brainlid’s gists

brainlid / .iex.exs

Created April 2, 2024 12:52

My .iex.exs file that lives in my Home directory. Gets loaded and used in every IEx session on my machines. I borrowed and stole all the great ideas from others an tweaked them over the years.

	Application.put_env(:elixir, :ansi_enabled, true)

	# IEx shell customization for color
	# - Added as a comment: https://thinkingelixir.com/course/code-flow/module-1/pipe-operator/
	# - Original source: https://samuelmullen.com/articles/customizing_elixirs_iex/
	# - Can add to a specific project or can put in the User home folder as a global config.
	# Updates from:
	# - https://github.com/am-kantox/finitomata/blob/48e1b41b21f878e9720e6562ca34f1ce7238d810/examples/ecto_intergation/.iex.exs
	timestamp = fn ->
	{_date, {hour, minute, _second}} = :calendar.local_time

brainlid / index.ex

Last active March 3, 2025 12:55

Example files for a LiveView blog post that starts an async process using Phoenix Async Assigns to perform work and send message back to the LiveView. https://fly.io/phoenix-files/abusing-liveview-new-async-assigns-feature/

	defmodule MyAppyWeb.TaskTestLive.Index do
	use MyAppyWeb, :live_view
	require Logger
	alias Phoenix.LiveView.AsyncResult

	@impl true
	def mount(_params, _session, socket) do
	socket =
	socket
	\|> assign(:async_result, %AsyncResult{})

brainlid / index.ex

Last active January 26, 2025 15:46

Example files for a LiveView blog post that starts an async Task to perform work and send message back to the LiveView. https://fly.io/phoenix-files/star-cross-live-view-processes/

	defmodule MyAppyWeb.TaskTestLive.Index do
	use MyAppWeb, :live_view
	require Logger

	@impl true
	def mount(_params, _session, socket) do
	# Trap exits to catch when a Task is forcibly cancelled.
	Process.flag(:trap_exit, true)

	socket =

brainlid / book.ex

Last active September 7, 2025 16:47

Code snippets for Fly blog posts - https://fly.io/phoenix-files/making-a-checkboxgroup-input/

	defmodule MyApp.Books.Book do
	use Ecto.Schema
	import Ecto.Query, warn: false
	import Ecto.Changeset
	import MyApp.ChangesetHelpers

	schema "books" do
	field :name, :string

	field :genres, {:array, :string}, default: []

brainlid / Repo.ex

Created May 14, 2021 20:26 — forked from dlederle/Repo.ex

	defmodule Acme.Repo do
	use Ecto.Repo,
	otp_app: :acme,
	adapter: Ecto.Adapters.Postgres

	def with_prefix(prefix) do
	module_atom = Module.concat([Acme, Repo, WithPrefix, Macro.camelize(prefix)])

	# We could not find a better way to see if this module already existed
	if !Kernel.function_exported?(module_atom, :prefix, 0) do

brainlid / row_poly.ex

Created February 27, 2020 23:25

Row Polymorphism example in Elixir

	defmodule Point2D do
	defstruct [x: 0, y: 0]
	end

	defmodule Point3D do
	defstruct [x: 0, y: 0, z: 0]
	end

	defmodule RowPolymorphism do
	def get_x_y(%{x: x, y: y} = _data) do

brainlid / Readme.md

Created May 15, 2019 19:27 — forked from philipz/Readme.md

GitLab Runner on a Kubernetes cluster

Create namespace.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: gitlab

kubectl create -f ./namespace.yaml

brainlid / Dockerfile

Created July 3, 2018 18:36

Describe solution for user ownership of files

	FROM elixir:1.6.5-alpine

	ARG DEV_USER=1000

	RUN apk add --no-cache \
	# bash terminal Support
	bash \
	# development - could be separated/virtual for removal, but lets just get the bin going -BJG
	inotify-tools wget curl smem tar gcc g++ libc-dev libffi-dev make \
	# utilities

brainlid / config.ex

Created March 26, 2018 15:37 — forked from bitwalker/config.ex

Useful config wrapper for Elixir

	defmodule Config do
	@moduledoc """
	This module handles fetching values from the config with some additional niceties
	"""

	@doc """
	Fetches a value from the config, or from the environment if {:system, "VAR"}
	is provided.

	An optional default value can be provided if desired.

brainlid / index.html

Created August 4, 2016 13:22 — forked from anonymous/index.html

JS Bin [Queue for rendering 1 at a time] // source http://jsbin.com/basuzi

	<!DOCTYPE html>
	<html>
	<head>
	<meta name="description" content="[Queue for rendering 1 at a time]">
	<script src="https://cdnjs.cloudflare.com/ajax/libs/q.js/1.0.1/q.js"></script>
	<script src="https://npmcdn.com/@reactivex/[email protected]/dist/global/Rx.umd.js"></script>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	<style>

Mark Ericksen brainlid