module CarrierWave::Uploader::Store

Override this in your Uploader to change the filename.

Be careful using record ids as filenames. If the filename is stored in the database the record id will be nil when the filename is set. Don’t use record ids unless you understand this limitation.

Do not use the version_name in the filename, as it will prevent versions from being loaded correctly.

Returns

String

a filename

# File lib/carrierwave/uploader/store.rb, line 24
def filename
  @filename
end

Retrieves the file from the storage.

Parameters

identifier (String)

uniquely identifies the file to retrieve

# File lib/carrierwave/uploader/store.rb, line 70
def retrieve_from_store!(identifier)
  with_callbacks(:retrieve_from_store, identifier) do
    @file = storage.retrieve!(identifier)
  end
end

Stores the file by passing it to this Uploader’s storage engine.

If new_file is omitted, a previously cached file will be stored.

Parameters

new_file (File, IOString, Tempfile)

any kind of file object

# File lib/carrierwave/uploader/store.rb, line 53
def store!(new_file=nil)
  cache!(new_file) if new_file
  if @file and @cache_id
    with_callbacks(:store, new_file) do
      @file = storage.store!(@file)
      @cache_id = nil
    end
  end
end

Calculates the path where the file should be stored. If for_file is given, it will be used as the filename, otherwise +CarrierWave::Uploader#filename+ is assumed.

Parameters

for_file (String)

name of the file <optional>

Returns

String

the store path

# File lib/carrierwave/uploader/store.rb, line 40
def store_path(for_file=filename)
  File.join([store_dir, full_filename(for_file)].compact)
end