Alert: This gem is used internally at DOBT, and might not be perfect for your implementation. We recommend forking this repository and using it as a starting point.

Formbuilder.rb

Formbuilder.rb is a Rails Engine that's designed as a compliment to Formbuilder.js, a library that lets your users create their own webforms inside of your application.

Since Formbuilder.rb is a fairly non-trial piece of software, it's important to understand its components and how it works:

We add ResponseField, EntryAttachment, and Form models to your application. (Each type of response field (text, checkboxes, dropdown, etc.) uses STI, inheriting from the ResponseField model.)
You include Formbuilder::Entry in an existing model.
We add a few classes to help you render forms and entries.

Note: All Formbuilder models and classes are namespaced within the Formbuilder module.

If you have a few moments, consider reading the source, especially the Rails app in spec/dummy, as it should give you a good idea of how Formbuilder integrates.

Requirements

Postgres is currently required. See Issue #1.

Paperclip for file uploads. Geocoder to geocode address fields.

Installation

1) In your Gemfile

gem 'formbuilder-rb', require: 'formbuilder'

2) Create the migrations for the Formbuilder models

rake formbuilder:install:migrations
rake db:migrate

3) The `Entry` model gets mixed in to an existing model in your application

Note: you will need to have either the responses attribute or the responses_text attribute on your Entry model.

#  responses       :hstore
#  responses_text  :text

class Entry < ActiveRecord::Base
  include Formbuilder::Entry
end

4) Associate a form with an existing model (optional)

class MovieTheater < ActiveRecord::Base
  has_one :form, as: :formable, class_name: 'Formbuilder::Form'
end

Usage

Render a form

<%= Formbuilder::FormRenderer.new(@form, @entry).to_html %>

Save an entry

@entry = Entry.new(form: @form)
@entry.save_responses(params[:response_fields], @form.response_fields) # validates automatically

Validate an entry

@entry.valid?
# => false

@entry.error_for(form.response_fields.first)
# => "can't be blank"

Integrate with the Formbuilder.js frontend

# config/routes.rb
resources :forms, only: [:update]

# app/controllers/forms_controller.rb
class FormsController < ApplicationController
  include Formbuilder::Concerns::FormsController
end

License

MIT

License

jcutrell/formbuilder-rb

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