RandomAttributes
Sometimes people give you rubbish data, when they do rather than wiring everything up with hundreds of methods you could use RandomAttributes.
If mangling crappy data is not your issue you are probably better served by something like virtus.
Installation
Add this line to your application's Gemfile:
gem 'random_attributes'
And then execute:
$ bundle
Or install it yourself as:
$ gem install random_attributes
Usage
Vanilla:
class Foo
include RandomAttributes
attribute "fooBar"
end
foo = Foo.parse { "fooBar" => "hello" }
foo.foo_bar #=> "hello"Alias:
class Foo
include RandomAttributes
attribute "fooBar", alias: :moo_bar
end
foo = Foo.parse { "fooBar" => "hello" }
foo.moo_bar #=> "hello"Type casting:
class Foo
include RandomAttributes
attribute "fooBar", type: String
end
foo = Foo.parse { "fooBar" => 34 }
foo.foo_bar #=> "34"Many possible values:
class Foo
include RandomAttributes
attribute ["fooBar", "mooBar"], alias: :foo_bar
end
foo = Foo.parse { "fooBar" => "hello" }
foo.foo_bar #=> "hello"
foo = Foo.parse { "mooBar" => "hello" }
foo.foo_bar #=> "hello"Trying another node:
class Foo
include RandomAttributes
attribute "parentNode"
attribute "fooBar", try: :parent_node
end
foo = Foo.parse { "fooBar" => "hello" }
foo.foo_bar #=> "hello"
foo = Foo.parse { "parentNode" => { "fooBar" => "hello" } }
foo.foo_bar #=> "hello"Nested within a node:
class Foo
include RandomAttributes
attribute "parentNode"
attribute "fooBar", within: :parent_node
end
foo = Foo.parse { "parentNode" => { "fooBar" => "hello" } }
foo.foo_bar #=> "hello"Models:
class Bar
attr_reader :message
def initialize message
@message = message
end
end
class Foo
include RandomAttributes
attribute "fooBar", model: Bar
end
foo = Foo.parse { "fooBar" => "hello" }
foo.foo_bar.message #=> "hello"Collections:
class Bar
attr_reader :message
def initialize message
@message = message
end
end
class Foo
include RandomAttributes
attribute "fooBar", collection: Bar
end
foo = Foo.parse { "fooBar" => ["hello", "goodbye"] }
foo.foo_bar.first.message #=> "hello"
foo.foo_bar.last.message #=> "goodbye"Parse data with proc:
class Foo
include RandomAttributes
attribute "fooBar", parse: ->(value) { "#{value} from a proc!" }
end
foo = Foo.parse { "fooBar" => "hello" }
foo.foo_bar #=> "hello from a proc!"Callbacks:
class Foo
include RandomAttributes
attribute "fooBar"
attribute "multipleFooBar"
after_parse :multiply_foo_bar
def multiply_foo_bar
set_attribute :multiple_foo_bar, foo_bar * 2
end
end
foo = Foo.parse { "fooBar" => 2 }
foo.multiple_foo_bar #=> 4Contributing
- Fork it
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request