This project is not maintained anymore

If you like it or continue to use it fork it please.

A rails_admin plugin to add more options to fields.

Features:

• load fields css classes from models

• nested sortable tabs (with drag and drop)

• nested_list: has_many associations alternative views (list and accordion)

• nested_one: has_one associations alternative view

Notes:

• nested_list and nested_one don't support creating new records and deleting existing ones

• Add to the Gemfile:

gem 'rails_admin_extended_fields'

• Edit or create app/assets/javascripts/rails_admin/custom/ui.js and add:

//= require rails_admin_extended_fields

It can be useful to add specific classes to some fields using Single Table Inheritance models:

class Block < ApplicationRecord
  def type_enum
    @type_enum ||= [ 'BlockImage', 'BlockText' ]
  end
end

class BlockImage < Block
  def css_class
    @css_class ||= {
      abstract: 'hide',
      name: 'hide'
    }
  end
end

Class 'hide' is added to abstract and name fields of BlockImage only.

Example: a parent model Page and a nested model Block (page has many blocks)

• Add a position field to your nested model (ex. an integer or float column):

rails generate migration AddPositionToBlocks position:float

• Optionally add a default in the migration (ex. add_column :blocks, :position, :float, null: false, default: 0.0)

• Add a default ordered scope to the nested model:

default_scope { order( :position ) }

• rails_admin config:

  config.model Block do
    nested do
      field :position, :hidden do
        html_attributes 'data-sortable': 'true'
      end
    end
  end

  config.model Page do
    edit do
      field :blocks do
        css_class 'nested-sortable'
      end
    end
  end

• If you edit a Page in rails_admin Blocks should be draggable

• If you want to add a symbol to draggable handlers you can add a CSS rule like: .ui-sortable-handle > a::before { content: '\2194 '; }

• Present an has_many association as a list:

field :page_options, :nested_list

• Present an has_many association as an accordion with drag and drop reordering:

  field :page_options, :nested_list do
    accordion true
    sortable true
  end

• Present an has_one association:

field :page_info, :nested_one

• Mattia Roccoberton - creator, maintainer