use simple_for and form for

Gemfile

@@ -11,6 +11,9 @@ gem "importmap-rails"
 gem "sprockets-rails"
 gem "devise"
 
+gem "simple_form" , "5.1.0"
+gem "simple_form_tailwind_css"
+
 gem "ruby2js" , git: "https://github.com/ruby2js/ruby2js/" , branch: "haml_fix"
 
 group :development, :test do

Gemfile.lock

@@ -142,6 +142,8 @@ GEM
       activesupport (>= 5.1)
       haml (>= 4.0.6)
       railties (>= 5.1)
+    heroicon (1.0.0)
+      rails (>= 5.2)
     i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     importmap-rails (1.1.5)
@@ -233,6 +235,12 @@ GEM
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)
     shellany (0.0.1)
+    simple_form (5.1.0)
+      actionpack (>= 5.2)
+      activemodel (>= 5.2)
+    simple_form_tailwind_css (1.0.0)
+      heroicon
+      simple_form
     sprockets (4.1.1)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
@@ -276,6 +284,8 @@ DEPENDENCIES
   puma
   ruby2js!
   selenium-webdriver
+  simple_form (= 5.1.0)
+  simple_form_tailwind_css
   sprockets-rails
   tailwindcss-rails
   webdrivers

config/initializers/simple_form.rb

@@ -0,0 +1,210 @@
+# frozen_string_literal: true
+#
+# Uncomment this and change the path if necessary to include your own
+# components.
+# See https://github.com/heartcombo/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|
+  # Wrappers are used by the form builder to generate a
+  # complete input. You can remove any component from the
+  # wrapper, change the order or even add your own to the
+  # stack. The options given below are used to wrap the
+  # whole input.
+
+  config.wrappers :default, tag: 'div', class: 'mt-4', error_class: '', valid_class: '' 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: "block text-sm font-medium text-gray-700"
+    b.use :input,
+      class: 'appearance-none block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm placeholder-gray-400 focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm',
+      error_class: 'block w-full pr-10 border-red-300 text-red-900 placeholder-red-300 focus:outline-none focus:ring-red-500 focus:border-red-500 sm:text-sm rounded-md'
+    b.use :full_error, wrap_with: { tag: 'p', class: 'mt-2 text-sm text-red-600' }
+    b.use :hint,  wrap_with: { tag: :p, class: "mt-2 text-sm text-gray-500" }
+  end
+
+  config.wrappers :prepend_string, tag: 'div', class: '', error_class: '', valid_class: '' 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: "block text-sm font-medium text-gray-700"
+
+    b.wrapper tag: 'div', class: 'mt-1 flex rounded-md shadow-sm' do |d|
+      d.use :prepend
+      d.use :input,
+        class: "flex-1 min-w-0 block w-full px-3 py-2 rounded-none rounded-r-md focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm border-gray-300",
+        error_class: "flex-1 min-w-0 block w-full px-3 py-2 rounded-none rounded-r-md focus:ring-red-500 focus:border-red-500 sm:text-sm border-red-300 text-red-900 placeholder-red-300"
+    end
+    b.use :full_error, wrap_with: { tag: "p", class: "mt-2 text-sm text-red-600" }
+    b.use :hint,  wrap_with: { tag: :p, class: "mt-2 text-sm text-gray-500" }
+  end
+
+  config.wrappers :append_string, tag: 'div', class: '', error_class: '', valid_class: '' 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: "block text-sm font-medium text-gray-700"
+
+    b.wrapper tag: 'div', class: 'mt-1 flex rounded-md shadow-sm' do |d|
+      d.use :input,
+        class: "flex-1 min-w-0 block w-full px-3 py-2 rounded-none rounded-l-md focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm border-gray-300",
+        error_class: "flex-1 min-w-0 block w-full px-3 py-2 rounded-none rounded-l-md focus:ring-red-500 focus:border-red-500 sm:text-sm border-red-300 text-red-900 placeholder-red-300"
+      d.use :append
+    end
+    b.use :full_error, wrap_with: { tag: "p", class: "mt-2 text-sm text-red-600" }
+    b.use :hint,  wrap_with: { tag: :p, class: "mt-2 text-sm text-gray-500" }
+  end
+
+  config.wrappers :corner_hint, tag: :div 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.wrapper tag: :div, class: "flex justify-between", error_class: nil, valid_class: nil do |c|
+      c.use :label, class: "block text-sm font-medium text-gray-700"
+      c.use :hint,  wrap_with: { tag: :span, class: "text-sm text-gray-500" }
+    end
+
+    b.use :input,
+      class: "appearance-none block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm placeholder-gray-400 focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm",
+      error_class: "block w-full pr-10 border-red-300 text-red-900 placeholder-red-300 focus:outline-none focus:ring-red-500 focus:border-red-500 sm:text-sm rounded-md"
+    b.use :full_error, wrap_with: { tag: "p", class: "mt-2 text-sm text-red-600" }
+  end
+
+  # The default wrapper to be used by the FormBuilder.
+  config.default_wrapper = :default
+
+  # Define the way to render check boxes / radio buttons with labels.
+  # Defaults to :nested for bootstrap config.
+  #   inline: input + label
+  #   nested: label > input
+  config.boolean_style = :nested
+
+  # Default class for buttons
+  config.button_class = nil
+
+  # Method used to tidy up errors. Specify any Rails Array method.
+  # :first lists the first message for each field.
+  # Use :to_sentence to list all errors for each field.
+  # config.error_method = :first
+
+  # Default tag used for error notification helper.
+  config.error_notification_tag = :div
+
+  # CSS class to add for error notification helper.
+  config.error_notification_class = ''
+
+  # Series of attempts to detect a default label method for collection.
+  # config.collection_label_methods = [ :to_label, :name, :title, :to_s ]
+
+  # Series of attempts to detect a default value method for collection.
+  # config.collection_value_methods = [ :id, :to_s ]
+
+  # You can wrap a collection of radio/check boxes in a pre-defined tag, defaulting to none.
+  # config.collection_wrapper_tag = nil
+
+  # You can define the class to use on all collection wrappers. Defaulting to none.
+  # config.collection_wrapper_class = nil
+
+  # You can wrap each item in a collection of radio/check boxes with a tag,
+  # defaulting to :span.
+  # config.item_wrapper_tag = :span
+
+  # You can define a class to use in all item wrappers. Defaulting to none.
+  # config.item_wrapper_class = nil
+
+  # How the label text should be generated altogether with the required text.
+  config.label_text = lambda { |label, required, explicit_label| "#{label}" }
+
+  # You can define the class to use on all labels. Default is nil.
+  # config.label_class = nil
+
+  # You can define the default class to be used on forms. Can be overriden
+  # with `html: { :class }`. Defaulting to none.
+  config.default_form_class = nil
+  config.form_class = nil
+
+  # You can define which elements should obtain additional classes
+  config.generate_additional_classes_for = []
+
+  # Whether attributes are required by default (or not). Default is true.
+  # config.required_by_default = true
+
+  # Tell browsers whether to use the native HTML5 validations (novalidate form option).
+  # These validations are enabled in SimpleForm's internal config but disabled by default
+  # in this configuration, which is recommended due to some quirks from different browsers.
+  # To stop SimpleForm from generating the novalidate option, enabling the HTML5 validations,
+  # change this configuration to true.
+  config.browser_validations = false
+
+  # Custom mappings for input types. This should be a hash containing a regexp
+  # to match as key, and the input type that will be used when the field name
+  # matches the regexp as value.
+  # config.input_mappings = { /count/ => :integer }
+
+  # 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 = {
+    string: :default,
+    prepend_string: :prepend_string,
+    append_string: :append_string,
+  }
+
+  # Namespaces where SimpleForm should look for custom input classes that
+  # override default inputs.
+  # config.custom_inputs_namespaces << "CustomInputs"
+
+  # Default priority for time_zone inputs.
+  # config.time_zone_priority = nil
+
+  # Default priority for country inputs.
+  # config.country_priority = nil
+
+  # When false, do not use translations for labels.
+  # config.translate_labels = true
+
+  # Automatically discover new inputs in Rails' autoload path.
+  # config.inputs_discovery = true
+
+  # Cache SimpleForm inputs discovery
+  # config.cache_discovery = !Rails.env.development?
+
+  # Default class for inputs
+  # config.input_class = nil
+
+  # Define the default class of the input wrapper of the boolean input.
+  config.boolean_label_class = 'checkbox'
+
+  # Defines if the default input wrapper class should be included in radio
+  # collection wrappers.
+  # config.include_default_input_wrapper_class = true
+
+  # Defines which i18n scope will be used in Simple Form.
+  # config.i18n_scope = 'simple_form'
+
+  # 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'
+end