-
Recently Browsing 0 members
No registered users viewing this page.
-
Similar Content
-
By Sephiroth
Hi, So today I will writing a small tutorial on developing templates in Processwire using Twig Template, Processwire is a highly flexible CMS which gives developers/designers/users options and allows easy extension of the platform. So here goes the tutorial
What is Twig Template ?
Simply put in my own words, Twig is a modern templating engine that compiles down to PHP code, unlike PHP, Twig is clean on the eyes , flexible and also quite *easy* to have dynamic layout site with ease ,without pulling your hair out. Twig is trusted by various platforms. It was created by the guys behind Symfony.
Take this code as an example
{% for user in users %} <h1>* {{ user }}</h1> {% endfor %} This will simply be the equivalent in PHP World
<?php $userArray = ["Nigeria","Russia"]; foreach($userArray as $user): ?> <h1><?= $user ?></h1> <?php endforeach; The PHP code though looks simple enough however, you start to notice that you have to be concerned about the PHP tags by ensuring they are closed properly , most times projects gets bigger and comes complex and harder to read/grasp, and also in PHP you can explicitly create variables in the template making it very hard to read as it grows and prone to getting messy WordPress is a major culprit when it comes to that regard.
Have you ever wanted to created separate layouts for different pages and break your sites into different parts e.g Sidebar, Comment Section, Header Section ? the regular approach would be to create individual pages for each section and simply add them as templates for the pages and with time, you can end up having tons of templates, however Twig allows you to easily inherit templates and also override the templates where you can inject content into the block easily. Don't worry if you don't understand the concept, the following parts will explain with an example of how to easily inherit layouts and templates.
Layout
<!DOCTYPE html> <html lang="en"> <head> {{include("layout/elements/header.twig")}} </head> <body> <div class="container-fluid" id="minimal"> <header id="pageIntro"> <div class="bio_panel"> <div class="bio_section col-md-6"> <h1>Okeowo Aderemi</h1> <h2>{{ page.body }}</h2> </div> </div> <div class="clearfix"></div> </header> <section id="page-body"> <div class="container"> <div id="intro" class="col-md-7 col-lg-7"> <h1>About me</h1> <h2> {{ page.summary }} </h2> </div> {block name="content"}{/block} <a style="font-size:1.799783em; font-style:italic;color:#d29c23" href="{{pages.get('/notes').url }}">Read more articles</a> </div> <div class="clearfix"></div> </div> </section> </div> <footer> <div class="header-container headroom headroom--not-top headroom--pinned" id="header-container"> {{include("layout/elements/footer.twig")}} </div> </footer> </body> </html> This is basically a layout where we specify blocks and include other templates for the page, don't panic if you don't understand what is going on, I will simply break down the weird part as follows:
Include
This basically is similar to native PHP 'include', as it's name suggests it simply includes the templates and injects the content into the layout , nothing out of the ordinary here if you are already familiar with php's include function.
{{ output }}
This simply evaluates the expression and prints the value, this evaluate expressions, functions that return contents , in my own short words it's basically the same as <?= output ?> except for the fact that it's cleaner to read.
{% expression %}
unlike the previous this executes statements such as for loops and other Twig statements.
{% for characters in attack_on_titans %} <h1> {{characters}} </h1> {% endfor %} This executes a for loop and within the for loop, it creates a context to which variables in that context can be referenced and evaluated, unlike dealing with the opening and closing PHP tags, Twig simply blends in with markup and makes it really quick to read.
I will simply post the contents of both the header and footer so you can see the content of what is included in the layout
header.php
<meta charset="utf-8"/> <meta content="IE=edge" http-equiv="X-UA-Compatible"/> <meta content="width=device-width, initial-scale=1" name="viewport"/> <title> {{ page.title }} </title> <link href=" {{config.urls.templates }}assets/css/bootstrap.min.css" rel="stylesheet"/> <link href="{{config.urls.templates }}assets/css/main.min.css" rel="stylesheet"/> <link rel='stylesheet' type='text/css' href='{{config.urls.FieldtypeComments}}comments.css' /> <link rel="stylesheet" href="{{config.urls.siteModules}}InputfieldCKEditor/plugins/codesnippet/lib/highlight/styles/vs.css"> <script type="text/javascript" src="{{config.urls.siteModules}}InputfieldCKEditor/plugins/codesnippet/lib/highlight/highlight.pack.js"></script> <script src="{{config.urls.templates }}assets/js/vendors/jquery-1.11.3.min.js"> </script> <script src="{{config.urls.templates }}assets/js/vendors/bootstrap.min.js"> </script> <script src="{{config.urls.FieldtypeComments}}comments.js"></script> <link rel="stylesheet" type='text/css' href="{{config.urls.templates}}js/jquery.fancybox.min.css"> <script src="{{config.urls.templates}}js/jquery.fancybox.min.js"></script> {block name="javascriptcodes"}{/block} footer.php
<nav class="site-nav pull-right"> <div class="trigger"> <a class="page-link" href="{{pages.get('/about').url}}"> <span>{</span> About <span>}</span> </a> <a class="page-link" href="{{pages.get('/notes').url}}"> <span>{</span> Journals <span>}</span> </a> <a class="page-link" target="_blank" href="https://ng.linkedin.com/in/okeowo-aderemi-82b75730"> <span>{</span> Linkedin <span>}</span> </a> <a class="twitter page-link" target="_blank" href="https://twitter.com/qtguru"> <span>{</span> Twitter <span>}</span> </a> </div> </nav> There's nothing special here, other than twig simply injecting these fragments into the main layout , the next part is the most interesting and important concept and benefit that Twig has to offer
{% block content %}{% endblock %}
This tag simply creates a placeholder in which the content would be provided by the template inheriting this layout, in lay terms it simply means child templates will provide content for that block, the 'content' simply uses the name 'content' to refer to that specific block, so assuming we were to inherit this template it would simply look like this.
Inheriting Template Layout
{% extends 'layout/blog.twig' %} {% block content %} <div class="container blog-container"> <section class="blog"> <header class="blog-header"> <h1> {{page.title}} </h1> <h5 class="blog_date"> {{page.published|date("F d, Y")}} </h5> <br> </br> </header> <div class="blog_content"> <hr class="small" /> {{page.body}} <hr class="small" /> </div> </section> </div> {% endblock %} {% block nav %} <div class="col-md-4 col-xs-4 col-sm-4 prev-nav"> <a href="{{page.prev.url}}"> ← Prev </a> </div> <div class="col-md-4 col-xs-4 col-sm-4 home-nav"> <a href="{{homepage.url}}"> Home </a> </div> <div class="col-md-4 col-xs-4 col-sm-4 next-nav"> <a href="{{page.next.url}}"> Next → </a> </div> {% endblock %} In this snippet you can easily notice how each blocks previously created in the header and layout are simply referenced by their names, by now you will notice that twig doesn't care how you arrange the order of each block, all Twig does is to get the contents for each blocks in the child templates and inject them in the layout theme, this allows flexible templating and also extending other layouts with ease.
Twig in Processwire
Thanks to @Wanze we have a Twig Module for Processwire and it's currently what i use to build PW solutions to clients
https://modules.processwire.com/modules/template-engine-twig/
The Modules makes it easy to not only use Twig in PW but also specify folders to which it reads the twig templates, and also injects Processwire objects into it, which is why i can easily make reference to the Pages object, another useful feature in this module is that you can use your existing template files to serve as the data provider which will supply the data to be used for twig template.
take for example, assuming I wanted the homepage to display the top six blog posts on it, TemplateEngineTwig will simply load the home.php ( Depending on what you set as the template), it is also important that your twig file bears the same name as your template name e.g home.php will render into home.twig here is an example to further explain my point.
home.php
<?php //Get the Top 6 Blog Posts $found=$pages->find("limit=6,include=hidden,template=blog-post,sort=-blog_date"); $view->set("posts",$found);
The $view variable is the TemplateEngine which in this case would be Twig, the set method simply creates a variables posts which holds the data of the blog posts, the method allows our template 'blog.twig' to simply reference the 'posts' variable in Twig Context. Here is the content of the 'blog.twig' template
blog.tpl
{% extends 'layout/blog.twig' %} {% block content %} <div class="block_articles col-md-5 col-lg-5"> {% for post in posts %} <div class="article_listing"> <span class="article_date"> {{post.published}}</span> <h2 class="article_title"> <a href="{{post.url}}">{{post.title}}</a> </h2> </div> {% endfor %} {% endblock %} So home.php sets the data to be used in home.tpl once Twig processes the templates and generates the output, twig takes the output from the block and injects it in the appriopriate block in the layout, this makes Processwire templating more flexible and fun to work with.
The major advantage this has; is that you can easily inherit layouts and provide contents for them with ease, without the need of running into confusions when handling complex layout issues,an example could be providing an administrator dashboard for users on the template side without allowing users into the Processwire back-end. You can also come up with several layouts and reusable templates.
Feel free to ask questions and any concerns in this approach or any errors I might have made or overlooked.
Thanks
-
By Sabrina
Hi,
I would like to start tracking my website visitors with Leady software. Searched the forum for similar discussion yet did not find the right answer. Could you please tell me how can I add their javascript to my website? Is there any step by step guide available?
Any help appreciated.
-
By pycode
Hello PW,
discovered few days ago this awesome cms and now want to start a project on it, but need some help. I'm coming from the drupal side, which I kinda like, but it is not usable for smaller projects like I need now. I like it's way to build to content from the ground up, but it feels heavy, don't know why. PW feels really light and want to give it a try.
Long story short, development it is a hobby for me, so everything I do is self-learned throw try & error, no programming skills yet. I want to learn JS now, and for that, want to translate a website to my native Romanian language so I can learn myself and others in the future. The site I'm talking about is www.learn.javascript.ru
I want to build a similar structured site (please see the attached image):
Home / Projects / About will be basic page template based, no problem with them.
mysite.com/javascript/
Starting Learn JavaScript will be a basic page template as well, I can make it statit, as it will contain some info and links to the Sections of the JS theory pages.
mysite.com/javascript/section-name/
By accessing a section page, I want to see again some description text and links of the attached unit pages to this section, so when I open any section it shows me all the attached unit pages to it. On the sidebar, I need to render links to all the sections, just that.
Next is unit pages like mysite.com/javascript/section-name/unit-name/
Here goes the units text, main content in other words, like a blog post. The key point is to have a dropdown and select the section page for it. For sidebar, I want to render the list with links for every headline from the unit page. Will do it by using Jumplinks Hanna Code, I believe it will do the job perfectly.
Who can give me a hand with the templates?
first /javascript/ page I can do as a basic page.
next /javascript/section-name/ don't know. what fields should it contain for linking units?
and last /javascript/section-name/unit-name/ again, what field needs to be used for linking? Page refference I believe?
How I write it to templates?
Would be gratefull for your help guys,
Thank you
-
By JeevanisM
Hello All,
I started with Joomla on this CMS parade. Then later I put my hands on Wordpress and eventually settled into Concrete 5. Recently I came to know about ProcessWire CMS, while I was looking for a better replacement for Concrete 5 in terms of robust, easiness, compact. I went through few Video tutorials of PW and read the documentation. The installation of PW was smoothy.
The concept of Page is awsome. I like the relation of Page, Fields & Templates. There are many things I can equal to Concrete 5 from ProcessWire, yet PW offers a tiny minimal, code level approach for CMS. We have full control over design & data. There are some pitfalls I felt such no sitewide settings, global logo setup etc but it is easily tackled with some API codes. PW api seems amazing, it is par with what Concrete 5 Offers.
I have done a simple website in ProcessWire now and going to do a lot further :
http://insignnia.in/
-
By alxndre
Easiest, fastest, most reliable framework.
Considering my workload this past weeks, I'm considering on switching.
It supports a wide range of applications:
-
