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Merge pull request #1 from Joe-noh/joe-noh-file-path
use relative path
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Original file line number | Diff line number | Diff line change |
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@@ -1,49 +1,53 @@ | ||
defmodule Countries do | ||
alias Countries.Country, as: Country | ||
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@doc """ | ||
Returns all countries. | ||
""" | ||
def all do | ||
countries | ||
end | ||
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@doc """ | ||
Filters countries by given attribute. | ||
Returns a List of %Country{} | ||
## Examples | ||
iex> Countries.filter_by(:region, "Europe") | ||
[%Countries.Country{address_format: nil, alpha2: 'VA' ... | ||
""" | ||
def filter_by(attribute, value) do | ||
Enum.filter(countries, fn(country) -> | ||
Enum.filter(countries, fn(country) -> | ||
value_as_char_list = to_char_list(value) | ||
country[attribute] == value_as_char_list | ||
end) | ||
end | ||
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defp countries do | ||
defp countries do | ||
# Lets load all country data from our yaml files | ||
codes = List.first(:yamerl.decode_file("lib/data/countries.yaml")) | ||
country_data = | ||
Enum.reduce(codes, [], fn (code, countries) -> | ||
countries ++ :yamerl.decode_file("lib/data/countries/#{code}.yaml") | ||
codes = List.first(:yamerl.decode_file(data_path "countries.yaml")) | ||
country_data = | ||
Enum.reduce(codes, [], fn (code, countries) -> | ||
countries ++ :yamerl.decode_file(data_path "countries/#{code}.yaml") | ||
end) | ||
# :yamerl returns a really terrible data structure | ||
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# :yamerl returns a really terrible data structure | ||
# [[{'name', 'Germany'}, {'code', 'DE'}], [{'nam:e', 'Austria'}, {'code', 'AT'}]] | ||
# We need to transform that to maps: | ||
# [%{name: 'Germany', code: "DE"}, %{name: 'Austria', code: "AT"}] | ||
countries = | ||
countries = | ||
Enum.reduce(country_data, [], fn (country_data, countries) -> | ||
country = | ||
country = | ||
Enum.reduce(country_data, %Country{}, fn({key, value}, country) -> | ||
key_as_atom = String.to_atom(to_string key) | ||
Map.put(country, key_as_atom, value) | ||
end) | ||
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List.insert_at(countries, 0, country) | ||
end) | ||
end | ||
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defp data_path(path) do | ||
Path.join("data", path) |> Path.expand(__DIR__) | ||
end | ||
end |