Module: ISO3166::CountryFinderMethods

Included in:
Country
Defined in:
lib/countries/country/finder_methods.rb

Constant Summary collapse

FIND_BY_REGEX = 
/^find_(all_)?(country_|countries_)?by_(.+)/
SEARCH_TERM_FILTER_REGEX = 
/\(|\)|\[\]|,/

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *arguments) ⇒ Object 



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# File 'lib/countries/country/finder_methods.rb', line 30

def method_missing(method_name, *arguments)
  matches = method_name.to_s.match(FIND_BY_REGEX)
  super unless matches
  return_all = matches[1]

  countries = find_by(matches[3], arguments[0], matches[2])
  return_all ? countries : countries.last
end

Instance Method Details

#[](query) ⇒ Object 



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# File 'lib/countries/country/finder_methods.rb', line 13

def [](query)
  search(query)
end

#find_all_by(attribute, val) ⇒ Object 



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# File 'lib/countries/country/finder_methods.rb', line 17

def find_all_by(attribute, val)
  attributes, lookup_value = parse_attributes(attribute, val)

  ISO3166::Data.cache.select do |_, v|
    country = Country.new(v)
    attributes.any? do |attr|
      Array(country.send(attr)).any? do |n|
        lookup_value === cached(n) { parse_value(n) }
      end
    end
  end
end

#respond_to_missing?(method_name, include_private = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/countries/country/finder_methods.rb', line 39

def respond_to_missing?(method_name, include_private = false)
  matches = method_name.to_s.match(FIND_BY_REGEX)
  if matches && matches[3]
    instance_methods.include?(matches[3].to_sym)
  else
    super
  end
end

#search(query) ⇒ Object 



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# File 'lib/countries/country/finder_methods.rb', line 8

def search(query)
  country = new(query.to_s.upcase)
  country&.valid? ? country : nil
end