forked from bterkuile/dm-paperclip
/
paperclip_tasks.rake
38 lines (35 loc) · 1.08 KB
/
paperclip_tasks.rake
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def obtain_class
class_name = ENV['CLASS'] || ENV['class']
raise "Must specify CLASS" unless class_name
@klass = Object.const_get(class_name)
end
def obtain_attachments
name = ENV['ATTACHMENT'] || ENV['attachment']
raise "Class #{@klass.name} has no attachments specified" unless @klass.respond_to?(:attachment_definitions)
if !name.blank? && @klass.attachment_definitions.keys.include?(name)
[ name ]
else
@klass.attachment_definitions.keys
end
end
namespace :paperclip do
desc "Regenerates thumbnails for a given CLASS (and optional ATTACHMENT)"
task :refresh => :environment do
klass = obtain_class
names = obtain_attachments
instances = klass.all
puts "Regenerating thumbnails for #{instances.length} instances of #{klass.name}:"
instances.each do |instance|
names.each do |name|
result = if instance.send("#{ name }?")
instance.send(name).reprocess!
instance.send(name).save
else
true
end
print result ? "." : "x"; $stdout.flush
end
end
puts " Done."
end
end