Griddle is a file attachment gem for use with mongo-ruby-driver.
Install the gem:
gem install griddle
A class with a grid attachment:
class Document
include Griddle::HasGridAttachment
has_grid_attachment :image, :styles=>{
:thumb => "50x50#"
}
end
Or, alternately if you're using an object model
class Document
include MongoMapper::Document
include Griddle::HasGridAttachment
has_grid_attachment :image, :styles=>{
:thumb => "50x50#"
}
end
Create a document:
@document = Document.new
@document.image = File.new("attached_file.jpg", 'rb')
@document.save_attached_files
Or, if you're using an object model, saved_attached_files is called after_save:
image = File.new("attached_file.jpg", 'rb')
@document = Document.new(:image => image)
@document.save
The contents of a file stored in GridFileSystem can be retrieved using Mongo::GridIO accessed by the file method:
@document.image.file
=> <#Mongo::GridIO>
@document.image.file.read
=> contents of file
Some other methods that may be helpful to know:
# does the attachment exist?
@document.image.exist?
=> true
# attachment file name
@document.image.file_name
=> attached_file.jpg
# attachment grid key
@document.image.grid_key
=> document/12345/image/attached_file.jpg
Griddle makes use of ImageMagik processor to fit and/or crop images and store different image styles:
@document.image.styles
=> {:thumb => '50x50#'}
Each style is saved as a Griddle::Attachment as well:
@document.image.thumb.exist?
=> true
@document.image.thumb.file_name
=> attached_file.jpg
@document.image.thumb.grid_key
=> documents/12345/images/attached_file.jpg
- Fork the project.
- Make your feature addition or bug fix.
- Add tests for it. This is important so I don't break it in a future version unintentionally.
- Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
- Send me a pull request. Bonus points for topic branches.
Copyright (c) 2010 Matt Matt san Mongeau. See LICENSE for details.