Module: HalApi::Representer::UriMethods

Extended by:
ActiveSupport::Concern
Included in:
HalApi::Representer
Defined in:
lib/hal_api/representer/uri_methods.rb

Overview

expects underlying model to have filename, class, and id attributes

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args, &block) ⇒ Object 



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# File 'lib/hal_api/representer/uri_methods.rb', line 95

def method_missing(method_name, *args, &block)
  if method_name.to_s.ends_with?('_path_template')
    original_method_name = method_name[0..-10]
    template_named_path(original_method_name, *args)
  else
    super(method_name, *args, &block)
  end
end

Instance Method Details

#alternate_url(*path) ⇒ Object 



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# File 'lib/hal_api/representer/uri_methods.rb', line 55

def alternate_url(*path)
  "https://#{self.class.alternate_host}/#{path.map(&:to_s).join('/')}"
end

#becomes_represented_class(rep) ⇒ Object 



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# File 'lib/hal_api/representer/uri_methods.rb', line 49

def becomes_represented_class(rep)
  return rep unless rep.respond_to?(:becomes)
  klass = rep.try(:item_class) || rep.class.try(:base_class)
  (klass && (klass != rep.class)) ? rep.becomes(klass) : rep
end

#find_model_name(klass) ⇒ Object 



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# File 'lib/hal_api/representer/uri_methods.rb', line 76

def find_model_name(klass)
  klass.try(:name) || klass.ancestors.detect{|c| c.try(:name) }.name
end

#joined_names(args) ⇒ Object 



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# File 'lib/hal_api/representer/uri_methods.rb', line 65

def joined_names(args)
  (Array(args.map { |arg| model_uri_part_to_string(arg) }) +
    model_uri_suffix(args)).flatten.compact.join('/')
end

#model_path(represented) ⇒ Object 



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# File 'lib/hal_api/representer/uri_methods.rb', line 38

def model_path(represented)
  rep = becomes_represented_class(represented)
  class_path = rep.class.name.underscore.pluralize
  "#{class_path}/#{represented.id}"
end

#model_uri(*args) ⇒ Object Also known as: profile_url 



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# File 'lib/hal_api/representer/uri_methods.rb', line 59

def model_uri(*args)
  "http://#{self.class.profile_host}/model/#{joined_names(args)}"
end

#model_uri_part_to_string(part) ⇒ Object 



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# File 'lib/hal_api/representer/uri_methods.rb', line 80

def model_uri_part_to_string(part)
  if part.is_a?(String) || part.is_a?(Symbol)
    part.to_s.dasherize
  else
    klass = part.is_a?(Class) ? part : (part.try(:item_class) || part.class)
    if klass.respond_to?(:base_class) && !klass.superclass.name.demodulize.starts_with?('Base')
      parent = klass.superclass.name.underscore.dasherize
      child = klass.name.underscore.gsub(/_#{parent}$/, "").dasherize
      [parent, child]
    else
      klass.name.underscore.dasherize
    end
  end
end

#model_uri_suffix(args) ⇒ Object 



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# File 'lib/hal_api/representer/uri_methods.rb', line 70

def model_uri_suffix(args)
  represented = args.last
  klass = represented.try(:item_decorator) || self.class
  find_model_name(klass).deconstantize.underscore.dasherize.split('/')[1..-1] || []
end

#self_url(represented) ⇒ Object 



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# File 'lib/hal_api/representer/uri_methods.rb', line 44

def self_url(represented)
  rep = becomes_represented_class(represented)
  polymorphic_path([:api, rep])
end

#template_named_path(named_path, options) ⇒ Object 



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# File 'lib/hal_api/representer/uri_methods.rb', line 104

def template_named_path(named_path, options)
  replace_options = options.keys.inject({}) do |s, k|
    s[k] = "_#{k.upcase}_REPLACE_"
    s
  end
  path = send(named_path, replace_options)
  replace_options.keys.each do |k|
    path.gsub!(replace_options[k], (options[k] || ''))
  end
  path
end