Sha256: 20d8b396d3ca1a9c1bdc8abd87c1f2cb63a04f488c3d9c174a4d1c8813fdf4f5
Contents?: true
Size: 1.63 KB
Versions: 7
Compression:
Stored size: 1.63 KB
Contents
module Mobility
module Plugins
=begin
Defines value or proc to fall through to if return value from getter would
otherwise be nil.
@example With default enabled (falls through to default value)
class Post
extend Mobility
translates :title, default: 'foo'
end
Mobility.locale = :en
post = Post.new(title: "English title")
Mobility.locale = :de
post.title
#=> 'foo'
@example Overriding default with reader option
class Post
extend Mobility
translates :title, default: 'foo'
end
Mobility.locale = :en
post = Post.new(title: "English title")
Mobility.locale = :de
post.title
#=> 'foo'
post.title(default: 'bar')
#=> 'bar'
post.title(default: nil)
#=> nil
@example Using Proc as default
class Post
extend Mobility
translates :title, default: lambda { |model:, attribute:| attribute.to_s }
end
post = Post.new(title: nil)
post.title
#=> "title"
post.title(default: lambda { |model:| model.class.name.to_s })
#=> "Post"
=end
class Default < Module
# Applies default plugin to attributes.
# @param [Attributes] attributes
# @param [Object] option
def self.apply(attributes, option)
attributes.backend_class.include(new(option))
end
def initialize(default_option)
define_method :read do |locale, options = {}|
default = options.has_key?(:default) ? options.delete(:default) : default_option
if (value = super(locale, options)).nil?
default.is_a?(Proc) ? default.call(model: model, attribute: attribute) : default
else
value
end
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems