Queryable

Enhance Ecto with powerful queries.

Installation

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

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

Documentation

Documentation can be found at https://hexdocs.pm/queryable.

Usage

Extend an Ecto Schema by adding criteria:

defmodule Person do
  use Queryable #instead of Ecto.Schema

  schema "persons" do
    field :name, :string
    field :surname, :string
    field :age, :integer
  end

  criteria(under: age, where: el.age < ^age)
  criteria(ordered_by: field, order_by: ^field)
end

Then create an Ecto Query in one of the following modes:

Person.query(name: "John", under: 18)

Person.name("John") |> Person.under(18)

This query can then be passed to methods like Repo.all.