From 1cb66eb86bc44dfeabe6c7afe955dc59c9773592 Mon Sep 17 00:00:00 2001
From: m5o <m5o@gmx.com>
Date: Wed, 11 Apr 2018 14:47:16 +0200
Subject: [PATCH] update bootstrap v4.1 generator template (#1569)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

simple form now 💜 bootstrap 4.1

The bootstrap generator is extracted from:
https://github.com/rafaelfranca/simple_form-bootstrap/pull/56

* supported form wrapper all covered by *tests*
  * vertical form
  * horizontal form
  * inline form
  * custom fields form
  * input groups form
  * floating labels form

:link: https://github.com/rafaelfranca/simple_form-bootstrap/pull/56
:link: https://github.com/plataformatec/simple_form/issues/1561

Resolves #1337
---
 CHANGELOG.md                                  |   3 +-
 lib/generators/simple_form/templates/README   |   6 +-
 .../initializers/simple_form_bootstrap.rb     | 455 ++++++++++++++----
 3 files changed, 369 insertions(+), 95 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f978288c..61c69e53 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 ## Unreleased
 
+* Add bootstrap v4.1 generator template. [@m5o](https://github.com/m5o)
 * Add Rails 5.2 support. [@gobijan](https://github.com/gobijan)
 * Add API to register custom components.[@feliperenan](https://github.com/feliperenan)
 * Allow custom errors classes to inputs.[@feliperenan](https://github.com/feliperenan)
@@ -23,7 +24,7 @@
 * Add frozen_string_literal magic comment to several files. [@oniofchaos](https://github.com/oniofchaos)
 * Try convert @object to model in case we got decorated object [@timurvafin](https://github.com/timurvafin)
 - From now, if you are using some object that inherits from `SimpleDelegator`, you must implement
-  `def to_model; self; end`. Otherwise, *Simple Form* will convert the decorated object to the model 
+  `def to_model; self; end`. Otherwise, *Simple Form* will convert the decorated object to the model
   since `SimpleDelegator` will delegate it to the model.
 * Code cleanup [@Fornacula](https://github.com/Fornacula)
 
diff --git a/lib/generators/simple_form/templates/README b/lib/generators/simple_form/templates/README
index fba4fc6d..1713a991 100644
--- a/lib/generators/simple_form/templates/README
+++ b/lib/generators/simple_form/templates/README
@@ -3,9 +3,9 @@
   Be sure to have a copy of the Bootstrap stylesheet available on your
   application, you can get it on http://getbootstrap.com/.
 
-  Inside your views, use the 'simple_form_for' with one of the Bootstrap form
-  classes, '.form-horizontal' or '.form-inline', as the following:
+  Inside your views, use the 'simple_form_for' with the Bootstrap form
+  class, '.form-inline', as the following:
 
-    = simple_form_for(@user, html: { class: 'form-horizontal' }) do |form|
+    = simple_form_for(@user, html: { class: 'form-inline' }) do |form|
 
 ===============================================================================
diff --git a/lib/generators/simple_form/templates/config/initializers/simple_form_bootstrap.rb b/lib/generators/simple_form/templates/config/initializers/simple_form_bootstrap.rb
index 28329323..0178fd53 100644
--- a/lib/generators/simple_form/templates/config/initializers/simple_form_bootstrap.rb
+++ b/lib/generators/simple_form/templates/config/initializers/simple_form_bootstrap.rb
@@ -1,18 +1,55 @@
 # frozen_string_literal: true
-#
+
+# Please do not make direct changes to this file!
+# This generator is maintained by the community around simple_form-bootstrap:
+# https://github.com/rafaelfranca/simple_form-bootstrap
+# All future development, tests, and organization should happen there.
+# Background history: https://github.com/plataformatec/simple_form/issues/1561
+
 # Uncomment this and change the path if necessary to include your own
 # components.
-# See https://github.com/plataformatec/simple_form#custom-components to know
-# more about custom components.
+# See https://github.com/plataformatec/simple_form#custom-components
+# to know more about custom components.
 # Dir[Rails.root.join('lib/components/**/*.rb')].each { |f| require f }
-#
+
 # Use this setup block to configure all options available in SimpleForm.
 SimpleForm.setup do |config|
+  # Default class for buttons
+  config.button_class = 'btn'
+
+  # Define the default class of the input wrapper of the boolean input.
+  config.boolean_label_class = 'form-check-label'
+
+  # How the label text should be generated altogether with the required text.
+  config.label_text = lambda { |label, required, explicit_label| "#{label} #{required}" }
+
+  # Define the way to render check boxes / radio buttons with labels.
+  config.boolean_style = :inline
+
+  # You can wrap each item in a collection of radio/check boxes with a tag
+  config.item_wrapper_tag = :div
+
+  # Defines if the default input wrapper class should be included in radio
+  # collection wrappers.
+  config.include_default_input_wrapper_class = false
+
+  # CSS class to add for error notification helper.
   config.error_notification_class = 'alert alert-danger'
-  config.button_class = 'btn btn-default'
-  config.boolean_label_class = nil
 
-  config.wrappers :vertical_form, tag: 'div', class: 'form-group', error_class: 'has-error', valid_class: 'has-success' do |b|
+  # Method used to tidy up errors. Specify any Rails Array method.
+  # :first lists the first message for each field.
+  # :to_sentence to list all errors for each field.
+  config.error_method = :to_sentence
+
+  # add validation classes to `input_field`
+  config.input_field_error_class = 'is-invalid'
+  config.input_field_valid_class = 'is-valid'
+
+
+  # vertical forms
+  #
+  # vertical default_wrapper
+  config.wrappers :vertical_form, tag: 'div', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
     b.use :html5
     b.use :placeholder
     b.optional :maxlength
@@ -20,48 +57,90 @@ SimpleForm.setup do |config|
     b.optional :pattern
     b.optional :min_max
     b.optional :readonly
-    b.use :label, class: 'control-label'
-
-    b.use :input, class: 'form-control'
-    b.use :error, wrap_with: { tag: 'span', class: 'help-block' }
-    b.use :hint,  wrap_with: { tag: 'p', class: 'help-block' }
+    b.use :label, class: 'form-control-label'
+    b.use :input, class: 'form-control', error_class: 'is-invalid', valid_class: 'is-valid'
+    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback' }
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
   end
 
-  config.wrappers :vertical_file_input, tag: 'div', class: 'form-group', error_class: 'has-error', valid_class: 'has-success' do |b|
+  # vertical input for boolean
+  config.wrappers :vertical_boolean, tag: 'fieldset', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.optional :readonly
+    b.wrapper :form_check_wrapper, tag: 'div', class: 'form-check' do |bb|
+      bb.use :input, class: 'form-check-input', error_class: 'is-invalid', valid_class: 'is-valid'
+      bb.use :label, class: 'form-check-label'
+      bb.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback' }
+      bb.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+    end
+  end
+
+  # vertical input for radio buttons and check boxes
+  config.wrappers :vertical_collection, item_wrapper_class: 'form-check', tag: 'fieldset', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.optional :readonly
+    b.wrapper :legend_tag, tag: 'legend', class: 'col-form-label pt-0' do |ba|
+      ba.use :label_text
+    end
+    b.use :input, class: 'form-check-input', error_class: 'is-invalid', valid_class: 'is-valid'
+    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+  end
+
+  # vertical input for inline radio buttons and check boxes
+  config.wrappers :vertical_collection_inline, item_wrapper_class: 'form-check form-check-inline', tag: 'fieldset', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.optional :readonly
+    b.wrapper :legend_tag, tag: 'legend', class: 'col-form-label pt-0' do |ba|
+      ba.use :label_text
+    end
+    b.use :input, class: 'form-check-input', error_class: 'is-invalid', valid_class: 'is-valid'
+    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+  end
+
+  # vertical file input
+  config.wrappers :vertical_file, tag: 'div', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
     b.use :html5
     b.use :placeholder
     b.optional :maxlength
     b.optional :minlength
     b.optional :readonly
-    b.use :label, class: 'control-label'
-
-    b.use :input
-    b.use :error, wrap_with: { tag: 'span', class: 'help-block' }
-    b.use :hint,  wrap_with: { tag: 'p', class: 'help-block' }
+    b.use :label
+    b.use :input, class: 'form-control-file', error_class: 'is-invalid', valid_class: 'is-valid'
+    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
   end
 
-  config.wrappers :vertical_boolean, tag: 'div', class: 'form-group', error_class: 'has-error', valid_class: 'has-success' do |b|
+  # vertical multi select
+  config.wrappers :vertical_multi_select, tag: 'div', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
     b.use :html5
     b.optional :readonly
-
-    b.wrapper tag: 'div', class: 'checkbox' do |ba|
-      ba.use :label_input
+    b.use :label, class: 'form-control-label'
+    b.wrapper tag: 'div', class: 'd-flex flex-row justify-content-between align-items-center' do |ba|
+      ba.use :input, class: 'form-control mx-1', error_class: 'is-invalid', valid_class: 'is-valid'
     end
-
-    b.use :error, wrap_with: { tag: 'span', class: 'help-block' }
-    b.use :hint,  wrap_with: { tag: 'p', class: 'help-block' }
+    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
   end
 
-  config.wrappers :vertical_radio_and_checkboxes, tag: 'div', class: 'form-group', error_class: 'has-error', valid_class: 'has-success' do |b|
+  # vertical range input
+  config.wrappers :vertical_range, tag: 'div', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
     b.use :html5
+    b.use :placeholder
     b.optional :readonly
-    b.use :label, class: 'control-label'
-    b.use :input
-    b.use :error, wrap_with: { tag: 'span', class: 'help-block' }
-    b.use :hint,  wrap_with: { tag: 'p', class: 'help-block' }
+    b.optional :step
+    b.use :label
+    b.use :input, class: 'form-control-range', error_class: 'is-invalid', valid_class: 'is-valid'
+    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
   end
 
-  config.wrappers :horizontal_form, tag: 'div', class: 'form-group', error_class: 'has-error', valid_class: 'has-success' do |b|
+
+  # horizontal forms
+  #
+  # horizontal default_wrapper
+  config.wrappers :horizontal_form, tag: 'div', class: 'form-group row', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
     b.use :html5
     b.use :placeholder
     b.optional :maxlength
@@ -69,58 +148,103 @@ SimpleForm.setup do |config|
     b.optional :pattern
     b.optional :min_max
     b.optional :readonly
-    b.use :label, class: 'col-sm-3 control-label'
-
-    b.wrapper tag: 'div', class: 'col-sm-9' do |ba|
-      ba.use :input, class: 'form-control'
-      ba.use :error, wrap_with: { tag: 'span', class: 'help-block' }
-      ba.use :hint,  wrap_with: { tag: 'p', class: 'help-block' }
+    b.use :label, class: 'col-sm-3 col-form-label'
+    b.wrapper :grid_wrapper, tag: 'div', class: 'col-sm-9' do |ba|
+      ba.use :input, class: 'form-control', error_class: 'is-invalid', valid_class: 'is-valid'
+      ba.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback' }
+      ba.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
     end
   end
 
-  config.wrappers :horizontal_file_input, tag: 'div', class: 'form-group', error_class: 'has-error', valid_class: 'has-success' do |b|
+  # horizontal input for boolean
+  config.wrappers :horizontal_boolean, tag: 'div', class: 'form-group row', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
     b.use :html5
-    b.use :placeholder
-    b.optional :maxlength
-    b.optional :minlength
     b.optional :readonly
-    b.use :label, class: 'col-sm-3 control-label'
-
-    b.wrapper tag: 'div', class: 'col-sm-9' do |ba|
-      ba.use :input
-      ba.use :error, wrap_with: { tag: 'span', class: 'help-block' }
-      ba.use :hint,  wrap_with: { tag: 'p', class: 'help-block' }
+    b.wrapper tag: 'label', class: 'col-sm-3' do |ba|
+      ba.use :label_text
     end
-  end
-
-  config.wrappers :horizontal_boolean, tag: 'div', class: 'form-group', error_class: 'has-error', valid_class: 'has-success' do |b|
-    b.use :html5
-    b.optional :readonly
-
-    b.wrapper tag: 'div', class: 'col-sm-offset-3 col-sm-9' do |wr|
-      wr.wrapper tag: 'div', class: 'checkbox' do |ba|
-        ba.use :label_input
+    b.wrapper :grid_wrapper, tag: 'div', class: 'col-sm-9' do |wr|
+      wr.wrapper :form_check_wrapper, tag: 'div', class: 'form-check' do |bb|
+        bb.use :input, class: 'form-check-input', error_class: 'is-invalid', valid_class: 'is-valid'
+        bb.use :label, class: 'form-check-label'
+        bb.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+        bb.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
       end
-
-      wr.use :error, wrap_with: { tag: 'span', class: 'help-block' }
-      wr.use :hint,  wrap_with: { tag: 'p', class: 'help-block' }
     end
   end
 
-  config.wrappers :horizontal_radio_and_checkboxes, tag: 'div', class: 'form-group', error_class: 'has-error', valid_class: 'has-success' do |b|
+  # horizontal input for radio buttons and check boxes
+  config.wrappers :horizontal_collection, item_wrapper_class: 'form-check', tag: 'div', class: 'form-group row', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
     b.use :html5
     b.optional :readonly
-
-    b.use :label, class: 'col-sm-3 control-label'
-
-    b.wrapper tag: 'div', class: 'col-sm-9' do |ba|
-      ba.use :input
-      ba.use :error, wrap_with: { tag: 'span', class: 'help-block' }
-      ba.use :hint,  wrap_with: { tag: 'p', class: 'help-block' }
+    b.use :label, class: 'col-sm-3 form-control-label'
+    b.wrapper :grid_wrapper, tag: 'div', class: 'col-sm-9' do |ba|
+      ba.use :input, class: 'form-check-input', error_class: 'is-invalid', valid_class: 'is-valid'
+      ba.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+      ba.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
     end
   end
 
-  config.wrappers :inline_form, tag: 'div', class: 'form-group', error_class: 'has-error', valid_class: 'has-success' do |b|
+  # horizontal input for inline radio buttons and check boxes
+  config.wrappers :horizontal_collection_inline, item_wrapper_class: 'form-check form-check-inline', tag: 'div', class: 'form-group row', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.optional :readonly
+    b.use :label, class: 'col-sm-3 form-control-label'
+    b.wrapper :grid_wrapper, tag: 'div', class: 'col-sm-9' do |ba|
+      ba.use :input, class: 'form-check-input', error_class: 'is-invalid', valid_class: 'is-valid'
+      ba.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+      ba.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+    end
+  end
+
+  # horizontal file input
+  config.wrappers :horizontal_file, tag: 'div', class: 'form-group row', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.use :placeholder
+    b.optional :maxlength
+    b.optional :minlength
+    b.optional :readonly
+    b.use :label, class: 'col-sm-3 form-control-label'
+    b.wrapper :grid_wrapper, tag: 'div', class: 'col-sm-9' do |ba|
+      ba.use :input, error_class: 'is-invalid', valid_class: 'is-valid'
+      ba.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+      ba.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+    end
+  end
+
+  # horizontal multi select
+  config.wrappers :horizontal_multi_select, tag: 'div', class: 'form-group row', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.optional :readonly
+    b.use :label, class: 'col-sm-3 control-label'
+    b.wrapper :grid_wrapper, tag: 'div', class: 'col-sm-9' do |ba|
+      ba.wrapper tag: 'div', class: 'd-flex flex-row justify-content-between align-items-center' do |bb|
+        bb.use :input, class: 'form-control mx-1', error_class: 'is-invalid', valid_class: 'is-valid'
+      end
+      ba.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+      ba.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+    end
+  end
+
+  # horizontal range input
+  config.wrappers :horizontal_range, tag: 'div', class: 'form-group row', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.use :placeholder
+    b.optional :readonly
+    b.optional :step
+    b.use :label, class: 'col-sm-3 form-control-label'
+    b.wrapper :grid_wrapper, tag: 'div', class: 'col-sm-9' do |ba|
+      ba.use :input, class: 'form-control-range', error_class: 'is-invalid', valid_class: 'is-valid'
+      ba.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+      ba.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+    end
+  end
+
+
+  # inline forms
+  #
+  # inline default_wrapper
+  config.wrappers :inline_form, tag: 'span', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
     b.use :html5
     b.use :placeholder
     b.optional :maxlength
@@ -130,37 +254,186 @@ SimpleForm.setup do |config|
     b.optional :readonly
     b.use :label, class: 'sr-only'
 
-    b.use :input, class: 'form-control'
-    b.use :error, wrap_with: { tag: 'span', class: 'help-block' }
-    b.use :hint,  wrap_with: { tag: 'p', class: 'help-block' }
+    b.use :input, class: 'form-control', error_class: 'is-invalid', valid_class: 'is-valid'
+    b.use :error, wrap_with: { tag: 'div', class: 'invalid-feedback' }
+    b.optional :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
   end
 
-  config.wrappers :multi_select, tag: 'div', class: 'form-group', error_class: 'has-error', valid_class: 'has-success' do |b|
+  # inline input for boolean
+  config.wrappers :inline_boolean, tag: 'span', class: 'form-check flex-wrap justify-content-start mr-sm-2', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
     b.use :html5
     b.optional :readonly
-    b.use :label, class: 'control-label'
-    b.wrapper tag: 'div', class: 'form-inline' do |ba|
-      ba.use :input, class: 'form-control'
-      ba.use :error, wrap_with: { tag: 'span', class: 'help-block' }
-      ba.use :hint,  wrap_with: { tag: 'p', class: 'help-block' }
+    b.use :input, class: 'form-check-input', error_class: 'is-invalid', valid_class: 'is-valid'
+    b.use :label, class: 'form-check-label'
+    b.use :error, wrap_with: { tag: 'div', class: 'invalid-feedback' }
+    b.optional :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+  end
+
+
+  # bootstrap custom forms
+  #
+  # custom input for boolean
+  config.wrappers :custom_boolean, tag: 'fieldset', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.optional :readonly
+    b.wrapper :form_check_wrapper, tag: 'div', class: 'custom-control custom-checkbox' do |bb|
+      bb.use :input, class: 'custom-control-input', error_class: 'is-invalid', valid_class: 'is-valid'
+      bb.use :label, class: 'custom-control-label'
+      bb.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback' }
+      bb.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
     end
   end
-  # Wrappers for forms and inputs using the Bootstrap toolkit.
-  # Check the Bootstrap docs (http://getbootstrap.com)
-  # to learn about the different styles for forms and inputs,
-  # buttons and other elements.
+
+  config.wrappers :custom_boolean_switch, tag: 'fieldset', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.optional :readonly
+    b.wrapper :form_check_wrapper, tag: 'div', class: 'custom-control custom-checkbox-switch' do |bb|
+      bb.use :input, class: 'custom-control-input', error_class: 'is-invalid', valid_class: 'is-valid'
+      bb.use :label, class: 'custom-control-label'
+      bb.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback' }
+      bb.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+    end
+  end
+
+  # custom input for radio buttons and check boxes
+  config.wrappers :custom_collection, item_wrapper_class: 'custom-control', tag: 'fieldset', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.optional :readonly
+    b.wrapper :legend_tag, tag: 'legend', class: 'col-form-label pt-0' do |ba|
+      ba.use :label_text
+    end
+    b.use :input, class: 'custom-control-input', error_class: 'is-invalid', valid_class: 'is-valid'
+    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+  end
+
+  # custom input for inline radio buttons and check boxes
+  config.wrappers :custom_collection_inline, item_wrapper_class: 'custom-control custom-control-inline', tag: 'fieldset', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.optional :readonly
+    b.wrapper :legend_tag, tag: 'legend', class: 'col-form-label pt-0' do |ba|
+      ba.use :label_text
+    end
+    b.use :input, class: 'custom-control-input', error_class: 'is-invalid', valid_class: 'is-valid'
+    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+  end
+
+  # custom file input
+  config.wrappers :custom_file, tag: 'div', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.use :placeholder
+    b.optional :maxlength
+    b.optional :minlength
+    b.optional :readonly
+    b.use :label, class: 'form-control-label'
+    b.wrapper :custom_file_wrapper, tag: 'div', class: 'custom-file' do |ba|
+      ba.use :input, class: 'custom-file-input', error_class: 'is-invalid', valid_class: 'is-valid'
+      ba.use :label, class: 'custom-file-label'
+      ba.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback' }
+    end
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+  end
+
+  # custom multi select
+  config.wrappers :custom_multi_select, tag: 'div', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.optional :readonly
+    b.use :label, class: 'form-control-label'
+    b.wrapper tag: 'div', class: 'd-flex flex-row justify-content-between align-items-center' do |ba|
+      ba.use :input, class: 'custom-select mx-1', error_class: 'is-invalid', valid_class: 'is-valid'
+    end
+    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+  end
+
+  # custom range input
+  config.wrappers :custom_range, tag: 'div', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.use :placeholder
+    b.optional :readonly
+    b.optional :step
+    b.use :label, class: 'form-control-label'
+    b.use :input, class: 'custom-range', error_class: 'is-invalid', valid_class: 'is-valid'
+    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+  end
+
+
+  # Input Group - custom component
+  # see example app and config at https://github.com/rafaelfranca/simple_form-bootstrap
+  # config.wrappers :input_group, tag: 'div', class: 'form-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+  #   b.use :html5
+  #   b.use :placeholder
+  #   b.optional :maxlength
+  #   b.optional :minlength
+  #   b.optional :pattern
+  #   b.optional :min_max
+  #   b.optional :readonly
+  #   b.use :label, class: 'form-control-label'
+  #   b.wrapper :input_group_tag, tag: 'div', class: 'input-group' do |ba|
+  #     ba.optional :prepend
+  #     ba.use :input, class: 'form-control', error_class: 'is-invalid', valid_class: 'is-valid'
+  #     ba.optional :append
+  #   end
+  #   b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback d-block' }
+  #   b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+  # end
+
+
+  # Floating Labels form
+  #
+  # floating labels default_wrapper
+  config.wrappers :floating_labels_form, tag: 'div', class: 'form-label-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.use :placeholder
+    b.optional :maxlength
+    b.optional :minlength
+    b.optional :pattern
+    b.optional :min_max
+    b.optional :readonly
+    b.use :input, class: 'form-control', error_class: 'is-invalid', valid_class: 'is-valid'
+    b.use :label, class: 'form-control-label'
+    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback' }
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+  end
+
+  # custom multi select
+  config.wrappers :floating_labels_select, tag: 'div', class: 'form-label-group', error_class: 'form-group-invalid', valid_class: 'form-group-valid' do |b|
+    b.use :html5
+    b.optional :readonly
+    b.use :input, class: 'custom-select custom-select-lg', error_class: 'is-invalid', valid_class: 'is-valid'
+    b.use :label, class: 'form-control-label'
+    b.use :full_error, wrap_with: { tag: 'div', class: 'invalid-feedback' }
+    b.use :hint, wrap_with: { tag: 'small', class: 'form-text text-muted' }
+  end
+
+
+  # The default wrapper to be used by the FormBuilder.
   config.default_wrapper = :vertical_form
+
+  # Custom wrappers for input types. This should be a hash containing an input
+  # type as key and the wrapper that will be used for all inputs with specified type.
   config.wrapper_mappings = {
-    check_boxes: :vertical_radio_and_checkboxes,
-    radio_buttons: :vertical_radio_and_checkboxes,
-    file: :vertical_file_input,
-    boolean: :vertical_boolean,
-    datetime: :multi_select,
-    date: :multi_select,
-    time: :multi_select
+    boolean:       :vertical_boolean,
+    check_boxes:   :vertical_collection,
+    date:          :vertical_multi_select,
+    datetime:      :vertical_multi_select,
+    file:          :vertical_file,
+    radio_buttons: :vertical_collection,
+    range:         :vertical_range,
+    time:          :vertical_multi_select
   }
 
-  # Defines validation classes to the input_field. By default it's nil.
-  # config.input_field_valid_class = 'is-valid'
-  # config.input_field_error_class = 'is-invalid'
+  # enable custom form wrappers
+  # config.wrapper_mappings = {
+  #   boolean:       :custom_boolean,
+  #   check_boxes:   :custom_collection,
+  #   date:          :custom_multi_select,
+  #   datetime:      :custom_multi_select,
+  #   file:          :custom_file,
+  #   radio_buttons: :custom_collection,
+  #   range:         :custom_range,
+  #   time:          :custom_multi_select
+  # }
 end