Turn Parametric schemas into ActiveModel-compliant form objects, including validations.
Define your forms.
require 'parametric/active_model'
class User < Parametric::ActiveModel
schema do
field(:name).type(:string).present
field(:friends).type(:array).schema do
field(:name).type(:string).present
field(:age).type(:integer)
end
end
def save!
# do something here
end
end
Now use it in Rails controllers:
def new
@user = User.new
end
def create
@user = User.new(params[:user])
@user.save!
end
Views work normally:
<%= form_for @user do |f| %>
<%= f.text_field :name %>
<!-- nested objects -->
<%= f.fields_for :friends do |friend| %>
<%= friend.text_field :name %>
<%= friend.text_field :age %>
<% end %>
<% end %>
You can also use nested form objects:
class Friend < Parametric::ActiveModel
schema do
field(:name).type(:string).present
field(:age).type(:integer)
end
end
# now embed it in the parent form
class User < Parametric::ActiveModel
schema do
field(:name).type(:string).present
field(:friends).type(:array).schema Friend # <== here!
end
# etc..
end
Add this line to your application's Gemfile:
gem 'parametric-active_model'
And then execute:
$ bundle
Or install it yourself as:
$ gem install parametric-active_model
TODO: Write usage instructions here
After checking out the repo, run bin/setup
to install dependencies. Then, run rake spec
to run the tests. You can also run bin/console
for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install
. To release a new version, update the version number in version.rb
, and then run bundle exec rake release
, which will create a git tag for the version, push git commits and tags, and push the .gem
file to rubygems.org.
Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/parametric-active_model.
The gem is available as open source under the terms of the MIT License.