Module: Grip::ClassMethods

Defined in:
lib/grip.rb

Instance Method Summary collapse

Instance Method Details

#attachment_definitions ⇒ Object 



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# File 'lib/grip.rb', line 52

def attachment_definitions
  read_inheritable_attribute(:attachment_definitions)
end

#has_grid_attachment(name) ⇒ Object 



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# File 'lib/grip.rb', line 26

def has_grid_attachment(name)
  write_inheritable_attribute(:attachment_definitions, {}) if attachment_definitions.nil?
  attachment_definitions[name] = {}
  
  after_save :save_attachments
  before_destroy :destroy_attached_files
  
  key "#{name}_size".to_sym, Integer
  key "#{name}_path".to_sym, String
  key "#{name}_name".to_sym, String
  key "#{name}_content_type".to_sym, String
  
  define_method(name) do
    GridFS::GridStore.read(self.class.database, self["#{name}_path"])
  end
  
  define_method("#{name}=") do |file|
    self['_id']                  = Mongo::ObjectID.new if _id.blank?
    self["#{name}_size"]         = File.size(file)
    self["#{name}_name"]         = File.basename(file.path)
    self["#{name}_path"]         = "#{self.class.to_s.underscore}/#{name}/#{_id}"
    self["#{name}_content_type"] = file.content_type rescue MIME::Types.type_for(self["#{name}_name"]).to_s
    self.class.attachment_definitions[name] = file
  end
end