63 lines
1.7 KiB
Ruby
63 lines
1.7 KiB
Ruby
# encoding: utf-8
|
|
|
|
class ImageAttachmentUploader < CarrierWave::Uploader::Base
|
|
|
|
# Include RMagick or MiniMagick support:
|
|
# include CarrierWave::RMagick
|
|
include CarrierWave::MiniMagick
|
|
|
|
# Include the Sprockets helpers for Rails 3.1+ asset pipeline compatibility:
|
|
# include Sprockets::Helpers::RailsHelper
|
|
# include Sprockets::Helpers::IsolatedHelper
|
|
|
|
# Override the directory where uploaded files will be stored.
|
|
# This is a sensible default for uploaders that are meant to be mounted:
|
|
def store_dir
|
|
"uploads/image_attachments/#{mounted_as}/#{model.id}"
|
|
end
|
|
|
|
# Provide a default URL as a default if there hasn't been a file uploaded:
|
|
def default_url
|
|
# For Rails 3.1+ asset pipeline compatibility:
|
|
return Image::DefaultProfileUrl
|
|
end
|
|
|
|
# Process files as they are uploaded:
|
|
# process :scale => [200, 300]
|
|
#
|
|
# def scale(width, height)
|
|
# # do something
|
|
# end
|
|
|
|
# Create different versions of your uploaded files:
|
|
version :large do
|
|
process :resize_to_fill => [600, 400]
|
|
end
|
|
version :medium do
|
|
process :resize_to_fill => [400, 266]
|
|
end
|
|
version :small do
|
|
process :resize_to_fill => [400, 266]
|
|
end
|
|
# slightly smaller than the normal thumb
|
|
version :thumb_explore do
|
|
process :resize_to_fill => [200, 133]
|
|
end
|
|
|
|
# Add a white list of extensions which are allowed to be uploaded.
|
|
# For images you might use something like this:
|
|
def extension_white_list
|
|
%w(jpg jpeg png)
|
|
end
|
|
|
|
# Override the filename of the uploaded files:
|
|
# Avoid using model.id or version_name here, see uploader/store.rb for details.
|
|
# def filename
|
|
# "something.jpg" if original_filename
|
|
# end
|
|
|
|
def cache_dir
|
|
"#{Rails.root}/tmp/uploads"
|
|
end
|
|
|
|
end
|