Ecto.Paging

This module provides a easy way to apply cursor-based pagination to your Ecto Queries.

Usage:

1. Add macro to your repo

```elixir
defmodule MyRepo do
  use Ecto.Repo, otp_app: :my_app
  use Ecto.Paging.Repo # This string adds `paginate/2` and `page/3` methods.
end
```

1. Paginate!

```elixir
query = from p in Ecto.Paging.Schema

{res, next_paging} = query
|> Ecto.Paging.TestRepo.page(%Ecto.Paging{limit: 150})
```

Limitations:

• Right now it works only with schemas that have :inserted_at field with auto-generated value.
• You need to be careful with order-by's in your queries, since this feature is not tested yet.
• It doesn't construct has_more and size counts in paginate struct (TODO: add this helpers).
• When both starting_after and ending_before is set, only starting_after is used.

Installation

1. Add ecto_paging to your list of dependencies in mix.exs:

```elixir
def deps do
  [{:ecto_paging, "~> 0.7.0"}]
end
```

1. Ensure ecto_paging is started before your application:

```elixir
def application do
  [applications: [:ecto_paging]]
end
```