Module IOStream
In: lib/paperclip/iostream.rb

Provides method that can be included on File-type objects (IO, StringIO, Tempfile, etc) to allow stream copying and Tempfile conversion.

Methods

stream_to   to_tempfile  

Public Instance methods

stream_to(object, path_or_file, in_blocks_of = 8192)

Copies one read-able object from one place to another in blocks, obviating the need to load the whole thing into memory. Defaults to 8k blocks. Returns a File if a String is passed in as the destination and returns the IO or Tempfile as passed in if one is sent as the destination.

[Source]

    # File lib/paperclip/iostream.rb, line 16
16:   def stream_to object, path_or_file, in_blocks_of = 8192
17:     dstio = case path_or_file
18:             when String   then File.new(path_or_file, "wb+")
19:             when IO       then path_or_file
20:             when Tempfile then path_or_file
21:             end
22:     buffer = ""
23:     object.rewind
24:     while object.read(in_blocks_of, buffer) do
25:       dstio.write(buffer)
26:     end
27:     dstio.rewind
28:     dstio
29:   end
to_tempfile(object)

Returns a Tempfile containing the contents of the readable object.

[Source]

    # File lib/paperclip/iostream.rb, line 5
 5:   def to_tempfile(object)
 6:     return object.to_tempfile if object.respond_to?(:to_tempfile)
 7:     name = object.respond_to?(:original_filename) ? object.original_filename : (object.respond_to?(:path) ? object.path : "stream")
 8:     tempfile = Paperclip::Tempfile.new(["stream", File.extname(name)])
 9:     tempfile.binmode
10:     stream_to(object, tempfile)
11:   end

[Validate]