CarrierWave::DataUri

Carrierwave plugin that allows to create images from data uri

⚠️ Please read the migration notes before upgrading to a new major version.

Installation

Add this line to your application's Gemfile:

gem 'carrierwave-data-uri'

And then execute:

$ bundle

Or install it yourself as:

$ gem install carrierwave-data-uri

Usage

class User < ActiveRecord::Base
  mount_uploader :avatar, AvatarUploader
end

Then a data string can be used as a source for the uploader

user = User.find 123
user.avatar_data_uri = 'data:image/gif;base64,R0lGODlhAQABAJEAAAAAAP////8AAP///yH5BAEAAAMALAAAAAABAAEAAAICVAEAOw=='
user.save

the data string can be retrieved too

user.avatar_data_uri # => data:image/gif;base64,R0lGODlhAQABAJEAAAAAAP////8AAP///yH5BAEAAAMALAAAAAABAAEAAAICVAEAOw==

There will be no error in case of empty or invalid data. There is a loud version available that could be used to raise an error on empty or invalid data:

user = User.find 123
user.avatar_data_uri_loud = '' # will raise `CarrierWave::DataUri::InvalidData` error

Optionally, to customize the file name, specify the #{column}_data_filename and #{column}_data_mimetype attributes before the #{column}_data_uri attribute.

user = User.find 123
user.avatar_data_filename = 'somefile.jpg'
user.avatar_data_mimetype = 'image/jpeg'
user.avatar_data_uri = 'data:image/gif;base64,R0lGODlhAQABAJEAAAAAAP////8AAP///yH5BAEAAAMALAAAAAABAAEAAAICVAEAOw=='
user.save

Migration Notes

Version 0.2.0

• Assigning empty data is not raising an error now. Use loud version(model.field_data_uri_loud =) instead.

Contributing

1. Fork it ( https://github.com/[my-github-username]/carrierwave-data-uri/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Credits

• http://www.davehulihan.com/uploading-data-uris-in-carrierwave/