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Kuhsaft has been replaced by qBrick. Please switch as soon as possible.

Kuhsaft. A CMS as simple as it could be

The Who, What and Why?

Kuhsaft is made by some Rails developers at Screen Concept that got tired of fiddling with unusable content management sytems. We are trying hard to make a minimalistic and developer friendly CMS. Our goal is to provide a system for ourselves and our customers that makes the of-the-shelf website project a hasslefree thing. On one side easy to set up, integrate and customize (good for devs) on the other hand it should be easily usable by anyone.

What's in it

  • A modular system to integrate any type of content structure
  • Multilanguage content
  • much more


Kuhsaft requires:

  • A Rails 4 app to be integrated into
  • ImageMagick
  • An ActiveRecord compatible DB


Add Kuhsaft to your Gemfile:

gem 'kuhsaft'

And run

bundle install

to get the gem

Then install the assets and the migrations and run them:

rake kuhsaft:install:migrations
rake db:migrate
rake db:seed
rails generate kuhsaft:assets:install

You might want to change the language suffixes on the fields inside the create_kuhsaft_pages migration, depending on your app's default_locale.

Mount the kuhsaft engine in your routing file:

MyApp::Application.routes.draw do
  # add your app routes here
  mount Kuhsaft::Engine => '/'

Load the Kuhsaft assets into your app, so you have working grids, widgets etc:

# application.css.sass
@import 'kuhsaft/application'
//= require 'kuhsaft/application'

Finally, you need to define the image sizes for the image brick or use the defaults:

# your_app/config/initializers/kuhsaft.rb
Rails.application.config.to_prepare do
  Kuhsaft::Engine.configure do
    config.image_sizes.build_defaults! # creates 960x540 and 320x180 sizes

See "Configuring the image brick" for more details.


Kuhsaft itself does not ship with any form of authentication. However, it is fairly easy to add by plugging into the Kuhsaft::Cms::AdminController. An example with devise:

# config/initializers/kuhsaft.rb
Rails.application.config.to_prepare do
  Kuhsaft::Cms::AdminController.class_eval do
    before_filter :authenticate_user!

Also, be sure to have override the navigation partial in app/views/kuhsaft/cms/admin/_main_navigation.html.haml so you get a working logout button.

Extending the backend CSS/javascript

Kuhsaft installs a sass file in assets/stylesheets/kuhsaft/cms/customizations.css.sass and a coffeescript file in assets/javascripts/kuhsaft/cms/ which are loaded by the backend layout. Those files can be installed by running rails generate kuhsaft:assets:install.

Make sure they are in the config.assets.precompile array in environments like production where you usually precompile the assets. The generator will only add the necessary configs for the production env!


There's a dummy app inside spec/dummy. Get it running by executing the following steps:

rake setup
rake start_dummy


Making Kuhsaft helpers available to your app

As defined in the rails docs, load the helpers from our isolated Kuhsaft engine inside your application controller:

class ApplicationController < ActionController::Base
  helper Kuhsaft::Engine.helpers

Adding sublime video

Create an initializer file in your app inside config/initializers and set the sublime_video_token:

Rails.application.config.to_prepare do
  Kuhsaft::Engine.configure do
    # Get the token from the MySites section on the sublime video site
    config.sublime_video_token = '123abcd'

Require the sublime javascript with the following helper:

# in your application layout in the head section

Configuring the image brick

The image brick can process uploaded images into specific sizes. These sizes can be configured inside the engine configuration. You can also use the built-in default sizes:

# your_app/config/initializers/kuhsaft.rb
Rails.application.config.to_prepare do
  Kuhsaft::Engine.configure do
    config.image_sizes.build_defaults! # creates 960x540 and 320x180 sizes

You can also remove the default sizes:

# your_app/config/initializers/kuhsaft.rb
Rails.application.config.to_prepare do
  Kuhsaft::Engine.configure do
    config.image_sizes.clear! # .all is now empty

And most importantly, you can add custom sizes:

# your_app/config/initializers/kuhsaft.rb
Rails.application.config.to_prepare do
  Kuhsaft::Engine.configure do
    config.image_sizes.add(:side_box_vertical, 180, 460)
    config.image_sizes.add(:footer_teaser, 320, 220)

The name option is a unique identifier, which is also used for translating the dropdown in the brick. You can add your translation by using the translation path:


Configuring custom styles for bricks

Implement the available_display_styles on a brick model and return an array of css classnames: ['module-big', 'module-small']. These styles can be applied to a brick instance through the UI. In the frontend, use to_style_class to get the configured styles:

%my-brick{ class: brick.to_style_class }
  = brick.text # ... etc

After setting up display styles in specific model add your translations for the UI dropdown. E.g. you've added display styles to the TextBrick model:

      style1: 'My Style 1'
      style2: 'My Style 2'

Configuring Grid settings for Bricks

Include the Kuhsaft::Gridded Module on every Brick you want to display in a grid. Default grid options are 1 to 12 (representing columns) wich can be configured via the class method available_grid_sizes (should return an array of integers). Each instance of a gridded class will have a method gridded? wich returns true if a column size is set.

If the Gridded Module is added to a Custom Brick, it should provide a col_count integer field with default value 0.

add_column :your_awesome_brick, :col_count, :integer, default: 0

Adding custom templates with placeholder bricks

  • Save your partial in views/kuhsaft/placeholder_bricks/partials/_your_partial.html.haml
  • Add translations for your partial in config/locales/models/kuhsaft/placeholder_brick/locale.yml
  your_partial: Your Partial

Mixing Custom Models/Views/Controllers with Kuhsaft Pages

Use the custom page type:

Custom pages behave almost like redirect pages except that they can have content and meta tags like normal pages.

What can you use this for: To redirect to a custom controller that does whatever you want and still have CMS content along side it. Example usage in a host app:

In Custom Controller that page redirects to:

  def index
    # could also be extracted into before_action
    @page = Kuhsaft::Page.find(session[:kuhsaft_referrer]) if session[:kuhsaft_referrer]
    @somestuff =


= render file: 'kuhsaft/pages/show'

Invalidating placeholder bricks containing other models on model changes

Include the TouchPlaceholders module if your model is used within a placeholder brick and define which templates it appears in:

class Dummy < ActiveRecord::Base
  include Kuhsaft::TouchPlaceholders
  placeholder_templates 'some_template', 'some_other_template'

Adding additional content languages

If you want to translate your pages into another language, generate a new translation migration:

# translate your pages into french
rails g kuhsaft:translations:add fr


# translate your pages into swiss german
rails g kuhsaft:translations:add de-CH

This creates a new migration file inside db/migrate of your app. Run the migration as you normally do:

rake db:migrate

Finally, add the new translation locale to your available_locales inside your apps application.rb:

config.available_locales = [:en, :fr]


config.available_locales = [:en, 'de-CH']

Adding a language switch

Add scope around routes:

scope "(:locale)", locale: /de|en|fr/ do
  root 'kuhsaft/pages#show'

Set the locale in the ApplicationController in a before_action and set default url options:

before_action :set_locale

def set_locale
  if I18n.locale_available? params[:locale]
    I18n.locale = params[:locale]
    I18n.locale = I18n.default_locale

def default_url_options(options = {})
  { locale: I18n.locale }

Add method to ApplicationHelper which redirects to homepage when current page is not translated. Make sure to have the homepage translated in every available language.

def localized_url(url, target_locale)
  page = Kuhsaft::Page.find_by_url("#{I18n.locale}/#{url}")
  I18n.with_locale target_locale do
    translated_url = page.try :url
    if translated_url.present?
      root_path(locale: target_locale)

def language_link(url, locale)
  localized_url(params[:url], locale)

Add language switch to navigation: do |navigation|
  I18n.available_locales.each do |locale|
    primary.item locale, locale.to_s.upcase, language_link(params[:url], locale), highlights_on: { I18n.locale == locale }

Make sure to render only pages which are translated and published by using published and translated scope, so pages without translation and which are not published will not be displayed in the navigation. Here is an example of a possible navigation: do |navigation|
  navigation.items do |primary|
    primary.dom_class = 'right'
    primary.selected_class = 'active'
    Kuhsaft::Page.find_by(slug_de: 'meta-navigation').children.published.translated.each do |page|
      primary.item, page.title,, class: 'contact icon'

    primary.item '', 'Sprache', '#', class: 'language icon has-dropdown'do |language|
      I18n.available_locales.each do |locale|
        language.dom_class = 'dropdown'
        language.item locale, language_text(locale), language_link(params[:url], locale), highlights_on: { I18n.locale == locale }, class: "icon lang-#{locale}"

Styling the content

By default, the text editor lets you add the following tags, for which you should supply some styles in your app:

p, h1, h2, h3, h4, table, a, strong, em

Building a navigation

Building a navigation is simple, access to the page tree is available through the common methods built into the ancestry gem. Just make sure you are only accessing published pages for your production site, using the published scope. Or if your page is translated, using the translated scope and the published scope.

2 level navigation example using simple-navigation do |navigation|
  navigation.items do |primary|
    # build first level
    Kuhsaft::Page.roots.published.translated.each do |page|
      primary.item, page.title, do |sub_item|
        # build second level
        page.children.published.translated.each do |subpage|
          sub_item.item, subpage.title,

Use the page_title attribute in your app

Kuhsaft::Pages will provide a %title tag containing its page_title (or the required titleif no title is present). Simply yield for :head in your application.html to use it.

  = yield(:head)

Modifying the backend navigation

Simply override the default partial for the main navigation in your app with your own file at kuhsaft/cms/admin/_main_navigation.html.haml

Adding your own Bricks

  • Create your Brick model in app/models, for example CaptionBrick, which inherits from Kuhsaft::Brick.
  • If u use a string field add a max-length validation of 255 characters. To prevent a ActiveRecord::StatementInvalid Error.
  • Create a migration which adds the necessary fields to the kuhsaft_bricks table.
  • If your brick should be accessible via UI, add a BrickType into the seeds or add a migration: Kuhsaft::BrickType.create(:class_name => 'CaptionBrick', :group => 'elements')
  • Add the edit and show partials to your views, e.g: app/views/caption_bricks/caption_brick/_edit.html.haml
  • Add the childs partial to your views, if you want to render your bricks childs with your own html: app/views/caption_bricks/caption_brick/_childs.html.haml
  • Implement the fulltext method on your brick, return anything you want to be searchable.
  • Customize the edit form behaviour of your brick by overriding methods like to_style_class?. See the Brick and BrickList files for more methods.

Use the Kuhsaft ImageBrickImageUploader for your own Brick

Kuhsaft has a module called ImageUploaderMounting. This module mounts the ImageBrickImageUploader and includes a callback method which handles that the image sizes will be updated after save.

class CustomBrick < Brick
  include Kuhsaft::ImageUploaderMounting

If you do not include this module, then the images will not be changed when selecting one of your own image sizes. See "Configuring the image brick" for more details on creating your own image sizes.

Integrating search

Kuhsaft supports fulltext search when using PostgreSQL with a simple LIKE fallback for any other ActiveRecord DB.

Add a call to the search_page_form helper in your views. This renders the default search form. The query will be executed by kuhsaft.

# e.g. _footer.html.haml
= search_page_form

To customize the search and result views you can add your own partials to your rails app. The following partials are overridable.

├── _form.html.haml           # Search form
├── _results.html.haml        # Results list (@pages)
└── _results_entry.html.haml  # Single result entry (@page)

When using PostgreSQL, an additional attribute excerpt will be available on the page model. It includes a highlighted excerpt of the matching fulltext column.

Selecting CMS pages in CKEditor (API)

The pages API is available under /:locale/api/pages.json. Only the title and url attribute is rendered in the json.


Add the following lines to your ck-config.js file. The first line disables the standard link plugin. The second line enables the adv_link plugin, which we need for the CMS Page link dialogue in CKEditor.

config.removePlugins = 'link'
config.extraPlugins = 'adv_link'

Do not forget to update your config.assets.precompile array. Add the following to your existing array ckeditor/adv_link/*.


See the file LICENSE.

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