Module: Refinery::ImageHelper

Defined in:
app/helpers/refinery/image_helper.rb

Instance Method Summary collapse

Instance Method Details

#content_fu(content, thumbnail) ⇒ Object

replace all system images with a thumbnail version of them (handy for all images inside a page part) for example, <%= content_fu(@page.content_for(:body), ‘96x96#c’) %> converts all /system/images to a 96x96 cropped thumbnail



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# File 'app/helpers/refinery/image_helper.rb', line 8

def content_fu(content, thumbnail)
  content.gsub(%r{<img.+?src=['"](/system/images/.+?)/.+?/>}) do |image_match|
     begin
       uid = Dragonfly::Job.from_path(
                "#{image_match.match(%r{(/system/images/.+?)/})[1]}", Dragonfly[:refinery_images]
             ).uid

       image_fu Image.where(:image_uid => uid).first, thumbnail
     rescue
       # FAIL, don't care why but return what we found initially.
       image_match
     end
   end
end

#image_fu(image, geometry = nil, options = {}) ⇒ Object

image_fu is a helper for inserting an image that has been uploaded into a template. Say for example that we had a @model.image (@model having a belongs_to :image relationship) and we wanted to display a thumbnail cropped to 200x200 then we can use image_fu like this: <%= image_fu @model.image, ‘200x200’ %> or with no thumbnail: <%= image_fu @model.image %>



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# File 'app/helpers/refinery/image_helper.rb', line 27

def image_fu(image, geometry = nil, options={})
  if image.present?
    dimensions = (image.thumbnail_dimensions(geometry) rescue {})

    image_tag(image.thumbnail(geometry).url, {
      :alt => image.respond_to?(:title) ? image.title : image.image_name,
    }.merge(dimensions).merge(options))
  end
end