li>Varun aron</li>
</ul>
</body>
</html>

Bullet points (ol tags:) 

Html begins and ends with html, then the body begins and ends with the body and then the title of heading begins with the title and ends with the title tag and in between comes the name of title “My favorite cricketers”. Then title stays within head tags which begin and end. Then body part begins, which also ends at some point. List units start with “li” and end with and in between the name of a favorite cricket players. The heading might not be seen to outside and the visible part of coding is the body part and the contents which stays at body parts remains visible to user. “ul” tag is used to define unordered lists and it is used in a number of list tags, if “ul” tag is not used then the list tags could be seen in disorderly way. It is a bright idea to use “ul” tag just after the body tag and just before List tag. “ul” tag is used for bullet points of lists. If you want to use numbered bullet points then simply change the “ul” tag to “ol” tag. Entire names of cricketers in list tags under body segment will be seen with numbers. Here, is the change of code with “ol” tags.

<html>
<head>
<title>My Favorite Cricketers</title>
</head>
<body>
<ol>
<li>Sachin</li>
<li>Virat</li>
<li>Pujara</li>
<li>Dravid</li>
<li>Dhoni</li>
<li>Dhawan</li>
<li>Ravi jadeja</li>
<li>Varun aron</li>
</ol>
</body>
</html>

UL tags: 

Place this code in “Windows Live Writer” and change view section of it from the source to edit or preview to see bullet numbered in action. “ol” tags shows ordered lists and once you learn a bit of HTML, you will soon find out how to differentiate these settings according to demand of developer’s standard. In the above code the title element will not be visible in most cases, and this creates fundamentally different aspect as in many situations you need to show heading , sub heading to differentiate different elements within an article to give a perfect representation of coding side. By using h1 to h6 tags we could insert titles inside of web pages with ease and this will give one of perfect presentation of coding and also this will bring closer to ajax set-up. First to observe this code, most of its tags have been explained and the newer ones will be explained in this paragraph.

<html>
<head>
<title>My Favorite Cricketers</title>
</head>
<body>
<h1>A List of my favorite Cricketers</h1>
<h2>Batters:</h2>
<ul>
<li>Sachin</li>
<li>Dravid</li>
<li>Kohli</li>
</ul>
<h2>Bowlers:</h2>
<ul>
<li>Ravi jadeja</li>
<li>Varun Aron</li>
<li>Umesh Yadav</li>
<li>Amit Mishra</li>
<li>Ishanta Sharma</li>
</ul>
</body>
</html>

Understanding of codes: 

Contents of the title tag are not visible in normal document inside a web browser, but contents of h1 to h6 tags are detectable in normal web-browsers. Title under h1 tag “A list of my favorite cricketers” will be seen in a web browser with prominent. H1 tag begins and ends and then sub heading is within h2 tags and the content of sub heading remains within h2 tag and h2 tag end after sub heading ends there. Here two sub heading h2 tag namely “batters” and “bowlers” are visible and all these can be seen with lesser sizes but more prominent that list-names. It is a very interesting as well as comprehendible understanding of writing coding to become code Jockey. HTML is a powerful language but it runs with tags and decoration of the HTML language is very difficult as designing within HTML tags can be tedious. This leads to the introduction of “Cascading Style Sheets” (CSS). It gives power to the developer to control codes and create dynamic web -presence. It gives color to black and white HTML. In CSS, you need two different approaches to style one are the scope of styling and the other, is the selector.

Conclusion: 

First, you need to determine which part of the page you need to make styling and for this it is essential to define the selector. Here, the name of the tag is the selector and it has more functions than HTML tags have. In the next segment, we will learn about basics of CSS. It is a continuing process.