Elixir Cheatsheets

Phoenix Cheatsheet.md

Preperation

Installation

• Install Elixir: http://elixir-lang.org/install.html
• Install Phoenix http://www.phoenixframework.org/docs/installation

sudo apt-get install inotify-tools #ubuntu
sudo apt-get install postgresql #Ubuntu

mix local.hex #install hex
mix archive.install https://github.com/phoenixframework/archives/raw/master/phoenix_new.ez #phoenix archive

Create Project

mix phoenix.new hello_phoenix
cd  hello_phoenix

Setup Project Databse

#configure your database in config/dev.exs
mix ecto.create

Running

Run Project

mix phoenix.server #Run Application
iex -S mix phoenix.server #Run Interactive Elixir
iex -S mix
mix compile #Compile all

Access Project

http://localhost:4000

Development

Adding Pages http://www.phoenixframework.org/docs/adding-pages

• web/router.ex
  • get "/hello", HelloController, :index
  • resources "/users", UserController
• web/controllers/hello_controller.ex #controller
• web/views/hello_view.ex #view
• web/templates/hello/index.html.eex #template
• web/views/layout_view.ex #layout

Examine Routes #http://www.phoenixframework.org/docs/routing

mix phoenix.routes

Adding Models

• phoenix.gen.json {params} or phoenix.gen.json {params}
• mix ecto.migrate

Testing/Debugging https://medium.com/@diamondgfx/debugging-phoenix-with-iex-pry-5417256e1d11#.rnhlokw5b

mix test

iex -S mix test --trace
#require IEx
#IEx.pry
#IO.puts foo

Mix Tasks

Phoenix

$ mix help | grep -i phoenix
mix phoenix.digest      # Digests and compress static files
mix phoenix.gen.channel # Generates a Phoenix channel
mix phoenix.gen.html    # Generates controller, model and views for an HTML based resource
mix phoenix.gen.json    # Generates a controller and model for a JSON based resource
mix phoenix.gen.model   # Generates an Ecto model
mix phoenix.new         # Create a new Phoenix v1.1.2 application
mix phoenix.routes      # Prints all routes
mix phoenix.server      # Starts applications and their servers

Ecto

$ mix help | grep -i ecto
mix ecto.create          # Create the storage for the repo
mix ecto.drop            # Drop the storage for the repo
mix ecto.gen.migration   # Generate a new migration for the repo
mix ecto.gen.repo        # Generates a new repository
mix ecto.migrate         # Runs migrations up on a repo
mix ecto.rollback        # Reverts migrations down on a repo

Seeding Data http://www.phoenixframework.org/docs/seeding-data

mix run priv/repo/seeds.exs