Pagy
stimulus-use
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Pagy | stimulus-use | |
---|---|---|
10 | 9 | |
4,460 | 1,389 | |
- | 2.8% | |
9.5 | 8.7 | |
1 day ago | 4 days ago | |
Ruby | JavaScript | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Pagy
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Build Load More Pagination with Pagy and Rails Hotwire
Now, let's dive into the pagination part of this post: setting up Pagy for handling pagination in our Rails application. If you haven't included the Pagy gem in your project, you'll need to add it manually. Here's how you can do it:
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Pagination in Rails with Pagy gem
Several gems are available for pagination in Rails, but the Pagy gem is one of the most popular and efficient. It is a fast and lightweight library that provides a simple and flexible API. In this article, we’ll explore how to use it to implement pagination in Rails.
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Rux: A JSX-inspired way to render view components in Ruby
> Am I understanding correctly that there’s a significant difference in performance between using a ViewComponent + a partial vs. a ViewComponent which renders html via a tag - from inside the component?
I don't think there will be much difference at all in everyday use, but some libraries that value performance don't avoid templates for that reason, Pagy for example.
https://github.com/ddnexus/pagy
Personally I omit them in my projects whenever we want to customise attributes, I hate seeing stuff like this in templates:
Some header
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A powerful search feature with what Rails provides out of the box
The next step was about backporting the templates, adding Pagy gem for handling pagination and creating the controller. I was then able to show the listings with the models, but the filtering was not working.
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The Ultimate Search for Rails - Episode 1
On the backend, we'll need a few tools. Apart from the classics (ActiveRecord scopes and the pg_search gem), you’ll see how the (yet officially unreleased but production-tested) all_futures gem, built by SR authors, will act as an ideal ephemeral object to temporarily store our filter params and host our search logic. Finally, we’ll use pagy for pagination duties.
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My project: railstart app
Pagination
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Pagination and infinite scrolling with Rails and the Hotwire stack
In our application, we will use Pagy to implement pagination. Let’s install Pagy now, following along with the Pagy quick start guide.
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Load More Pagination in Rails with Hotwire Turbo Streams
For pagination I tend not to use gems like pagy or kaminari, instead implement this functionality just using limit and offset.
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Ten Ruby gems for Rails you should definitely know about
Kaminari hooks onto ActiveRecord associations and makes it super easy to page them. Pagy is another option that seems to have a solid API but I haven't tried it yet.
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Re-Wheel series part 1 - How does Rails' find_each work?
But how is this implemented? Well, if you use pagination in your index methods with gems like pagy, kaminari or will_paginate you will find that the same idea is happening here, they are using the power of SQL's LIMIT and OFFSET to fetch only a portion of the data each time. So in the 1 million users example, find_each will perform 1000 thousand queries with a limit of 1000 while changing the offset properly so we don't miss any record.
stimulus-use
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A powerful search feature with what Rails provides out of the box
You can see that I added a dependency here: stimulus-use.
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Discover Symfony UX’s Twig Components. UI without JS or BS.
“stimulus-use: Add composable behaviors to your Stimulus controllers, like debouncing, detecting outside clicks and many other things.
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RVTWS: a Ruby stack for modern web apps
Actually, Stimulus is pretty cool because you can compose multiple pre-built behaviors into one Stimulus controller, for a sort of functional approach to component behaviors. The tradeoff is that a growing web of Stimulus controllers (plus HTML data attributes associated with them) can become complex and hard to understand.
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Tailwind style CSS transitions with StimulusJS
The stimulus-use project is a collection of reusable behaviors for Stimulus. If you are familiar with React, this project is similar to React’s hooks system, but for Stimulus controllers.
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Pagination and infinite scrolling with Rails and the Hotwire stack
To make using the IntersectionObserver API easier, we will add the wonderful stimulus-use package to our application. This is not a requirement, but it does simplify the code a bit.
- Autocomplete search with Hotwire (zero lines of Stimulus or other JS)
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Upgrade to Stimulus 3, say bye to IE11, and celebrate 🎉
Finally, as we recently added the Stimulus-Use library to our project, we made sure to upgrade it to current beta which supports Stimulus 3.
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Hotwire: best practices for stimulus
As you’ll see below, I am importing useClickOutside from stimulus-use, it’s a great library with small, composable helpers, I urge you to check it out!
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Migrating Selenium system tests to Cuprite
For example, we have a few ”live search“ fields, backed by back-end Fetch requests, on some pages. The live search function was usually triggered by the keyup event and Cuprite was such a fast typewriter that it frequently sent multiple requests almost at once. If some of the responses got a bit late or out of sync, the front-end JavaScript code began hitting issues. We solved this by adopting a technique called debouncing and, frankly, we should have done this since the beginning. By the way, we used the useDebounce module from the marvelous Stimulus-use library to achieve this.
What are some alternatives?
Kaminari - ⚡ A Scope & Engine based, clean, powerful, customizable and sophisticated paginator for Ruby webapps
Capybara - Acceptance test framework for web applications
will_paginate - Pagination library for Rails and other Ruby applications
dropzone - Dropzone is an easy to use drag'n'drop library. It supports image previews and shows nice progress bars.
order_query - Find next / previous Active Record(s) in one query
hotwire-example-template - A collection of branches that transmit HTML over the wire.
tailwindcss-rails
cuprite - Headless Chrome/Chromium driver for Capybara
strong_migrations - Catch unsafe migrations in development
cssui - A collection of interactive UI components in pure CSS
phony_rails - This Gem adds useful methods to your Rails app to validate, display and save phone numbers. It uses the super awesome Phony gem (https://github.com/floere/phony).
ferrum - Headless Chrome Ruby API