Pedro Luz Narven

The Complete Guide to Nested Forms in Phoenix

I recently spent some time dealing with nested forms in Phoenix. Nested forms are great when you want to create multiple database records in a single transaction and associate them with each other. I am new to Phoenix and really struggled to find any resources that helped me with my specific problem. I decided to document what I learned in the process in hopes of helping others that are new to Elixir and Phoenix.

Here is my attempt at a one stop shop to learn everything you will need to know about nested forms. If you would like to view the GitHub repo you can check it out here.

Thanks to Heartbeat and Jose for excellent blog posts on nested forms. Also shoutout to Josh for showing me some examples at Ruby

Thanks to the original blog post: https://equimper.com/blog/how-to-setup-tailwindcss-in-phoenix-1.4

1. Install `tailwindcss` and `postcss-loader` from npm:

cd assets
npm i --save-dev tailwindcss postcss-loader postcss-import

2. Initialize `tailwind` (still in assets directory)

FWIW: I'm not the author of the content presented here (which is an outline from Edmond Lau's book). I've just copy-pasted it from somewhere over the Internet, but I cannot remember what exactly the original source is. I was also not able to find the author's name, so I cannot give him/her the proper credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

	How to convert existing phoenix app to an umbrella app.
	https://elixir-lang.slack.com/archives/phoenix/p1472921051000134


	chrismccord [10:14 PM]
	@alanpeabody yes, it's straightforward

	[10:14]
	1) mix new my_umbrella --umbrella

	"explorer.experimental.fileNesting.enabled": true,
	"explorer.experimental.fileNesting.expand": false,
	"explorer.experimental.fileNesting.patterns": {
	"pubspec.yaml": ".flutter-plugins, .packages, .dart_tool, .flutter-plugins-dependencies, .metadata, .packages, pubspec.lock, build.yaml, analysis_options.yaml, all_lint_rules.yaml",
	".gitignore": ".gitattributes, .gitmodules, .gitmessage, .mailmap, .git-blame*",
	"readme.": "authors, backers.md, changelog, citation, code_of_conduct.md, codeowners, contributing.md, contributors, copying, credits, governance.md, history.md, license, maintainers, readme*, security.md, sponsors.md",
	"*.dart": "$(capture).g.dart, $(capture).freezed.dart",
	},

	<!DOCTYPE html>
	<html>
	<head>
	<title>Box Shadow</title>

	<style>
	.box {
	height: 150px;
	width: 300px;
	margin: 20px;

	DROP TABLE currency;

	-- Create table variable
	CREATE TABLE currency (
	name VARCHAR(20),
	code VARCHAR(3),
	symbol VARCHAR(5)
	);

	ALTER TABLE currency CONVERT TO CHARACTER SET utf8;

	package main

	import (
	"log"
	"os"
	"time"

	"github.com/fsnotify/fsnotify"
	)

	defmodule MyBlog.Repo.Migrations.CreatePost do
	use Ecto.Migration

	def change do
	create table(:posts, primary_key: false) do
	add :id, :uuid, primary_key: true
	add :body, :string
	add :word_count, :integer

	timestamps

	/*
	requires libgit2
	*/


	package main

	import (
	"github.com/libgit2/git2go"
	"fmt"

Pedro Luz Narven

The Complete Guide to Nested Forms in Phoenix

1. Install tailwindcss and postcss-loader from npm:

2. Initialize tailwind (still in assets directory)

Effective Engineer - Notes

What's an Effective Engineer?

1. Install `tailwindcss` and `postcss-loader` from npm:

2. Initialize `tailwind` (still in assets directory)