Vexile
Simple dsl for multilevel hash validations
Tested on:
- 2.0.0
- 1.9.3
- 1.9.2
- 1.8.7
- ree
- jruby-head
- jruby-18mode
- jruby-19mode
- rbx-18mode
- rbx-19mode
Installation
Add this line to your application's Gemfile:
gem 'vexile'
And then execute:
$ bundle
Or install it yourself as:
$ gem install vexile
Usage
Just declare some classes using such DSL:
class A
include Vexile::DSL
end
class B
include Vexile::DSL
end
class C
include Vexile::DSL
end
and then, if you have deep level hashes something like {"a": {"b":{"param1":"value1"}, "cs": [{"param2":2}, {"param2": 3}]}}} and if you know it's structure, you can modify classes somehow like that:
class A
include Vexile::DSL
has_one :b
has_many :cs
end
class B
include Vexile::DSL
attr_accessor :param1
end
class C
include Vexile::DSL
attr_accessor :param2
end
then create instance of top level class and load hash to it:
a = A.new
a.load_params({"b"=>{"param1"=>"value1"}, "cs"=> [{"param2"=>"atata"}, {"param2"=> 3}]})
Now you have an instances tree initialized:
a.b # => <B ... @param1="value1" ... >
a.cs # => [#<C ... @param2=2 ...>, #<C ... @param2=3 ...>]
So you can also add activemodel validations:
class A
include Vexile::DSL
has_one :b
has_many :cs
validates :cs, :recursive => true # validator that checks any loaded C instance
end
class B
include Vexile::DSL
attr_accessor :param1
validates :param1, :numericality => true
end
class C
include Vexile::DSL
attr_accessor :param2
validates :param2, :numericality => true
end
So
a.valid? # => false #
because of NumericalityValidator added
a.errors # => ... @messages={:cs=>["is invalid in #<C:0x007f94729ade28> : {:param2=>[\"is not a number\"]}"...
Contributing
- Fork it
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Added some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request