Ecto.Preloader

Preload your associations efficiently with joins.

You can do this with Ecto alone, it just requires more code. This package makes it a one liner.

Full documentation: https://hexdocs.pm/ecto_preloader.

Example usage:

import Ecto.Preloader

Invoice
|> preload_join(:customer)
|> preload_join(:lines)
|> Repo.all()

Example using Ecto directly:

Without Ecto.Preloader it gets a bit repetitive:

Invoice
|> join(:left, [i], assoc(i, :customer), as: :customer)
|> join(:left, [i], assoc(i, :lines), as: :lines)
|> preload([lines: l, customers: c], lines: l, customer: c)
|> Repo.all()

Installation

The package can be installed by adding ecto_preloader to your list of dependencies in mix.exs:

def deps do
  [
    {:ecto_preloader, "~> 0.1.0"}
  ]
end

License

WTFPL