Form builder for apps which uses mongoid
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MongoidForm Gem Version

It makes your life easy when you develop forms and your app uses mongoid.

Cool features

Works with localized fields!

  # app/models/category.rb
  field :name, localize: true
  field :content, localize: true

  # views/category/_form.rb
  = form_for @category, wrapper: :default, html: { class: 'form-horizontal' } do |f|
    # text_field type by default
    # generates input fields for each locales in your config.i18n.available_locales
    = f.localized :name
    # pass text_area type and some class for example
    # generates text_area fields for each locales in your config.i18n.available_locales
    = f.localized :content, :text_area, class: "tinymce"

Can show flag block with each localized fields


  # this option add after label text "<div class=\"flag flags-en\" />" to each locale fo localized fields 
  # you should styling .flag and .flags-en (.flags-ru etc.) in your css.
  flag_for_localized  true

Shows asterisk for required fields!


  # this option add before label text "<abbr title=\"required field\">*</abbr>" to required fields 
  add_if_required :abbr, '*', title: I18n::t('required')


Add this line to your application's Gemfile:

gem 'mongoid_form'

And then execute:

$ bundle

Run installer for generate sample config:

$ rails generate mongoid_form:install


  = form_for @category, wrapper: :default, html: { class: 'form-horizontal' } do |f|
    = f.error_notification
    = f.localized :name
    = f.input :alias                 # text_field by default
    = f.input :visible, :check_box   # passed type of field

    = f.association :location do |lf|
      = f.input :country  # -> category[location_attributes][country]
      = f.input :city     # -> category[location_attributes][city]

    = f.radios_from_collection :gender, collection: { 1 => t('genders.male'), 2 => t('genders.female') }

Types of fields supported:

  • :text
  • :password
  • :select
  • :number
  • :text_area
  • :check_box
  • :hidden
  • :file

If type is :hidden it will not be wrapped!


All options for this time:

MongoidForm.setup do |config|
  config.wrapper :default do
    alert_error_wrapper :div, class: 'alert alert-error'       # wrapper for form main error
    main_error_i18n_key 'errors.form.error_notification'       # i18n key for form main error 
    group_wrapper       :div, class: 'control-group'           # it wrap group of label + input
    group_error_class   'error'                                # that class will added to group wrapper if errors for field
    label_options       class: 'control-label'                 # options for label field
    add_if_required     :abbr, '*', title: I18n::t('required') # appears before label text if field is required
    error_block         :span, class: 'help-inline'            # element containing error message, appears after input
    input_wrapper       :div, class: 'controls'                # wrapper element for each input
    flag_for_localized  true                                   # show block with class "flag flags-#{locale}" after label text 
                                                               # of localized fields
    radios_wrapper      :div, class: 'radios'                  # wrapper for radios group



  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request