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Contents
module Refinery
module ImageHelper
# 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
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[:refinery_images]
image_fu Image.where(:image_uid => job.uid).first, thumbnail
rescue Dragonfly::Serializer::BadString
img
end
end
end
# 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 %>
def image_fu(image, geometry = nil, options={})
if image.present?
dimensions = (image.thumbnail_dimensions(geometry) rescue {})
image_tag(image.thumbnail(:geometry => geometry,
:strip => options[:strip]).url, {
:alt => image.respond_to?(:title) ? image.title : image.image_name,
}.merge(dimensions).merge(options))
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems