BuilderSupport

Provide a very simple way to transform ActiveRecord data into JSON output based on JBuilder.

Installation

Add this line to your application's Gemfile:

gem 'builder_support'

And then execute:

$ bundle

Or install it yourself as:

$ gem install builder_support

Usage

Suppose the table users:

t.string :name,            null: false
t.string :password_digest, null: false
t.string :email

Model:

class User
  include BuilderSupport
  # YES, all you have to do is write this line
  builder_support rmv: %i[ password_digest ]
end

Console:

  $ User.all.to_builder # on records (active relation)
 => [
        { "id" => 1, "name" => "zhandao", "email" => "xxxx" },
        { "id" => 2, "name" => "ikkiuchi", "email" => "xxxx" }
    ]
  $ User.last.to_builder # on a record
 => { "id" => 2, "name" => "ikkiuchi", "email" => "xxxx" }

Explain:

Basic principle: the supporter know all the fields name through column_names (a db mapping func), so you just have to declare which fields do not need to output by passing 'rvm' param.
You can also add something to the output JSON, but make sure that the field name you add needs to correspond to the model instance methods.
The following example will generate { ..., "addtion_field" => "value' }
```
class User
  builder_support add: :addition_field

  def addition_field
    'value'
  end
end
```

Advanced Usage

TODO

builder_add :sub_categories_info, when: :get_nested_list
builder_add :base_category_info, name: :base_category, when: -> { base_category.present? }
builder_map a: :b

Development

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.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/builder_support. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the BuilderSupport project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.