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Versions: 20
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Contents
require 'addressable/template'
require 'spyke/rfc_converter'
module Spyke
class InvalidPathError < StandardError; end
class Path
def initialize(pattern, params = {})
@pattern = pattern
@params = params.symbolize_keys
end
def join(other_path)
self.class.new File.join(path, other_path.to_s), @params
end
def to_s
path
end
def variables
@variables ||= uri_template.variables.map(&:to_sym)
end
private
def uri_template
@uri_template ||= Addressable::Template.new(pattern_with_rfc_style_parens)
end
def pattern_with_rfc_style_parens
RfcConverter.new(@pattern).convert
end
def path
validate_required_variables!
uri_template.expand(@params).to_s.chomp('/')
end
def validate_required_variables!
if missing_required_variables.any?
raise Spyke::InvalidPathError, "Missing required variables: #{missing_required_variables.join(', ')} in #{@pattern}. Mark optional variables with parens eg: (:param)"
end
end
def missing_required_variables
required_variables - variables_with_values
end
def variables_with_values
@params.map do |key, value|
key if value.present?
end.compact
end
def required_variables
variables - optional_variables
end
def optional_variables
@pattern.scan(/\(\/?:(\w+)\)/).flatten.map(&:to_sym)
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems