Custom field

Create a reusable field FieldName

rails plugin new rails_admin_<field_name> -m https://raw.github.com/gist/1626605/ --skip-gemfile --skip-bundle -T -O -S -J --full

Add it to your project

# Gemfile

# if uploaded to github with a valid .gemspec (remove TODOS and change owner credentials)
gem 'rails_admin_<field_name>', :git => 'git://github.com/<username>/rails_admin_<field_name>.git'
# or in development mode
gem 'rails_admin_<field_name>', :path => '../rails_admin_<field_name>'

Development documentation

See the Base class your FieldName will inherit from:

https://github.com/sferik/rails_admin/blob/master/lib/rails_admin/config/fields/base.rb