quick_seed.md

I used this to move some data from a ruby project to an eliir project

i used a rails console and a iex -S mix session

in ruby

json = Model.all.map {|p| {f1: p.f1, ...}}.to_json
File.open('user.json', 'wb+') {|f| f.write(json)}

in elixir

json_file = "/path/to/file/user.json"
binary = json_file |> File.read!
data = binary |> Poison.decode!
alias Web.User

  defmodule Bingo do
    def insert_multiple(repo, model, map, [string_key_map | tail]) do
      data = for {key, val} <- string_key_map, into: %{}, do: {String.to_atom(key), val}
      model.changeset(map, data) |> repo.insert
      IO.puts "Inserted #{data}"
      insert_multiple(repo, model, map, tail)
    end
    def insert_multiple(_,_,_, []) do
      IO.puts "This is the end. Thank you"
    end
  end
  Bingo.insert_multiple(Web.Repo, User, %User{}, data)