class ActiveMappers::KeyTransformer

Public Class Methods

apply_on(name) click to toggle source
# File lib/active_mappers/key_transformer.rb, line 5
def self.apply_on(name)
  new(name)
    .remove_ignored_namespace
    .apply_root_key_transform
end
base_namespace(class_from) click to toggle source
# File lib/active_mappers/key_transformer.rb, line 53
def self.base_namespace(class_from)
  base_namespace = class_from.name.split('::')[0] rescue ""
  base_namespace = '' unless Setup.ignored_namespaces.include?(base_namespace.downcase.to_sym)

  base_namespace
end
format_keys(hash) click to toggle source
# File lib/active_mappers/key_transformer.rb, line 11
def self.format_keys(hash)
  Setup.camelcase_keys ? hash.to_lower_camel_case : hash
end
new(name) click to toggle source
# File lib/active_mappers/key_transformer.rb, line 27
def initialize(name)
  @name = name.dup
end
resource_class_to_mapper(resource_class_name, class_from) click to toggle source
# File lib/active_mappers/key_transformer.rb, line 19
def self.resource_class_to_mapper(resource_class_name, class_from)
  resource_class_name[0..1] = '' if resource_class_name.start_with?('::')

  "#{base_namespace(class_from)}::#{resource_class_name}Mapper".constantize
rescue NameError
  raise "undefined mapper: '#{base_namespace(class_from)}::#{resource_class_name}Mapper'"
end
resource_to_mapper(resource, class_from) click to toggle source
# File lib/active_mappers/key_transformer.rb, line 15
def self.resource_to_mapper(resource, class_from)
  "#{base_namespace(class_from)}::#{resource.class.name}Mapper".constantize
end

Public Instance Methods

apply_root_key_transform() click to toggle source
# File lib/active_mappers/key_transformer.rb, line 39
def apply_root_key_transform
  camel_transformer = proc do |key|
    key.gsub('Mapper', '').tableize.camelize(:lower).gsub('::', '/')
  end

  snake_transformer = proc do |key|
    key.gsub('Mapper', '').tableize
  end

  transformer = Setup.camelcase_keys ? camel_transformer : snake_transformer

  (Setup.root_keys_transformer || transformer).call(@name)
end
remove_ignored_namespace() click to toggle source
# File lib/active_mappers/key_transformer.rb, line 31
def remove_ignored_namespace
  Setup.ignored_namespaces.each do |namespace|
    @name.gsub!("#{namespace.to_s.capitalize}::", '')
  end
  @name = @name.split('MapperScope')[0]
  self
end