This document provides an introduction to customizing views using Views hooks and handlers in Drupal. It begins with an overview of the target audience and goals. It then covers Views hooks, which allow modifying views at different stages of processing, and Views handlers, which allow creating custom fields, filters, and other components. Examples are provided for a custom date filter handler and date field handler related to tracking zombies. The document concludes with tips on documentation and contacting the author.
Writing Views Style Plugins for Drupal. A talk by Matthew Wrather of Wrather Creative, given at a Greater Los Angeles Drupal High Performance Meetup, Hosted by Filter Digital in Culver City, CA on June 18, 2013.
JD17NL Joomla! Overrides and alternate layoutsHans Kuijpers
Stop using extensions for where Joomla! core fits your needs. You can create nice view overrides or alternate layouts. This session shows you how to override output of com_content and mod_articles_news. Grab some parameters and contents or add your own with custom fields and create individual layouts for your website.
This presentation was held during the Dutch Joomla! Days 2017 Woudschoten, Zeist, The Netherlands on April 2. This presentation was prepared by Elisa Foltyn and presented by Hans Kuijpers
Build a WordPress theme from HTML5 template @ TelerikMario Peshev
How to build a WordPress theme out of HTML5 template, integrate dynamic components such as menus, sidebars and comment areas and use widget blocks for static sliced content.
at Telerik Academy, 19 Jun 2012
Writing Views Style Plugins for Drupal. A talk by Matthew Wrather of Wrather Creative, given at a Greater Los Angeles Drupal High Performance Meetup, Hosted by Filter Digital in Culver City, CA on June 18, 2013.
JD17NL Joomla! Overrides and alternate layoutsHans Kuijpers
Stop using extensions for where Joomla! core fits your needs. You can create nice view overrides or alternate layouts. This session shows you how to override output of com_content and mod_articles_news. Grab some parameters and contents or add your own with custom fields and create individual layouts for your website.
This presentation was held during the Dutch Joomla! Days 2017 Woudschoten, Zeist, The Netherlands on April 2. This presentation was prepared by Elisa Foltyn and presented by Hans Kuijpers
Build a WordPress theme from HTML5 template @ TelerikMario Peshev
How to build a WordPress theme out of HTML5 template, integrate dynamic components such as menus, sidebars and comment areas and use widget blocks for static sliced content.
at Telerik Academy, 19 Jun 2012
Writing PHP – The WordPress Way! by Rahul Bansal @WordCamp Mumbai 2017rtCamp
These slides cover common mistakes PHP programmers often make when they join the WordPress ecosystem.
There are few PHP functions for which WordPress has its API. One common case is use of PHP’s curl() function instead of using wp_remote_*() functions.
Using WordPress equivalent has its benefits.
jQuery For Beginners - jQuery Conference 2009Ralph Whitbeck
The first part of a three part beginner track, this talk is for the designer/developer that is just starting out with jQuery. Perhaps you’ve heard of jQuery or you’ve used it occasion- ally, this talk will help you understand the core jQuery library.
We will:
•Cover jQuery’s history
•Introduce you to the core team
•Explain how jQuery works
•Demonstrate how to set-up jQuery
•Explore core jQuery methods and structure • Look through a couple of real-world examples
Optimising Your Front End Workflow With Symfony, Twig, Bower and GulpMatthew Davis
We take great care in our back end coding workflow, optimising, automating and abstracting as much as is possible. So why don't we do that with our front end code?
We'll take a look at some tools to help us take our front end workflow to the next level, and hopefully optimise our load times in the process!
We'll be looking at using Twig templates and optimising them for the different areas of your application, integrating Bower and Gulp for managing assets and processing our front-end code to avoid repetitive tasks - looking at how that impacts the typical Symfony workflow.
There is often a vocabulary gap between designers an developers, who should aim towards a ubiquitous way of conversing about colours, typography, viewport sizes, or the responsive grid system of a digital product… To bridge this gap at the Guardian, we use a CSS pre-processor as a communication enabler through the abstractions it allows us to put in place.
Talk given at re:revelop 2014 in Bournemouth on 22/08/2014: http://redevelop.io/
UX Nights Vol. LIV
Sistemas de Diseño / Design Systems
Ciudad de México
En esta presentación se habla sobre cómo funciona el sistema de Atomic Design para crear sistemas de diseño personalizados y una introducción para su implementación con PatternLab.
Slides from Frederic G. MARAND's "Developing to the Views 7.3 API" at the Drupal Dev Days in Brussels, 2011-02-05.
More details and code access on my blog.
Copy of the slides from the Advanced Web Development Workshop presented by Ed Bachta, Charlie Moad and Robert Stein of the Indianapolis Museum of Art during the Museums and the Web 2008 conference in Montreal
WordCamp Greenville 2018 - Beware the Dark Side, or an Intro to DevelopmentEvan Mullins
Crash course introduction to web development for WordPress covering acronyms, buzzwords and concepts that often leave outsiders mystified. Overview of primary development processes and what software and tools are needed to play the game. We’ll cover what you need to go from zero to developer and hopefully how to have fun on the way. WordPress development tools explained for beginners: ftp, git, svn, php, html, css, sass, js, jquery, IDEs, themes, child themes, the Loop, hooks, APIs, CLI, agile, bootstrap, slack, linting, sniffing … etc.
Drupal Theme Development - DrupalCon Chicago 2011Ryan Price
This class is intended for people who know some HTML and CSS, and covers the fundamental principles of Drupal theming geared toward people who wish to take a static mockup of a site design and turn it into a Drupal theme. You will also learn about using base themes, grid-based layout and helper modules to streamline and customize your Drupal theme.
Trainer Ryan Price has built entertainment sites, social networks, and eCommerce sites for clients including Popular Science, Field and Stream and Outdoor Life magazines. With over 10 years of experience building sites with PHP and other technologies, Ryan began immersing himself in Drupal around 2006. Ryan often teaches and writes articles along with Mike Anello, and the duo is also known for producing the DrupalEasy Podcast with their host Andrew Riley.
12 core technologies you should learn, love, and hate to be a 'real' technocratlinoj
Presentation at PodCamp New Hampshire 2009
A "dim sum" (light sampling) of core technologies which everyone who considers themselves a "technocrat" should have some understanding and appreciation. Since there's a lot to cover, each topic will move pretty quickly, keeping the descriptions at a conceptual level.
Writing PHP – The WordPress Way! by Rahul Bansal @WordCamp Mumbai 2017rtCamp
These slides cover common mistakes PHP programmers often make when they join the WordPress ecosystem.
There are few PHP functions for which WordPress has its API. One common case is use of PHP’s curl() function instead of using wp_remote_*() functions.
Using WordPress equivalent has its benefits.
jQuery For Beginners - jQuery Conference 2009Ralph Whitbeck
The first part of a three part beginner track, this talk is for the designer/developer that is just starting out with jQuery. Perhaps you’ve heard of jQuery or you’ve used it occasion- ally, this talk will help you understand the core jQuery library.
We will:
•Cover jQuery’s history
•Introduce you to the core team
•Explain how jQuery works
•Demonstrate how to set-up jQuery
•Explore core jQuery methods and structure • Look through a couple of real-world examples
Optimising Your Front End Workflow With Symfony, Twig, Bower and GulpMatthew Davis
We take great care in our back end coding workflow, optimising, automating and abstracting as much as is possible. So why don't we do that with our front end code?
We'll take a look at some tools to help us take our front end workflow to the next level, and hopefully optimise our load times in the process!
We'll be looking at using Twig templates and optimising them for the different areas of your application, integrating Bower and Gulp for managing assets and processing our front-end code to avoid repetitive tasks - looking at how that impacts the typical Symfony workflow.
There is often a vocabulary gap between designers an developers, who should aim towards a ubiquitous way of conversing about colours, typography, viewport sizes, or the responsive grid system of a digital product… To bridge this gap at the Guardian, we use a CSS pre-processor as a communication enabler through the abstractions it allows us to put in place.
Talk given at re:revelop 2014 in Bournemouth on 22/08/2014: http://redevelop.io/
UX Nights Vol. LIV
Sistemas de Diseño / Design Systems
Ciudad de México
En esta presentación se habla sobre cómo funciona el sistema de Atomic Design para crear sistemas de diseño personalizados y una introducción para su implementación con PatternLab.
Slides from Frederic G. MARAND's "Developing to the Views 7.3 API" at the Drupal Dev Days in Brussels, 2011-02-05.
More details and code access on my blog.
Copy of the slides from the Advanced Web Development Workshop presented by Ed Bachta, Charlie Moad and Robert Stein of the Indianapolis Museum of Art during the Museums and the Web 2008 conference in Montreal
WordCamp Greenville 2018 - Beware the Dark Side, or an Intro to DevelopmentEvan Mullins
Crash course introduction to web development for WordPress covering acronyms, buzzwords and concepts that often leave outsiders mystified. Overview of primary development processes and what software and tools are needed to play the game. We’ll cover what you need to go from zero to developer and hopefully how to have fun on the way. WordPress development tools explained for beginners: ftp, git, svn, php, html, css, sass, js, jquery, IDEs, themes, child themes, the Loop, hooks, APIs, CLI, agile, bootstrap, slack, linting, sniffing … etc.
Drupal Theme Development - DrupalCon Chicago 2011Ryan Price
This class is intended for people who know some HTML and CSS, and covers the fundamental principles of Drupal theming geared toward people who wish to take a static mockup of a site design and turn it into a Drupal theme. You will also learn about using base themes, grid-based layout and helper modules to streamline and customize your Drupal theme.
Trainer Ryan Price has built entertainment sites, social networks, and eCommerce sites for clients including Popular Science, Field and Stream and Outdoor Life magazines. With over 10 years of experience building sites with PHP and other technologies, Ryan began immersing himself in Drupal around 2006. Ryan often teaches and writes articles along with Mike Anello, and the duo is also known for producing the DrupalEasy Podcast with their host Andrew Riley.
12 core technologies you should learn, love, and hate to be a 'real' technocratlinoj
Presentation at PodCamp New Hampshire 2009
A "dim sum" (light sampling) of core technologies which everyone who considers themselves a "technocrat" should have some understanding and appreciation. Since there's a lot to cover, each topic will move pretty quickly, keeping the descriptions at a conceptual level.
Flcamp2015 - R.E.A.D: Four steps for selecting the right modulesMichael Miles
One of the most crucial and important steps in building any Drupal project is determing which modules to use. When you are reviewing your functionality needs you may ask yourself:
Where and how can I find the modules I need?
Will this module I found solve my functionality needs?
Will I need to patch this module?
Should I just write my own custom module?
To quickly and correctly answer these questions, there are four simple steps you should follow. It's as simple as learning how to R.E.A.D.
This session goes over the four steps of R.E.A.D, which can help you to quickly and correctly identify which module fits your functionality needs, if you should patch a contrib module or if you should write your own custom module.
This session will use real world examples of using the steps of R.E.A.D to make module decisions. We will also cover the basics and best practices of writing patches and custom modules and how to contribute them back to the Drupal community.
This session is geared towrds developer, site builders and functionality decision makers who consider themselves new to Drupal. This session can also prove to be beneficial to experienced drupalists who want to validate/improve habits they have developed.
Jay Callicott Drupal Views 2.0 PresentationMediacurrent
Introduction to Views 2.0
Why views?
Advantages of using views over database queries
Db query vs Views side by side comparison
Theme-centric vs Logic-centric approaches to view creation
A case study on 2 main strategies for creating views
Views 2.0 Wrap Up & Q&A
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
Welocme to ViralQR, your best QR code generator.ViralQR
Welcome to ViralQR, your best QR code generator available on the market!
At ViralQR, we design static and dynamic QR codes. Our mission is to make business operations easier and customer engagement more powerful through the use of QR technology. Be it a small-scale business or a huge enterprise, our easy-to-use platform provides multiple choices that can be tailored according to your company's branding and marketing strategies.
Our Vision
We are here to make the process of creating QR codes easy and smooth, thus enhancing customer interaction and making business more fluid. We very strongly believe in the ability of QR codes to change the world for businesses in their interaction with customers and are set on making that technology accessible and usable far and wide.
Our Achievements
Ever since its inception, we have successfully served many clients by offering QR codes in their marketing, service delivery, and collection of feedback across various industries. Our platform has been recognized for its ease of use and amazing features, which helped a business to make QR codes.
Our Services
At ViralQR, here is a comprehensive suite of services that caters to your very needs:
Static QR Codes: Create free static QR codes. These QR codes are able to store significant information such as URLs, vCards, plain text, emails and SMS, Wi-Fi credentials, and Bitcoin addresses.
Dynamic QR codes: These also have all the advanced features but are subscription-based. They can directly link to PDF files, images, micro-landing pages, social accounts, review forms, business pages, and applications. In addition, they can be branded with CTAs, frames, patterns, colors, and logos to enhance your branding.
Pricing and Packages
Additionally, there is a 14-day free offer to ViralQR, which is an exceptional opportunity for new users to take a feel of this platform. One can easily subscribe from there and experience the full dynamic of using QR codes. The subscription plans are not only meant for business; they are priced very flexibly so that literally every business could afford to benefit from our service.
Why choose us?
ViralQR will provide services for marketing, advertising, catering, retail, and the like. The QR codes can be posted on fliers, packaging, merchandise, and banners, as well as to substitute for cash and cards in a restaurant or coffee shop. With QR codes integrated into your business, improve customer engagement and streamline operations.
Comprehensive Analytics
Subscribers of ViralQR receive detailed analytics and tracking tools in light of having a view of the core values of QR code performance. Our analytics dashboard shows aggregate views and unique views, as well as detailed information about each impression, including time, device, browser, and estimated location by city and country.
So, thank you for choosing ViralQR; we have an offer of nothing but the best in terms of QR code services to meet business diversity!
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
2. Target Audience
Experience creating views through the UI
Basic working knowledge of PHP
Basic understanding of object-oriented PHP helpful, not
required
No Views development experience
3. What we will cover
How to act upon and change Views using Views hooks
Building blocks for creating your own custom fields
and filters (and by extrapolation, your own custom
sorts, arguments, etc.)
4. What we will not cover
How to use the Views UI
How to theme views
5. Background
Drupal themer and site builder for several years
Module development for about a year
Needed to do highly custom views for a client
10. Goals
Provide conceptual overview
Show where to find documentation
Give tips for searching and deciphering Views code
Illustrate the concepts with examples
Equip you to learn more on your own
Strike a balance between clarity and not insulting your
intelligence
11. Example Use Case
Zombie Outbreak!
Report of zombies reanimated and destroyed, and
number of brains consumed
Image “Brackishfairy of the DEAD” by Shannon Hayward used under a Creative
Commons Attribution 2.0 License
http://www.flickr.com/photos/sketchink/2314369576/
13. Views API Overview
Views Hooks
Procedural programming
Syntax familiar to
module developers and
to themers who use
preprocess functions
Useful for simple
overrides and for
exposing data to Views
classes
Views Classes and Objects
Object-oriented PHP
Useful for creating
custom fields, filters,
sorts, arguments,
relationships, etc.
17. Views Hooks
A lot of useful views hooks intercept and change a
view as it's being built
Each of these hooks acts on the view at a particular
stage of the 'Views Lifecycle'
18. Views Lifecycle Hooks
View Phase
Hook Run Before
Hook Run After
Use
pre_execute()
hook_views_pre_view()
NA
Affect the view early in its lifecycle
build()
hook_views_pre_build()
hook_views_post_build()
Affect the view immediately before or
after it builds the query
execute()
hook_views_pre_execute()
hook_views_post_execute()
Affect the view immediately before or
after the query runs
render()
hook_views_pre_render()
(Themes can also use this
hook)
hook_views_post_render()
Affect the view immediately before or
(Themes can also use this hook) after the HTML markup is generated
19. Learning about Views
Lifecycle Hooks
Method 1: Contrib Module API Documentation Sites (e.g.
drupalcontrib.org)
Yes, you get SOME information by searching for
hook_views_pre_build, hook_views_pre_execute, etc.
BUT, you get more context by seeing where these hooks
are invoked in the view build process
Search for:
view::pre_execute
view::build
view::execute
view::render
21. Learning about Views
Lifecycle Hooks
Method 2: Look at where the hooks are invoked in the
view object
You can find the $view->pre_execute(), $view->build(),
$view->execute(), and $view->render() methods in:
views/includes/view.inc
27. Creating a Handler File
Find an existing handler similar to what you want to
create
Copy the file with the handler definition into your
module directory
Rename the handler file
merlinofchaos recommends this naming convention:
[module]_handler_[type]_[tablename]_[fieldname]
(You don't actually have to be this verbose)
28. Creating a Handler File
Change the class name in the handler file
Delete the functions you don't want to override
Edit the functions you DO want to override
30. Making Views Aware
of Your Handler
Drupal 7 method: Load in your module's .info file
31. Exposing Data
to Your Handler
hook_views_data()
Use to create new handlers (e.g., a new field you can add
through the Views UI)
Expose data from the database that is not already
exposed to Views
hook_views_data_alter()
Use to force existing fields, filters, etc to load your
handler instead of the existing handler -orChange the data exposed to the existing handler
34. hook_views_data_alter()
Easier place to start – just override an existing handler
Figuring out what to override
1. Determine the existing handler: dpm($view) inside one
of the Views lifecycle hooks
2. Determine where in the $data array to put your override:
dpm($data) in hook_views_data_alter() and clear cache
36. Class Inheritance
in Field Example
zombies_handler_field_field_data_field_destruction_date
views_handler_field_field
views_handler_field
views_handler
views_object
37. Handler Method
Documentation
A few commonly-used methods documented in
advanced_help
Drupalcontrib.org: search for
class_name::method_name (e.g.
views_handler_field_field::render_items)
Comments in the code itself
40. Filter Handler Example
Default filter: zombie destruction date >= input date
If the zombie destruction date is NULL (zombie has not
been destroyed, yet), this does not give us result we
want
41. Filter Handler Example
Add new check box in admin UI:
'Allow content with an empty date field to pass filter'
42. Class Inheritance
in Filter Example
zombies_handler_filter_field_destruction_date
date_views_filter_handler_simple
views_handler_filter_date
views_handler_filter_numeric
views_handler_filter
views_handler
views_object
44. Views Hooks
Make Views aware of your module: hook_views_api()
Act on your view during the view build process: Views
lifecycle hooks
Provide data to your handlers: hook_views_data() and
hook_views_data_alter()
47. Documentation
Each of these sources has areas of strength and
weakness; if you don't find a helpful answer in one,
try another
48. General Tips
When in doubt, dpm() everything
grep through the Views directory to find the closest
ancestor class that defines the function you want to
override
49. Credits
Artwork by Shannon Hayward used under a Creative Commons
Attribution 2.0 license
Brackishfairy of the DEAD:
http://www.flickr.com/photos/sketchink/2314369576/
JASON of the DEAD:
http://www.flickr.com/photos/sketchink/2776234924/
RANDI of the DEAD:
http://www.flickr.com/photos/sketchink/2776238718/
Untitled: http://www.flickr.com/photos/sketchink/5476952538/
Untitled: http://www.flickr.com/photos/sketchink/5476953706/
50. Credits
Miles, E., Miles, L., Hogbin, E. J., & Stevenson, K. (2011). Drupal's
building blocks: Quickly building web sites with CCK, Views,
and Panels. Upper Saddle River, NJ: Addison-Wesley.
51. How to Stalk Me
dan@danmuzyka.com
drupal.org/user/48685
groups.drupal.org/user/8040
@danmuzyka
facebook.com/danmuzyka
linkedin.com/in/danmuzyka
IRC: danmuzyka