July 25, 2023

Managing Many-to-Many Relationships in Elixir with Ecto and LiveView

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Managing Many-to-Many Relationships in Elixir with Ecto and LiveView

Source: fly.io

Berenice Medel provides an in-depth guide on efficiently sorting and deleting elements in many-to-many relationships using Ecto's new :sort_param and :delete_param options in conjunction with Phoenix LiveView. The post starts with an overview of defining the necessary Ecto schemas for a bookstore application, where books can have many authors and vice versa. By leveraging the sorting and deletion capabilities, Medel explains how to maintain the association order and clean up unneeded records directly from a LiveView form. The example covers building the changeset functions needed to handle sorting and deletion parameters and dives into how to construct an interactive form for user input. The form utilizes hidden inputs and checkboxes to manage the order and association of authors to books. Lastly, the post touches on some considerations for robustly handling such many-to-many relationships and concludes by showcasing how Fly.io is an excellent place to deploy Phoenix LiveView apps.

Animating a Side Drawer in Phoenix LiveView using JavaScript

Peter Ullrich explains how to animate a side drawer using LiveView in a blog post. They provide code examples and step-by-step instructions for adding show/hide functionality and smooth transitions to the drawer.

Aug 19, 2023

Explanation of syntax for calling anonymous functions in Elixir

In this article by José Valim, he explains why Elixir uses a dot when calling anonymous functions. The main reason for this choice is because functions in Elixir have to be identified by name and arity, and using the dot helps avoid naming conflicts and provides clarity in the code.

Aug 14, 2023

Insights into Elixir's Machine Learning Libraries

Andres C Alejos provides an introduction to machine learning in Elixir and offers a glossary of libraries in the Elixir machine learning ecosystem. He covers libraries such as Elixir-Nx, Axon, Bumblebee, Scholar, Explorer, Scidata, EXGBoost, Ortex, Livebook, and more, highlighting their functionalities and similarities to popular Python libraries.

Aug 17, 2023