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Contents
require 'ostruct'
module Refinery
module Helpers
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[: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 |image_match|
begin
uid = Dragonfly::Job.from_path(
"#{image_match.match(%r{(/system/images/.+?)/})[1]}", Dragonfly[: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 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?
original_width = image.image_width
original_height = image.image_height
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
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems