#118 Liquid

Jul 14, 2008 | 16 minutes | Plugins, Views

Liquid is a safe way to provide a powerful template language to the site's users. See how in this episode.

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Resources

          pages/show.html.erb
                
        <%= liquidize @page.content, 'page' => @page %>
        
<%= liquidize @page.content, 'page' => @page %>

          environment.rb
                
        config.gem 'liquid'
        
config.gem 'liquid'

          application_helper.rb
                
        def liquidize(content, arguments)
  RedCloth.new(Liquid::Template.parse(content).render(arguments, :filters => [LiquidFilters])).to_html
end
        
def liquidize(content, arguments)
  RedCloth.new(Liquid::Template.parse(content).render(arguments, :filters => [LiquidFilters])).to_html
end

          lib/liquid_filters.rb
                
        module LiquidFilters
  include ActionView::Helpers::NumberHelper
  
  def currency(price)
    number_to_currency(price)
  end
end
        
module LiquidFilters
  include ActionView::Helpers::NumberHelper
  
  def currency(price)
    number_to_currency(price)
  end
end

          category.rb
                
        liquid_methods :name
        
liquid_methods :name

          page.rb
                
        liquid_methods :products

def products
  Product.all
end
        
liquid_methods :products

def products
  Product.all
end

          product.rb
                
        liquid_methods :name, :price, :category
        
liquid_methods :name, :price, :category

          bash
                
        rake gems:install
gem server
        
rake gems:install
gem server

          liquid
                
        # page liquid content
{% for product in page.products %}
*{{ product.name }}* {{ product.price | currency }}
Category: {{ product.category.name }}
{% endfor %}
        
# page liquid content
{% for product in page.products %}
*{{ product.name }}* {{ product.price | currency }}
Category: {{ product.category.name }}
{% endfor %}

Full Source Code