airs / dynamic_simple_form

Installation

Add it to your Gemfile:

gem 'dynamic_simple_form'

Run the following command to install it:

bundle install

Run the simple_form generator:

rails generate simple_form:install

Usage

Add {model}_type_id to your model OR create new your model with {model}_type_id.

rails generate migration AddProductTypeIdToProducts product_type_id:references

OR

rails generate migration CreateProduct product_type_id:references [and your columns...]

Declare dynamic_simple_form in your model.

class Product < ActiveRecord::Base
  # dynamic_simple_form create association automatically.
  # CustomType has many CustomFields
  # Product belongs to CustomType
  # Product has many FieldValues as values
  dynamic_simple_form type_class: CustomType,   # default => ProductType
                      field_class: CustomField  # default => ProductField
                      value_class: FieldValue   # default => ProductFieldValue
                      type_dependent: :nullify   # default => :destroy

  # Model has also static fields
  validates :name, presence: true
  validates :price, numericality: { only_integer: true }
end

Run the dynamic_simple_form generator

rails generate dynamic_simple_form product description:text sale:boolean

Mount Engine

mount DynamicSimpleForm::Engine => '/dynamic_simple_form'

Requirements

• Ruby >= 1.9
• Rails >= 3

Dependencies

• SimpleForm >= 3.0.0.beta1

Todo

1. create engine
2. write lib/generators/USAGE
3. support check_boxes