Module: MongoidExt::Storage::ClassMethods

Defined in:
lib/mongoid_ext/storage.rb

Instance Method Summary collapse

Instance Method Details

#file_key(name, opts = {}) ⇒ Object 



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# File 'lib/mongoid_ext/storage.rb', line 75

def file_key(name, opts = {})
  opts[:in] ||= :file_list

  define_method("#{name}=") do |file|
    if opts[:max_length] && file.respond_to?(:size) && file.size > opts[:max_length]
      errors.add(name, I18n.t("mongoid_ext.storage.errors.max_length", :default => "file is too long. max length is #{opts[:max_length]} bytes"))
    end

    if cb = opts[:validate]
      if cb.kind_of?(Symbol)
        send(opts[:validate], file)
      elsif cb.kind_of?(Proc)
        cb.call(file)
      end
    end

    if self.errors[name].blank?
      send(opts[:in]).get(name.to_s).put(name.to_s, file)
    else
      # we store the errors here because we want to validate before storing the file
      mm_storage_errors.merge!(errors.errors)
    end
  end

  define_method(name) do
    send(opts[:in]).get(name.to_s)
  end

  define_method("has_#{name}?") do
    send(opts[:in]).has_key?(name.to_s)
  end
end

#file_list(name) ⇒ Object 



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# File 'lib/mongoid_ext/storage.rb', line 49

def file_list(name)
  field name, :type => MongoidExt::FileList
  define_method(name) do
    list = self[name]

    if list.nil?
      list = self[name] = MongoidExt::FileList.new
    elsif list.class == BSON::OrderedHash || list.class == Hash
      list = self[name] = MongoidExt::FileList.new(list)
    end

    list.parent_document = self
    list
  end

  set_callback(:create, :after) do |doc|
    l = doc.send(name)
    l.sync_files
    doc.save(:validate => false)
  end

  set_callback(:destroy, :before) do |doc|
    doc.send(name).destroy_files
  end
end

#gridfs ⇒ Object 



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# File 'lib/mongoid_ext/storage.rb', line 45

def gridfs
  @gridfs ||= Mongo::Grid.new(self.db)
end