Programming Elixir 1.3

Transformation: Format the Table

All that’s left from our design is to create the formatted table. The following would be a nice interface:

  def process({user, project, count}) do
    Issues.GithubIssues.fetch(user, project)
    |> decode_response
    |> sort_into_ascending_order
    |> Enum.take(count)
    |> print_table_for_columns(["number", "created_at", "title"])
  end

We pass the formatter the list of columns to include in the table, and it writes the table to standard output.

The formatter doesn’t add any new project- or design-related techniques, so we’ll just list it.

project/4/issues/lib/issues/table_formatter.ex

defmodule Issues.TableFormatter do

  import Enum, only: [ each: 2, map: 2, map_join: 3, max: 1 ...