Kerosene

Pagination for Ecto and Phoenix.

Installation

The package is available in Hex, the package can be installed as:

Add kerosene to your list of dependencies in mix.exs:

def deps do
  [{:kerosene, "~> 0.9.0"}]
end

Add Kerosene to your repo.ex:

defmodule MyApp.Repo do
  use Ecto.Repo, 
    otp_app: :testapp,
    adapter: Ecto.Adapters.Postgres
  use Kerosene, per_page: 2
end

Usage

Start paginating your queries

def index(conn, params) do
  {products, kerosene} = 
  Product
  |> Product.with_lowest_price
  |> Repo.paginate(params)

  render(conn, "index.html", products: products, kerosene: kerosene)
end

Add view helpers to your view

defmodule MyApp.ProductView do
  use MyApp.Web, :view
  import Kerosene.HTML
end

Generate the links using the view helpers

<%= paginate @conn, @kerosene %>

Kerosene provides a list of themes for pagination. By default it uses bootstrap. To use some other, add to config/config.exs:

config :kerosene,
	theme: :foundation

If you need reduced number of links in pagination, you can use simple mode option, to display only Prev/Next links:

config :kerosene,
	mode:  :simple

Building apis or SPA's, no problem Kerosene has support for Json.

defmodule MyApp.ProductView do
  use MyApp.Web, :view
  import Kerosene.JSON

  def render("index.json", %{products: products, kerosene: kerosene, conn: conn}) do
    %{data: render_many(products, MyApp.ProductView, "product.json"),
      pagination: paginate(conn, kerosene)}
  end

  def render("product.json", %{product: product}) do
    %{id: product.id,
      name: product.name,
      description: product.description,
      price: product.price}
  end
end

You can also send in options to paginate helper look at the docs for more details.

Contributing

Please do send pull requests and bug reports, positive feedback is always welcome.

Acknowledgement

I would like to Thank

Matt (@mgwidmann)
Drew Olson (@drewolson)
Akira Matsuda (@amatsuda)

License