122 lines
2.3 KiB
Markdown
122 lines
2.3 KiB
Markdown
---
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title: Phoenix
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category: Elixir
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layout: 2017/sheet
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weight: -1
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updated: 2017-09-04
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---
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### Directory structure
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```
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./
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├── _build
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├── assets/
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│ ├── css/
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│ ├── js/
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│ ├── static/
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│ └── node_modules/
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├── config/
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├── deps/
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├── lib/
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│ ├── hello/
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│ └── hello_web/
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│ ├── channels/
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│ ├── controllers/
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│ ├── templates/
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│ ├── views/
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│ ├── router.ex
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│ └── gettext.ex
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├── hello.ex
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├── hello_web.ex
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├── priv/
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└── test/
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```
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{: .-box-chars}
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See: [Adding pages](https://hexdocs.pm/phoenix/adding_pages.html) _(hexdocs.pm)_
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### Migrations
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See [Ecto migrations cheatsheet](./phoenix-migrations).
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{: .-setup}
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```bash
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$ mix ecto.gen.migration update_posts_table
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creating priv/repo/migrations/20160602085927_update_posts_table.exs
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...
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```
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```elixir
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create table(:documents) do
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add :title, :string
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add :title, :string, default: "Hello"
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add :body, :text
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add :age, :integer
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add :price, :float, precision: 10, scale: 2
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timestamps
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end
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```
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### Routing
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See [Phoenix routing cheatsheet](./phoenix-routing).
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{: .-setup}
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```elixir
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get "/", PageController, :index
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resources "/users", UserController do
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resources "/posts", PostController
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end
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```
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```elixir
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user_post_path(:index, 17) #=> /users/17/posts
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user_post_path(:show, 17, 12) #=> /users/17/posts/12
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```
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### Conn
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See [Phoenix conn cheatsheet](./phoenix-conn).
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{: .-setup}
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```elixir
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conn.host #=> "example.com"
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conn.method #=> "GET"
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conn.path_info #=> ["posts", "1"]
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conn.request_path #=> "/posts/1"
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```
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```elixir
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conn
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|> put_status(202)
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|> html("<html><head>...")
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|> json(%{ message: "Hello" })
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|> text("Hello")
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|> redirect(to: "/foo")
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|> render("index.html")
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|> render("index.html", hello: "world")
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|> render(MyApp.ErrorView, "404.html")
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```
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### Ecto
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See [Ecto cheatsheet](./phoenix-ecto).
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{: .-setup}
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```bash
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$ mix phx.gen.html \
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Accounts \ # domain
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Profile \ # schema
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profiles \ # table name
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email:string \
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age:integer
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```
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### Also see
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- [Phoenix framework site](http://phoenixframework.org/) _(phoenixframework.org)_
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- [Phoenix: getting started](https://hexdocs.pm/phoenix/overview.html) _(hexdocs.pm)_
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