Simon Thépot djcoin

Untitled notebook

Mix.install [
  {:exla, github: "elixir-nx/nx", sparse: "exla"},
  {:nx, github: "elixir-nx/nx", sparse: "nx", override: true},
  {:pythonx, "~> 0.4.7"}
]

Problem: accidentally pressing 'Esc' when editing a form in a "standard" LiveView modal dialog will discard all edits.

Proposed solution: Make the modal show a confirmation window on close when there have been changes on the form.

LiveView v0.20 was used.

Table of content

PostgreSQL is Enough

Background and Cron Jobs

A half-hour to learn Zig

This is inspired by https://fasterthanli.me/blog/2020/a-half-hour-to-learn-rust/

Basics

the command zig run my_code.zig will compile and immediately run your Zig program. Each of these cells contains a zig program that you can try to run (some of them contain compile-time errors that you can comment out to play with)

	defmodule MyApp.Http do
	@moduledoc """
	Exposes functions to make HTTP requests and optionally cache the response.

	If you want to cache the request, simply add `cache: true` to the
	request options. You can also define an option time-to-live (TTL) with
	`cache_ttl: ttl_in_milliseconds`. The default TTL is 5min.

	Only caches 2xx responses.
	"""

	defmodule Training.Example do
	def train() do
	Nx.default_backend(EXLA.Backend)

	{:ok, spec} =
	Bumblebee.load_spec({:hf, "prajjwal1/bert-medium"},
	module: Bumblebee.Text.Bert,
	architecture: :for_sequence_classification
	)

	defmodule ExampleApp.Web.LiveAcl do
	@moduledoc """
	ACL checks for LiveView

	```
	use ExampleApp.Web.LiveAcl
	```

	Provides an `on_mount` hook to do ACL checks on mount, for instance
	to ensure the current user has access to a given invoice ID.

	defmodule Mix.Tasks.ConvertToVerifiedRoutes do
	@shortdoc "Fix routes"

	use Mix.Task

	@regex ~r/(Routes\.)(.)_(path\|url)\(.?\)/
	@web_module MyAppWeb

	def run(_) do
	Path.wildcard("lib/*/.*ex")

	###
	### [2023-06-19] UPDATE: Just tried to use my instructions again on a fresh install and it failed in a number of places.
	###. Not sure if I'll update this gist (though I realise it seems to still have some traffic), but here's a list of
	###. things to watch out for:
	### - Check out the `nix-darwin` instructions, as they have changed.
	### - There's a home manager gotcha https://github.com/nix-community/home-manager/issues/4026
	###

	# I found some good resources but they seem to do a bit too much (maybe from a time when there were more bugs).
	# So here's a minimal Gist which worked for me as an install on a new M1 Pro.

	defmodule Ecto.Extension.Query.API do
	defmacro cond_(do: block) do
	bindings =
	Enum.reduce(block, [], fn
	{:->, _, [[clause], branch]}, acc ->
	[branch, clause \| acc]
	end)
	\|> Enum.reverse()

	bindings_number = length(bindings)