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



6
7
8
9
10
11
12
13
14
15
16
17
 
# File 'app/helpers/refinery/image_helper.rb', line 6

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

      image_fu Image.where(:image_uid => job.uid).first, thumbnail
    rescue Dragonfly::Serializer::BadString
      img
    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 %>



23
24
25
26
27
28
29
30
31
32
33
 
# File 'app/helpers/refinery/image_helper.rb', line 23

def image_fu(image, geometry = nil, options = {})
  return nil if image.blank?

  thumbnail_args = options.slice(:strip)
  thumbnail_args[:geometry] = geometry if geometry

  image_tag_args = (image.thumbnail_dimensions(geometry) rescue {})
  image_tag_args[:alt] = image.respond_to?(:title) ? image.title : image.image_name

  image_tag(image.thumbnail(thumbnail_args).url, image_tag_args.merge(options))
end