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Contents
module Forge
module CanUseAsset
def self.included(mod)
mod.extend(ClassMethods)
end
module ClassMethods
def can_use_asset_for(*args)
args.each do |field|
self.send("before_#{field}_post_process".to_sym, "prevent_#{field}_pdf_thumbnail".to_sym)
self.send(:before_validation, "check_for_#{field}_asset".to_sym)
self.send(:attr_accessor, "#{field}_asset_id".to_sym, "#{field}_asset_url".to_sym)
define_method("check_for_#{field}_asset".to_sym) do
raise "Your attachment must have a :thumbnail style (ideally '120x108#') to be compatible with can_use_asset" unless self.send(field.to_sym).styles.has_key?(:thumbnail)
asset = Asset.find_by_id(self.send("#{field}_asset_id".to_sym))
self.send("#{field}=".to_sym, File.new(asset.attachment.path)) unless asset.blank?
end
define_method("#{field}_icon_path".to_sym) do
icon_path = "/images/forge/asset-icons"
case self.send("#{field}_content_type")
when /image/
self.send(field.to_sym).url(:thumbnail)
when /audio/
ActionController::Base.helpers.asset_path "forge/asset-icons/audio.jpg"
when /excel/
ActionController::Base.helpers.asset_path "forge/asset-icons/spreadsheet.jpg"
when /pdf/
ActionController::Base.helpers.asset_path "forge/asset-icons/pdf.jpg"
else
ActionController::Base.helpers.asset_path "forge/asset-icons/misc.jpg"
end
end
define_method("prevent_#{field}_pdf_thumbnail".to_sym) do
return false unless self.send("#{field}_content_type".to_sym).index("image")
end
end
end
end
end
end
ActiveRecord::Base.send(:include, Forge::CanUseAsset)
Version data entries
11 entries across 11 versions & 1 rubygems